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2024-05-26 - 13:56
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 50 highest latencies:
System rackcslot2.osadl.org (updated Sun May 26, 2024 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1986321140,0sleep10-21swapper/123:15:401
2906927059,7sleep10-21swapper/118:59:481
3040826857,7sleep00-21swapper/019:00:230
229782670,1sleep10-21swapper/121:58:161
31007991716,1cyclictest22197-21ntpq00:00:121
31007991710,6cyclictest19506-21ssh21:53:501
31006991710,7cyclictest0-21swapper/019:40:110
153972170,0sleep10-21swapper/122:29:511
31007991615,1cyclictest24402-21ssh21:19:271
31007991615,1cyclictest2105-21ssh21:30:491
31007991615,1cyclictest0-21swapper/121:38:361
31007991615,0cyclictest19392-21ssh21:12:241
31007991614,1cyclictest734-21ssh22:51:511
31006991616,0cyclictest31393-21ssh23:30:110
31006991615,1cyclictest7415-21ssh23:00:090
31006991615,1cyclictest22248-21ssh22:38:320
31006991615,0cyclictest17066-21sh23:54:390
31006991610,6cyclictest0-21swapper/023:36:370
31006991610,5cyclictest0-21swapper/020:11:070
31007991515,0cyclictest28999-21ssh22:46:141
31007991515,0cyclictest27702-21ssh00:08:231
31007991515,0cyclictest25475-21ssh22:42:081
31007991515,0cyclictest24-21ksoftirqd/119:59:441
31007991515,0cyclictest0-21swapper/119:36:291
31007991515,0cyclictest0-21swapper/119:09:251
31007991514,1cyclictest30899-21ssh00:11:441
31007991514,0cyclictest28282-21grep22:04:591
31007991514,0cyclictest13293-21ssh23:07:541
31007991512,2cyclictest31524-21apache222:23:571
31007991511,1cyclictest91rcu_preempt23:46:451
31007991510,5cyclictest0-21swapper/123:50:111
31007991510,5cyclictest0-21swapper/122:14:211
31007991510,5cyclictest0-21swapper/120:08:031
31007991510,4cyclictest0-21swapper/122:55:211
31007991510,0cyclictest0-21swapper/123:55:451
31007991510,0cyclictest0-21swapper/123:31:321
31006991515,0cyclictest7168-21ssh00:22:570
31006991515,0cyclictest12447-21ssh00:29:540
31006991515,0cyclictest0-21swapper/022:40:490
31006991515,0cyclictest0-21swapper/019:23:010
31006991513,1cyclictest15120-21ls23:10:040
31006991512,2cyclictest31545-21apache221:12:370
31006991512,2cyclictest0-21swapper/021:54:230
31006991511,3cyclictest17977-21/usr/sbin/munin19:55:100
31006991510,5cyclictest0-21swapper/020:02:070
31006991510,5cyclictest0-21swapper/019:36:130
31006991510,5cyclictest0-21swapper/000:16:220
31006991510,4cyclictest26856-21kworker/u4:200:05:340
31006991510,0cyclictest0-21swapper/023:17:140
31007991414,0cyclictest0-21swapper/121:39:561
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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