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2026-03-27 - 18:37
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackaslot8.osadl.org (updated Fri Mar 27, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
286422286221,22sleep00-21swapper/007:09:390
285182283252,20sleep20-21swapper/207:08:202
283402280250,20sleep10-21swapper/107:06:021
284842253225,18sleep30-21swapper/307:07:533
228212590,0sleep10-21swapper/109:30:561
70512570,1sleep37043-21apt-get10:40:113
109962570,0sleep10-21swapper/111:40:191
325732560,0sleep20-21swapper/211:34:272
319842560,0sleep20-21swapper/209:36:382
270092560,0sleep10-21swapper/110:51:261
15612540,0sleep00-21swapper/010:16:370
146662530,0sleep30-21swapper/309:45:293
27542210,0sleep10-21swapper/109:39:051
78412180,0sleep20-21swapper/210:01:022
101962170,0sleep00-21swapper/011:40:140
28790991312,1cyclictest28-21ksoftirqd/212:10:012
2879099129,2cyclictest28-21ksoftirqd/212:00:012
2879099129,2cyclictest28-21ksoftirqd/210:15:012
2879099119,1cyclictest28-21ksoftirqd/210:40:012
2879099119,1cyclictest28-21ksoftirqd/208:40:002
10642110,0sleep30-21swapper/309:37:473
2879099109,1cyclictest28-21ksoftirqd/212:25:002
2879099108,2cyclictest28-21ksoftirqd/207:15:012
2879099107,2cyclictest28-21ksoftirqd/212:40:002
2879099100,2cyclictest28-21ksoftirqd/209:55:012
287909998,1cyclictest28-21ksoftirqd/211:40:012
287909998,1cyclictest28-21ksoftirqd/211:15:002
287909998,1cyclictest28-21ksoftirqd/210:20:012
287909998,1cyclictest28-21ksoftirqd/209:30:002
287909993,4cyclictest141rcu_preempt10:32:242
287909991,1cyclictest271rcuc/208:25:012
24575290,1sleep3331rcuc/309:32:193
287909987,1cyclictest28-21ksoftirqd/209:40:002
287909987,1cyclictest28-21ksoftirqd/209:10:012
287909987,1cyclictest28-21ksoftirqd/209:10:002
287909987,1cyclictest28-21ksoftirqd/208:10:012
287909987,1cyclictest28-21ksoftirqd/207:55:012
287909987,1cyclictest28-21ksoftirqd/207:30:012
287909987,1cyclictest28-21ksoftirqd/207:15:012
287909987,1cyclictest271rcuc/208:45:002
287909986,1cyclictest28-21ksoftirqd/208:30:002
287909986,1cyclictest28-21ksoftirqd/208:00:012
287909985,2cyclictest28-21ksoftirqd/211:40:112
287909984,2cyclictest0-21swapper/209:46:022
287909983,3cyclictest28-21ksoftirqd/210:51:282
287909982,4cyclictest2991-21cut12:15:132
287909982,4cyclictest271rcuc/211:25:292
287909981,5cyclictest28-21ksoftirqd/207:20:172
287909981,4cyclictest28-21ksoftirqd/209:15:492
287909980,5cyclictest28-21ksoftirqd/210:28:512
287819982,3cyclictest5363-21tr08:40:000
287939973,3cyclictest275-21systemd-journal09:59:013
287939973,3cyclictest275-21systemd-journal09:12:133
287939973,1cyclictest0-21swapper/310:08:313
287939971,2cyclictest9103-21turbostat.cron11:40:003
287939970,6cyclictest14928-11brltty09:08:033
287939970,1cyclictest0-21swapper/312:21:053
287909976,1cyclictest28-21ksoftirqd/212:30:002
287909976,1cyclictest28-21ksoftirqd/209:35:012
287909976,1cyclictest28-21ksoftirqd/208:20:012
287909975,2cyclictest28-21ksoftirqd/210:45:012
287909974,2cyclictest28-21ksoftirqd/212:10:102
287909974,2cyclictest271rcuc/211:10:002
287909974,1cyclictest28-21ksoftirqd/212:00:082
287909973,1cyclictest141rcu_preempt09:00:142
287909972,3cyclictest28-21ksoftirqd/211:00:142
287909971,5cyclictest28-21ksoftirqd/210:40:302
287909971,4cyclictest6799-21sh10:59:302
287909971,4cyclictest28-21ksoftirqd/211:47:032
287909971,4cyclictest28-21ksoftirqd/211:15:182
287909971,4cyclictest28-21ksoftirqd/210:24:272
287909971,4cyclictest28-21ksoftirqd/208:45:162
287909970,5cyclictest28-21ksoftirqd/211:50:432
287909970,5cyclictest28-21ksoftirqd/210:06:182
287909970,5cyclictest28-21ksoftirqd/209:22:402
287909970,4cyclictest28-21ksoftirqd/212:26:322
287909970,2cyclictest28-21ksoftirqd/208:55:122
287859973,3cyclictest658-21snmpd12:06:271
287859973,3cyclictest658-21snmpd11:03:051
287859973,3cyclictest658-21snmpd10:14:551
287859973,3cyclictest352-21grep08:25:191
287859973,2cyclictest275-21systemd-journal12:03:231
287859971,3cyclictest31097-21munin-run08:25:011
287819973,3cyclictest11357-21diskstats07:40:140
287819971,5cyclictest8568-21grep11:00:140
287819970,1cyclictest0-21swapper/011:34:210
1564270,0sleep00-21swapper/009:18:460
4460260,0sleep30-21swapper/309:40:113
287939966,0cyclictest0-21swapper/311:11:483
287939963,2cyclictest7373-21ntpq07:30:173
287939963,2cyclictest6793-21ssh09:21:243
287939963,2cyclictest658-21snmpd08:01:053
287939963,2cyclictest658-21snmpd08:01:053
287939963,2cyclictest5391-21ssh11:56:393
287939963,2cyclictest5256-21ssh11:17:323
287939963,2cyclictest3324-21chrt07:21:343
287939963,2cyclictest275-21systemd-journal11:50:063
287939963,2cyclictest2443-21sh12:15:093
287939963,2cyclictest19152-21sh11:06:133
287939963,2cyclictest12770-21tune2fs08:55:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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