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2026-06-03 - 10:54
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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 Jun 03, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
49252205172,22sleep20-21swapper/219:09:572
46972205174,21sleep10-21swapper/119:06:591
47462203170,22sleep30-21swapper/319:07:373
47432201168,22sleep00-21swapper/019:07:340
139391960,3ptp4l522499cyclictest19:20:513
5223997229,6cyclictest33-21ksoftirqd/222:00:182
139391650,0ptp4l401ktimersoftd/322:07:293
5223996329,6cyclictest33-21ksoftirqd/222:25:002
5223996327,6cyclictest33-21ksoftirqd/220:05:002
5223996227,5cyclictest33-21ksoftirqd/220:35:192
5223996226,6cyclictest33-21ksoftirqd/200:00:142
5223996226,5cyclictest33-21ksoftirqd/200:20:192
139391620,1ptp4l401ktimersoftd/300:39:543
5223996130,3cyclictest33-21ksoftirqd/223:30:142
5223996129,4cyclictest33-21ksoftirqd/219:45:192
5223996127,4cyclictest33-21ksoftirqd/221:35:212
5223996126,6cyclictest33-21ksoftirqd/200:10:222
5223996126,6cyclictest33-21ksoftirqd/200:10:222
157032610,4sleep125-21ksoftirqd/119:40:201
139391610,10ptp4l401ktimersoftd/319:14:443
139391610,0ptp4l401ktimersoftd/300:33:123
5223996028,4cyclictest33-21ksoftirqd/221:05:002
5223996027,3cyclictest33-21ksoftirqd/219:55:012
5223996026,9cyclictest33-21ksoftirqd/219:35:002
5223996025,5cyclictest33-21ksoftirqd/221:50:002
5223996022,5cyclictest33-21ksoftirqd/223:45:002
522399596,3cyclictest33-21ksoftirqd/222:35:002
5223995927,6cyclictest33-21ksoftirqd/222:05:142
5223995924,6cyclictest33-21ksoftirqd/221:05:142
5223995828,6cyclictest33-21ksoftirqd/221:50:262
5223995826,4cyclictest33-21ksoftirqd/221:00:012
5223995825,5cyclictest33-21ksoftirqd/223:50:272
5223995820,3cyclictest33-21ksoftirqd/200:26:382
522399573,7cyclictest33-21ksoftirqd/200:20:002
5223995726,7cyclictest33-21ksoftirqd/200:05:302
5223995726,5cyclictest33-21ksoftirqd/200:35:142
5223995724,6cyclictest33-21ksoftirqd/222:42:302
5223995724,6cyclictest33-21ksoftirqd/221:10:142
5223995722,10cyclictest33-21ksoftirqd/222:50:262
5223995721,11cyclictest33-21ksoftirqd/220:05:282
5223995628,8cyclictest33-21ksoftirqd/223:45:152
5223995625,4cyclictest33-21ksoftirqd/223:18:262
5223995624,7cyclictest33-21ksoftirqd/220:10:132
5223995624,5cyclictest33-21ksoftirqd/219:55:192
5223995623,9cyclictest33-21ksoftirqd/221:20:152
5223995623,5cyclictest33-21ksoftirqd/223:25:222
5223995623,5cyclictest33-21ksoftirqd/221:30:292
5223995622,4cyclictest33-21ksoftirqd/222:55:282
245702560,6sleep2522399cyclictest22:15:172
156602560,2sleep20-21swapper/223:05:012
5223995529,4cyclictest33-21ksoftirqd/222:35:172
5223995527,3cyclictest33-21ksoftirqd/223:58:062
5223995527,3cyclictest33-21ksoftirqd/220:23:082
5223995524,4cyclictest33-21ksoftirqd/222:45:242
5223995524,4cyclictest33-21ksoftirqd/219:40:102
5223995522,5cyclictest33-21ksoftirqd/223:20:142
5223995521,6cyclictest33-21ksoftirqd/220:20:002
5223995521,6cyclictest33-21ksoftirqd/219:10:252
5223995519,9cyclictest33-21ksoftirqd/220:30:002
5223995425,8cyclictest33-21ksoftirqd/222:10:182
5223995418,4cyclictest33-21ksoftirqd/220:15:112
5223995325,4cyclictest33-21ksoftirqd/200:30:272
5223995322,9cyclictest33-21ksoftirqd/222:00:012
5223995321,9cyclictest33-21ksoftirqd/220:30:232
5223995224,4cyclictest33-21ksoftirqd/221:43:482
5223995223,7cyclictest33-21ksoftirqd/223:05:252
5223995223,4cyclictest33-21ksoftirqd/220:45:212
5223995220,9cyclictest33-21ksoftirqd/221:25:202
522399507,3cyclictest33-21ksoftirqd/222:25:142
5223995020,8cyclictest33-21ksoftirqd/219:20:212
5223995017,9cyclictest33-21ksoftirqd/223:35:152
5223995017,5cyclictest33-21ksoftirqd/220:40:142
29662490,3sleep30-21swapper/321:30:293
139391490,1ptp4l391rcuc/321:42:313
5223994822,3cyclictest33-21ksoftirqd/220:50:222
5222994817,4cyclictest25-21ksoftirqd/120:35:211
5223994731,4cyclictest33-21ksoftirqd/221:15:192
5223994716,9cyclictest33-21ksoftirqd/219:40:002
5222994719,4cyclictest25-21ksoftirqd/122:44:591
139391460,0ptp4l401ktimersoftd/321:05:443
5224994540,3cyclictest41-21ksoftirqd/321:20:003
522399455,5cyclictest33-21ksoftirqd/219:30:002
5222994438,3cyclictest17792-21cron20:55:001
5222994315,6cyclictest25-21ksoftirqd/119:10:211
139391430,0ptp4l401ktimersoftd/323:10:353
139391430,0ptp4l401ktimersoftd/319:47:203
522399421,6cyclictest33-21ksoftirqd/223:10:142
522299427,4cyclictest25-21ksoftirqd/121:00:261
522299426,4cyclictest25-21ksoftirqd/120:05:281
522299426,3cyclictest25-21ksoftirqd/121:40:151
522299426,3cyclictest25-21ksoftirqd/119:30:191
522299421,9cyclictest25-21ksoftirqd/121:15:221
5222994217,7cyclictest25-21ksoftirqd/122:50:271
5222994216,7cyclictest25-21ksoftirqd/121:10:251
5222994213,3cyclictest25-21ksoftirqd/119:27:521
139391420,0ptp4l401ktimersoftd/323:57:383
522399413,5cyclictest7742-21sshd19:16:562
522299411,4cyclictest25-21ksoftirqd/120:30:281
5222994111,6cyclictest25-21ksoftirqd/123:38:481
5222994111,4cyclictest25-21ksoftirqd/123:07:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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