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2025-11-03 - 09:42
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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 376 highest latencies:
System rackcslot2.osadl.org (updated Mon Nov 03, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
149127462,7sleep00-21swapper/019:03:230
140127056,9sleep10-21swapper/119:02:281
41872550,0sleep00-21swapper/021:32:460
2012993636,0cyclictest0-21swapper/120:26:211
2012992916,5cyclictest588-21gmain23:11:541
2011992810,1cyclictest16578-21kworker/u4:121:50:510
2012992620,5cyclictest24702-21apache222:41:401
2012992610,10cyclictest0-21swapper/121:18:271
2011992621,3cyclictest817-21apache200:14:180
2011992610,4cyclictest0-21swapper/023:03:440
2011992610,4cyclictest0-21swapper/023:03:440
201199260,13cyclictest0-21swapper/019:57:140
201299254,2cyclictest0-21swapper/100:17:071
201299254,16cyclictest28069-21kworker/u4:121:33:091
2012992520,3cyclictest24729-21apache222:15:191
2012992510,1cyclictest0-21swapper/100:12:081
2012992510,10cyclictest0-21swapper/121:54:291
201299250,5cyclictest0-21swapper/121:16:341
2011992525,0cyclictest0-21swapper/019:14:170
2011992518,4cyclictest0-21swapper/021:54:460
2011992510,11cyclictest0-21swapper/000:26:510
2012992424,0cyclictest0-21swapper/123:50:501
201199240,19cyclictest0-21swapper/022:12:060
585222310,1sleep10-21swapper/122:18:511
201299234,11cyclictest0-21swapper/122:47:091
2012992319,3cyclictest24729-21apache223:05:451
2012992319,3cyclictest24729-21apache223:05:451
201299231,2cyclictest0-21swapper/123:22:061
201299231,21cyclictest0-21swapper/123:42:211
2012992310,7cyclictest0-21swapper/122:05:321
201199237,10cyclictest0-21swapper/023:12:170
2011992310,0cyclictest0-21swapper/022:39:240
3222822210,0sleep00-21swapper/022:11:330
201299223,11cyclictest0-21swapper/100:07:131
201299221,18cyclictest17357-21apache_processe00:02:051
201299221,11cyclictest0-21swapper/119:22:161
2011992221,1cyclictest24702-21apache223:40:200
2011992220,1cyclictest3181-21latency23:42:130
2011992219,3cyclictest24702-21apache223:25:340
2011992217,2cyclictest81ktimersoftd/022:06:420
201199221,20cyclictest0-21swapper/023:57:380
201199220,4cyclictest26627-21df_inode22:47:070
420922110,0sleep10-21swapper/119:12:081
201299213,7cyclictest11459-21awk19:31:541
2012992119,1cyclictest24702-21apache223:20:071
2012992110,6cyclictest0-21swapper/119:37:071
2012992110,4cyclictest0-21swapper/120:57:101
201199214,10cyclictest0-21swapper/021:27:070
2011992119,1cyclictest0-21swapper/023:00:570
2011992113,4cyclictest21299-21ssh21:12:380
2011992110,9cyclictest0-21swapper/000:28:180
2011992110,4cyclictest0-21swapper/000:07:060
2960522010,8sleep129654-21rm22:07:131
201299205,11cyclictest0-21swapper/120:52:101
201299202,6cyclictest24702-21apache220:47:061
2012992019,1cyclictest0-21swapper/120:45:491
2012992019,0cyclictest2927-21sh22:57:521
2012992018,1cyclictest24729-21apache222:45:251
2012992018,1cyclictest19122-21idleruntime-cro19:51:531
2012992016,3cyclictest11808-21wget22:27:141
2012992011,6cyclictest21273-21ssh21:57:001
2012992010,9cyclictest0-21swapper/122:53:241
2012992010,9cyclictest0-21swapper/121:37:501
2012992010,6cyclictest0-21swapper/121:27:161
2012992010,6cyclictest0-21swapper/119:57:061
2012992010,5cyclictest0-21swapper/121:22:111
2012992010,4cyclictest0-21swapper/121:06:541
2012992010,0cyclictest0-21swapper/122:26:391
201299200,12cyclictest0-21swapper/122:32:091
201199207,6cyclictest0-21swapper/023:07:090
201199205,7cyclictest0-21swapper/023:47:110
201199204,3cyclictest0-21swapper/022:27:290
201199203,8cyclictest0-21swapper/021:37:120
201199202,10cyclictest0-21swapper/020:42:080
2011992012,3cyclictest0-21swapper/000:17:330
2011992011,5cyclictest97750irq/106-eth1-rx23:20:120
2011992010,9cyclictest0-21swapper/023:34:190
2011992010,6cyclictest0-21swapper/019:47:090
2011992010,2cyclictest0-21swapper/023:27:150
2011992010,2cyclictest0-21swapper/019:36:540
201199200,13cyclictest0-21swapper/020:47:070
201299198,9cyclictest2310-21apache_accesses20:32:061
201299196,7cyclictest24677-21apache221:07:051
2012991914,3cyclictest817-21apache223:54:031
2012991914,2cyclictest0-21swapper/123:38:011
2012991910,7cyclictest0-21swapper/123:29:261
2012991910,4cyclictest0-21swapper/119:42:071
2012991910,3cyclictest0-21swapper/123:12:031
2012991910,2cyclictest0-21swapper/100:31:541
201299190,16cyclictest4238-21/usr/sbin/munin20:37:091
201199191,10cyclictest0-21swapper/021:17:130
2011991910,5cyclictest0-21swapper/022:42:150
2011991910,4cyclictest0-21swapper/020:52:430
2011991910,2cyclictest0-21swapper/022:53:050
2011991910,2cyclictest0-21swapper/019:52:150
1595421910,0sleep10-21swapper/121:48:521
201299187,7cyclictest0-21swapper/123:32:151
201299184,7cyclictest3134-21apache_processe00:27:071
201299184,7cyclictest0-21swapper/123:57:061
2012991810,3cyclictest0-21swapper/100:22:101
201199187,5cyclictest0-21swapper/019:42:070
201199185,10cyclictest0-21swapper/022:22:130
201199184,7cyclictest0-21swapper/000:02:090
201199183,4cyclictest0-21swapper/020:02:120
201199183,14cyclictest0-21swapper/019:27:100
2011991814,3cyclictest24729-21apache221:05:220
2011991811,1cyclictest2009-21cyclictest20:33:100
2011991810,3cyclictest0-21swapper/022:17:060
2011991810,3cyclictest0-21swapper/000:31:560
2011991810,2cyclictest0-21swapper/021:07:440
201299175,7cyclictest10367-21hwlatdetect21:42:091
201299174,6cyclictest0-21swapper/119:07:111
2012991710,2cyclictest0-21swapper/120:12:051
201199175,8cyclictest0-21swapper/020:57:080
201199175,5cyclictest27628-21diskstats21:22:080
201199174,6cyclictest0-21swapper/021:57:060
201199174,6cyclictest0-21swapper/019:22:070
2011991710,4cyclictest0-21swapper/023:53:010
2011991710,3cyclictest0-21swapper/019:17:070
2011991710,0cyclictest0-21swapper/021:42:060
1713321710,0sleep00-21swapper/022:33:440
303962168,0sleep10-21swapper/120:18:541
2681221610,1sleep10-21swapper/120:11:391
201299162,8cyclictest0-21swapper/119:33:171
2012991610,4cyclictest0-21swapper/119:17:081
201199165,3cyclictest1163-21ntp_states20:27:130
201199163,9cyclictest0-21swapper/019:07:040
201199162,4cyclictest0-21swapper/020:39:430
201199162,10cyclictest0-21swapper/020:17:090
2011991610,3cyclictest0-21swapper/019:38:080
2011991610,2cyclictest0-21swapper/020:12:020
2084721510,1sleep10-21swapper/119:55:071
2012991510,3cyclictest0-21swapper/120:02:081
201299150,11cyclictest0-21swapper/120:27:101
2011991510,4cyclictest0-21swapper/020:09:200
201199135,4cyclictest0-21swapper/020:22:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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