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2026-07-18 - 13:56
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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 Sat Jul 18, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
123662287261,17sleep20-21swapper/219:06:142
126522277247,20sleep00-21swapper/019:09:370
125412276246,18sleep10-21swapper/119:08:141
124142270239,20sleep30-21swapper/319:06:353
27812620,0sleep10-21swapper/100:24:461
286122610,0sleep30-21swapper/323:41:083
286122610,0sleep30-21swapper/323:41:083
202592560,1sleep320262-21latency_hist19:25:013
39852540,0sleep00-21swapper/000:05:190
294622540,0sleep30-21swapper/322:43:263
159942540,0sleep20-21swapper/223:14:402
175752180,0sleep30-21swapper/300:13:553
140412180,0sleep10-21swapper/123:52:111
258842170,0sleep10-21swapper/122:21:171
233332160,0sleep30-21swapper/322:59:313
269062140,0sleep00-21swapper/023:00:530
127859990,8cyclictest8810-21hddtemp_smartct20:10:122
127769998,1cyclictest12-21ksoftirqd/021:50:020
27874280,2sleep2281ksoftirqd/219:40:142
127859986,1cyclictest14979-21munin-setwarn19:15:012
127859984,3cyclictest275-21systemd-journal21:38:292
127819986,1cyclictest3389-21users23:45:191
127819984,2cyclictest658-21snmpd21:38:031
127769986,2cyclictest12-21ksoftirqd/000:00:010
127769983,3cyclictest275-21systemd-journal19:15:440
25864270,0sleep228-21ksoftirqd/220:50:002
127909973,3cyclictest8666-21apt-get23:10:133
127909973,3cyclictest658-21snmpd23:39:143
127909973,3cyclictest658-21snmpd21:04:263
127909972,3cyclictest275-21systemd-journal19:52:263
127859974,2cyclictest4877-21runrttasks00:05:442
127859973,3cyclictest658-21snmpd23:29:052
127859973,3cyclictest275-21systemd-journal19:30:012
127859971,3cyclictest23993-21apt23:00:002
127819976,1cyclictest26361-21ssh00:00:071
127819973,3cyclictest658-21snmpd23:28:561
127819973,3cyclictest275-21systemd-journal21:31:181
127819973,3cyclictest275-21systemd-journal21:20:011
127819971,3cyclictest16469-21munin-run23:15:011
127769974,2cyclictest9457-21cron23:50:010
127769973,3cyclictest658-21snmpd00:28:560
127769970,4cyclictest275-21systemd-journal20:21:330
127769970,1cyclictest133372sleep022:14:390
6549260,1sleep30-21swapper/322:10:143
127909966,0cyclictest0-21swapper/322:20:393
127909966,0cyclictest0-21swapper/321:40:493
127909966,0cyclictest0-21swapper/300:37:243
127909966,0cyclictest0-21swapper/300:17:473
127909963,2cyclictest658-21snmpd23:30:083
127909963,2cyclictest658-21snmpd23:27:163
127909963,2cyclictest5826-21cat21:30:203
127909963,2cyclictest504-21dbus-daemon19:35:013
127909963,2cyclictest501-21in:imuxsock19:29:293
127909963,2cyclictest32557-21ssh22:25:193
127909963,2cyclictest32496-21ssh22:05:483
127909963,2cyclictest30773-21ssh00:21:203
127909963,2cyclictest2972-21ssh21:29:243
127909963,2cyclictest275-21systemd-journal20:53:183
127909963,2cyclictest26302-21ssh23:00:243
127909963,2cyclictest24424-21ssh21:22:223
127909963,2cyclictest22537-21head22:00:153
127909963,2cyclictest17723-21ssh22:16:393
127909963,2cyclictest16004-21ssh21:36:413
127909963,2cyclictest13305-21sh22:33:463
127909963,2cyclictest11634-21ssh21:15:093
127909962,3cyclictest658-21snmpd23:45:583
127909962,3cyclictest658-21snmpd22:50:193
127909962,3cyclictest658-21snmpd21:56:373
127909962,3cyclictest658-21snmpd21:05:353
127909962,3cyclictest658-21snmpd20:38:353
127909962,3cyclictest658-21snmpd20:20:363
127909962,3cyclictest658-21snmpd19:56:463
127909962,3cyclictest658-21snmpd19:15:203
127909962,3cyclictest658-21snmpd00:01:313
127909962,3cyclictest6069-21cat20:05:113
127909962,3cyclictest504-21dbus-daemon00:25:213
127909962,3cyclictest3846-21cat21:10:143
127909962,3cyclictest28819-21expr20:55:133
127909962,3cyclictest275-21systemd-journal20:30:003
127909962,3cyclictest17636-21cat23:15:133
127909962,3cyclictest12846-21ntpq00:30:173
127909962,2cyclictest658-21snmpd00:08:293
127909962,2cyclictest275-21systemd-journal20:34:563
127909962,1cyclictest0-21swapper/323:56:553
127909962,1cyclictest0-21swapper/322:35:103
127909960,6cyclictest0-21swapper/323:23:113
127909960,5cyclictest31963-21/usr/sbin/munin22:45:203
127909960,3cyclictest13343-21sh23:51:373
127859966,0cyclictest0-21swapper/222:48:452
127859966,0cyclictest0-21swapper/222:39:452
127859966,0cyclictest0-21swapper/222:20:012
127859966,0cyclictest0-21swapper/220:05:312
127859966,0cyclictest0-21swapper/200:22:282
127859963,2cyclictest7622-21fschecks_time22:30:142
127859963,2cyclictest658-21snmpd20:28:532
127859963,2cyclictest658-21snmpd19:33:482
127859963,2cyclictest504-21dbus-daemon00:36:402
127859963,2cyclictest5000-21ssh22:09:362
127859963,2cyclictest4254-21cat00:25:142
127859963,2cyclictest31642-21sh00:03:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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