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2026-09-20 - 03:52
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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 rackdslot2.osadl.org (updated Sun Sep 20, 2026 00:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
275072209166,32sleep30-21swapper/319:07:163
277092208175,22sleep20-21swapper/219:09:512
274302206172,22sleep10-21swapper/119:06:211
276452204170,22sleep00-21swapper/019:09:010
189622670,1sleep118963-21/usr/sbin/munin23:20:151
189622670,1sleep118963-21/usr/sbin/munin23:20:151
139291640,1ptp4l401ktimersoftd/320:55:193
28012996332,5cyclictest9-21ksoftirqd/020:40:150
28012996230,3cyclictest9-21ksoftirqd/023:20:150
28012996230,3cyclictest9-21ksoftirqd/023:20:150
139291620,1ptp4l401ktimersoftd/319:25:223
28012996028,8cyclictest9-21ksoftirqd/020:35:280
28012996027,5cyclictest9-21ksoftirqd/022:20:220
28012996027,4cyclictest9-21ksoftirqd/019:30:140
28012995929,7cyclictest9-21ksoftirqd/000:25:250
28012995828,4cyclictest9-21ksoftirqd/000:38:210
28012995828,4cyclictest9-21ksoftirqd/000:38:210
28012995827,7cyclictest9-21ksoftirqd/023:15:190
28012995827,4cyclictest9-21ksoftirqd/020:20:170
28012995827,4cyclictest9-21ksoftirqd/000:05:220
28012995826,4cyclictest9-21ksoftirqd/022:10:230
28012995823,4cyclictest9-21ksoftirqd/021:35:150
28012995823,3cyclictest9-21ksoftirqd/020:30:170
28012995819,6cyclictest9-21ksoftirqd/020:50:190
28012995819,6cyclictest9-21ksoftirqd/019:30:010
318082570,7sleep32801599cyclictest21:30:253
28012995727,3cyclictest9-21ksoftirqd/023:55:180
28012995710,3cyclictest9-21ksoftirqd/019:40:010
139291570,50ptp4l0-21swapper/319:10:013
28012995626,8cyclictest9-21ksoftirqd/021:00:010
28012995623,4cyclictest9-21ksoftirqd/021:45:250
28012995622,6cyclictest9-21ksoftirqd/019:50:140
28012995620,4cyclictest9-21ksoftirqd/019:45:260
28012995527,7cyclictest9-21ksoftirqd/023:30:180
28012995525,3cyclictest9-21ksoftirqd/023:50:270
28012995524,4cyclictest9-21ksoftirqd/022:27:470
28012995524,3cyclictest9-21ksoftirqd/021:25:010
28012995522,4cyclictest9-21ksoftirqd/021:00:160
28012995426,3cyclictest9-21ksoftirqd/019:13:370
28012995425,3cyclictest9-21ksoftirqd/023:11:020
28012995425,3cyclictest9-21ksoftirqd/021:05:130
28012995424,3cyclictest9-21ksoftirqd/021:14:360
318652530,2sleep20-21swapper/220:25:012
28012995323,3cyclictest9-21ksoftirqd/022:17:430
28012995322,3cyclictest9-21ksoftirqd/019:40:260
28012995315,6cyclictest9-21ksoftirqd/022:45:190
28012995314,4cyclictest9-21ksoftirqd/020:00:140
2801299527,3cyclictest217-21systemd-journal00:05:000
28012995239,3cyclictest9-21ksoftirqd/020:20:000
28012995222,4cyclictest9-21ksoftirqd/022:34:350
2801299518,3cyclictest9-21ksoftirqd/000:25:010
2801299515,3cyclictest9-21ksoftirqd/020:25:230
2801299514,3cyclictest9-21ksoftirqd/023:25:150
28012995126,6cyclictest9-21ksoftirqd/022:38:320
2801299507,2cyclictest9-21ksoftirqd/023:00:170
2801299506,3cyclictest9-21ksoftirqd/021:44:590
2801299504,2cyclictest9-21ksoftirqd/021:15:270
28012995021,7cyclictest9-21ksoftirqd/020:00:010
28012995019,4cyclictest9-21ksoftirqd/022:55:170
28012995017,6cyclictest9-21ksoftirqd/022:00:230
28012995017,6cyclictest9-21ksoftirqd/022:00:220
28012995013,3cyclictest9-21ksoftirqd/021:30:170
2801299497,3cyclictest9-21ksoftirqd/020:15:000
28012994921,4cyclictest9-21ksoftirqd/022:00:010
28012994910,5cyclictest9-21ksoftirqd/020:45:140
28012994910,5cyclictest9-21ksoftirqd/020:45:140
2801599483,9cyclictest41-21ksoftirqd/319:35:243
2801299486,3cyclictest9-21ksoftirqd/023:35:260
2801299485,3cyclictest9-21ksoftirqd/023:05:160
2801299484,2cyclictest9-21ksoftirqd/023:45:250
28012994835,3cyclictest9-21ksoftirqd/022:50:150
2801299483,3cyclictest9-21ksoftirqd/000:15:000
2801299483,2cyclictest9-21ksoftirqd/023:40:230
28012994820,4cyclictest9-21ksoftirqd/021:50:250
2801299481,5cyclictest9-21ksoftirqd/022:10:000
2801299477,3cyclictest9-21ksoftirqd/022:40:220
2801299474,6cyclictest9-21ksoftirqd/021:25:220
2801299473,2cyclictest9-21ksoftirqd/020:05:000
2801299467,2cyclictest9-21ksoftirqd/000:15:200
2801299463,6cyclictest9-21ksoftirqd/000:30:260
2801599453,9cyclictest41-21ksoftirqd/321:10:203
28015994533,9cyclictest41-21ksoftirqd/322:55:003
2801299452,7cyclictest9-21ksoftirqd/019:20:200
2801599435,9cyclictest41-21ksoftirqd/322:30:183
2801599431,3cyclictest121rcu_preempt19:20:273
2801499436,3cyclictest33-21ksoftirqd/221:15:212
28012994334,2cyclictest9-21ksoftirqd/019:15:200
28015994237,3cyclictest41-21ksoftirqd/320:05:043
28015994237,3cyclictest25156-21cron00:40:013
28015994237,3cyclictest25156-21cron00:40:003
28015994226,5cyclictest41-21ksoftirqd/300:25:283
2801599421,3cyclictest121rcu_preempt23:45:283
28014994223,4cyclictest33-21ksoftirqd/222:05:192
2801599414,4cyclictest121rcu_preempt23:51:453
2801599411,8cyclictest121rcu_preempt00:30:213
2801499410,2cyclictest121rcu_preempt21:00:292
28015994036,2cyclictest41-21ksoftirqd/300:15:003
28015994034,4cyclictest41-21ksoftirqd/321:48:263
28015994034,3cyclictest41-21ksoftirqd/322:10:013
28014994035,3cyclictest33-21ksoftirqd/200:10:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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