Useful nbdkit filters: the delay filter

nbdkit --filter=delay [...] rdelay=1

nbdkit --filter=delay [...] rdelay=100ms wdelay=50ms

• Injects delays into requests.
• Delays can be specified in seconds or milliseconds.
• rdelay: read operations
• wdelay: write or zero operations
• Requests handled in parallel are delayed in parallel, as expected.