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2025-10-22 - 09:12
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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 rack1slot1.osadl.org (updated Wed Oct 22, 2025 00:45:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
289252228157,26sleep20-21swapper/219:08:242
289882212151,20sleep30-21swapper/319:09:143
288522207175,21sleep10-21swapper/119:07:261
287522205150,43sleep00-21swapper/019:06:090
205932720,0sleep20-21swapper/223:24:002
51522600,0sleep00-21swapper/023:45:560
68802140,0sleep10-21swapper/120:35:201
29149991311,1cyclictest9-21ksoftirqd/022:15:160
29149991311,1cyclictest15343-21systemctl00:00:230
2917999122,6cyclictest31491-21munin-node22:42:213
2915699120,4cyclictest0-21swapper/100:05:231
2915699120,4cyclictest0-21swapper/100:05:221
29179991110,1cyclictest35-21ksoftirqd/323:14:593
29179991110,1cyclictest35-21ksoftirqd/300:35:013
2916799110,10cyclictest581-21/usr/sbin/munin20:25:182
2914999119,1cyclictest9-21ksoftirqd/023:15:190
2914999119,1cyclictest9-21ksoftirqd/021:25:160
29149991110,1cyclictest29197-21cat00:20:170
12342110,0sleep20-21swapper/221:26:122
2916799108,1cyclictest28-21ksoftirqd/221:54:032
2914999109,1cyclictest9-21ksoftirqd/021:15:190
2914999109,1cyclictest9-21ksoftirqd/000:30:000
2914999109,1cyclictest23356-21ssh00:11:460
2914999109,0cyclictest2057-21taskset19:19:480
2914999109,0cyclictest16042-21ssh21:47:000
2914999108,1cyclictest9-21ksoftirqd/023:10:180
2914999108,1cyclictest9-21ksoftirqd/022:50:170
2914999108,1cyclictest9-21ksoftirqd/022:30:000
2914999108,1cyclictest20064-21diskmemload23:42:210
2914999101,4cyclictest9891-21cut21:40:010
2914999100,6cyclictest15133-21memory19:45:160
291799990,8cyclictest11779-21munin-node19:14:083
291799990,6cyclictest0-21swapper/323:28:103
291799990,2cyclictest0-21swapper/322:05:143
291679998,1cyclictest28-21ksoftirqd/200:22:472
291679990,8cyclictest0-21swapper/222:47:502
291569990,8cyclictest0-21swapper/100:10:191
291569990,6cyclictest0-21swapper/122:52:581
291569990,5cyclictest11178-21taskset19:35:451
291499999,0cyclictest9-21ksoftirqd/021:33:360
291499999,0cyclictest9-21ksoftirqd/000:30:010
291499999,0cyclictest18851-21ssh22:35:200
291499998,1cyclictest9-21ksoftirqd/023:55:150
291499998,1cyclictest9-21ksoftirqd/021:55:150
291499998,1cyclictest8926-21ssh00:36:040
291499997,1cyclictest9-21ksoftirqd/022:34:590
291499997,1cyclictest9-21ksoftirqd/022:25:010
291499997,1cyclictest9-21ksoftirqd/021:40:120
291499996,1cyclictest9-21ksoftirqd/021:09:550
291499994,5cyclictest20064-21diskmemload22:09:590
291499990,8cyclictest0-21swapper/022:40:150
291499990,4cyclictest28092-21sed22:05:000
291799987,1cyclictest35-21ksoftirqd/323:35:133
291799987,1cyclictest35-21ksoftirqd/319:40:003
291799986,1cyclictest26816-21cat20:10:173
291799982,4cyclictest17644-21apt-get23:20:143
291799982,1cyclictest661-21ntp_states00:25:193
291799981,6cyclictest2575-21runrttasks22:14:143
291799980,3cyclictest0-21swapper/321:30:143
291679986,2cyclictest28-21ksoftirqd/219:50:162
291679986,1cyclictest60950irq/123-eno123:11:292
291679986,1cyclictest60950irq/123-eno122:50:232
291679986,1cyclictest60950irq/123-eno122:10:192
291679986,1cyclictest60950irq/123-eno121:35:002
291679986,1cyclictest14455-21head21:45:162
291679984,2cyclictest254-21systemd-journal00:08:392
291679984,2cyclictest254-21systemd-journal00:08:382
291679981,5cyclictest23570-21apt-get20:05:132
291679980,5cyclictest14115-21irqstats20:55:142
291679980,1cyclictest0-21swapper/200:26:332
291569981,3cyclictest0-21swapper/121:11:421
291569980,7cyclictest0-21swapper/123:10:241
291569980,4cyclictest0-21swapper/122:55:291
291569980,2cyclictest0-21swapper/123:15:131
291499987,1cyclictest9-21ksoftirqd/020:20:140
291499987,1cyclictest9-21ksoftirqd/020:10:010
291499986,1cyclictest9-21ksoftirqd/020:30:000
23544280,0sleep10-21swapper/122:42:231
291799977,0cyclictest35-21ksoftirqd/300:37:333
291799976,1cyclictest35-21ksoftirqd/321:40:013
291799975,1cyclictest35-21ksoftirqd/320:59:443
291799975,1cyclictest35-21ksoftirqd/319:55:003
291799974,1cyclictest254-21systemd-journal00:20:003
291799972,2cyclictest20064-21diskmemload23:49:513
291799972,2cyclictest20064-21diskmemload22:30:183
291799972,2cyclictest0-21swapper/321:55:493
291799971,3cyclictest0-21swapper/322:22:523
291799971,2cyclictest0-21swapper/323:51:113
291799970,3cyclictest6669-21apt-get23:05:133
291799970,1cyclictest20064-21diskmemload00:01:063
291679976,1cyclictest60950irq/123-eno123:50:182
291679976,1cyclictest60950irq/123-eno123:19:142
291679976,1cyclictest60950irq/123-eno122:59:532
291679976,1cyclictest60950irq/123-eno122:37:392
291679976,1cyclictest60950irq/123-eno122:30:252
291679976,1cyclictest60950irq/123-eno121:23:352
291679976,1cyclictest60950irq/123-eno121:11:192
291679976,1cyclictest60950irq/123-eno100:17:582
291679976,1cyclictest28-21ksoftirqd/220:50:122
291679976,0cyclictest60950irq/123-eno100:12:042
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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