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2026-06-14 - 19:25
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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 Jun 14, 2026 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1832327050,16sleep10-21swapper/107:08:331
1794526649,8sleep00-21swapper/007:04:360
129882600,1sleep10-21swapper/109:24:021
18519993131,0cyclictest0-21swapper/112:26:201
18518993110,16cyclictest0-21swapper/010:20:450
18519992811,16cyclictest28290-21kworker/1:109:42:381
18518992823,2cyclictest0-21swapper/011:07:590
18519992617,6cyclictest10075-21ssh09:20:241
1851999260,5cyclictest0-21swapper/111:21:391
1851999260,5cyclictest0-21swapper/109:43:571
1851899260,20cyclictest28911-21kworker/u4:110:10:060
18519992524,0cyclictest0-21swapper/110:48:401
18519992510,8cyclictest0-21swapper/107:34:231
18518992513,10cyclictest0-21swapper/012:14:370
18518992510,5cyclictest0-21swapper/009:33:540
1851899250,24cyclictest9711-21taskset11:31:200
1851999247,15cyclictest28290-21kworker/1:108:46:541
18519992412,6cyclictest0-21swapper/108:08:591
18519992410,13cyclictest28290-21kworker/1:108:35:261
1851999240,13cyclictest0-21swapper/112:18:571
1851899242,21cyclictest32007-21ssh09:49:170
1851899242,1cyclictest0-21swapper/011:10:180
18518992421,2cyclictest705-21ntpd10:26:090
18518992410,5cyclictest0-21swapper/007:56:530
1851999236,12cyclictest0-21swapper/111:58:571
18519992310,5cyclictest0-21swapper/111:09:001
1851999230,21cyclictest3676-21ssh09:13:091
1851899233,8cyclictest0-21swapper/009:43:450
18518992313,2cyclictest0-21swapper/012:06:560
18518992311,5cyclictest0-21swapper/009:59:140
18519992221,0cyclictest231ktimersoftd/107:08:531
18519992221,0cyclictest0-21swapper/112:11:201
18519992218,3cyclictest28327-21apache210:54:101
18519992210,8cyclictest0-21swapper/107:28:551
18519992210,5cyclictest0-21swapper/108:13:521
18519992210,5cyclictest0-21swapper/107:38:541
18519992210,4cyclictest0-21swapper/111:53:541
18518992220,1cyclictest31620-21pidof12:00:010
18518992219,3cyclictest28327-21apache209:16:410
18518992217,4cyclictest802-21apache208:09:270
18518992217,4cyclictest14684-21sh09:27:280
18518992215,6cyclictest2865-21kworker/u4:212:09:250
18518992212,0cyclictest0-21swapper/012:24:000
1851899220,2cyclictest0-21swapper/009:21:200
1851999215,9cyclictest0-21swapper/108:24:011
18519992120,1cyclictest231ktimersoftd/109:30:391
18519992119,2cyclictest802-21apache212:31:391
18519992119,2cyclictest802-21apache212:31:391
18519992118,2cyclictest28349-21apache210:10:571
18519992110,9cyclictest0-21swapper/110:07:191
18519992110,8cyclictest0-21swapper/111:44:121
18519992110,6cyclictest0-21swapper/110:52:581
1851999210,21cyclictest0-21swapper/111:04:011
1851999210,19cyclictest0-21swapper/107:17:371
1851999210,10cyclictest6237-21/usr/sbin/munin09:58:581
1851899216,10cyclictest0-21swapper/010:33:530
1851899214,12cyclictest0-21swapper/008:38:520
18518992118,2cyclictest28349-21apache209:40:390
18518992117,1cyclictest705-21ntpd07:58:530
18518992116,3cyclictest28349-21apache212:31:280
18518992116,3cyclictest28349-21apache212:31:280
18518992114,4cyclictest28349-21apache208:49:490
18518992110,6cyclictest100250irq/107-eth1-rx10:17:420
18518992110,5cyclictest0-21swapper/009:29:020
18518992110,4cyclictest0-21swapper/008:53:510
18518992110,1cyclictest0-21swapper/012:23:000
1851899210,20cyclictest15257-21/usr/sbin/munin08:24:010
1106122110,0sleep00-21swapper/011:33:530
850622010,0sleep10-21swapper/108:04:031
2049722010,0sleep10-21swapper/111:02:571
1851999207,13cyclictest28290-21kworker/1:108:31:581
1851999203,11cyclictest0-21swapper/111:39:011
18519992010,7cyclictest0-21swapper/107:56:241
18519992010,6cyclictest0-21swapper/111:48:541
18519992010,5cyclictest0-21swapper/109:03:041
18519992010,3cyclictest100250irq/107-eth1-rx12:03:471
1851999200,5cyclictest0-21swapper/111:25:361
1851899205,8cyclictest0-21swapper/008:08:410
1851899204,10cyclictest0-21swapper/010:58:520
18518992010,6cyclictest32398-21cron09:08:420
18518992010,6cyclictest0-21swapper/011:24:260
18518992010,6cyclictest0-21swapper/008:13:560
18518992010,4cyclictest0-21swapper/007:39:010
18518992010,3cyclictest0-21swapper/011:43:570
1851899200,12cyclictest0-21swapper/007:13:590
2579221910,1sleep00-21swapper/012:36:430
1851999196,7cyclictest0-21swapper/110:18:581
1851999192,9cyclictest0-21swapper/112:13:581
1851999192,11cyclictest0-21swapper/109:54:021
18519991914,3cyclictest28327-21apache210:28:551
18519991910,6cyclictest0-21swapper/108:18:531
18519991910,4cyclictest0-21swapper/111:34:331
18519991910,4cyclictest0-21swapper/111:17:081
18519991910,4cyclictest0-21swapper/110:18:171
18519991910,3cyclictest0-21swapper/110:40:211
18519991910,3cyclictest0-21swapper/110:40:211
18519991910,3cyclictest0-21swapper/110:35:091
18519991910,2cyclictest0-21swapper/110:26:021
1851899198,7cyclictest636-21nscd10:53:270
1851899193,6cyclictest966-21ls07:44:020
1851899193,10cyclictest0-21swapper/011:48:540
1851899191,6cyclictest1349-21/usr/sbin/munin09:09:020
18518991915,3cyclictest28349-21apache210:55:050
18518991910,5cyclictest0-21swapper/011:13:540
18518991910,4cyclictest0-21swapper/010:38:550
18518991910,4cyclictest0-21swapper/010:38:550
18518991910,2cyclictest0-21swapper/009:55:060
2758121810,0sleep00-21swapper/010:28:480
2626921810,0sleep10-21swapper/108:50:281
2565321810,0sleep10-21swapper/107:24:391
18519991811,6cyclictest28290-21kworker/1:107:48:261
18519991810,7cyclictest7369-21apache_volume11:28:511
18519991810,3cyclictest0-21swapper/112:38:371
18519991810,3cyclictest0-21swapper/109:48:541
1851999180,7cyclictest0-21swapper/108:53:521
1851899184,9cyclictest0-21swapper/010:43:530
1851899182,9cyclictest0-21swapper/010:04:000
1851899181,9cyclictest0-21swapper/011:20:400
18518991811,3cyclictest0-21swapper/007:22:100
18518991810,5cyclictest0-21swapper/011:53:570
18518991810,5cyclictest0-21swapper/008:33:540
18518991810,4cyclictest0-21swapper/007:13:160
18518991810,1cyclictest0-21swapper/008:43:520
2070921710,3sleep10-21swapper/109:34:031
18519991715,1cyclictest30876-21entropy09:03:541
18519991714,1cyclictest18516-21cyclictest09:14:021
18519991710,3cyclictest0-21swapper/107:48:521
1851899173,8cyclictest0-21swapper/007:23:530
1851899171,7cyclictest0-21swapper/011:38:540
18518991714,1cyclictest81ktimersoftd/007:48:520
18518991710,5cyclictest0-21swapper/007:33:480
18518991710,2cyclictest0-21swapper/008:18:540
18518991710,2cyclictest0-21swapper/007:28:530
1851999163,9cyclictest0-21swapper/108:39:011
18519991612,4cyclictest3349-21kworker/1:207:20:541
1851899152,10cyclictest0-21swapper/008:28:580
18518991510,1cyclictest0-21swapper/009:03:420
18519991412,2cyclictest28290-21kworker/1:107:58:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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