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2026-06-25 - 12:25
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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 Thu Jun 25, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2937521680,5sleep029385-21rm19:40:540
1916321540,7sleep32733899cyclictest19:36:323
578981100,85rtkit-daemon0-21swapper/119:06:011
26708210961,15sleep00-21swapper/019:08:210
1394919168,15phc2sys0-21swapper/319:09:403
2652128865,15sleep20-21swapper/219:05:552
139391780,1ptp4l391rcuc/322:40:133
319682640,5sleep031952-21execl19:19:030
30972640,2sleep00-21swapper/019:37:490
77572630,1sleep20-21swapper/223:00:252
320282630,6sleep1231rcuc/119:19:371
89762620,5sleep32733899cyclictest19:41:153
27336996129,4cyclictest25-21ksoftirqd/119:38:251
27336996123,9cyclictest25-21ksoftirqd/119:41:041
220162610,4sleep222031-21spawn19:32:052
206362610,6sleep220458-21multi.sh19:41:302
27336996028,4cyclictest25-21ksoftirqd/123:05:171
163972570,3sleep2321ktimersoftd/223:20:152
139391570,1ptp4l391rcuc/320:00:163
319542560,5sleep22733799cyclictest19:18:522
27336995620,11cyclictest25-21ksoftirqd/121:25:011
27336995526,3cyclictest25-21ksoftirqd/119:33:131
27336995525,7cyclictest25-21ksoftirqd/100:10:001
51412530,1sleep20-21swapper/219:38:202
27336995323,7cyclictest25-21ksoftirqd/123:40:011
139391530,0ptp4l391rcuc/321:36:043
2733899524,7cyclictest0-21swapper/321:00:203
27336995226,6cyclictest25-21ksoftirqd/122:00:191
27336995225,3cyclictest25-21ksoftirqd/123:20:001
2733899513,45cyclictest31889-21execl19:18:453
27336995123,6cyclictest25-21ksoftirqd/100:35:001
27336995123,6cyclictest25-21ksoftirqd/100:35:001
27336995121,4cyclictest25-21ksoftirqd/123:10:241
27336995116,7cyclictest25-21ksoftirqd/121:50:011
134491510,2getstats0-21swapper/320:55:143
27336995023,7cyclictest25-21ksoftirqd/121:15:211
27336995018,3cyclictest25-21ksoftirqd/123:40:271
2733899490,18cyclictest26831-21apt-get20:20:123
27336994921,3cyclictest25-21ksoftirqd/123:30:221
27336994920,7cyclictest25-21ksoftirqd/120:50:191
27336994920,3cyclictest25-21ksoftirqd/121:41:461
27336994919,4cyclictest25-21ksoftirqd/120:20:261
27336994917,4cyclictest25-21ksoftirqd/100:25:251
27336994916,4cyclictest25-21ksoftirqd/120:05:251
315222480,2sleep30-21swapper/323:50:243
27336994820,3cyclictest25-21ksoftirqd/120:30:141
27336994819,7cyclictest25-21ksoftirqd/119:50:261
2733899470,9cyclictest9556-21irqstats23:05:173
27336994718,3cyclictest25-21ksoftirqd/119:24:041
27336994716,8cyclictest25-21ksoftirqd/122:35:221
27336994716,4cyclictest25-21ksoftirqd/122:25:231
27336994710,8cyclictest25-21ksoftirqd/119:25:221
2733899460,17cyclictest1962-21perl22:50:173
27336994618,4cyclictest25-21ksoftirqd/122:40:181
27336994618,3cyclictest25-21ksoftirqd/121:28:521
27336994616,4cyclictest25-21ksoftirqd/120:25:241
27336994612,8cyclictest25-21ksoftirqd/100:20:131
2733899455,36cyclictest2178-21fstime19:25:273
2733899452,8cyclictest0-21swapper/321:06:403
27336994529,3cyclictest25-21ksoftirqd/120:40:241
27336994520,6cyclictest25-21ksoftirqd/120:35:181
27336994518,4cyclictest25-21ksoftirqd/100:12:241
27336994515,8cyclictest25-21ksoftirqd/100:00:001
27336994514,4cyclictest25-21ksoftirqd/121:55:151
27336994511,4cyclictest25-21ksoftirqd/122:20:161
27336994511,4cyclictest25-21ksoftirqd/121:30:261
27336994511,4cyclictest25-21ksoftirqd/100:15:231
139391450,0ptp4l401ktimersoftd/321:46:393
2733899440,16cyclictest12448-21cpuspeed00:20:123
2733699449,4cyclictest25-21ksoftirqd/120:10:231
2733699448,8cyclictest25-21ksoftirqd/120:00:191
2733699447,8cyclictest25-21ksoftirqd/120:45:161
2733699446,8cyclictest25-21ksoftirqd/120:15:261
27336994418,6cyclictest25-21ksoftirqd/122:55:241
27336994417,7cyclictest25-21ksoftirqd/121:50:181
27336994416,4cyclictest25-21ksoftirqd/122:13:161
27336994416,4cyclictest25-21ksoftirqd/122:05:211
27336994416,3cyclictest25-21ksoftirqd/119:11:551
27336994415,4cyclictest25-21ksoftirqd/100:03:441
27336994415,3cyclictest25-21ksoftirqd/123:02:261
27336994414,7cyclictest25-21ksoftirqd/121:05:121
27336994413,4cyclictest25-21ksoftirqd/122:30:371
27336994412,9cyclictest25-21ksoftirqd/121:00:261
27336994411,3cyclictest25-21ksoftirqd/123:29:451
2733699436,8cyclictest25-21ksoftirqd/123:20:261
27336994313,7cyclictest25-21ksoftirqd/122:50:011
27336994311,3cyclictest25-21ksoftirqd/121:11:571
27336994310,3cyclictest25-21ksoftirqd/100:35:261
139391430,0ptp4l401ktimersoftd/320:50:023
139391430,0ptp4l401ktimersoftd/320:43:033
139391430,0ptp4l401ktimersoftd/300:34:433
139391430,0ptp4l401ktimersoftd/300:34:433
2733899425,6cyclictest96332sleep300:13:513
2733899422,9cyclictest23552-21sshd22:25:363
2733699429,9cyclictest25-21ksoftirqd/119:45:191
2733699427,7cyclictest25-21ksoftirqd/121:35:261
2733699426,8cyclictest25-21ksoftirqd/120:55:131
27336994235,3cyclictest25-21ksoftirqd/122:20:001
2733699421,9cyclictest25-21ksoftirqd/119:55:191
2733599420,2cyclictest121rcu_preempt20:50:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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