(* 'top'-like tool for libvirt domains.
- * $Id: virt_top.ml,v 1.5 2007/08/30 13:52:40 rjones Exp $
- *)
+ (C) Copyright 2007 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
fun _ -> ()
)
-(* Int64 operators for convenience. *)
-let (+^) = Int64.add
-let (-^) = Int64.sub
-let ( *^ ) = Int64.mul
-let (/^) = Int64.div
-
(* Sort order. *)
type sort_order =
| DomainID | DomainName | Processor | Memory | Time
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. *)
"-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";
+ "--no-csv-cpu", Arg.Clear csv_cpu, " Disable CPU stats in CSV";
+ "--no-csv-block", Arg.Clear csv_block, " Disable block device stats in CSV";
+ "--no-csv-net", Arg.Clear csv_net, " Disable net stats in CSV";
"-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";
| _, "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
*)
(conn,
!batch_mode, !script_mode, !csv_enabled, (* immutable modes *)
- 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
+ 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
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 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" ]
-
(* Intermediate "domain + stats" structure that we use to collect
* everything we know about a domain within the collect function.
*)
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
(* Get the screen/window size. *)
let lines, cols = get_size () in
+ (* Time. *)
+ mvaddstr top_lineno 0 ("virt-top " ^ 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
| (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
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);
+ addstr (Show.percent percent_cpu);
addch 32;
List.iteri (
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
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"
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"
refresh (); (* Refresh the display. *)
()
-(* Write summary data to CSV file. See also write_csv_header (). *)
+(* 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)" ] @
+ (* 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 [])
+ )
+
+(* 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
- (!csv_write) [
+ 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;
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
+
+ (* 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 ((_, batch_mode, script_mode, csv_enabled, _, _, _)
git.annexia.org / virt-top.git / blobdiff