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2026-01-04 - 14:49
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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 rackdslot3.osadl.org (updated Sun Jan 04, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
187092225197,19sleep10-21swapper/119:08:591
187462205171,23sleep30-21swapper/319:09:293
187452203170,22sleep20-21swapper/219:09:272
186212200167,22sleep00-21swapper/019:07:490
19080995754,2cyclictest111rcuc/021:15:120
324042550,3sleep30-21swapper/320:45:163
164072540,2sleep20-21swapper/221:20:012
19081995314,4cyclictest25-21ksoftirqd/123:17:591
1908199520,21cyclictest3909-21iostat22:00:181
19081995015,3cyclictest25-21ksoftirqd/121:45:571
19081995014,4cyclictest25-21ksoftirqd/123:14:501
1908199501,11cyclictest30714-21/usr/sbin/munin22:55:211
19081994912,5cyclictest25-21ksoftirqd/121:00:151
19081994911,5cyclictest25-21ksoftirqd/122:08:041
19081994911,5cyclictest25-21ksoftirqd/119:35:251
1908099495,8cyclictest9-21ksoftirqd/023:40:240
19080994910,5cyclictest9-21ksoftirqd/023:20:270
49442480,1sleep20-21swapper/222:00:292
19083994812,4cyclictest41-21ksoftirqd/320:25:133
19081994814,3cyclictest25-21ksoftirqd/122:25:561
1908099487,6cyclictest9-21ksoftirqd/020:40:270
1908099486,8cyclictest9-21ksoftirqd/022:50:180
1908099483,6cyclictest9-21ksoftirqd/021:00:020
19080994821,9cyclictest9-21ksoftirqd/022:25:120
19083994713,7cyclictest41-21ksoftirqd/322:20:003
19082994741,4cyclictest8984-21cron23:20:002
1908199476,7cyclictest8812-21/usr/sbin/munin00:25:171
1908199476,6cyclictest8767-21/usr/sbin/munin19:55:161
1908199470,11cyclictest16767-21sensors20:10:261
1908099476,5cyclictest9-21ksoftirqd/020:30:120
19080994740,4cyclictest5665-21latency_hist00:20:000
19080994717,8cyclictest9-21ksoftirqd/021:10:120
19083994627,2cyclictest41-21ksoftirqd/322:05:283
19083994614,7cyclictest41-21ksoftirqd/300:15:003
1908199465,6cyclictest17828-21grep20:15:131
19081994611,4cyclictest25-21ksoftirqd/123:01:081
1908099466,9cyclictest9-21ksoftirqd/000:25:250
1908399459,8cyclictest41-21ksoftirqd/323:55:473
1908399455,3cyclictest121rcu_preempt19:20:173
19083994514,2cyclictest41-21ksoftirqd/323:50:033
1908199457,6cyclictest25561-21sshd21:36:411
1908099452,6cyclictest9-21ksoftirqd/019:10:250
1908099452,10cyclictest9-21ksoftirqd/021:50:160
1908399445,2cyclictest121rcu_preempt22:40:203
19083994431,5cyclictest41-21ksoftirqd/320:55:003
19083994416,4cyclictest41-21ksoftirqd/321:55:213
19083994415,4cyclictest41-21ksoftirqd/322:30:233
1908199445,5cyclictest261072sleep121:40:141
19081994437,4cyclictest11390-21grep23:25:001
1908199440,15cyclictest29283-21chrt20:38:561
1908099443,5cyclictest9-21ksoftirqd/021:30:000
1908099442,6cyclictest9-21ksoftirqd/023:30:150
1908099442,6cyclictest9-21ksoftirqd/000:10:000
1908099442,5cyclictest9-21ksoftirqd/020:06:020
1908099440,8cyclictest101ktimersoftd/021:50:000
1908399433,3cyclictest121rcu_preempt19:40:193
19083994331,9cyclictest41-21ksoftirqd/323:20:193
19083994316,6cyclictest41-21ksoftirqd/322:35:133
1908199437,7cyclictest26168-21cstates23:55:151
1908199435,5cyclictest10602-21egrep20:00:121
1908199431,10cyclictest18614-21seq21:23:521
1908099436,4cyclictest9-21ksoftirqd/019:50:200
1908099435,5cyclictest9-21ksoftirqd/021:05:230
1908099432,5cyclictest9-21ksoftirqd/023:51:540
1908099430,5cyclictest101ktimersoftd/023:45:190
139391430,0ptp4l401ktimersoftd/321:10:173
1908399428,7cyclictest41-21ksoftirqd/323:50:013
19083994213,7cyclictest41-21ksoftirqd/320:15:163
1908099424,4cyclictest9-21ksoftirqd/023:55:240
1908099422,6cyclictest9-21ksoftirqd/020:25:220
1908099422,5cyclictest9-21ksoftirqd/022:00:240
139391420,0ptp4l401ktimersoftd/300:15:163
1908399417,4cyclictest41-21ksoftirqd/319:30:233
1908399415,3cyclictest41-21ksoftirqd/323:30:273
19083994137,2cyclictest23620-21sh19:20:003
1908199414,5cyclictest32443-21uptime00:05:261
1908099417,4cyclictest9-21ksoftirqd/000:23:580
1908099414,5cyclictest9-21ksoftirqd/019:20:170
19080994136,3cyclictest111rcuc/020:45:130
139391410,1ptp4l401ktimersoftd/322:59:093
1908399404,3cyclictest121rcu_preempt21:05:253
19083994010,7cyclictest41-21ksoftirqd/321:00:003
1908399400,2cyclictest121rcu_preempt20:20:223
1908199406,7cyclictest25-21ksoftirqd/100:30:271
19081994011,7cyclictest25-21ksoftirqd/100:11:061
1908199401,11cyclictest30546-21chrt19:32:291
1908099404,5cyclictest9-21ksoftirqd/021:30:190
1908099403,5cyclictest9-21ksoftirqd/023:05:160
1908099401,6cyclictest9-21ksoftirqd/021:40:000
1908099400,6cyclictest9-21ksoftirqd/021:55:170
1908399398,4cyclictest41-21ksoftirqd/321:50:013
1908399392,3cyclictest41-21ksoftirqd/323:35:123
19083993922,9cyclictest41-21ksoftirqd/320:35:283
1908199397,5cyclictest25-21ksoftirqd/119:44:391
1908199395,6cyclictest25-21ksoftirqd/100:21:401
1908099395,3cyclictest9-21ksoftirqd/020:00:120
1908099394,4cyclictest9-21ksoftirqd/020:10:230
1908099393,6cyclictest9-21ksoftirqd/019:25:130
1908099390,5cyclictest9-21ksoftirqd/022:35:160
1908099390,5cyclictest101ktimersoftd/022:05:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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