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2023-01-30 - 06:45

x86 Intel Core i3-2100T @2500 MHz, Linux 4.14.28-rt23 (Profile)

Latency plot of system in rack #0, slot #0
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 --smi -q
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 rack0slot0.osadl.org (updated Mon Jan 30, 2023 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
512921440,1sleep233-21ksoftirqd/222:25:182
2610021310,1sleep1768-21gdbus00:20:131
1996021250,2sleep61616999cyclictest22:17:296
2310421190,1sleep623103-21sshd22:35:336
1631221190,4sleep71617699cyclictest22:49:447
123642950,0sleep10-21swapper/121:50:481
29862930,1sleep42911-21sshd22:33:394
243022930,0sleep50-21swapper/500:09:195
243022930,0sleep50-21swapper/500:09:195
240282910,27sleep313350irq/24-ahci[00023:53:373
236302890,1sleep41013-21runrttasks21:23:414
109812880,1sleep30-21swapper/323:21:553
51082870,1sleep10-21swapper/123:57:431
54242860,1sleep00-21swapper/000:20:360
47002860,0sleep60-21swapper/622:14:336
80092850,0sleep10-21swapper/123:09:501
43322850,1sleep70-21swapper/721:50:297
91672840,1sleep79164-21sshd21:13:347
237712830,1sleep3401rcuc/300:18:543
9432820,0sleep3401rcuc/323:26:193
269412820,1sleep5581rcuc/522:57:205
248922820,1sleep60-21swapper/600:23:466
222982820,1sleep0121rcuc/023:35:300
183182820,1sleep718321-21bash23:42:347
284512810,1sleep60-21swapper/600:29:556
214232810,1sleep60-21swapper/621:52:206
136492810,1sleep6671rcuc/621:48:276
118062810,0sleep00-21swapper/021:28:010
276452800,1sleep0683-21systemd-logind22:53:470
231792800,0sleep30-21swapper/323:37:583
159432800,0sleep50-21swapper/521:44:575
140372800,0sleep60-21swapper/600:05:196
140372800,0sleep60-21swapper/600:05:186
64282790,0sleep20-21swapper/222:43:222
296412790,0sleep40-21swapper/422:20:154
264172790,0sleep5591ktimersoftd/522:20:085
175122790,0sleep40-21swapper/423:41:204
134992790,0sleep40-21swapper/400:37:474
90712780,0sleep20-21swapper/200:07:312
90712780,0sleep20-21swapper/200:07:302
300332780,0sleep50-21swapper/523:21:245
25592780,0sleep42543-21cp21:55:154
25592780,0sleep42543-21cp21:55:144
151642780,0sleep60-21swapper/623:56:536
292032770,0sleep70-21swapper/722:27:257
16712770,1sleep30-21swapper/321:46:483
14192770,0sleep40-21swapper/421:18:034
219002760,0sleep00-21swapper/023:30:410
203542760,0sleep30-21swapper/300:33:133
169172760,0sleep30-21swapper/300:36:413
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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