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2022-07-03 - 07:57

x86 VIA Samuel 2 @533 MHz, Linux 3.18.9-rt4 (Profile)

Latency plot of system in rack #3, slot #7
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -n -a0 -t1 -p98 -i200 -h1000 -q
Total number of samples: 100 million
Resolution of latency scale: reduced 
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of all highest latencies:
System rack3slot7.osadl.org (updated Sun Jul 03, 2022 00:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3140150ksoftirqd/029021-21kworker/0:218:56:330
14991230watchdog/017200-21ntpq21:41:380
14991210watchdog/03557-21runrttasks22:33:500
14991190watchdog/011595-21seq19:34:060
14991170watchdog/030215-21runrttasks22:25:540
14991160watchdog/03557-21runrttasks20:19:100
14991140watchdog/03557-21runrttasks23:22:100
14991140watchdog/03557-21runrttasks22:12:540
14991130watchdog/03557-21runrttasks21:48:340
14991130watchdog/021169-21cut20:06:380
14991120watchdog/06106-21timerandwakeup22:51:500
14991120watchdog/03557-21runrttasks21:25:220
14991070watchdog/049602sleep022:48:180
14991070watchdog/022717-21expr20:11:380
14991070watchdog/011130-21runrttasks23:09:540
14991060watchdog/029809-21latency_hist20:36:180
14991050watchdog/023819-21iostat23:51:420
14991050watchdog/021033-21timerandwakeup23:41:500
14991040watchdog/03557-21runrttasks20:45:180
14991030watchdog/03557-21runrttasks19:36:540
14991020watchdog/03557-21runrttasks20:52:140
14991010watchdog/0142852sleep023:21:140
14991000watchdog/07220-21cpu22:56:380
14991000watchdog/06667-21ls19:16:500
14991000watchdog/014628-21latency21:31:500
1499990watchdog/05890-21munin-run19:16:180
1499990watchdog/022055-21df23:46:380
1499980watchdog/03097-21sed22:41:500
1499950watchdog/015450-21munin-node21:36:300
1499940watchdog/020928-21runrttasks21:53:100
1499940watchdog/019217-21seq20:00:260
1499930watchdog/027356-21munin-node20:26:420
1499930watchdog/016336-21munin-run19:51:180
1499910watchdog/019503-21aten_r3power_cu20:01:300
1499900watchdog/03228-21ntp_offset19:06:380
1499880watchdog/016690-21aten_r3power_po23:26:540
1499870watchdog/022521-21runrttasks21:59:020
1713728512sleep017191-21missed_timers19:51:520
1231988513cyclictest430-21munin-node20:46:500
1499840watchdog/03557-21runrttasks23:11:380
1499840watchdog/030711-21chrt00:16:020
1499840watchdog/0272712sleep000:02:220
1499840watchdog/025041-21interrupts22:06:500
1499840watchdog/013089-21netstat21:26:500
1231988413cyclictest1859-21unixbench_singl19:01:410
1499830watchdog/026815-21latency_hist20:26:180
1499830watchdog/014114-21cat19:41:500
1231988337cyclictest9772-21df_inode21:16:400
1231988325cyclictest3557-21runrttasks22:02:450
1231988313cyclictest27653-21aten_r3power_vo22:16:380
1499820watchdog/05796-21ls21:01:540
1499820watchdog/03557-21runrttasks00:31:180
1499820watchdog/032583-21aten_r3power_vo00:21:380
1499820watchdog/0315142sleep022:29:180
1499820watchdog/02324-21latency_hist22:41:180
1231988213cyclictest8439-21munin-node23:01:320
1231988212cyclictest30398-21nfs_client20:36:440
1499810watchdog/07386-21chrt21:07:340
1499810watchdog/018459-21seq23:33:380
1231988113cyclictest19633-21missed_timers23:36:520
1231988113cyclictest1227-21munin-node00:16:280
1499800watchdog/08413-21unixbench_singl21:11:540
1499800watchdog/036072sleep020:56:340
1499800watchdog/025982-21runrttasks23:59:060
1499800watchdog/010270-21runrttasks19:30:380
123198809cyclictest28083-21uptime00:06:380
1499780watchdog/03241-21syslogd19:26:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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