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2025-11-19 - 15:11
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: reduced 
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100 highest latencies:
System rack3slot7.osadl.org (updated Wed Nov 19, 2025 12:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3140120ksoftirqd/031589-21kworker/0:006:53:120
14991310watchdog/02996-21runrttasks07:35:520
14991290watchdog/04164-21latency_hist12:02:560
14991250watchdog/032750-21cpuspeed08:18:360
14991240watchdog/011322-21expr08:53:400
14991200watchdog/025807-21sort11:27:560
14991190watchdog/07843-21nfs_client08:43:280
14991190watchdog/016585-21latency_hist10:57:560
14991180watchdog/04487-21ntpq10:18:160
14991180watchdog/032126-21mailstats11:48:080
14991180watchdog/015012-21df07:23:160
14991180watchdog/014967-21latency_hist09:07:560
14991180watchdog/010473-21sendmail_mailtr12:23:080
14991170watchdog/028995-21munin-node11:38:240
14991170watchdog/011028-21chrt10:38:280
14991160watchdog/06973-21timerandwakeup06:58:000
14991140watchdog/02996-21runrttasks09:29:160
14991130watchdog/02996-21runrttasks10:34:240
14991130watchdog/020246-21nfs_client11:08:280
14991120watchdog/04684-21unixbench_singl08:33:200
14991120watchdog/03253-21nfs_client08:28:280
14991100watchdog/018723-21nfs_client11:03:280
14991100watchdog/018121-21latency_hist07:32:560
14991090watchdog/024645-21cut09:38:200
14991080watchdog/09946-21chrt08:49:360
14991080watchdog/09206-21df_inode12:18:200
14991080watchdog/031842-21chrt08:17:040
14991080watchdog/011693-21latency_hist07:12:560
14991070watchdog/027258-21runrttasks08:02:280
14991070watchdog/026805-21runrttasks09:43:440
14991070watchdog/015803-21seq09:08:360
14991050watchdog/08422-21runrttasks10:29:480
14991050watchdog/030748-21aten2.4_r3power09:58:160
14991050watchdog/01815-21aten2.4_r3power10:08:320
2435501040irq/11-eth02996-21runrttasks10:55:170
14991040watchdog/02996-21runrttasks10:25:520
14991030watchdog/030538-21mailstats11:43:080
14991030watchdog/02996-21runrttasks09:00:000
14991030watchdog/023009-21munin-node09:33:160
838501020irq/14-ide021133-21cron09:27:550
14991010watchdog/019573-21seq09:22:440
243550990irq/11-eth06398-21nfs_client12:08:290
243550980irq/11-eth05803-21latency_hist08:37:570
243550980irq/11-eth02996-21runrttasks07:46:320
243550970irq/11-eth028856-21sh08:07:540
243550960irq/11-eth018079-21latency_hist09:17:550
243550950irq/11-eth013294-21munin-node07:18:400
243550950irq/11-eth012014-21sendmail_mailtr10:43:070
243550910irq/11-eth014291-21interrupts10:48:390
243550900irq/11-eth029808-21missed_timers09:53:400
243550890irq/11-eth02996-21runrttasks11:18:380
243550890irq/11-eth01607-21aten2.4_r3power08:23:230
243550870irq/11-eth022826-21sendmail_mailtr07:48:080
6841988412cyclictest25876-21latency_hist11:27:570
243550840irq/11-eth02996-21runrttasks10:06:540
6841988212cyclictest25054-21munin-node07:53:340
6841988113cyclictest1160-21munin-node11:53:380
1499800watchdog/027970-21expr11:33:280
6841987912cyclictest2996-21runrttasks10:16:340
83850780irq/14-ide010308-21df07:08:140
6841987813cyclictest29461-21nfs_client08:08:260
6841987812cyclictest7393-21munin-node12:13:120
243550780irq/11-eth04890-21grep12:03:310
6841987713cyclictest21708-21aten2.4_r3power11:13:220
6841987712cyclictest20204-21nfs_client07:38:250
6841987613cyclictest2996-21runrttasks09:51:540
1499750watchdog/08660-21mailstats07:03:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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