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2026-05-07 - 18:06
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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 Thu May 07, 2026 12:45:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
209982213158,43sleep10-21swapper/107:06:171
212252211147,21sleep20-21swapper/207:09:162
210722206156,24sleep30-21swapper/307:07:153
212062199161,24sleep00-21swapper/007:09:010
31562690,0sleep20-21swapper/211:00:312
2137799140,13cyclictest0-21swapper/208:15:112
2136099140,13cyclictest14214-21diskmemload12:00:100
187532140,0sleep314214-21diskmemload09:55:213
21382991312,1cyclictest35-21ksoftirqd/311:00:003
21377991210,1cyclictest28-21ksoftirqd/208:15:002
2137799120,12cyclictest0-21swapper/209:26:342
2136099123,4cyclictest26794-21sed07:20:000
2137799117,1cyclictest28-21ksoftirqd/212:20:042
2138299100,1cyclictest0-21swapper/308:20:103
2137799102,7cyclictest0-21swapper/211:51:452
2136099106,2cyclictest240-21systemd-journal07:54:010
2136099100,5cyclictest26231-21ssh10:50:110
213829999,0cyclictest35-21ksoftirqd/312:00:013
213829998,1cyclictest6738-21ssh10:24:153
213829998,1cyclictest35-21ksoftirqd/310:50:003
213829998,1cyclictest35-21ksoftirqd/309:25:123
213829990,7cyclictest8803-21apt-get11:10:093
213829990,6cyclictest1293-21/usr/sbin/munin11:00:163
213829990,5cyclictest0-21swapper/312:00:293
213829990,0cyclictest0-21swapper/312:13:133
213779997,1cyclictest28-21ksoftirqd/207:44:592
213779991,5cyclictest528-21rpcbind08:35:432
213779991,2cyclictest12574-21apt-get11:15:112
213779991,1cyclictest15770-21sh08:04:592
213779990,9cyclictest61650irq/122-eno111:12:182
213609998,1cyclictest561-21nscd09:24:350
213609992,4cyclictest0-21swapper/009:16:460
213609992,4cyclictest0-21swapper/009:16:450
213609991,7cyclictest31987-21ssh09:30:200
213609990,6cyclictest561-21nscd09:40:110
213609990,1cyclictest240-21systemd-journal10:12:180
213609990,1cyclictest240-21systemd-journal09:25:030
213829988,0cyclictest14214-21diskmemload11:43:363
213829987,1cyclictest35-21ksoftirqd/310:45:013
213829987,1cyclictest35-21ksoftirqd/309:55:013
213829986,0cyclictest27613-21kworker/3:010:12:493
213829981,3cyclictest0-21swapper/311:06:033
213829980,6cyclictest14013-21python11:15:183
213829980,5cyclictest0-21swapper/309:39:123
213829980,3cyclictest0-21swapper/309:15:183
213829980,3cyclictest0-21swapper/309:15:183
213829980,2cyclictest0-21swapper/310:08:493
213779988,0cyclictest0-21swapper/208:31:532
213779987,1cyclictest28-21ksoftirqd/212:04:592
213779986,1cyclictest61650irq/122-eno111:40:002
213779986,1cyclictest61650irq/122-eno110:19:432
213779986,1cyclictest61650irq/122-eno110:10:122
213779986,1cyclictest61650irq/122-eno107:55:182
213779983,2cyclictest240-21systemd-journal09:12:332
213779981,1cyclictest3564-21apt-get10:20:112
213779980,8cyclictest0-21swapper/211:56:282
213779980,7cyclictest24633-21latency_hist10:05:012
213779980,7cyclictest23742-21munin-node11:40:412
213779980,7cyclictest0-21swapper/212:10:192
213779980,7cyclictest0-21swapper/210:45:142
213779980,7cyclictest0-21swapper/210:45:142
213609988,0cyclictest70772sleep012:33:230
213609987,1cyclictest10420-21ssh10:29:020
213609986,1cyclictest9-21ksoftirqd/009:02:000
213609986,1cyclictest22478-21ssh11:26:570
213609983,1cyclictest30623-21perl10:55:150
213609981,6cyclictest3296-21ssh11:00:560
213609981,4cyclictest1982-21sendmail-mta10:02:360
213609980,7cyclictest969-21ntp_states10:15:180
213609980,7cyclictest3763-21munin-run07:40:010
213609980,6cyclictest0-21swapper/010:24:350
213609980,4cyclictest16127-21latency_hist11:20:000
213829976,1cyclictest5964-21ntpq08:50:173
213829976,1cyclictest35-21ksoftirqd/310:35:003
213829976,1cyclictest35-21ksoftirqd/309:00:003
213829975,1cyclictest10749-21ssh12:38:103
213829975,0cyclictest14214-21diskmemload09:30:053
213829973,1cyclictest14214-21diskmemload12:15:073
213829971,6cyclictest27216-21kworker/u8:010:27:523
213829971,3cyclictest6436-21fschecks_time09:40:133
213829970,5cyclictest240-21systemd-journal08:30:003
213829970,5cyclictest0-21swapper/312:25:473
213829970,4cyclictest0-21swapper/312:33:093
213829970,4cyclictest0-21swapper/311:47:153
213829970,4cyclictest0-21swapper/309:20:413
213829970,3cyclictest0-21swapper/311:52:403
213829970,3cyclictest0-21swapper/310:15:263
213829970,2cyclictest0-21swapper/311:38:543
213829970,1cyclictest240-21systemd-journal11:34:543
213779976,1cyclictest61650irq/122-eno110:06:142
213779976,1cyclictest61650irq/122-eno109:16:322
213779976,1cyclictest61650irq/122-eno109:16:312
213779976,1cyclictest61650irq/122-eno108:45:152
213779976,1cyclictest61650irq/122-eno107:25:202
213779976,1cyclictest61650irq/122-eno107:25:192
213779976,1cyclictest28-21ksoftirqd/207:45:002
213779976,0cyclictest61650irq/122-eno112:35:192
213779975,1cyclictest61650irq/122-eno111:25:132
213779975,1cyclictest61650irq/122-eno110:40:192
213779975,1cyclictest28446-21switchtime07:20:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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