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2026-05-03 - 14:02
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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 highest latencies:
System rackcslot2.osadl.org (updated Sun May 03, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1153626854,9sleep10-21swapper/119:07:061
319612670,0sleep00-21swapper/000:03:440
1131626749,9sleep00-21swapper/019:04:480
12192650,0sleep01220-21awk00:04:220
11902993623,13cyclictest0-21swapper/019:59:350
11903993434,0cyclictest0-21swapper/120:14:531
11903992926,1cyclictest0-21swapper/123:52:121
11903992810,18cyclictest0-21swapper/123:44:401
11903992810,12cyclictest0-21swapper/123:00:541
11902992828,0cyclictest0-21swapper/020:53:240
11902992726,0cyclictest7-21ksoftirqd/000:29:010
1190399261,23cyclictest8356-21kworker/1:020:34:371
11903992610,13cyclictest0-21swapper/122:50:381
11902992611,11cyclictest0-21swapper/022:35:230
1190299260,23cyclictest26720-21ssh21:49:550
1190299260,19cyclictest0-21swapper/023:29:220
11903992522,2cyclictest13717-21apache223:59:061
11903992521,2cyclictest231ktimersoftd/119:19:121
11903992510,0cyclictest0-21swapper/123:12:181
1190399250,17cyclictest0-21swapper/121:52:011
11902992511,5cyclictest13743-21apache223:11:470
11902992510,5cyclictest0-21swapper/023:28:030
11902992510,10cyclictest0-21swapper/021:15:170
1190399240,4cyclictest0-21swapper/100:37:521
11902992424,0cyclictest0-21swapper/021:45:010
11902992419,4cyclictest13743-21apache200:19:470
1190299241,6cyclictest0-21swapper/023:53:060
11902992415,8cyclictest0-21swapper/023:34:430
11902992410,5cyclictest0-21swapper/022:09:030
11902992410,5cyclictest0-21swapper/022:04:130
1190299240,1cyclictest16544-21ssh23:43:530
1190399233,19cyclictest0-21swapper/121:14:531
11903992319,3cyclictest13717-21apache221:41:181
11903992318,3cyclictest13743-21apache221:32:041
1190399231,4cyclictest0-21swapper/123:16:441
1190399231,21cyclictest10781-21apache_processe00:19:131
11903992310,6cyclictest0-21swapper/100:04:151
1190399230,0cyclictest0-21swapper/100:30:031
11902992310,7cyclictest0-21swapper/020:34:140
11902992310,6cyclictest0-21swapper/021:20:390
11902992310,3cyclictest0-21swapper/000:16:290
1190299230,0cyclictest0-21swapper/000:12:410
1190399222,19cyclictest25412-21kworker/1:219:41:551
11903992216,5cyclictest13743-21apache200:15:271
11903992210,5cyclictest0-21swapper/122:45:311
11903992210,0cyclictest5457-21cstates21:24:131
11902992214,5cyclictest0-21swapper/023:18:040
11902992213,6cyclictest0-21swapper/020:14:180
11902992212,7cyclictest13717-21apache222:54:040
11902992210,9cyclictest0-21swapper/000:29:590
11902992210,6cyclictest0-21swapper/000:34:220
11902992210,0cyclictest0-21swapper/022:18:470
11903992120,1cyclictest802-21apache221:56:271
11903992120,0cyclictest25728-21kworker/u4:121:11:471
11903992110,7cyclictest0-21swapper/121:59:241
11903992110,4cyclictest0-21swapper/119:24:191
11903992110,10cyclictest0-21swapper/121:45:401
1190399210,17cyclictest0-21swapper/122:39:121
1190299217,6cyclictest0-21swapper/023:54:150
1190299216,8cyclictest0-21swapper/020:24:110
11902992120,1cyclictest13743-21apache221:25:120
11902992118,2cyclictest11900-21cyclictest22:03:010
11902992110,5cyclictest0-21swapper/023:44:060
11902992110,5cyclictest0-21swapper/021:04:130
593322010,0sleep10-21swapper/100:12:501
1190399208,12cyclictest5778-21kworker/1:022:33:231
1190399204,6cyclictest0-21swapper/122:24:121
11903992011,7cyclictest13717-21apache223:39:111
11903992010,6cyclictest0-21swapper/122:57:461
11903992010,5cyclictest0-21swapper/120:29:181
11903992010,2cyclictest0-21swapper/123:07:231
1190299205,9cyclictest13960-21sh21:34:180
11902992018,1cyclictest26604-21ntp_states21:09:180
11902992012,5cyclictest0-21swapper/019:09:120
11902992010,8cyclictest0-21swapper/019:14:030
11902992010,6cyclictest0-21swapper/022:24:130
11902992010,4cyclictest0-21swapper/022:32:220
1190299200,20cyclictest0-21swapper/019:28:570
787421910,0sleep00-21swapper/020:20:380
2766221910,0sleep10-21swapper/123:57:551
193942190,1sleep00-21swapper/021:41:150
1190399193,5cyclictest0-21swapper/119:14:201
11903991918,1cyclictest13717-21apache222:18:421
11903991916,2cyclictest802-21apache222:20:161
11903991916,2cyclictest0-21swapper/123:24:111
11903991914,4cyclictest23336-21perf19:39:021
11903991912,3cyclictest231ktimersoftd/121:34:161
11903991910,5cyclictest0-21swapper/119:29:161
11903991910,4cyclictest0-21swapper/122:34:221
11903991910,0cyclictest0-21swapper/121:19:121
1190299195,6cyclictest16518-21/usr/sbin/munin22:19:160
1190299193,8cyclictest0-21swapper/019:44:180
11902991916,3cyclictest13717-21apache223:03:200
11902991910,5cyclictest0-21swapper/022:41:190
11902991910,5cyclictest0-21swapper/019:29:190
11902991910,4cyclictest0-21swapper/023:23:350
11902991910,4cyclictest0-21swapper/022:46:350
11902991910,3cyclictest0-21swapper/019:19:140
11902991910,2cyclictest0-21swapper/023:04:320
1190299190,13cyclictest0-21swapper/021:29:120
1190399186,8cyclictest0-21swapper/121:04:221
1190399184,10cyclictest0-21swapper/123:29:201
1190399183,10cyclictest0-21swapper/120:04:231
1190399181,6cyclictest0-21swapper/120:54:011
11903991811,3cyclictest0-21swapper/119:54:141
11903991810,5cyclictest0-21swapper/122:09:151
11903991810,3cyclictest0-21swapper/120:19:121
1190299184,8cyclictest30996-21munin-run19:59:020
1190299184,8cyclictest0-21swapper/020:44:190
1190299182,9cyclictest0-21swapper/020:59:230
11902991816,1cyclictest29844-21awk21:54:200
11902991810,1cyclictest0-21swapper/022:53:080
1190399173,8cyclictest0-21swapper/119:09:221
1190399173,6cyclictest8442-21/usr/sbin/munin20:24:111
11903991715,1cyclictest14241-21cpu20:39:121
11903991713,1cyclictest0-21swapper/120:14:021
11903991712,2cyclictest0-21swapper/123:19:261
11903991711,5cyclictest5778-21kworker/1:023:34:051
11903991710,4cyclictest0-21swapper/122:04:151
11903991710,2cyclictest0-21swapper/120:54:141
11903991710,2cyclictest0-21swapper/119:49:121
1190299174,9cyclictest0-21swapper/020:54:130
1190299173,12cyclictest0-21swapper/019:39:130
11902991710,4cyclictest0-21swapper/020:29:140
11902991710,3cyclictest0-21swapper/020:04:210
11902991710,1cyclictest0-21swapper/020:09:170
1190399164,8cyclictest0-21swapper/100:24:141
11903991611,2cyclictest13743-21apache219:44:231
11903991610,3cyclictest0-21swapper/119:59:131
11903991610,2cyclictest0-21swapper/120:59:181
11902991610,4cyclictest0-21swapper/019:35:180
1190399150,11cyclictest744-21snmpd20:44:151
1190299153,6cyclictest0-21swapper/019:49:190
1190299142,8cyclictest0-21swapper/020:39:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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