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2026-07-31 - 16:46
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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 792 highest latencies:
System rackcslot2.osadl.org (updated Fri Jul 31, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1940827057,8sleep00-21swapper/007:08:030
1936526855,8sleep10-21swapper/107:07:361
19609993210,0cyclictest0-21swapper/007:09:440
1961099310,1cyclictest0-21swapper/112:07:201
19610992927,1cyclictest0-21swapper/111:01:471
19610992910,11cyclictest0-21swapper/111:17:371
19609992928,0cyclictest0-21swapper/009:13:520
19610992825,2cyclictest31999-21if_eth207:38:331
1961099282,25cyclictest28638-21if_eth209:43:311
19609992826,1cyclictest0-21swapper/011:09:530
19610992727,0cyclictest0-21swapper/111:57:491
1960999270,0cyclictest0-21swapper/009:05:590
3238122610,1sleep10-21swapper/110:30:571
19610992610,7cyclictest0-21swapper/111:18:291
19610992610,13cyclictest0-21swapper/111:48:381
19609992620,5cyclictest29493-21apache212:22:130
19609992610,15cyclictest0-21swapper/012:17:180
1960999260,0cyclictest0-21swapper/008:08:100
1961099259,7cyclictest29493-21apache208:13:371
19610992512,5cyclictest636-21nscd12:34:011
19610992510,3cyclictest0-21swapper/110:26:311
1960999257,9cyclictest0-21swapper/011:38:360
1960999250,19cyclictest0-21swapper/012:32:000
1960999250,18cyclictest0-21swapper/009:57:500
1960999243,10cyclictest0-21swapper/007:43:310
19609992410,13cyclictest0-21swapper/010:32:270
1961099237,9cyclictest0-21swapper/110:13:291
1961099235,9cyclictest0-21swapper/107:23:161
1961099232,20cyclictest0-21swapper/112:12:451
19610992310,8cyclictest0-21swapper/110:51:291
19609992312,6cyclictest29493-21apache209:47:170
19609992311,11cyclictest0-21swapper/009:38:360
19609992310,6cyclictest0-21swapper/010:53:290
19609992310,3cyclictest0-21swapper/010:41:570
19609992310,10cyclictest0-21swapper/008:51:030
1960999230,4cyclictest0-21swapper/010:36:330
1961099226,8cyclictest0-21swapper/110:53:301
19610992211,4cyclictest0-21swapper/107:53:451
19610992210,4cyclictest0-21swapper/109:09:241
19609992221,1cyclictest81ktimersoftd/008:38:370
19609992221,1cyclictest0-21swapper/011:04:000
19609992214,7cyclictest29508-21apache209:11:390
19609992210,5cyclictest0-21swapper/010:10:060
19609992210,5cyclictest0-21swapper/010:04:390
19609992210,4cyclictest0-21swapper/012:25:120
19609992210,4cyclictest0-21swapper/011:53:330
2920722110,0sleep00-21swapper/010:27:180
1961099215,9cyclictest0-21swapper/110:18:301
1961099215,10cyclictest0-21swapper/112:28:331
1961099214,12cyclictest0-21swapper/108:33:321
19610992117,3cyclictest29493-21apache211:39:091
19610992117,2cyclictest29493-21apache211:33:081
19610992116,2cyclictest231ktimersoftd/110:03:331
19610992111,4cyclictest11884-21uptime08:08:381
1960999217,3cyclictest0-21swapper/008:33:330
1960999215,8cyclictest0-21swapper/010:58:290
1960999213,9cyclictest0-21swapper/011:28:320
19609992118,2cyclictest0-21swapper/009:34:280
19609992111,4cyclictest0-21swapper/010:44:210
19609992111,4cyclictest0-21swapper/009:19:140
19609992110,5cyclictest0-21swapper/012:10:320
19609992110,4cyclictest0-21swapper/010:16:560
19609992110,2cyclictest636-21nscd10:49:270
1961099204,8cyclictest24479-21snmpd07:13:381
19610992019,1cyclictest29493-21apache208:49:231
19610992019,0cyclictest27381-21kworker/1:111:48:001
19610992010,7cyclictest0-21swapper/108:08:131
19610992010,6cyclictest0-21swapper/110:10:041
19610992010,6cyclictest0-21swapper/109:39:071
19610992010,5cyclictest0-21swapper/111:24:201
19610992010,3cyclictest0-21swapper/109:53:331
1960999204,9cyclictest0-21swapper/009:48:350
1960999203,9cyclictest0-21swapper/012:03:350
1960999203,11cyclictest0-21swapper/009:58:370
1960999203,10cyclictest0-21swapper/007:18:280
1960999202,11cyclictest0-21swapper/008:58:290
19609992016,3cyclictest1199-21runrttasks08:54:400
19609992016,1cyclictest19607-21cyclictest11:16:340
19609992011,1cyclictest0-21swapper/010:22:590
94621910,0sleep10-21swapper/109:48:391
1961099198,3cyclictest1148-21diskmemload09:35:371
19610991914,2cyclictest0-21swapper/108:23:281
1961099191,13cyclictest0-21swapper/111:08:251
19610991910,8cyclictest0-21swapper/109:28:551
19610991910,4cyclictest0-21swapper/107:43:291
19610991910,3cyclictest0-21swapper/109:24:271
19610991910,2cyclictest0-21swapper/112:26:591
1961099190,1cyclictest0-21swapper/110:45:571
1960999196,5cyclictest1199-21runrttasks08:26:520
19609991910,4cyclictest0-21swapper/011:43:270
19609991910,4cyclictest0-21swapper/007:33:290
19609991910,4cyclictest0-21swapper/007:23:330
19609991910,3cyclictest0-21swapper/012:33:390
19609991910,3cyclictest0-21swapper/007:39:000
19609991910,2cyclictest0-21swapper/011:48:280
1960999190,7cyclictest2706-21apache_accesses11:18:280
577121810,0sleep10-21swapper/110:38:351
19610991812,1cyclictest12693-21diskmemload12:13:571
1961099181,0cyclictest0-21swapper/109:20:141
19610991810,6cyclictest0-21swapper/112:18:351
19610991810,5cyclictest0-21swapper/111:33:541
19610991810,5cyclictest0-21swapper/107:33:181
19610991810,3cyclictest0-21swapper/109:04:541
19610991810,2cyclictest0-21swapper/108:53:281
1961099180,11cyclictest0-21swapper/110:33:311
1960999183,3cyclictest14312-21awk08:18:170
1960999182,6cyclictest0-21swapper/008:43:370
19609991811,3cyclictest0-21swapper/011:33:370
19609991810,5cyclictest0-21swapper/009:32:470
1960999180,8cyclictest0-21swapper/009:23:270
1961099175,7cyclictest0-21swapper/111:58:371
1961099175,6cyclictest0-21swapper/109:13:331
19610991715,2cyclictest585-21gmain07:12:121
1961099171,10cyclictest0-21swapper/107:48:301
19610991710,7cyclictest27381-21kworker/1:111:03:501
19610991710,4cyclictest0-21swapper/107:23:351
19610991710,3cyclictest0-21swapper/108:28:351
19610991710,2cyclictest0-21swapper/108:19:151
1960999175,4cyclictest0-21swapper/008:18:340
1960999174,6cyclictest0-21swapper/007:13:320
1960999172,7cyclictest0-21swapper/011:23:350
19609991712,4cyclictest19607-21cyclictest08:12:120
19609991710,4cyclictest0-21swapper/011:58:380
1051621710,0sleep10-21swapper/110:03:011
54802166,0sleep00-21swapper/007:53:340
1961099164,6cyclictest0-21swapper/107:58:271
19610991610,3cyclictest0-21swapper/108:41:101
19609991610,6cyclictest0-21swapper/007:58:360
19609991610,3cyclictest0-21swapper/007:48:400
1961099152,7cyclictest25802-21dump-pmu-power08:48:161
1961099152,4cyclictest27335-21apache_processe07:28:291
19610991512,3cyclictest100150irq/106-eth1-rx09:00:051
1960999158,3cyclictest0-21swapper/008:28:290
19609991510,1cyclictest0-21swapper/007:28:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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