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2026-08-30 - 05:43
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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 rackdslot4.osadl.org (updated Sun Aug 30, 2026 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591224162,50phc2sys0-21swapper/319:07:003
321662223158,22sleep10-21swapper/119:06:231
321102202168,23sleep20-21swapper/219:05:402
322262200166,22sleep00-21swapper/019:07:060
2450121800,3sleep23274499cyclictest22:05:242
2233621500,6sleep33274599cyclictest20:55:253
232412680,2sleep223245-21cpuspeed_turbos21:00:132
157412630,5sleep015742-21sendmail23:59:590
1385915842,9phc2sys0-21swapper/319:10:013
138491560,1ptp4l391rcuc/320:50:263
138491540,1ptp4l401ktimersoftd/320:19:423
241592500,3sleep30-21swapper/300:15:153
3274599462,41cyclictest15424-21cron21:50:003
3245124532,7sleep10-21swapper/119:10:011
3274299441,40cyclictest15425-21cron21:50:000
134991430,7getstats0-21swapper/319:21:433
32743993934,3cyclictest25-21ksoftirqd/123:10:001
32744993832,4cyclictest33-21ksoftirqd/220:33:372
32744993831,4cyclictest33-21ksoftirqd/222:25:582
3274499380,2cyclictest0-21swapper/220:40:232
32743993834,2cyclictest25-21ksoftirqd/100:00:001
32743993831,5cyclictest25-21ksoftirqd/121:57:521
3274599378,28cyclictest15092-21kworker/3:120:40:433
32745993731,4cyclictest41-21ksoftirqd/320:10:363
32745993731,4cyclictest41-21ksoftirqd/319:19:453
32744993731,4cyclictest33-21ksoftirqd/222:50:002
32744993731,4cyclictest33-21ksoftirqd/222:32:402
32743993732,3cyclictest25-21ksoftirqd/123:25:191
32743993732,3cyclictest25-21ksoftirqd/100:02:261
32743993726,9cyclictest25-21ksoftirqd/121:50:191
32742993731,4cyclictest9-21ksoftirqd/019:37:190
3274599363,17cyclictest5595-21cat20:25:003
32745993630,4cyclictest41-21ksoftirqd/323:14:173
32745993630,4cyclictest41-21ksoftirqd/321:43:273
32744993630,4cyclictest33-21ksoftirqd/221:37:002
32744993630,4cyclictest33-21ksoftirqd/219:54:582
32743993630,4cyclictest25-21ksoftirqd/122:43:261
32743993630,4cyclictest25-21ksoftirqd/121:08:141
32743993630,4cyclictest25-21ksoftirqd/119:24:281
32743993630,3cyclictest25-21ksoftirqd/123:25:001
32743993630,3cyclictest25-21ksoftirqd/123:05:001
32742993630,4cyclictest9-21ksoftirqd/023:27:300
32742993630,4cyclictest9-21ksoftirqd/023:16:150
32742993630,4cyclictest9-21ksoftirqd/020:02:340
138491360,0ptp4l401ktimersoftd/323:50:193
138491360,0ptp4l401ktimersoftd/323:30:253
32745993529,4cyclictest41-21ksoftirqd/323:36:393
32745993529,4cyclictest41-21ksoftirqd/320:07:553
32744993529,4cyclictest33-21ksoftirqd/221:52:122
32744993529,4cyclictest33-21ksoftirqd/221:25:082
32744993529,4cyclictest33-21ksoftirqd/219:39:542
32743993531,3cyclictest25-21ksoftirqd/122:25:151
32743993530,3cyclictest25-21ksoftirqd/122:05:191
32743993530,3cyclictest25-21ksoftirqd/119:55:181
32743993529,4cyclictest25-21ksoftirqd/123:53:591
32743993529,4cyclictest25-21ksoftirqd/123:36:131
32743993529,4cyclictest25-21ksoftirqd/120:56:231
32743993529,3cyclictest25-21ksoftirqd/122:35:131
32743993524,9cyclictest25-21ksoftirqd/100:37:111
32742993530,4cyclictest9-21ksoftirqd/019:45:010
32742993529,4cyclictest9-21ksoftirqd/023:23:250
32742993529,4cyclictest9-21ksoftirqd/023:11:180
32742993529,4cyclictest9-21ksoftirqd/021:52:430
32742993529,4cyclictest9-21ksoftirqd/021:31:240
32742993529,4cyclictest9-21ksoftirqd/020:46:430
32742993529,4cyclictest9-21ksoftirqd/020:07:200
32745993429,3cyclictest41-21ksoftirqd/322:44:053
32745993429,3cyclictest41-21ksoftirqd/322:03:573
32745993429,3cyclictest41-21ksoftirqd/321:10:003
32745993428,4cyclictest41-21ksoftirqd/323:16:413
32745993428,4cyclictest41-21ksoftirqd/322:21:493
32745993428,4cyclictest41-21ksoftirqd/322:10:473
32745993428,4cyclictest41-21ksoftirqd/321:52:583
32745993428,4cyclictest41-21ksoftirqd/320:37:153
32745993428,4cyclictest41-21ksoftirqd/319:54:243
32745993425,7cyclictest41-21ksoftirqd/321:01:073
32744993429,3cyclictest33-21ksoftirqd/223:45:112
32744993428,4cyclictest33-21ksoftirqd/223:55:402
32744993428,4cyclictest33-21ksoftirqd/222:42:472
32744993428,4cyclictest33-21ksoftirqd/222:04:042
32744993428,4cyclictest33-21ksoftirqd/220:49:502
32744993428,4cyclictest33-21ksoftirqd/200:27:022
32743993430,3cyclictest25-21ksoftirqd/120:35:161
32743993430,2cyclictest25-21ksoftirqd/120:20:001
32743993429,3cyclictest25-21ksoftirqd/121:30:011
32743993429,3cyclictest25-21ksoftirqd/120:25:131
32743993429,3cyclictest25-21ksoftirqd/120:05:181
32743993429,3cyclictest25-21ksoftirqd/119:49:421
32743993429,3cyclictest25-21ksoftirqd/119:19:591
32743993428,4cyclictest25-21ksoftirqd/123:19:321
32743993428,4cyclictest25-21ksoftirqd/120:52:581
32743993428,3cyclictest25-21ksoftirqd/119:40:001
32743993428,3cyclictest25-21ksoftirqd/119:35:011
32742993429,3cyclictest9-21ksoftirqd/021:00:110
32742993428,4cyclictest9-21ksoftirqd/022:43:320
32742993428,4cyclictest9-21ksoftirqd/020:14:300
32742993428,4cyclictest9-21ksoftirqd/019:25:590
32742993428,4cyclictest9-21ksoftirqd/000:06:220
32742993428,3cyclictest9-21ksoftirqd/020:41:070
138491340,0ptp4l401ktimersoftd/322:58:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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