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2025-12-27 - 18:26
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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 100 highest latencies:
System rack3slot0.osadl.org (updated Sat Dec 27, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
219512550,2sleep03030899cyclictest09:56:310
87212540,1sleep557-21ksoftirqd/511:50:085
3015425126,9sleep70-21swapper/707:09:037
209912510,0sleep00-21swapper/009:53:100
208882500,0sleep00-21swapper/010:40:030
172172490,1sleep317218-21kworker/u16:010:49:513
135122490,0sleep10-21swapper/112:34:491
229812480,0sleep222871-21sshd09:29:422
193962480,0sleep50-21swapper/510:43:295
2877224725,8sleep30-21swapper/307:04:503
3004224624,7sleep20-21swapper/207:07:302
281742460,0sleep40-21swapper/409:43:454
281742460,0sleep40-21swapper/409:43:454
26412460,1sleep02639-21bash11:39:300
192362460,0sleep20-21swapper/210:19:472
185712450,0sleep30-21swapper/311:17:223
290022440,0sleep60-21swapper/609:23:376
274742440,2sleep13031399cyclictest11:45:151
215302440,0sleep70-21swapper/711:38:007
12802430,0sleep40-21swapper/410:58:334
222282420,0sleep10-21swapper/111:41:231
44212410,0sleep60-21swapper/612:16:526
3003724129,8sleep60-21swapper/607:07:256
116322410,0sleep00-21swapper/009:41:570
116322410,0sleep00-21swapper/009:41:570
3009024028,9sleep10-21swapper/107:08:091
3004924029,8sleep00-21swapper/007:07:360
3003624027,9sleep50-21swapper/507:07:245
224212400,0sleep60-21swapper/611:58:346
219242400,0sleep70-21swapper/710:16:407
198672400,0sleep3784-21runrttasks09:46:083
167072400,0sleep40-21swapper/411:40:464
124302400,0sleep10-21swapper/111:30:101
2991923927,9sleep40-21swapper/407:05:474
200352390,0sleep40-21swapper/409:46:094
134672390,1sleep613463-21bash11:20:056
124282390,0sleep60-21swapper/611:50:336
113162370,0sleep40-21swapper/411:57:194
89312360,0sleep60-21swapper/610:18:476
183182350,0sleep70-21swapper/709:52:537
322032340,0sleep00-21swapper/011:11:590
142582320,0sleep30-21swapper/310:42:543
3030899244,6cyclictest3503-21grep11:59:490
3030899243,5cyclictest17679-21systemd11:34:170
3030899243,5cyclictest1-21systemd10:03:150
3030899234,5cyclictest1-21systemd11:40:180
3030899233,7cyclictest0-21swapper/011:22:150
3030899233,6cyclictest1877-21id11:56:170
3030899232,6cyclictest686-21dbus-daemon11:25:400
3030899223,6cyclictest1-21systemd09:29:430
3030899223,5cyclictest26431-21sshd10:07:050
3030899223,4cyclictest16654-21systemd-cgroups10:56:400
3030899223,3cyclictest0-21swapper/011:18:150
3030899214,2cyclictest8435-21systemd12:10:270
3030899214,2cyclictest4932-21taskset10:28:230
3030899213,5cyclictest24724-21grepconf.sh12:29:190
3030899212,5cyclictest18903-21entropy10:09:440
3030899211,4cyclictest0-21swapper/009:15:270
3030899205,3cyclictest2006-21grepconf.sh09:14:030
3030899204,4cyclictest28034-21sh11:04:440
3030899203,6cyclictest15923-21systemd09:39:070
3030899203,5cyclictest0-21swapper/012:15:110
3030899203,2cyclictest10708-21sshd09:24:530
3030899202,6cyclictest8970-21sshd10:35:180
3030899202,3cyclictest10390-21sshd10:22:100
3030899202,3cyclictest0-21swapper/011:51:450
3030899201,6cyclictest0-21swapper/009:44:420
250372200,0sleep5551rcuc/510:10:135
54452190,1sleep35446-21grepconf.sh09:38:003
3030899194,2cyclictest686-21dbus-daemon10:47:270
3030899193,7cyclictest0-21swapper/010:53:430
3030899193,6cyclictest22855-21grepconf.sh12:32:290
3030899193,6cyclictest0-21swapper/012:06:240
3030899193,6cyclictest0-21swapper/012:06:240
3030899193,5cyclictest492-21systemd-journal12:37:360
3030899192,7cyclictest22102-21systemd11:00:390
3030899192,6cyclictest0-21swapper/011:48:410
3030899192,2cyclictest21942-21sshd12:22:060
32972180,0sleep70-21swapper/711:12:227
30321991816,1cyclictest33-21ksoftirqd/210:01:532
3030899184,6cyclictest23472-21sd-pam09:19:400
3030899183,6cyclictest0-21swapper/010:15:320
3030899183,5cyclictest1-21systemd10:30:030
282422180,0sleep10-21swapper/109:30:051
30348991711,2cyclictest1-21systemd11:03:107
3033199177,2cyclictest49-21ksoftirqd/411:51:524
3033199173,1cyclictest49-21ksoftirqd/410:08:364
30331991715,1cyclictest49-21ksoftirqd/412:34:494
30331991715,1cyclictest49-21ksoftirqd/410:03:154
30331991715,1cyclictest49-21ksoftirqd/409:20:174
30331991713,1cyclictest49-21ksoftirqd/410:28:454
30321991714,2cyclictest0-21swapper/212:13:452
3030899174,5cyclictest1842-21systemd09:09:300
36662160,8sleep665-21ksoftirqd/610:24:486
30331991615,1cyclictest5561-21kworker/4:511:21:514
30331991615,1cyclictest49-21ksoftirqd/409:59:114
30331991615,1cyclictest49-21ksoftirqd/409:39:304
30331991615,1cyclictest49-21ksoftirqd/409:25:484
30331991614,1cyclictest49-21ksoftirqd/412:13:404
30331991614,1cyclictest49-21ksoftirqd/411:36:024
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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