(* 'top'-like tool for libvirt domains.
- * $Id: virt_top.ml,v 1.5 2007/08/30 13:52:40 rjones Exp $
- *)
+ (C) Copyright 2007-2009 Richard W.M. Jones, Red Hat Inc.
+ http://libvirt.org/
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*)
open Printf
open ExtList
open Curses
+open Virt_top_gettext.Gettext
+open Virt_top_utils
+
module C = Libvirt.Connect
module D = Libvirt.Domain
module N = Libvirt.Network
+let rcfile = ".virt-toprc"
+
(* Hook for XML support (see virt_top_xml.ml). *)
let parse_device_xml : (int -> [>`R] D.t -> string list * string list) ref =
ref (
(* Hooks for CSV support (see virt_top_csv.ml). *)
let csv_start : (string -> unit) ref =
ref (
- fun _ -> failwith "virt-top was compiled without support for CSV"
+ fun _ -> failwith (s_"virt-top was compiled without support for CSV files")
)
let csv_write : (string list -> unit) ref =
ref (
fun _ -> ()
)
-(* Int64 operators for convenience. *)
-let (+^) = Int64.add
-let (-^) = Int64.sub
-let ( *^ ) = Int64.mul
-let (/^) = Int64.div
+(* Hook for calendar support (see virt_top_calendar.ml). *)
+let parse_date_time : (string -> float) ref =
+ ref (
+ fun _ ->
+ failwith (s_"virt-top was compiled without support for dates and times")
+ )
+(* Sort order. *)
type sort_order =
| DomainID | DomainName | Processor | Memory | Time
| NetRX | NetTX | BlockRdRq | BlockWrRq
NetRX; NetTX; BlockRdRq; BlockWrRq
]
let printable_sort_order = function
- | Processor -> "%CPU"
- | Memory -> "%MEM"
- | Time -> "TIME (CPU time)"
- | DomainID -> "Domain ID"
- | DomainName -> "Domain name"
- | NetRX -> "Net RX bytes"
- | NetTX -> "Net TX bytes"
- | BlockRdRq -> "Block read reqs"
- | BlockWrRq -> "Block write reqs"
+ | Processor -> s_"%CPU"
+ | Memory -> s_"%MEM"
+ | Time -> s_"TIME (CPU time)"
+ | DomainID -> s_"Domain ID"
+ | DomainName -> s_"Domain name"
+ | NetRX -> s_"Net RX bytes"
+ | NetTX -> s_"Net TX bytes"
+ | BlockRdRq -> s_"Block read reqs"
+ | BlockWrRq -> s_"Block write reqs"
+let sort_order_of_cli = function
+ | "cpu" | "processor" -> Processor
+ | "mem" | "memory" -> Memory
+ | "time" -> Time
+ | "id" -> DomainID
+ | "name" -> DomainName
+ | "netrx" -> NetRX | "nettx" -> NetTX
+ | "blockrdrq" -> BlockRdRq | "blockwrrq" -> BlockWrRq
+ | str ->
+ failwithf (f_"%s: sort order should be: %s")
+ str "cpu|mem|time|id|name|netrx|nettx|blockrdrq|blockwrrq"
+let cli_of_sort_order = function
+ | Processor -> "cpu"
+ | Memory -> "mem"
+ | Time -> "time"
+ | DomainID -> "id"
+ | DomainName -> "name"
+ | NetRX -> "netrx"
+ | NetTX -> "nettx"
+ | BlockRdRq -> "blockrdrq"
+ | BlockWrRq -> "blockwrrq"
(* Current major display mode: TaskDisplay is the normal display. *)
type display = TaskDisplay | PCPUDisplay | BlockDisplay | NetDisplay
+let display_of_cli = function
+ | "task" -> TaskDisplay
+ | "pcpu" -> PCPUDisplay
+ | "block" -> BlockDisplay
+ | "net" -> NetDisplay
+ | str ->
+ failwithf (f_"%s: display should be %s") str "task|pcpu|block|net"
+let cli_of_display = function
+ | TaskDisplay -> "task"
+ | PCPUDisplay -> "pcpu"
+ | BlockDisplay -> "block"
+ | NetDisplay -> "net"
+
+(* Init file. *)
+type init_file = NoInitFile | DefaultInitFile | InitFile of string
+
(* Settings. *)
let quit = ref false
let delay = ref 3000 (* milliseconds *)
let historical_cpu_delay = ref 20 (* secs *)
let iterations = ref (-1)
+let end_time = ref None
let batch_mode = ref false
let secure_mode = ref false
let sort_order = ref Processor
let uri = ref None
let debug_file = ref ""
let csv_enabled = ref false
+let csv_cpu = ref true
+let csv_block = ref true
+let csv_net = ref true
+let init_file = ref DefaultInitFile
+let script_mode = ref false
+
+(* Tuple of never-changing data returned by start_up function. *)
+type setup =
+ Libvirt.ro C.t * bool * bool * bool * C.node_info * string *
+ (int * int * int)
(* Function to read command line arguments and go into curses mode. *)
let start_up () =
(* Read command line arguments. *)
let rec set_delay newdelay =
if newdelay <= 0. then
- failwith "-d: cannot set a negative delay";
+ failwith (s_"-d: cannot set a negative delay");
delay := int_of_float (newdelay *. 1000.)
and set_uri = function "" -> uri := None | u -> uri := Some u
- and set_sort = function
- | "cpu" | "processor" -> sort_order := Processor
- | "mem" | "memory" -> sort_order := Memory
- | "time" -> sort_order := Time
- | "id" -> sort_order := DomainID
- | "name" -> sort_order := DomainName
- | "netrx" -> sort_order := NetRX | "nettx" -> sort_order := NetTX
- | "blockrdrq" -> sort_order := BlockRdRq
- | "blockwrrq" -> sort_order := BlockWrRq
- | str -> failwith (str ^ ": sort order should be: cpu|mem|time|id|name|netrx|nettx|blockrdrq|blockwrrq")
+ and set_sort order = sort_order := sort_order_of_cli order
and set_pcpu_mode () = display_mode := PCPUDisplay
and set_net_mode () = display_mode := NetDisplay
and set_block_mode () = display_mode := BlockDisplay
and set_csv filename =
(!csv_start) filename;
csv_enabled := true
+ and no_init_file () = init_file := NoInitFile
+ and set_init_file filename = init_file := InitFile filename
+ and set_end_time time = end_time := Some ((!parse_date_time) time)
+ and display_version () =
+ printf "virt-top %s ocaml-libvirt %s\n"
+ Virt_top_version.version Libvirt_version.version;
+ exit 0
in
let argspec = Arg.align [
- "-1", Arg.Unit set_pcpu_mode, " Start by displaying pCPUs (default: tasks)";
- "-2", Arg.Unit set_net_mode, " Start by displaying network interfaces";
- "-3", Arg.Unit set_block_mode, " Start by displaying block devices";
- "-b", Arg.Set batch_mode, " Batch mode";
- "-c", Arg.String set_uri, "uri Connect to URI (default: Xen)";
- "--connect", Arg.String set_uri, "uri Connect to URI (default: Xen)";
- "--csv", Arg.String set_csv, "file Log statistics to CSV file";
- "-d", Arg.Float set_delay, "delay Delay time interval (seconds)";
- "--debug", Arg.Set_string debug_file, "file Send debug messages to file";
- "--hist-cpu", Arg.Set_int historical_cpu_delay, "secs Historical CPU delay";
- "-n", Arg.Set_int iterations, "iterations Number of iterations to run";
- "-o", Arg.String set_sort, "sort Set sort order (cpu|mem|time|id|name)";
- "-s", Arg.Set secure_mode, " Secure (\"kiosk\") mode";
+ "-1", Arg.Unit set_pcpu_mode,
+ " " ^ s_"Start by displaying pCPUs (default: tasks)";
+ "-2", Arg.Unit set_net_mode,
+ " " ^ s_"Start by displaying network interfaces";
+ "-3", Arg.Unit set_block_mode,
+ " " ^ s_"Start by displaying block devices";
+ "-b", Arg.Set batch_mode,
+ " " ^ s_"Batch mode";
+ "-c", Arg.String set_uri,
+ "uri " ^ s_"Connect to URI (default: Xen)";
+ "--connect", Arg.String set_uri,
+ "uri " ^ s_"Connect to URI (default: Xen)";
+ "--csv", Arg.String set_csv,
+ "file " ^ s_"Log statistics to CSV file";
+ "--no-csv-cpu", Arg.Clear csv_cpu,
+ " " ^ s_"Disable CPU stats in CSV";
+ "--no-csv-block", Arg.Clear csv_block,
+ " " ^ s_"Disable block device stats in CSV";
+ "--no-csv-net", Arg.Clear csv_net,
+ " " ^ s_"Disable net stats in CSV";
+ "-d", Arg.Float set_delay,
+ "delay " ^ s_"Delay time interval (seconds)";
+ "--debug", Arg.Set_string debug_file,
+ "file " ^ s_"Send debug messages to file";
+ "--end-time", Arg.String set_end_time,
+ "time " ^ s_"Exit at given time";
+ "--hist-cpu", Arg.Set_int historical_cpu_delay,
+ "secs " ^ s_"Historical CPU delay";
+ "--init-file", Arg.String set_init_file,
+ "file " ^ s_"Set name of init file";
+ "--no-init-file", Arg.Unit no_init_file,
+ " " ^ s_"Do not read init file";
+ "-n", Arg.Set_int iterations,
+ "iterations " ^ s_"Number of iterations to run";
+ "-o", Arg.String set_sort,
+ "sort " ^ sprintf (f_"Set sort order (%s)") "cpu|mem|time|id|name";
+ "-s", Arg.Set secure_mode,
+ " " ^ s_"Secure (\"kiosk\") mode";
+ "--script", Arg.Set script_mode,
+ " " ^ s_"Run from a script (no user interface)";
+ "--version", Arg.Unit display_version,
+ " " ^ s_"Display version number and exit";
] in
- let anon_fun str = raise (Arg.Bad (str ^ ": unknown parameter")) in
- let usage_msg = "virt-top : a 'top'-like utility for virtualization
+ let anon_fun str =
+ raise (Arg.Bad (sprintf (f_"%s: unknown parameter") str)) in
+ let usage_msg = s_"virt-top : a 'top'-like utility for virtualization
SUMMARY
virt-top [-options]
OPTIONS" in
Arg.parse argspec anon_fun usage_msg;
+ (* Read the init file. *)
+ let try_to_read_init_file filename =
+ let config = read_config_file filename in
+ List.iter (
+ function
+ | _, "display", mode -> display_mode := display_of_cli mode
+ | _, "delay", secs -> set_delay (float_of_string secs)
+ | _, "hist-cpu", secs -> historical_cpu_delay := int_of_string secs
+ | _, "iterations", n -> iterations := int_of_string n
+ | _, "sort", order -> set_sort order
+ | _, "connect", uri -> set_uri uri
+ | _, "debug", filename -> debug_file := filename
+ | _, "csv", filename -> set_csv filename
+ | _, "csv-cpu", b -> csv_cpu := bool_of_string b
+ | _, "csv-block", b -> csv_block := bool_of_string b
+ | _, "csv-net", b -> csv_net := bool_of_string b
+ | _, "batch", b -> batch_mode := bool_of_string b
+ | _, "secure", b -> secure_mode := bool_of_string b
+ | _, "script", b -> script_mode := bool_of_string b
+ | _, "end-time", t -> set_end_time t
+ | _, "overwrite-init-file", "false" -> no_init_file ()
+ | lineno, key, _ ->
+ eprintf (f_"%s:%d: configuration item ``%s'' ignored\n%!")
+ filename lineno key
+ ) config
+ in
+ (match !init_file with
+ | NoInitFile -> ()
+ | DefaultInitFile ->
+ let home = try Sys.getenv "HOME" with Not_found -> "/" in
+ let filename = home // rcfile in
+ try_to_read_init_file filename
+ | InitFile filename ->
+ try_to_read_init_file filename
+ );
+
(* Connect to the hypervisor before going into curses mode, since
* this is the most likely thing to fail.
*)
prerr_endline (Libvirt.Virterror.to_string err);
(* If non-root and no explicit connection URI, print a warning. *)
if Unix.geteuid () <> 0 && name = None then (
- print_endline "NB: If you want to monitor a local Xen hypervisor, you usually need to be root";
+ print_endline (s_"NB: If you want to monitor a local Xen hypervisor, you usually need to be root");
);
exit 1 in
let hostname =
try C.get_hostname conn
with
- | Invalid_argument "virConnectGetHostname not supported" -> "unknown" in
+ (* qemu:/// and other URIs didn't support virConnectGetHostname until
+ * libvirt 0.3.3. Before that they'd throw a virterror. *)
+ | Libvirt.Virterror _
+ | Libvirt.Not_supported "virConnectGetHostname" -> "unknown" in
let libvirt_version =
let v, _ = Libvirt.get_version () in
* NB: Do this just before jumping into curses mode.
*)
(match !debug_file with
- | "" -> (* No debug file specified, send stderr to /dev/null. *)
- (try
- let fd = Unix.openfile "/dev/null" [Unix.O_WRONLY] 0o644 in
- Unix.dup2 fd Unix.stderr;
- Unix.close fd
- with
- Unix.Unix_error _ -> ()
+ | "" -> (* No debug file specified, send stderr to /dev/null unless
+ * we're in script mode.
+ *)
+ if not !script_mode then (
+ let fd = Unix.openfile "/dev/null" [Unix.O_WRONLY] 0o644 in
+ Unix.dup2 fd Unix.stderr;
+ Unix.close fd
)
| filename -> (* Send stderr to the named file. *)
let fd =
);
(* Curses voodoo (see ncurses(3)). *)
- let stdscr =
- initscr ();
- cbreak ();
- noecho ();
+ if not !script_mode then (
+ ignore (initscr ());
+ ignore (cbreak ());
+ ignore (noecho ());
nonl ();
let stdscr = stdscr () in
- intrflush stdscr false;
- keypad stdscr true;
- stdscr in
+ ignore (intrflush stdscr false);
+ ignore (keypad stdscr true);
+ ()
+ );
- (* This tuple of static information is called 'state' in other parts
+ (* This tuple of static information is called 'setup' in other parts
* of this program, and is passed to other functions such as redraw and
- * main_loop. See virt_top_main.ml. It's not really "state" though.
+ * main_loop. See virt_top_main.ml.
*)
- conn, stdscr, node_info, hostname, libvirt_version
-
-(* Show a percentage in 4 chars. *)
-let show_percent percent =
- if percent <= 0. then " 0.0"
- else if percent <= 9.9 then sprintf " %1.1f" percent
- else if percent <= 99.9 then sprintf "%2.1f" percent
- else "100 "
-
-(* Show an int64 option in 4 chars. *)
-let rec show_int64_option = function
- | None -> " "
- | Some n -> show_int64 n
-(* Show an int64 in 4 chars. *)
-and show_int64 = function
- | n when n < 0L -> "-!!!"
- | n when n <= 9999L ->
- sprintf "%4Ld" n
- | n when n /^ 1024L <= 999L ->
- sprintf "%3LdK" (n /^ 1024L)
- | n when n /^ 1_048_576L <= 999L ->
- sprintf "%3LdM" (n /^ 1_048_576L)
- | n when n /^ 1_073_741_824L <= 999L ->
- sprintf "%3LdG" (n /^ 1_073_741_824L)
- | _ -> ">!!!"
-
-(* Format the total time (may be large!) in 9 chars. *)
-let show_time ns =
- let secs_in_ns = 1_000_000_000L in
- let mins_in_ns = 60_000_000_000L in
- let hours_in_ns = 3_600_000_000_000L in
-
- let hours = ns /^ hours_in_ns in
- let ns = ns -^ (hours *^ hours_in_ns) in
- let mins = ns /^ mins_in_ns in
- let ns = ns -^ (mins *^ mins_in_ns) in
- let secs = ns /^ secs_in_ns in
- let ns = ns -^ (secs *^ secs_in_ns) in
- let pennies = ns /^ 10_000_000L in
-
- if hours < 12L then
- sprintf "%3Ld:%02Ld.%02Ld" (hours *^ 60L +^ mins) secs pennies
- else if hours <= 999L then
- sprintf "%3Ld:%02Ld:%02Ld" hours mins secs
- else (
- let days = hours /^ 24L in
- let hours = hours -^ (days *^ 24L) in
- sprintf "%3Ldd%02Ld:%02Ld" days hours mins
+ (conn,
+ !batch_mode, !script_mode, !csv_enabled, (* immutable modes *)
+ node_info, hostname, libvirt_version (* info that doesn't change *)
)
(* Show a domain state (the 'S' column). *)
| D.InfoShutoff -> 'O'
| D.InfoCrashed -> 'X'
-(* Sum Domain.block_stats structures together. Missing fields
- * get forced to 0. Empty list returns all 0.
- *)
-let zero_block_stats =
- { D.rd_req = 0L; rd_bytes = 0L; wr_req = 0L; wr_bytes = 0L; errs = 0L }
-let add_block_stats bs1 bs2 =
- let add f1 f2 = if f1 >= 0L && f2 >= 0L then f1 +^ f2 else 0L in
- { D.rd_req = add bs1.D.rd_req bs2.D.rd_req;
- rd_bytes = add bs1.D.rd_bytes bs2.D.rd_bytes;
- wr_req = add bs1.D.wr_req bs2.D.wr_req;
- wr_bytes = add bs1.D.wr_bytes bs2.D.wr_bytes;
- errs = add bs1.D.errs bs2.D.errs }
-let sum_block_stats =
- List.fold_left add_block_stats zero_block_stats
-
-(* Get the difference between two block_stats structures. Missing data
- * forces the difference to -1.
- *)
-let diff_block_stats curr prev =
- let sub f1 f2 = if f1 >= 0L && f2 >= 0L then f1 -^ f2 else -1L in
- { D.rd_req = sub curr.D.rd_req prev.D.rd_req;
- rd_bytes = sub curr.D.rd_bytes prev.D.rd_bytes;
- wr_req = sub curr.D.wr_req prev.D.wr_req;
- wr_bytes = sub curr.D.wr_bytes prev.D.wr_bytes;
- errs = sub curr.D.errs prev.D.errs }
-
-(* Sum Domain.interface_stats structures together. Missing fields
- * get forced to 0. Empty list returns all 0.
- *)
-let zero_interface_stats =
- { D.rx_bytes = 0L; rx_packets = 0L; rx_errs = 0L; rx_drop = 0L;
- tx_bytes = 0L; tx_packets = 0L; tx_errs = 0L; tx_drop = 0L }
-let add_interface_stats is1 is2 =
- let add f1 f2 = if f1 >= 0L && f2 >= 0L then f1 +^ f2 else 0L in
- { D.rx_bytes = add is1.D.rx_bytes is2.D.rx_bytes;
- rx_packets = add is1.D.rx_packets is2.D.rx_packets;
- rx_errs = add is1.D.rx_errs is2.D.rx_errs;
- rx_drop = add is1.D.rx_drop is2.D.rx_drop;
- tx_bytes = add is1.D.tx_bytes is2.D.tx_bytes;
- tx_packets = add is1.D.tx_packets is2.D.tx_packets;
- tx_errs = add is1.D.tx_errs is2.D.tx_errs;
- tx_drop = add is1.D.tx_drop is2.D.tx_drop }
-let sum_interface_stats =
- List.fold_left add_interface_stats zero_interface_stats
-
-(* Get the difference between two interface_stats structures.
- * Missing data forces the difference to -1.
- *)
-let diff_interface_stats curr prev =
- let sub f1 f2 = if f1 >= 0L && f2 >= 0L then f1 -^ f2 else -1L in
- { D.rx_bytes = sub curr.D.rx_bytes prev.D.rx_bytes;
- rx_packets = sub curr.D.rx_packets prev.D.rx_packets;
- rx_errs = sub curr.D.rx_errs prev.D.rx_errs;
- rx_drop = sub curr.D.rx_drop prev.D.rx_drop;
- tx_bytes = sub curr.D.tx_bytes prev.D.tx_bytes;
- tx_packets = sub curr.D.tx_packets prev.D.tx_packets;
- tx_errs = sub curr.D.tx_errs prev.D.tx_errs;
- tx_drop = sub curr.D.tx_drop prev.D.tx_drop }
-
-(* Update the display and sleep for given number of seconds. *)
-let sleep n = refresh (); Unix.sleep n
+(* Sleep in seconds. *)
+let sleep = Unix.sleep
+
+(* Sleep in milliseconds. *)
+let usleep n =
+ ignore (Unix.select [] [] [] (float n /. 1000.))
(* The curses getstr/getnstr functions are just weird.
* This helper function also enables echo temporarily.
*)
let get_string maxlen =
- echo ();
+ ignore (echo ());
let str = String.create maxlen in
let ok = getstr str in (* Safe because binding calls getnstr. *)
- noecho ();
+ ignore (noecho ());
if not ok then ""
else (
(* Chop at first '\0'. *)
Not_found -> str (* it is full maxlen bytes *)
)
-(* Pad a string to the full width with spaces. If too long, truncate. *)
-let pad width str =
- let n = String.length str in
- if n = width then str
- else if n > width then String.sub str 0 width
- else (* if n < width then *) str ^ String.make (width-n) ' '
-
(* Line numbers. *)
let top_lineno = 0
let summary_lineno = 1 (* this takes 2 lines *)
let header_lineno = 4
let domains_lineno = 5
+(* Easier to use versions of curses functions addstr, mvaddstr, etc. *)
+let move y x = ignore (move y x)
+let refresh () = ignore (refresh ())
+let addch c = ignore (addch (int_of_char c))
+let addstr s = ignore (addstr s)
+let mvaddstr y x s = ignore (mvaddstr y x s)
+
(* Print in the "message area". *)
let clear_msg () = move message_lineno 0; clrtoeol ()
-let print_msg str = clear_msg (); mvaddstr message_lineno 0 str; ()
-
-(* Write CSV header row. *)
-let write_csv_header () =
- (!csv_write) [ "Hostname"; "Time"; "Arch"; "Physical CPUs";
- "Count"; "Running"; "Blocked"; "Paused"; "Shutdown";
- "Shutoff"; "Crashed"; "Active"; "Inactive";
- "%CPU"; "Total memory KB"; "Total guest memory KB";
- "Total CPU time ns" ]
+let print_msg str = clear_msg (); mvaddstr message_lineno 0 str
(* Intermediate "domain + stats" structure that we use to collect
- * everything we know about a domain within the redraw function.
+ * everything we know about a domain within the collect function.
*)
type rd_domain = Inactive | Active of rd_active
and rd_active = {
rd_net_tx_bytes : int64 option; (* Number of bytes transmitted. *)
}
-(* Redraw the display. *)
-let redraw, clear_pcpu_display_data =
+(* Collect stats. *)
+let collect, clear_pcpu_display_data =
(* We cache the list of block devices and interfaces for each domain
* here, so we don't need to reparse the XML each time.
*)
(* Save vcpuinfo structures across redraws too (only for pCPU display). *)
let last_vcpu_info = Hashtbl.create 13 in
- (* Keep a historical list of %CPU usages. *)
- let historical_cpu = ref [] in
- let historical_cpu_last_time = ref (Unix.gettimeofday ()) in
-
- let redraw (conn, stdscr, node_info, hostname, _) =
- clear ();
-
- (* Get the screen/window size. *)
- let lines, cols = get_size () in
+ let clear_pcpu_display_data () =
+ (* Clear out vcpu_info used by PCPUDisplay display_mode
+ * when we switch back to TaskDisplay mode.
+ *)
+ Hashtbl.clear last_vcpu_info
+ in
+ let collect (conn, _, _, _, node_info, _, _) =
(* Number of physical CPUs (some may be disabled). *)
let nr_pcpus = C.maxcpus_of_node_info node_info in
let tm = Unix.localtime time in
let printable_time =
sprintf "%02d:%02d:%02d" tm.Unix.tm_hour tm.Unix.tm_min tm.Unix.tm_sec in
- mvaddstr top_lineno 0 ("virt-top " ^ printable_time ^ " - ");
(* What's the total CPU time elapsed since we were last called? (ns) *)
let total_cpu_per_pcpu = 1_000_000_000. *. (time -. !last_time) in
if total_cpu_per_pcpu <= 0. then 1. else total_cpu_per_pcpu in
let total_cpu = float node_info.C.cpus *. total_cpu_per_pcpu in
- (* Basic node_info. *)
- addstr (sprintf "%s %d/%dCPU %dMHz %LdMB "
- node_info.C.model node_info.C.cpus nr_pcpus node_info.C.mhz
- (node_info.C.memory /^ 1024L));
- (* Save the cursor position for when we come to draw the
- * historical CPU times (down in this function).
- *)
- let historical_cursor = getyx stdscr in
-
(* Get the domains. Match up with their last_info (if any). *)
let doms =
(* Active domains. *)
let block_stats =
try List.map (fun dev -> dev, D.block_stats dom dev) blkdevs
with
- | Invalid_argument "virDomainBlockStats not supported"
+ | Libvirt.Not_supported "virDomainBlockStats"
| Libvirt.Virterror _ -> [] in
let interface_stats =
try List.map (fun dev -> dev, D.interface_stats dom dev) netifs
with
- | Invalid_argument "virDomainInterfaceStats not supported"
+ | Libvirt.Not_supported "virDomainInterfaceStats"
| Libvirt.Virterror _ -> [] in
let prev_info, prev_block_stats, prev_interface_stats =
) ids in
(* Inactive domains. *)
- let n = C.num_of_defined_domains conn in
- let names =
- if n > 0 then Array.to_list (C.list_defined_domains conn n)
- else [] in
- let doms_inactive = List.map (fun name -> name, Inactive) names in
+ let doms_inactive =
+ try
+ let n = C.num_of_defined_domains conn in
+ let names =
+ if n > 0 then Array.to_list (C.list_defined_domains conn n)
+ else [] in
+ List.map (fun name -> name, Inactive) names
+ with
+ (* Ignore transient errors, in particular errors from
+ * num_of_defined_domains if it cannot contact xend.
+ *)
+ | Libvirt.Virterror _ -> [] in
doms @ doms_inactive in
| rd -> rd
) doms in
+ (* Collect some extra information in PCPUDisplay display_mode. *)
+ let pcpu_display =
+ if !display_mode = PCPUDisplay then (
+ (* Get the VCPU info and VCPU->PCPU mappings for active domains.
+ * Also cull some data we don't care about.
+ *)
+ let doms = List.filter_map (
+ function
+ | (name, Active rd) ->
+ (try
+ let domid = rd.rd_domid in
+ let maplen = C.cpumaplen nr_pcpus in
+ let maxinfo = rd.rd_info.D.nr_virt_cpu in
+ let nr_vcpus, vcpu_infos, cpumaps =
+ D.get_vcpus rd.rd_dom maxinfo maplen in
+
+ (* Got previous vcpu_infos for this domain? *)
+ let prev_vcpu_infos =
+ try Some (Hashtbl.find last_vcpu_info domid)
+ with Not_found -> None in
+ (* Update last_vcpu_info. *)
+ Hashtbl.replace last_vcpu_info domid vcpu_infos;
+
+ (match prev_vcpu_infos with
+ | Some prev_vcpu_infos
+ when Array.length prev_vcpu_infos = Array.length vcpu_infos ->
+ Some (domid, name, nr_vcpus, vcpu_infos, prev_vcpu_infos,
+ cpumaps, maplen)
+ | _ -> None (* ignore missing / unequal length prev_vcpu_infos *)
+ );
+ with
+ Libvirt.Virterror _ -> None(* ignore transient libvirt errs *)
+ )
+ | (_, Inactive) -> None (* ignore inactive doms *)
+ ) doms in
+ let nr_doms = List.length doms in
+
+ (* Rearrange the data into a matrix. Major axis (down) is
+ * pCPUs. Minor axis (right) is domains. At each node we store:
+ * cpu_time (on this pCPU only, nanosecs),
+ * average? (if set, then cpu_time is an average because the
+ * vCPU is pinned to more than one pCPU)
+ * running? (if set, we were instantaneously running on this pCPU)
+ *)
+ let empty_node = (0L, false, false) in
+ let pcpus = Array.make_matrix nr_pcpus nr_doms empty_node in
+
+ List.iteri (
+ fun di (domid, name, nr_vcpus, vcpu_infos, prev_vcpu_infos,
+ cpumaps, maplen) ->
+ (* Which pCPUs can this dom run on? *)
+ for v = 0 to nr_vcpus-1 do
+ let pcpu = vcpu_infos.(v).D.cpu in (* instantaneous pCPU *)
+ let nr_poss_pcpus = ref 0 in (* how many pcpus can it run on? *)
+ for p = 0 to nr_pcpus-1 do
+ (* vcpu v can reside on pcpu p *)
+ if C.cpu_usable cpumaps maplen v p then
+ incr nr_poss_pcpus
+ done;
+ let nr_poss_pcpus = Int64.of_int !nr_poss_pcpus in
+ for p = 0 to nr_pcpus-1 do
+ (* vcpu v can reside on pcpu p *)
+ if C.cpu_usable cpumaps maplen v p then
+ let vcpu_time_on_pcpu =
+ vcpu_infos.(v).D.vcpu_time
+ -^ prev_vcpu_infos.(v).D.vcpu_time in
+ let vcpu_time_on_pcpu =
+ vcpu_time_on_pcpu /^ nr_poss_pcpus in
+ pcpus.(p).(di) <-
+ (vcpu_time_on_pcpu, nr_poss_pcpus > 1L, p = pcpu)
+ done
+ done
+ ) doms;
+
+ (* Sum the CPU time used by each pCPU, for the %CPU column. *)
+ let pcpus_cpu_time = Array.map (
+ fun row ->
+ let cpu_time = ref 0L in
+ for di = 0 to Array.length row-1 do
+ let t, _, _ = row.(di) in
+ cpu_time := !cpu_time +^ t
+ done;
+ Int64.to_float !cpu_time
+ ) pcpus in
+
+ Some (doms, pcpus, pcpus_cpu_time)
+ ) else
+ None in
+
+ (* Calculate totals. *)
+ let totals = List.fold_left (
+ fun (count, running, blocked, paused, shutdown, shutoff,
+ crashed, active, inactive,
+ total_cpu_time, total_memory, total_domU_memory) ->
+ function
+ | (name, Active rd) ->
+ let test state orig =
+ if rd.rd_info.D.state = state then orig+1 else orig
+ in
+ let running = test D.InfoRunning running in
+ let blocked = test D.InfoBlocked blocked in
+ let paused = test D.InfoPaused paused in
+ let shutdown = test D.InfoShutdown shutdown in
+ let shutoff = test D.InfoShutoff shutoff in
+ let crashed = test D.InfoCrashed crashed in
+
+ let total_cpu_time = total_cpu_time +. rd.rd_cpu_time in
+ let total_memory = total_memory +^ rd.rd_info.D.memory in
+ let total_domU_memory = total_domU_memory +^
+ if rd.rd_domid > 0 then rd.rd_info.D.memory else 0L in
+
+ (count+1, running, blocked, paused, shutdown, shutoff,
+ crashed, active+1, inactive,
+ total_cpu_time, total_memory, total_domU_memory)
+
+ | (name, Inactive) -> (* inactive domain *)
+ (count+1, running, blocked, paused, shutdown, shutoff,
+ crashed, active, inactive+1,
+ total_cpu_time, total_memory, total_domU_memory)
+ ) (0,0,0,0,0,0,0,0,0, 0.,0L,0L) doms in
+
+ (* Update last_time, last_info. *)
+ last_time := time;
+ Hashtbl.clear last_info;
+ List.iter (
+ function
+ | (_, Active rd) ->
+ let info = rd.rd_info, rd.rd_block_stats, rd.rd_interface_stats in
+ Hashtbl.add last_info rd.rd_domid info
+ | _ -> ()
+ ) doms;
+
+ (doms,
+ time, printable_time,
+ nr_pcpus, total_cpu, total_cpu_per_pcpu,
+ totals,
+ pcpu_display)
+ in
+
+ collect, clear_pcpu_display_data
+
+(* Redraw the display. *)
+let redraw =
+ (* Keep a historical list of %CPU usages. *)
+ let historical_cpu = ref [] in
+ let historical_cpu_last_time = ref (Unix.gettimeofday ()) in
+ fun
+ (_, _, _, _, node_info, _, _) (* setup *)
+ (doms,
+ time, printable_time,
+ nr_pcpus, total_cpu, total_cpu_per_pcpu,
+ totals,
+ pcpu_display) (* state *) ->
+ clear ();
+
+ (* Get the screen/window size. *)
+ let lines, cols = get_size () in
+
+ (* Time. *)
+ mvaddstr top_lineno 0 (sprintf "virt-top %s - " printable_time);
+
+ (* Basic node_info. *)
+ addstr
+ (sprintf "%s %d/%dCPU %dMHz %LdMB "
+ node_info.C.model node_info.C.cpus nr_pcpus node_info.C.mhz
+ (node_info.C.memory /^ 1024L));
+ (* Save the cursor position for when we come to draw the
+ * historical CPU times (down in this function).
+ *)
+ let stdscr = stdscr () in
+ let historical_cursor = getyx stdscr in
+
(match !display_mode with
| TaskDisplay -> (*---------- Showing domains ----------*)
(* Sort domains on current sort_order. *)
| (name, Active rd) :: doms ->
if lineno < lines then (
let state = show_state rd.rd_info.D.state in
- let rd_req = show_int64_option rd.rd_block_rd_reqs in
- let wr_req = show_int64_option rd.rd_block_wr_reqs in
- let rx_bytes = show_int64_option rd.rd_net_rx_bytes in
- let tx_bytes = show_int64_option rd.rd_net_tx_bytes in
- let percent_cpu = show_percent rd.rd_percent_cpu in
+ let rd_req = Show.int64_option rd.rd_block_rd_reqs in
+ let wr_req = Show.int64_option rd.rd_block_wr_reqs in
+ let rx_bytes = Show.int64_option rd.rd_net_rx_bytes in
+ let tx_bytes = Show.int64_option rd.rd_net_tx_bytes in
+ let percent_cpu = Show.percent rd.rd_percent_cpu in
let percent_mem =
100L *^ rd.rd_info.D.memory /^ node_info.C.memory in
let percent_mem = Int64.to_float percent_mem in
- let percent_mem = show_percent percent_mem in
- let time = show_time rd.rd_info.D.cpu_time in
+ let percent_mem = Show.percent percent_mem in
+ let time = Show.time rd.rd_info.D.cpu_time in
let line = sprintf "%5d %c %s %s %s %s %s %s %s %s"
rd.rd_domid state rd_req wr_req rx_bytes tx_bytes
loop domains_lineno doms
| PCPUDisplay -> (*---------- Showing physical CPUs ----------*)
- (* Get the VCPU info and VCPU->PCPU mappings for active domains.
- * Also cull some data we don't care about.
- *)
- let doms = List.filter_map (
- function
- | (name, Active rd) ->
- (try
- let domid = rd.rd_domid in
- let maplen = C.cpumaplen nr_pcpus in
- let maxinfo = rd.rd_info.D.nr_virt_cpu in
- let nr_vcpus, vcpu_infos, cpumaps =
- D.get_vcpus rd.rd_dom maxinfo maplen in
-
- (* Got previous vcpu_infos for this domain? *)
- let prev_vcpu_infos =
- try Some (Hashtbl.find last_vcpu_info domid)
- with Not_found -> None in
- (* Update last_vcpu_info. *)
- Hashtbl.replace last_vcpu_info domid vcpu_infos;
-
- (match prev_vcpu_infos with
- | Some prev_vcpu_infos
- when Array.length prev_vcpu_infos = Array.length vcpu_infos ->
- Some (domid, name, nr_vcpus, vcpu_infos, prev_vcpu_infos,
- cpumaps, maplen)
- | _ -> None (* ignore missing / unequal length prev_vcpu_infos *)
- );
- with
- Libvirt.Virterror _ -> None(* ignore transient libvirt errs *)
- )
- | (_, Inactive) -> None (* ignore inactive doms *)
- ) doms in
- let nr_doms = List.length doms in
-
- (* Rearrange the data into a matrix. Major axis (down) is
- * pCPUs. Minor axis (right) is domains. At each node we store:
- * cpu_time (on this pCPU only, nanosecs),
- * average? (if set, then cpu_time is an average because the
- * vCPU is pinned to more than one pCPU)
- * running? (if set, we were instantaneously running on this pCPU)
- *)
- let empty_node = (0L, false, false) in
- let pcpus = Array.make_matrix nr_pcpus nr_doms empty_node in
-
- List.iteri (
- fun di (domid, name, nr_vcpus, vcpu_infos, prev_vcpu_infos,
- cpumaps, maplen) ->
- (* Which pCPUs can this dom run on? *)
- for v = 0 to nr_vcpus-1 do
- let pcpu = vcpu_infos.(v).D.cpu in (* instantaneous pCPU *)
- let nr_poss_pcpus = ref 0 in (* how many pcpus can it run on? *)
- for p = 0 to nr_pcpus-1 do
- (* vcpu v can reside on pcpu p *)
- if C.cpu_usable cpumaps maplen v p then
- incr nr_poss_pcpus
- done;
- let nr_poss_pcpus = Int64.of_int !nr_poss_pcpus in
- for p = 0 to nr_pcpus-1 do
- (* vcpu v can reside on pcpu p *)
- if C.cpu_usable cpumaps maplen v p then
- let vcpu_time_on_pcpu =
- vcpu_infos.(v).D.vcpu_time
- -^ prev_vcpu_infos.(v).D.vcpu_time in
- let vcpu_time_on_pcpu =
- vcpu_time_on_pcpu /^ nr_poss_pcpus in
- pcpus.(p).(di) <-
- (vcpu_time_on_pcpu, nr_poss_pcpus > 1L, p = pcpu)
- done
- done
- ) doms;
-
- (* Sum the CPU time used by each pCPU, for the %CPU column. *)
- let pcpus_cpu_time = Array.map (
- fun row ->
- let cpu_time = ref 0L in
- for di = 0 to Array.length row-1 do
- let t, _, _ = row.(di) in
- cpu_time := !cpu_time +^ t
- done;
- Int64.to_float !cpu_time
- ) pcpus in
+ let doms, pcpus, pcpus_cpu_time =
+ match pcpu_display with
+ | Some p -> p
+ | None -> failwith "internal error: no pcpu_display data" in
(* Display the pCPUs. *)
let dom_names =
mvaddstr (p+domains_lineno) 0 (sprintf "%4d " p);
let cpu_time = pcpus_cpu_time.(p) in (* ns used on this CPU *)
let percent_cpu = 100. *. cpu_time /. total_cpu_per_pcpu in
- addstr (show_percent percent_cpu);
- addch 32;
+ addstr (Show.percent percent_cpu);
+ addch ' ';
List.iteri (
fun di (domid, name, _, _, _, _, _) ->
else (
let t = Int64.to_float t in
let percent = 100. *. t /. total_cpu_per_pcpu in
- sprintf "%s%c%c " (show_percent percent)
+ sprintf "%s%c%c " (Show.percent percent)
(if is_average then '=' else ' ')
(if is_running then '#' else ' ')
) in
(fun (_, { rd_domid = id1 }, _, { rd_domid = id2 }) ->
compare id1 id2)
| Processor | Memory | Time | BlockRdRq | BlockWrRq
- (* fallthrough to RXBY comparison. *)
+ (* fallthrough to RXBY comparison. *)
| NetRX ->
(fun ({ D.rx_bytes = b1 }, _, { D.rx_bytes = b2 }, _) ->
compare b2 b1)
(pad cols " ID S RXBY TXBY RXPK TXPK DOMAIN INTERFACE");
attroff A.reverse;
- (* Print domains and devices. *)
+ (* Print domains and devices. *)
let rec loop lineno = function
| [] -> ()
| (dev, name, rd, stats) :: devs ->
let state = show_state rd.rd_info.D.state in
let rx_bytes =
if stats.D.rx_bytes >= 0L
- then show_int64 stats.D.rx_bytes
+ then Show.int64 stats.D.rx_bytes
else " " in
let tx_bytes =
if stats.D.tx_bytes >= 0L
- then show_int64 stats.D.tx_bytes
+ then Show.int64 stats.D.tx_bytes
else " " in
let rx_packets =
if stats.D.rx_packets >= 0L
- then show_int64 stats.D.rx_packets
+ then Show.int64 stats.D.rx_packets
else " " in
let tx_packets =
if stats.D.tx_packets >= 0L
- then show_int64 stats.D.tx_packets
+ then Show.int64 stats.D.tx_packets
else " " in
let line = sprintf "%5d %c %s %s %s %s %-12s %s"
(fun (_, { rd_domid = id1 }, _, { rd_domid = id2 }) ->
compare id1 id2)
| Processor | Memory | Time | NetRX | NetTX
- (* fallthrough to RDRQ comparison. *)
+ (* fallthrough to RDRQ comparison. *)
| BlockRdRq ->
(fun ({ D.rd_req = b1 }, _, { D.rd_req = b2 }, _) ->
compare b2 b1)
(pad cols " ID S RDBY WRBY RDRQ WRRQ DOMAIN DEVICE");
attroff A.reverse;
- (* Print domains and devices. *)
+ (* Print domains and devices. *)
let rec loop lineno = function
| [] -> ()
| (dev, name, rd, stats) :: devs ->
let state = show_state rd.rd_info.D.state in
let rd_bytes =
if stats.D.rd_bytes >= 0L
- then show_int64 stats.D.rd_bytes
+ then Show.int64 stats.D.rd_bytes
else " " in
let wr_bytes =
if stats.D.wr_bytes >= 0L
- then show_int64 stats.D.wr_bytes
+ then Show.int64 stats.D.wr_bytes
else " " in
let rd_req =
if stats.D.rd_req >= 0L
- then show_int64 stats.D.rd_req
+ then Show.int64 stats.D.rd_req
else " " in
let wr_req =
if stats.D.wr_req >= 0L
- then show_int64 stats.D.wr_req
+ then Show.int64 stats.D.wr_req
else " " in
let line = sprintf "%5d %c %s %s %s %s %-12s %s"
)
in
loop domains_lineno devs
+ ); (* end of display_mode conditional section *)
+
+ let (count, running, blocked, paused, shutdown, shutoff,
+ crashed, active, inactive,
+ total_cpu_time, total_memory, total_domU_memory) = totals in
+
+ mvaddstr summary_lineno 0
+ (sprintf
+ (f_"%d domains, %d active, %d running, %d sleeping, %d paused, %d inactive D:%d O:%d X:%d")
+ count active running blocked paused inactive shutdown shutoff crashed);
+
+ (* Total %CPU used, and memory summary. *)
+ let percent_cpu = 100. *. total_cpu_time /. total_cpu in
+ mvaddstr (summary_lineno+1) 0
+ (sprintf
+ (f_"CPU: %2.1f%% Mem: %Ld MB (%Ld MB by guests)")
+ percent_cpu (total_memory /^ 1024L) (total_domU_memory /^ 1024L));
+
+ (* Time to grab another historical %CPU for the list? *)
+ if time >= !historical_cpu_last_time +. float !historical_cpu_delay
+ then (
+ historical_cpu := percent_cpu :: List.take 10 !historical_cpu;
+ historical_cpu_last_time := time
);
- (* Calculate and print totals. *)
+ (* Display historical CPU time. *)
let () =
- let totals = List.fold_left (
- fun (count, running, blocked, paused, shutdown, shutoff,
- crashed, active, inactive,
- total_cpu_time, total_memory, total_domU_memory) ->
- function
- | (name, Active rd) ->
- let test state orig =
- if rd.rd_info.D.state = state then orig+1 else orig
- in
- let running = test D.InfoRunning running in
- let blocked = test D.InfoBlocked blocked in
- let paused = test D.InfoPaused paused in
- let shutdown = test D.InfoShutdown shutdown in
- let shutoff = test D.InfoShutoff shutoff in
- let crashed = test D.InfoCrashed crashed in
-
- let total_cpu_time = total_cpu_time +. rd.rd_cpu_time in
- let total_memory = total_memory +^ rd.rd_info.D.memory in
- let total_domU_memory = total_domU_memory +^
- if rd.rd_domid > 0 then rd.rd_info.D.memory else 0L in
-
- (count+1, running, blocked, paused, shutdown, shutoff,
- crashed, active+1, inactive,
- total_cpu_time, total_memory, total_domU_memory)
-
- | (name, Inactive) -> (* inactive domain *)
- (count+1, running, blocked, paused, shutdown, shutoff,
- crashed, active, inactive+1,
- total_cpu_time, total_memory, total_domU_memory)
- ) (0,0,0,0,0,0,0,0,0, 0.,0L,0L) doms in
-
- let (count, running, blocked, paused, shutdown, shutoff,
- crashed, active, inactive,
- total_cpu_time, total_memory, total_domU_memory) = totals in
-
- mvaddstr summary_lineno 0
- (sprintf "%d domains, %d active, %d running, %d sleeping, %d paused, %d inactive D:%d O:%d X:%d"
- count active running blocked paused inactive shutdown shutoff
- crashed);
-
- (* Total %CPU used, and memory summary. *)
- let percent_cpu = 100. *. total_cpu_time /. total_cpu in
- mvaddstr (summary_lineno+1) 0
- (sprintf "CPU: %2.1f%% Mem: %Ld MB (%Ld MB by guests)"
- percent_cpu (total_memory /^ 1024L) (total_domU_memory /^ 1024L));
-
- (* Time to grab another historical %CPU for the list? *)
- if time >= !historical_cpu_last_time +. float !historical_cpu_delay
- then (
- historical_cpu := percent_cpu :: List.take 10 !historical_cpu;
- historical_cpu_last_time := time
- );
-
- (* Display historical CPU time. *)
- let () =
- let x, y = historical_cursor in (* Yes, it's a bug in ocaml-curses *)
- let maxwidth = cols - x in
- let line =
- String.concat " "
- (List.map (sprintf "%2.1f%%") !historical_cpu) in
- let line = pad maxwidth line in
- mvaddstr y x line;
- () in
-
- (* Write summary data to CSV file. See also write_csv_header (). *)
- if !csv_enabled then (
- (!csv_write) [
- hostname; printable_time; node_info.C.model; string_of_int nr_pcpus;
- string_of_int count; string_of_int running; string_of_int blocked;
- string_of_int paused; string_of_int shutdown; string_of_int shutoff;
- string_of_int crashed; string_of_int active; string_of_int inactive;
- sprintf "%2.1f" percent_cpu;
- Int64.to_string total_memory; Int64.to_string total_domU_memory;
- Int64.to_string (Int64.of_float total_cpu_time)
- ]
- );
-
- ()
- in
-
- (* Update last_info, last_time. *)
- last_time := time;
- Hashtbl.clear last_info;
- List.iter (
- function
- | (_, Active rd) ->
- let info = rd.rd_info, rd.rd_block_stats, rd.rd_interface_stats in
- Hashtbl.add last_info rd.rd_domid info
- | _ -> ()
- ) doms;
+ let y, x = historical_cursor in
+ let maxwidth = cols - x in
+ let line =
+ String.concat " "
+ (List.map (sprintf "%2.1f%%") !historical_cpu) in
+ let line = pad maxwidth line in
+ mvaddstr y x line;
+ () in
+
+ move message_lineno 0; (* Park cursor in message area, as with top. *)
+ refresh () (* Refresh the display. *)
- move message_lineno 0 (* Park cursor in message area, as with top. *)
- in
+(* Write CSV header row. *)
+let write_csv_header () =
+ (!csv_write) (
+ [ "Hostname"; "Time"; "Arch"; "Physical CPUs";
+ "Count"; "Running"; "Blocked"; "Paused"; "Shutdown";
+ "Shutoff"; "Crashed"; "Active"; "Inactive";
+ "%CPU";
+ "Total hardware memory (KB)";
+ "Total memory (KB)"; "Total guest memory (KB)";
+ "Total CPU time (ns)" ] @
+ (* These fields are repeated for each domain: *)
+ [ "Domain ID"; "Domain name"; ] @
+ (if !csv_cpu then [ "CPU (ns)"; "%CPU"; ] else []) @
+ (if !csv_block then [ "Block RDRQ"; "Block WRRQ"; ] else []) @
+ (if !csv_net then [ "Net RXBY"; "Net TXBY" ] else [])
+ )
- let clear_pcpu_display_data () =
- (* Clear out vcpu_info used by PCPUDisplay
- * display_mode when we switch back to TaskDisplay mode.
- *)
- Hashtbl.clear last_vcpu_info
- in
+(* Write summary data to CSV file. *)
+let append_csv
+ (_, _, _, _, node_info, hostname, _) (* setup *)
+ (doms,
+ _, printable_time,
+ nr_pcpus, total_cpu, _,
+ totals,
+ _) (* state *) =
+
+ (* The totals / summary fields. *)
+ let (count, running, blocked, paused, shutdown, shutoff,
+ crashed, active, inactive,
+ total_cpu_time, total_memory, total_domU_memory) = totals in
+
+ let percent_cpu = 100. *. total_cpu_time /. total_cpu in
+
+ let summary_fields = [
+ hostname; printable_time; node_info.C.model; string_of_int nr_pcpus;
+ string_of_int count; string_of_int running; string_of_int blocked;
+ string_of_int paused; string_of_int shutdown; string_of_int shutoff;
+ string_of_int crashed; string_of_int active; string_of_int inactive;
+ sprintf "%2.1f" percent_cpu;
+ Int64.to_string node_info.C.memory;
+ Int64.to_string total_memory; Int64.to_string total_domU_memory;
+ Int64.to_string (Int64.of_float total_cpu_time)
+ ] in
- redraw, clear_pcpu_display_data
+ (* The domains.
+ *
+ * Sort them by ID so that the list of relatively stable. Ignore
+ * inactive domains.
+ *)
+ let doms = List.filter_map (
+ function
+ | _, Inactive -> None (* Ignore inactive domains. *)
+ | name, Active rd -> Some (name, rd)
+ ) doms in
+ let cmp (_, { rd_domid = rd_domid1 }) (_, { rd_domid = rd_domid2 }) =
+ compare rd_domid1 rd_domid2
+ in
+ let doms = List.sort ~cmp doms in
+
+ let string_of_int64_option = Option.map_default Int64.to_string "" in
+
+ let domain_fields = List.map (
+ fun (domname, rd) ->
+ [ string_of_int rd.rd_domid; domname ] @
+ (if !csv_cpu then [
+ string_of_float rd.rd_cpu_time; string_of_float rd.rd_percent_cpu
+ ] else []) @
+ (if !csv_block then [
+ string_of_int64_option rd.rd_block_rd_reqs;
+ string_of_int64_option rd.rd_block_wr_reqs;
+ ] else []) @
+ (if !csv_net then [
+ string_of_int64_option rd.rd_net_rx_bytes;
+ string_of_int64_option rd.rd_net_tx_bytes;
+ ] else [])
+ ) doms in
+ let domain_fields = List.flatten domain_fields in
+
+ (!csv_write) (summary_fields @ domain_fields)
(* Main loop. *)
-let rec main_loop state =
- if !csv_enabled then write_csv_header ();
+let rec main_loop ((_, batch_mode, script_mode, csv_enabled, _, _, _)
+ as setup) =
+ if csv_enabled then write_csv_header ();
while not !quit do
- redraw state;
- refresh ();
+ let state = collect setup in (* Collect stats. *)
+ if not script_mode then redraw setup state; (* Redraw display. *)
+ if csv_enabled then append_csv setup state; (* Update CSV file. *)
(* Clear up unused virDomainPtr objects. *)
Gc.compact ();
- if not !batch_mode then
- get_key_press state
- else (* Batch mode - just sleep, ignore keys. *)
- Unix.sleep (!delay / 1000);
+ (* Get next key. This does the sleep. *)
+ if not batch_mode && not script_mode then
+ get_key_press setup;
(* Max iterations? *)
if !iterations >= 0 then (
decr iterations;
if !iterations = 0 then quit := true
);
+
+ (* End time? *)
+ (match !end_time with
+ | None -> ()
+ | Some end_time ->
+ let (_, time, _, _, _, _, _, _) = state in
+ let delay_secs = float !delay /. 1000. in
+ if end_time <= time +. delay_secs then quit := true
+ );
+
+ (* Batch mode or script mode. We didn't call get_key_press above, so
+ * we didn't sleep. Sleep now, unless we are about to quit.
+ *)
+ if batch_mode || script_mode then
+ if not !quit then
+ usleep !delay;
done
-and get_key_press state =
+and get_key_press setup =
(* Read the next key, waiting up to !delay milliseconds. *)
timeout !delay;
let k = getch () in
if k >= 0 && k <> 32 (* ' ' *) && k <> 12 (* ^L *) && k <> Key.resize
then (
if k = Char.code 'q' then quit := true
- else if k = Char.code 'h' then show_help state
+ else if k = Char.code 'h' then show_help setup
else if k = Char.code 's' || k = Char.code 'd' then change_delay ()
else if k = Char.code 'M' then sort_order := Memory
else if k = Char.code 'P' then sort_order := Processor
else if k = Char.code '1' then toggle_pcpu_display ()
else if k = Char.code '2' then toggle_net_display ()
else if k = Char.code '3' then toggle_block_display ()
+ else if k = Char.code 'W' then write_init_file ()
else unknown_command k
)
and change_delay () =
- print_msg (sprintf "Change delay from %.1f to: " (float !delay /. 1000.));
+ print_msg
+ (sprintf (f_"Change delay from %.1f to: ") (float !delay /. 1000.));
let str = get_string 16 in
(* Try to parse the number. *)
let error =
try
let newdelay = float_of_string str in
if newdelay <= 0. then (
- print_msg "Delay must be > 0"; true
+ print_msg (s_"Delay must be > 0"); true
) else (
delay := int_of_float (newdelay *. 1000.); false
)
with
Failure "float_of_string" ->
- print_msg "Not a valid number"; true in
+ print_msg (s_"Not a valid number"); true in
+ refresh ();
sleep (if error then 2 else 1)
and change_sort_order () =
clear ();
let lines, cols = get_size () in
- mvaddstr top_lineno 0 "Set sort order for main display";
- mvaddstr summary_lineno 0 "Type key or use up and down cursor keys.";
+ mvaddstr top_lineno 0 (s_"Set sort order for main display");
+ mvaddstr summary_lineno 0 (s_"Type key or use up and down cursor keys.");
attron A.reverse;
mvaddstr header_lineno 0 (pad cols "KEY Sort field");
sort_order := new_order;
print_msg (sprintf "Sort order changed to: %s"
(printable_sort_order new_order));
- if not loop then sleep 1
+ if not loop then (
+ refresh ();
+ sleep 1
+ )
);
if loop then change_sort_order ()
| TaskDisplay | NetDisplay -> BlockDisplay
| BlockDisplay -> TaskDisplay
-and show_help (_, _, _, hostname,
+(* Write an init file. *)
+and write_init_file () =
+ match !init_file with
+ | NoInitFile -> () (* Do nothing if --no-init-file *)
+ | DefaultInitFile ->
+ let home = try Sys.getenv "HOME" with Not_found -> "/" in
+ let filename = home // rcfile in
+ _write_init_file filename
+ | InitFile filename ->
+ _write_init_file filename
+
+and _write_init_file filename =
+ try
+ (* Create the new file as filename.new. *)
+ let chan = open_out (filename ^ ".new") in
+
+ let time = Unix.gettimeofday () in
+ let tm = Unix.localtime time in
+ let printable_date_time =
+ sprintf "%04d-%02d-%02d %02d:%02d:%02d"
+ (tm.Unix.tm_year + 1900) (tm.Unix.tm_mon+1) tm.Unix.tm_mday
+ tm.Unix.tm_hour tm.Unix.tm_min tm.Unix.tm_sec in
+ let username =
+ try
+ let uid = Unix.geteuid () in
+ (Unix.getpwuid uid).Unix.pw_name
+ with
+ Not_found -> "unknown" in
+
+ let fp = fprintf in
+ let nl () = fp chan "\n" in
+ let () = fp chan (f_"# %s virt-top configuration file\n") rcfile in
+ let () = fp chan (f_"# generated on %s by %s\n") printable_date_time username in
+ nl ();
+ fp chan "display %s\n" (cli_of_display !display_mode);
+ fp chan "delay %g\n" (float !delay /. 1000.);
+ fp chan "hist-cpu %d\n" !historical_cpu_delay;
+ if !iterations <> -1 then fp chan "iterations %d\n" !iterations;
+ fp chan "sort %s\n" (cli_of_sort_order !sort_order);
+ (match !uri with
+ | None -> ()
+ | Some uri -> fp chan "connect %s\n" uri
+ );
+ if !batch_mode = true then fp chan "batch true\n";
+ if !secure_mode = true then fp chan "secure true\n";
+ nl ();
+ output_string chan (s_"# To send debug and error messages to a file, uncomment next line\n");
+ fp chan "#debug virt-top.out\n";
+ nl ();
+ output_string chan (s_"# Enable CSV output to the named file\n");
+ fp chan "#csv virt-top.csv\n";
+ nl ();
+ output_string chan (s_"# To protect this file from being overwritten, uncomment next line\n");
+ fp chan "#overwrite-init-file false\n";
+
+ close_out chan;
+
+ (* If the file exists, rename it as filename.old. *)
+ (try Unix.rename filename (filename ^ ".old")
+ with Unix.Unix_error _ -> ());
+
+ (* Rename filename.new to filename. *)
+ Unix.rename (filename ^ ".new") filename;
+
+ print_msg (sprintf (f_"Wrote settings to %s") filename);
+ refresh ();
+ sleep 2
+ with
+ | Sys_error err ->
+ print_msg (s_"Error" ^ ": " ^ err);
+ refresh (); sleep 2
+ | Unix.Unix_error (err, fn, str) ->
+ print_msg (s_"Error" ^ ": " ^
+ (Unix.error_message err) ^ " " ^ fn ^ " " ^ str);
+ refresh ();
+ sleep 2
+
+and show_help (_, _, _, _, _, hostname,
(libvirt_major, libvirt_minor, libvirt_release)) =
clear ();
(* Banner at the top of the screen. *)
let banner =
- sprintf "virt-top %s (libvirt %d.%d.%d) by Red Hat"
- Libvirt_version.version libvirt_major libvirt_minor libvirt_release in
+ sprintf (f_"virt-top %s ocaml-libvirt %s libvirt %d.%d.%d by Red Hat")
+ Virt_top_version.version
+ Libvirt_version.version
+ libvirt_major libvirt_minor libvirt_release in
let banner = pad cols banner in
attron A.reverse;
mvaddstr 0 0 banner;
(* Status. *)
mvaddstr 1 0
- (sprintf "Delay: %.1f secs; Batch: %s; Secure: %s; Sort: %s"
+ (sprintf
+ (f_"Delay: %.1f secs; Batch: %s; Secure: %s; Sort: %s")
(float !delay /. 1000.)
- (if !batch_mode then "On" else "Off")
- (if !secure_mode then "On" else "Off")
+ (if !batch_mode then s_"On" else s_"Off")
+ (if !secure_mode then s_"On" else s_"Off")
(printable_sort_order !sort_order));
mvaddstr 2 0
- (sprintf "Connect: %s; Hostname: %s"
- (match !uri with None -> "default" | Some s -> s)
+ (sprintf
+ (f_"Connect: %s; Hostname: %s")
+ (match !uri with None -> s_"default" | Some s -> s)
hostname);
(* Misc keys on left. *)
- let banner = pad 38 "MAIN KEYS" in
+ let banner = pad 38 (s_"MAIN KEYS") in
attron A.reverse;
mvaddstr header_lineno 1 banner;
attroff A.reverse;
let key keys description =
let lineno = get_lineno () in
move lineno 1; attron A.bold; addstr keys; attroff A.bold;
- move lineno 10; addstr description; ()
+ move lineno 10; addstr description
in
- key "space ^L" "Update display";
- key "q" "Quit";
- key "d s" "Set update interval";
- key "h" "Help";
+ key "space ^L" (s_"Update display");
+ key "q" (s_"Quit");
+ key "d s" (s_"Set update interval");
+ key "h" (s_"Help");
(* Sort order. *)
ignore (get_lineno ());
- let banner = pad 38 "SORTING" in
+ let banner = pad 38 (s_"SORTING") in
attron A.reverse;
mvaddstr (get_lineno ()) 1 banner;
attroff A.reverse;
- key "P" "Sort by %CPU";
- key "M" "Sort by %MEM";
- key "T" "Sort by TIME";
- key "N" "Sort by ID";
- key "F" "Select sort field";
+ key "P" (s_"Sort by %CPU");
+ key "M" (s_"Sort by %MEM");
+ key "T" (s_"Sort by TIME");
+ key "N" (s_"Sort by ID");
+ key "F" (s_"Select sort field");
(* Display modes on right. *)
- let banner = pad 39 "DISPLAY MODES" in
+ let banner = pad 39 (s_"DISPLAY MODES") in
attron A.reverse;
mvaddstr header_lineno 40 banner;
attroff A.reverse;
let key keys description =
let lineno = get_lineno () in
move lineno 40; attron A.bold; addstr keys; attroff A.bold;
- move lineno 49; addstr description; ()
+ move lineno 49; addstr description
in
- key "0" "Domains display";
- key "1" "Toggle physical CPUs";
- key "2" "Toggle network interfaces";
- key "3" "Toggle block devices";
+ key "0" (s_"Domains display");
+ key "1" (s_"Toggle physical CPUs");
+ key "2" (s_"Toggle network interfaces");
+ key "3" (s_"Toggle block devices");
(* Update screen and wait for key press. *)
mvaddstr (lines-1) 0
- "More help in virt-top(1) man page. Press any key to return.";
+ (s_"More help in virt-top(1) man page. Press any key to return.");
refresh ();
ignore (getch ())
and unknown_command k =
- print_msg "Unknown command - try 'h' for help";
+ print_msg (s_"Unknown command - try 'h' for help");
+ refresh ();
sleep 1
git.annexia.org / virt-top.git / blobdiff