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2026-07-31 - 19:09
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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 Jul 31, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
53732317292,16sleep20-21swapper/207:09:002
52782278246,21sleep00-21swapper/007:08:020
54492272241,21sleep30-21swapper/307:09:573
51912271239,21sleep10-21swapper/107:06:541
44392630,0sleep20-21swapper/210:32:332
104192630,0sleep30-21swapper/309:37:403
45862600,0sleep10-21swapper/111:11:161
14202600,0sleep00-21swapper/011:48:550
124452600,0sleep20-21swapper/212:34:092
105722570,1sleep00-21swapper/012:13:170
49612560,1sleep10-21swapper/111:50:191
30982560,0sleep10-21swapper/109:52:481
131122190,0sleep30-21swapper/308:35:023
136402170,0sleep313536-21cstates12:15:133
281402150,0sleep00-21swapper/012:05:010
57662120,0sleep15753-21ssh09:15:151
284532110,0sleep30-21swapper/311:25:323
26565290,0sleep00-21swapper/010:25:580
8610280,0sleep10-21swapper/110:15:191
55749986,2cyclictest34-21ksoftirqd/310:40:023
55749984,3cyclictest25260-21ntpq09:00:173
55729984,3cyclictest275-21systemd-journal11:34:512
55729983,3cyclictest275-21systemd-journal12:25:502
55679986,2cyclictest22-21ksoftirqd/108:20:011
55679984,3cyclictest275-21systemd-journal07:16:151
55679983,3cyclictest304-21systemd-udevd07:20:141
55639985,2cyclictest658-21snmpd09:35:300
55639985,2cyclictest3413-21munin-run08:15:010
55639983,3cyclictest275-21systemd-journal07:24:490
2545280,0sleep20-21swapper/212:08:432
16785280,1sleep10-21swapper/109:21:441
55749975,2cyclictest34-21ksoftirqd/311:05:013
55749973,3cyclictest10559-11brltty08:15:423
55749973,2cyclictest275-21systemd-journal12:21:393
55749973,1cyclictest0-21swapper/311:43:273
55749973,1cyclictest0-21swapper/310:31:483
55749971,1cyclictest141rcu_preempt11:10:123
55749970,7cyclictest0-21swapper/309:31:583
55729974,2cyclictest275-21systemd-journal12:05:002
55729973,3cyclictest304-21systemd-udevd07:26:362
55679975,2cyclictest30442-21sh10:48:101
55679974,2cyclictest275-21systemd-journal11:39:521
55679974,2cyclictest275-21systemd-journal08:37:261
55679972,3cyclictest275-21systemd-journal11:04:441
55679972,3cyclictest275-21systemd-journal08:31:361
55679970,7cyclictest28523-21diskmemload11:57:491
55639974,2cyclictest275-21systemd-journal12:07:290
55639973,3cyclictest275-21systemd-journal10:36:460
55639973,3cyclictest275-21systemd-journal07:29:240
55639973,3cyclictest15134-21cron08:40:010
55639973,1cyclictest0-21swapper/009:54:350
55639972,3cyclictest12723-21turbostat09:19:590
55639970,1cyclictest8995-21ssh09:55:570
25419270,0sleep10-21swapper/111:43:471
21936270,0sleep30-21swapper/309:45:023
55749965,1cyclictest76-21kswapd012:10:013
55749965,1cyclictest34-21ksoftirqd/308:59:593
55749964,1cyclictest34-21ksoftirqd/308:00:003
55749963,2cyclictest658-21snmpd12:07:473
55749963,2cyclictest658-21snmpd11:59:293
55749963,2cyclictest658-21snmpd11:33:203
55749963,2cyclictest658-21snmpd11:16:013
55749963,2cyclictest658-21snmpd09:59:363
55749963,2cyclictest5755-21cat07:10:123
55749963,2cyclictest5367-21tune2fs09:15:123
55749963,2cyclictest4812-21sh10:52:003
55749963,2cyclictest337-21ssh09:11:563
55749963,2cyclictest26657-21ssh11:05:163
55749963,2cyclictest25778-21cat10:45:153
55749963,2cyclictest23779-21expr10:05:153
55749963,2cyclictest20686-21cat08:50:163
55749963,2cyclictest18278-21sh10:20:583
55749963,2cyclictest17900-21ssh09:22:363
55749963,2cyclictest17415-21cat07:35:013
55749963,2cyclictest16440-21cut08:40:193
55749963,1cyclictest0-21swapper/311:36:063
55749962,3cyclictest7605-21grep10:15:123
55749962,3cyclictest658-21snmpd11:50:503
55749962,3cyclictest658-21snmpd11:20:493
55749962,3cyclictest658-21snmpd10:55:163
55749962,3cyclictest658-21snmpd10:27:023
55749962,3cyclictest658-21snmpd10:02:473
55749962,3cyclictest658-21snmpd08:25:533
55749962,3cyclictest658-21snmpd08:06:493
55749962,3cyclictest658-21snmpd07:51:373
55749962,3cyclictest658-21snmpd07:36:433
55749962,3cyclictest30372-21ntpq08:00:163
55749962,3cyclictest27721-21seq11:45:123
55749962,3cyclictest23646-21sensors_temp07:45:213
55749962,3cyclictest16504-21packagekitd10:40:023
55749962,3cyclictest15192-21sed12:35:193
55749962,3cyclictest0-21swapper/310:10:123
55749962,1cyclictest0-21swapper/309:25:063
55749960,6cyclictest0-21swapper/312:30:573
55749960,6cyclictest0-21swapper/309:45:563
55749960,2cyclictest11249-21expr08:30:163
55729966,0cyclictest0-21swapper/210:10:012
55729963,2cyclictest9394-21ntp_states08:25:172
55729963,2cyclictest658-21snmpd11:54:142
55729963,2cyclictest658-21snmpd09:33:552
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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