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2026-09-04 - 13:09
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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 Sep 04, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21862281218,20sleep10-21swapper/119:09:121
22302279248,21sleep20-21swapper/219:09:452
20652270246,15sleep00-21swapper/019:07:370
22082258225,22sleep30-21swapper/319:09:303
69232690,1sleep30-21swapper/323:12:343
40092610,0sleep30-21swapper/322:13:483
65692600,0sleep00-21swapper/023:31:130
307552600,0sleep00-21swapper/000:05:130
231952590,0sleep00-21swapper/021:27:320
225552590,1sleep30-21swapper/321:45:533
52722580,0sleep20-21swapper/221:16:512
39062580,0sleep30-21swapper/300:27:303
305432570,0sleep00-21swapper/000:24:310
203322550,0sleep10-21swapper/122:42:011
138272550,1sleep10-21swapper/119:30:211
192552200,0sleep10-21swapper/123:20:131
311162190,0sleep20-21swapper/200:05:152
319452180,2sleep122-21ksoftirqd/121:13:551
257962170,0sleep10-21swapper/123:42:551
184902140,0sleep30-21swapper/321:25:103
2367991210,2cyclictest22-21ksoftirqd/122:15:011
2367991210,2cyclictest22-21ksoftirqd/100:00:011
313772110,0sleep00-21swapper/023:45:470
236799118,2cyclictest22-21ksoftirqd/119:15:021
2367991110,1cyclictest22-21ksoftirqd/122:20:011
236799108,2cyclictest22-21ksoftirqd/122:55:011
23679998,1cyclictest22-21ksoftirqd/122:35:011
23679998,1cyclictest22-21ksoftirqd/121:45:011
23679998,1cyclictest22-21ksoftirqd/121:20:001
23679998,1cyclictest22-21ksoftirqd/119:30:011
23679997,2cyclictest22-21ksoftirqd/120:55:001
23679997,2cyclictest22-21ksoftirqd/120:50:001
23679996,2cyclictest22-21ksoftirqd/121:04:591
23679996,1cyclictest22-21ksoftirqd/122:45:331
23679996,1cyclictest22-21ksoftirqd/121:32:461
23679991,5cyclictest22-21ksoftirqd/100:28:431
7356280,0chrt0-21swapper/121:56:031
23759984,3cyclictest275-21systemd-journal23:05:013
23719986,1cyclictest13268-21/usr/sbin/munin23:35:192
23719985,2cyclictest28-21ksoftirqd/219:45:012
23679987,1cyclictest22-21ksoftirqd/123:15:011
23679987,1cyclictest22-21ksoftirqd/121:55:011
23679987,1cyclictest22-21ksoftirqd/121:10:001
23679987,1cyclictest22-21ksoftirqd/120:35:001
23679987,1cyclictest22-21ksoftirqd/120:20:001
23679987,1cyclictest22-21ksoftirqd/120:00:001
23679985,2cyclictest30389-21/usr/sbin/munin00:05:181
23679983,3cyclictest22-21ksoftirqd/123:47:461
23679983,3cyclictest22-21ksoftirqd/123:31:181
23679983,3cyclictest141rcu_preempt23:17:281
23679983,3cyclictest141rcu_preempt21:21:321
23679982,4cyclictest22-21ksoftirqd/122:25:211
23679982,4cyclictest22-21ksoftirqd/122:05:271
23679982,4cyclictest211rcuc/100:31:101
23679981,5cyclictest22-21ksoftirqd/120:40:141
23679981,5cyclictest22-21ksoftirqd/119:10:141
23679981,5cyclictest22-21ksoftirqd/100:21:301
23679981,2cyclictest22-21ksoftirqd/123:52:001
23679980,7cyclictest534-21ssh23:09:081
23679980,4cyclictest0-21swapper/100:15:131
1773280,0sleep30-21swapper/321:53:143
23759974,2cyclictest34-21ksoftirqd/320:20:003
23759974,2cyclictest15221-21snmpd23:27:053
23759973,3cyclictest8962-11brltty22:08:573
23759973,3cyclictest275-21systemd-journal20:30:003
23759973,3cyclictest15221-21snmpd23:44:243
23759973,3cyclictest15221-21snmpd20:12:383
23759973,2cyclictest275-21systemd-journal20:58:193
23719976,1cyclictest0-21swapper/223:11:522
23719974,2cyclictest15221-21snmpd22:41:132
23719973,3cyclictest504-21dbus-daemon00:00:012
23719973,3cyclictest15221-21snmpd23:34:292
23719973,3cyclictest15221-21snmpd19:39:252
23719972,4cyclictest28268-21cut21:30:222
23679976,1cyclictest22-21ksoftirqd/100:00:011
23679975,1cyclictest0-21swapper/100:35:301
23679974,1cyclictest211rcuc/121:35:311
23679973,3cyclictest7978-21apt19:20:131
23679972,3cyclictest22-21ksoftirqd/122:57:171
23679971,3cyclictest22-21ksoftirqd/123:35:471
23679971,1cyclictest17778-21apt-get23:00:121
23679970,5cyclictest22-21ksoftirqd/122:02:571
23679970,5cyclictest22-21ksoftirqd/120:25:161
23679970,5cyclictest22171-21gltestperf19:50:151
23679970,5cyclictest0-21swapper/100:10:141
23679970,4cyclictest22-21ksoftirqd/123:28:131
23679970,4cyclictest0-21swapper/122:20:121
23679970,3cyclictest0-21swapper/122:32:201
23679970,2cyclictest22-21ksoftirqd/121:25:141
23679970,2cyclictest22-21ksoftirqd/120:35:131
23639974,2cyclictest15221-21snmpd21:43:280
23639974,2cyclictest12-21ksoftirqd/020:45:000
23639973,3cyclictest6604-21sshd20:27:370
23639973,3cyclictest275-21systemd-journal22:45:010
23639973,3cyclictest275-21systemd-journal19:37:260
23639973,2cyclictest275-21systemd-journal21:47:460
23639972,2cyclictest24924-21diskmemload21:10:000
23639970,6cyclictest21306-21chrt19:49:260
16593270,0sleep20-21swapper/222:59:322
23759966,0cyclictest0-21swapper/323:50:363
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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