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2026-08-03 - 06:08
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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 Mon Aug 03, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2722927053,7sleep10-21swapper/119:03:491
2760026756,7sleep00-21swapper/019:07:420
27835993333,0cyclictest0-21swapper/121:13:271
27834992928,1cyclictest0-21swapper/021:18:190
2783599284,8cyclictest0-21swapper/122:04:471
27835992823,4cyclictest31266-21sh23:02:211
2783599280,22cyclictest22682-21rm22:49:581
27834992816,6cyclictest6105-21ntpq20:58:320
2783499280,27cyclictest0-21swapper/022:29:200
27835992710,3cyclictest0-21swapper/123:30:541
27835992710,0cyclictest0-21swapper/123:25:001
27835992710,0cyclictest0-21swapper/122:17:381
27834992710,7cyclictest0-21swapper/023:33:450
27834992710,12cyclictest0-21swapper/021:26:560
2783499265,20cyclictest0-21swapper/023:59:480
27834992621,4cyclictest9716-21apache223:22:030
27834992610,4cyclictest447-21kworker/0:023:45:340
27835992524,1cyclictest0-21swapper/121:58:381
27835992519,5cyclictest231ktimersoftd/121:18:261
27835992510,6cyclictest0-21swapper/120:38:271
27835992510,14cyclictest0-21swapper/122:46:071
27834992523,2cyclictest447-21kworker/0:020:49:500
27834992516,6cyclictest447-21kworker/0:020:28:590
27834992510,5cyclictest0-21swapper/022:18:350
2783499250,5cyclictest0-21swapper/023:49:340
27835992424,0cyclictest0-21swapper/120:07:181
27835992421,2cyclictest9743-21apache200:17:531
27835992410,1cyclictest0-21swapper/123:40:391
27834992424,0cyclictest0-21swapper/019:29:400
27834992422,1cyclictest16916-21ssh23:25:320
27834992413,4cyclictest0-21swapper/022:05:170
27834992411,3cyclictest0-21swapper/000:20:150
27834992410,2cyclictest0-21swapper/023:08:350
27835992316,6cyclictest1384-21ssh22:23:071
2783599231,19cyclictest26423-21kworker/u4:022:36:021
27834992322,0cyclictest81ktimersoftd/019:08:320
27834992321,2cyclictest447-21kworker/0:019:55:590
27834992321,2cyclictest447-21kworker/0:019:55:590
27834992310,9cyclictest0-21swapper/022:23:290
27834992310,6cyclictest0-21swapper/000:03:290
2783599229,5cyclictest9269-21/usr/sbin/munin21:08:281
2783599225,12cyclictest0-21swapper/121:28:361
27835992219,1cyclictest1199-21runrttasks19:44:581
27835992218,3cyclictest3349-21ssh21:42:401
27835992216,5cyclictest9716-21apache222:55:371
27834992218,3cyclictest9716-21apache222:36:410
27834992217,3cyclictest447-21kworker/0:023:08:140
27834992212,4cyclictest9041-21diskmemload21:40:310
2783499221,16cyclictest0-21swapper/022:43:020
27834992210,7cyclictest0-21swapper/023:00:200
27834992210,7cyclictest0-21swapper/020:08:330
27834992210,6cyclictest0-21swapper/020:38:370
27834992210,5cyclictest0-21swapper/000:13:290
2783599214,10cyclictest0-21swapper/119:28:291
2783599212,14cyclictest0-21swapper/123:13:271
27835992119,2cyclictest9716-21apache220:15:551
2783599211,10cyclictest0-21swapper/123:33:281
27835992110,8cyclictest0-21swapper/122:23:281
2783499216,8cyclictest0-21swapper/023:53:350
27834992110,8cyclictest0-21swapper/021:46:500
27834992110,5cyclictest0-21swapper/000:33:320
27834992110,3cyclictest0-21swapper/000:28:270
1050122110,0sleep00-21swapper/019:46:080
2783599206,8cyclictest9741-21apache219:18:271
2783599204,8cyclictest0-21swapper/120:48:291
2783599204,11cyclictest0-21swapper/123:53:361
2783599204,10cyclictest0-21swapper/121:03:281
2783599202,10cyclictest0-21swapper/120:43:281
27835992015,3cyclictest32512-21ssh23:46:481
2783599201,13cyclictest0-21swapper/120:34:141
27835992010,5cyclictest0-21swapper/121:45:421
27835992010,4cyclictest0-21swapper/100:03:201
27835992010,3cyclictest0-21swapper/123:58:321
2783599200,3cyclictest0-21swapper/121:24:331
2783499205,7cyclictest0-21swapper/020:23:270
2783499203,16cyclictest0-21swapper/021:28:300
2783499202,13cyclictest9041-21diskmemload22:13:260
27834992020,0cyclictest0-21swapper/022:10:000
27834992017,2cyclictest9743-21apache223:16:350
27834992013,5cyclictest9716-21apache222:55:160
27834992010,5cyclictest0-21swapper/021:58:410
27834992010,3cyclictest0-21swapper/021:08:580
2783499200,12cyclictest0-21swapper/019:18:330
2333122010,0sleep00-21swapper/022:51:220
132902200,0sleep10-21swapper/123:21:011
2783599196,6cyclictest25388-21ls20:23:361
2783599193,6cyclictest23038-21apache_volume00:18:251
27835991916,2cyclictest9743-21apache200:26:261
27835991915,3cyclictest0-21swapper/100:08:531
27835991910,8cyclictest0-21swapper/100:36:591
2783499196,7cyclictest0-21swapper/020:13:340
2783499194,4cyclictest0-21swapper/019:13:360
2783499194,12cyclictest0-21swapper/021:13:270
2783499194,10cyclictest0-21swapper/023:28:270
27834991918,1cyclictest9716-21apache221:52:210
27834991917,1cyclictest0-21swapper/021:55:320
27834991911,4cyclictest0-21swapper/023:38:260
27834991910,2cyclictest0-21swapper/021:03:330
2783499190,11cyclictest0-21swapper/020:33:300
1053621910,0sleep10-21swapper/121:51:501
2783599187,6cyclictest3295-21apache_volume23:08:271
2783599185,8cyclictest0-21swapper/119:58:281
2783599183,7cyclictest0-21swapper/119:13:391
2783599182,11cyclictest0-21swapper/119:09:081
27835991817,1cyclictest9743-21apache221:35:221
27835991815,2cyclictest0-21swapper/119:33:261
27835991810,5cyclictest0-21swapper/122:11:301
27835991810,4cyclictest0-21swapper/123:03:361
27835991810,4cyclictest0-21swapper/119:23:331
2783499185,3cyclictest0-21swapper/000:12:390
2783499182,8cyclictest0-21swapper/021:33:370
27834991816,1cyclictest26423-21kworker/u4:022:46:430
27835991712,4cyclictest9716-21apache222:40:491
27835991710,4cyclictest0-21swapper/121:53:291
27835991710,3cyclictest13973-21ls19:53:371
27835991710,3cyclictest13973-21ls19:53:371
27835991710,3cyclictest0-21swapper/122:29:021
27835991710,0cyclictest0-21swapper/100:28:261
2783599170,5cyclictest9718-21apache219:38:241
2783499175,8cyclictest0-21swapper/019:58:300
27834991716,1cyclictest24479-21snmpd20:47:100
27834991710,7cyclictest0-21swapper/000:25:090
27834991710,6cyclictest447-21kworker/0:019:42:390
27834991710,5cyclictest0-21swapper/020:18:270
27834991710,3cyclictest0-21swapper/020:06:170
2783599169,3cyclictest0-21swapper/120:58:291
2783599166,9cyclictest0-21swapper/119:48:331
2783599161,11cyclictest0-21swapper/123:48:281
2783499161,6cyclictest6819-21munin-run19:38:150
27834991616,0cyclictest0-21swapper/019:23:330
27834991613,1cyclictest0-21swapper/020:54:090
27834991610,0cyclictest0-21swapper/019:50:010
2783599159,2cyclictest20156-21seq20:11:511
2783599155,5cyclictest0-21swapper/120:53:311
2783599150,8cyclictest23968-21runrttasks20:21:281
2783599140,8cyclictest26719-21/usr/sbin/munin20:28:311
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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