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2026-08-05 - 11:38
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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 Wed Aug 05, 2026 00:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
290232234170,52sleep20-21swapper/219:08:062
290292205172,22sleep30-21swapper/319:08:113
288832205172,22sleep10-21swapper/119:06:161
288822205172,22sleep00-21swapper/019:06:150
29465997437,2cyclictest41-21ksoftirqd/321:10:253
29465996435,6cyclictest41-21ksoftirqd/321:35:273
104272620,5sleep110429-21mailstats19:35:241
108822590,4sleep110884-21grep00:05:311
29465995828,3cyclictest41-21ksoftirqd/323:25:223
29465995728,7cyclictest41-21ksoftirqd/323:40:143
29465995629,3cyclictest41-21ksoftirqd/320:30:203
29465995628,4cyclictest41-21ksoftirqd/323:00:283
29465995626,4cyclictest41-21ksoftirqd/319:20:223
29465995625,3cyclictest41-21ksoftirqd/323:30:193
29465995528,7cyclictest41-21ksoftirqd/300:40:013
29465995524,3cyclictest41-21ksoftirqd/322:15:003
324902540,2sleep20-21swapper/223:45:182
29465995428,6cyclictest41-21ksoftirqd/321:25:213
29465995426,7cyclictest41-21ksoftirqd/320:05:163
210202540,2sleep20-21swapper/221:05:222
29465995323,8cyclictest41-21ksoftirqd/320:20:173
29465995321,4cyclictest41-21ksoftirqd/322:55:013
228842530,2sleep20-21swapper/223:25:152
29465995227,7cyclictest41-21ksoftirqd/320:15:243
29465995222,9cyclictest41-21ksoftirqd/322:25:183
29465995222,6cyclictest41-21ksoftirqd/320:55:223
29465995221,3cyclictest41-21ksoftirqd/320:45:193
29465995220,4cyclictest41-21ksoftirqd/322:30:193
29465995218,4cyclictest41-21ksoftirqd/320:35:233
29465995218,10cyclictest41-21ksoftirqd/321:30:133
2946599519,2cyclictest131rcu_sched22:04:043
29465995124,3cyclictest41-21ksoftirqd/319:30:013
29465995123,7cyclictest41-21ksoftirqd/319:40:003
29465995123,4cyclictest41-21ksoftirqd/321:20:243
29465995123,3cyclictest41-21ksoftirqd/320:25:183
29465995121,7cyclictest41-21ksoftirqd/321:20:013
29465995120,8cyclictest41-21ksoftirqd/323:20:013
29465995119,4cyclictest41-21ksoftirqd/322:05:163
29465995118,4cyclictest41-21ksoftirqd/320:40:283
29465995116,4cyclictest41-21ksoftirqd/319:50:143
29465995115,9cyclictest41-21ksoftirqd/321:55:193
29465995024,7cyclictest41-21ksoftirqd/320:50:153
29465995019,3cyclictest41-21ksoftirqd/323:20:223
29465995019,3cyclictest41-21ksoftirqd/323:20:223
29465995018,3cyclictest41-21ksoftirqd/300:20:253
29465995015,8cyclictest41-21ksoftirqd/319:15:203
29465994936,2cyclictest41-21ksoftirqd/300:05:303
29465994922,7cyclictest41-21ksoftirqd/323:10:253
29465994922,3cyclictest41-21ksoftirqd/321:45:253
29465994918,3cyclictest41-21ksoftirqd/319:55:243
29465994918,3cyclictest41-21ksoftirqd/319:10:223
29465994918,3cyclictest41-21ksoftirqd/300:00:133
29465994917,8cyclictest41-21ksoftirqd/322:55:173
29465994915,8cyclictest41-21ksoftirqd/300:15:003
134491490,1getstats0-21swapper/323:35:103
29465994821,3cyclictest41-21ksoftirqd/322:50:013
29465994818,3cyclictest41-21ksoftirqd/300:15:133
29465994814,10cyclictest41-21ksoftirqd/323:55:133
29465994813,9cyclictest41-21ksoftirqd/323:45:143
29465994811,4cyclictest41-21ksoftirqd/322:15:223
29465994811,10cyclictest41-21ksoftirqd/321:55:003
29465994716,8cyclictest41-21ksoftirqd/319:30:143
139391470,0ptp4l401ktimersoftd/323:50:033
29465994634,3cyclictest41-21ksoftirqd/319:45:283
29465994616,10cyclictest41-21ksoftirqd/321:05:163
29465994613,9cyclictest41-21ksoftirqd/322:40:143
29465994610,4cyclictest41-21ksoftirqd/321:00:253
2946599460,2cyclictest41-21ksoftirqd/322:25:003
2946599455,2cyclictest41-21ksoftirqd/319:45:013
2946599453,2cyclictest41-21ksoftirqd/320:10:243
2946599452,3cyclictest41-21ksoftirqd/321:40:153
29465994412,3cyclictest41-21ksoftirqd/300:25:223
2946599434,2cyclictest41-21ksoftirqd/323:05:263
2946599419,9cyclictest41-21ksoftirqd/320:00:183
2946599401,2cyclictest121rcu_preempt22:35:223
29465994010,9cyclictest41-21ksoftirqd/300:30:213
57898380,6rtkit-daemon0-21swapper/120:56:281
29464993832,4cyclictest33-21ksoftirqd/221:47:522
29463993833,3cyclictest25-21ksoftirqd/121:30:001
29463993832,4cyclictest25-21ksoftirqd/122:06:061
29463993731,4cyclictest25-21ksoftirqd/120:34:211
29463993731,3cyclictest25-21ksoftirqd/121:47:591
29462993732,3cyclictest9-21ksoftirqd/022:30:010
57898360,6rtkit-daemon0-21swapper/120:09:251
29464993631,3cyclictest33-21ksoftirqd/219:31:162
29464993629,4cyclictest33-21ksoftirqd/200:35:122
29464993611,24cyclictest9912-21kworker/2:220:50:242
29463993632,2cyclictest25-21ksoftirqd/119:55:001
29463993631,3cyclictest25-21ksoftirqd/121:10:141
29463993631,3cyclictest25-21ksoftirqd/120:00:431
57898350,2rtkit-daemon0-21swapper/123:02:201
29464993529,4cyclictest33-21ksoftirqd/219:42:592
29464993528,4cyclictest33-21ksoftirqd/200:22:202
29464993527,6cyclictest33-21ksoftirqd/220:09:032
29464993527,5cyclictest33-21ksoftirqd/222:30:042
29463993530,3cyclictest25-21ksoftirqd/120:50:521
29463993529,4cyclictest25-21ksoftirqd/122:31:541
29463993529,4cyclictest25-21ksoftirqd/121:08:111
29463993529,4cyclictest25-21ksoftirqd/120:23:341
29463993529,4cyclictest25-21ksoftirqd/100:37:081
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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