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2025-04-02 - 06:54
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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 rack6slot0.osadl.org (updated Wed Apr 02, 2025 01:00:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3858699292260,10cyclictest15984-21CPU1
3858699267263,2cyclictest0-21swapper/119:14:191
3858699267263,2cyclictest0-21swapper/119:14:191
3858699219206,10cyclictest15984-21CPU1
3858699219206,10cyclictest15984-21CPU1
3858699219202,8cyclictest33915-21NetworkChangeNo20:00:201
3858699219202,8cyclictest33915-21NetworkChangeNo20:00:201
38617992138,178cyclictest0-21swapper/2619:30:2119
3858699213200,7cyclictest0-21swapper/122:35:191
3858699213200,7cyclictest0-21swapper/122:35:191
3858699207186,13cyclictest37930-21sshd21:15:181
3858699207186,13cyclictest37930-21sshd21:15:181
3858699207186,13cyclictest37930-21sshd21:15:181
3860599200195,3cyclictest0-21swapper/1522:55:227
3860599200195,3cyclictest0-21swapper/1522:55:217
3860599200195,3cyclictest0-21swapper/1522:55:217
38600992002,78cyclictest4906-21CPU2
38600992002,78cyclictest4906-21CPU2
3858699198187,8cyclictest0-21swapper/100:03:001
3858699198187,8cyclictest0-21swapper/100:03:001
3858699197181,13cyclictest15983-21CPU1
3858699197181,13cyclictest15983-21CPU1
3858699195187,3cyclictest1293-21jbd2/sdb1-820:17:121
3858699195187,3cyclictest1293-21jbd2/sdb1-820:17:121
3859899194150,37cyclictest0-21swapper/922:47:2339
3859899194150,37cyclictest0-21swapper/922:47:2339
3859099193188,3cyclictest0-21swapper/422:10:1234
3859099193188,3cyclictest0-21swapper/422:10:1134
3859099193188,3cyclictest0-21swapper/422:10:1134
3860099191154,33cyclictest0-21swapper/1022:39:522
3860099191154,33cyclictest0-21swapper/1022:39:522
3858699188182,4cyclictest0-21swapper/123:03:501
3858699188182,4cyclictest0-21swapper/123:03:501
3862299187164,17cyclictest0-21swapper/2920:43:2222
3862299187164,17cyclictest0-21swapper/2920:43:2222
3863199186104,72cyclictest30989-21NetworkChangeNo22:55:1831
3863199186104,72cyclictest30989-21NetworkChangeNo22:55:1831
3863199186104,72cyclictest30989-21NetworkChangeNo22:55:1831
386159918680,89cyclictest10313-21inotify_reader22:30:1417
386159918680,89cyclictest10313-21inotify_reader22:30:1417
38631991854,65cyclictest11442-21inotify_reader20:20:1931
38631991854,65cyclictest11442-21inotify_reader20:20:1931
3860899185181,2cyclictest0-21swapper/1822:10:0910
3860899185181,2cyclictest0-21swapper/1822:10:0910
3860899185181,2cyclictest0-21swapper/1822:10:0910
3860099185123,58cyclictest24344-21inotify_reader19:35:192
3860099185123,58cyclictest24344-21inotify_reader19:35:192
3858699185181,2cyclictest0-21swapper/122:51:421
3858699185181,2cyclictest0-21swapper/122:51:421
3862499184176,5cyclictest0-21swapper/3120:25:0025
3862499184176,5cyclictest0-21swapper/3120:25:0025
3862499184172,6cyclictest0-21swapper/3121:26:4725
3862499184172,6cyclictest0-21swapper/3121:26:4725
386039918396,84cyclictest0-21swapper/1323:07:465
386039918396,84cyclictest0-21swapper/1323:07:465
3860099183125,45cyclictest0-21swapper/1020:50:542
3860099183125,45cyclictest0-21swapper/1020:50:542
3858699183173,7cyclictest4898-21qemu-system-x8623:09:251
3858699183173,7cyclictest4898-21qemu-system-x8623:09:251
3858699183172,9cyclictest0-21swapper/122:55:521
3858699183172,9cyclictest0-21swapper/122:55:521
3858699183172,9cyclictest0-21swapper/122:55:521
3860399182142,25cyclictest0-21swapper/1322:00:295
3860399182142,25cyclictest0-21swapper/1322:00:295
3858699182177,3cyclictest0-21swapper/122:25:001
3858699182177,3cyclictest0-21swapper/122:25:001
3858699182176,5cyclictest0-21swapper/123:30:541
3858699182176,5cyclictest0-21swapper/123:30:531
3858699182176,5cyclictest0-21swapper/123:30:531
3858699182175,5cyclictest0-21swapper/122:29:121
3858699182175,5cyclictest0-21swapper/122:29:121
3858699182174,5cyclictest15982-21CPU1
3858699182174,5cyclictest15982-21CPU1
38631991812,98cyclictest9327-21CPU31
38631991812,98cyclictest9327-21CPU31
38631991812,98cyclictest9327-21CPU31
3858699181170,7cyclictest0-21swapper/121:27:091
3858699181170,7cyclictest0-21swapper/121:27:091
38600991791,171cyclictest15979-21CPU2
38600991791,171cyclictest15979-21CPU2
3858699179166,9cyclictest0-21swapper/119:40:201
3858699179166,9cyclictest0-21swapper/119:40:201
386159917813,87cyclictest0-21swapper/2420:35:1917
386159917813,87cyclictest0-21swapper/2420:35:1917
3858699178157,11cyclictest171rcu_preempt21:35:481
3858699178157,11cyclictest171rcu_preempt21:35:471
3858699178157,11cyclictest171rcu_preempt21:35:471
3862299177157,16cyclictest0-21swapper/2900:39:4922
3862299177157,16cyclictest0-21swapper/2900:39:4822
3862299177157,16cyclictest0-21swapper/2900:39:4822
38603991771,169cyclictest0-21swapper/1322:40:185
38603991771,169cyclictest0-21swapper/1322:40:185
385899917726,149cyclictest0-21swapper/319:25:5223
3858699177170,5cyclictest0-21swapper/100:14:381
3858699177170,5cyclictest0-21swapper/100:14:381
3858699177165,10cyclictest0-21swapper/100:05:111
3858699177165,10cyclictest0-21swapper/100:05:111
3858699177165,10cyclictest0-21swapper/100:05:111
3858699177151,23cyclictest4909-21CPU1
3858699177151,23cyclictest4909-21CPU1
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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