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2026-08-08 - 15:15
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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 Sat Aug 08, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2440727159,8sleep10-21swapper/107:06:541
2414526451,8sleep00-21swapper/007:04:100
29972630,1sleep12533-21/usr/sbin/munin08:58:281
24717993210,15cyclictest0-21swapper/111:14:071
24717993028,1cyclictest24714-21cyclictest10:28:271
24716993010,2cyclictest0-21swapper/011:40:140
24716993010,1cyclictest0-21swapper/012:04:520
24717992913,14cyclictest12970-21kworker/1:208:52:131
2471799285,22cyclictest0-21swapper/109:47:091
24717992828,0cyclictest0-21swapper/111:32:181
24716992810,17cyclictest0-21swapper/011:35:580
2471799276,20cyclictest0-21swapper/112:31:171
2471799270,23cyclictest0-21swapper/110:33:331
24716992723,3cyclictest2135-21apache209:32:410
2471699270,9cyclictest0-21swapper/009:18:260
24717992621,3cyclictest2135-21apache212:22:021
24717992510,8cyclictest100350irq/108-eth1-tx09:37:281
24717992510,1cyclictest0-21swapper/110:59:031
24717992510,1cyclictest0-21swapper/110:23:171
24716992521,3cyclictest29362-21ntpq07:18:310
24716992519,3cyclictest2162-21apache209:44:590
24716992510,10cyclictest0-21swapper/009:48:240
24717992419,3cyclictest2162-21apache210:20:181
24716992422,1cyclictest10050irq/110-ahci[0010:13:270
24716992418,5cyclictest2162-21apache210:48:170
24716992416,6cyclictest0-21swapper/009:11:160
2471699241,4cyclictest0-21swapper/009:33:320
2471699241,2cyclictest0-21swapper/011:25:220
24716992410,0cyclictest0-21swapper/010:38:330
2471799232,17cyclictest0-21swapper/111:48:401
24717992320,2cyclictest2135-21apache209:15:431
24717992317,3cyclictest22847-21ssh11:38:191
24717992314,5cyclictest636-21nscd09:22:081
24717992314,3cyclictest231ktimersoftd/112:12:121
24717992310,0cyclictest0-21swapper/110:13:351
2471799223,16cyclictest32272-21perf07:28:131
2471799223,15cyclictest0-21swapper/108:38:321
2471799223,12cyclictest0-21swapper/109:48:241
2471799220,1cyclictest0-21swapper/111:58:011
2471699226,13cyclictest0-21swapper/009:53:300
2471699222,13cyclictest0-21swapper/008:08:310
24716992210,6cyclictest0-21swapper/012:28:260
24716992210,4cyclictest0-21swapper/010:58:250
24716992210,4cyclictest0-21swapper/008:13:300
24716992210,4cyclictest0-21swapper/007:13:270
2471699220,21cyclictest0-21swapper/011:17:070
2471699220,13cyclictest0-21swapper/010:08:240
2471799215,9cyclictest0-21swapper/112:03:291
24717992121,0cyclictest0-21swapper/107:47:561
24717992110,8cyclictest0-21swapper/111:59:011
24717992110,7cyclictest0-21swapper/109:58:221
24717992110,3cyclictest0-21swapper/111:07:241
24717992110,3cyclictest0-21swapper/107:37:471
2471699215,9cyclictest0-21swapper/010:43:260
24716992121,0cyclictest0-21swapper/007:37:230
24716992119,2cyclictest17002-21cstates12:13:270
24716992111,5cyclictest0-21swapper/010:28:240
24716992110,4cyclictest0-21swapper/010:36:470
2471699210,1cyclictest0-21swapper/011:07:340
2471799205,13cyclictest0-21swapper/112:23:251
2471799203,13cyclictest0-21swapper/108:03:251
24717992010,4cyclictest0-21swapper/110:39:471
24717992010,3cyclictest0-21swapper/111:23:441
2471799200,13cyclictest0-21swapper/111:35:561
2471699208,7cyclictest81ktimersoftd/007:28:260
24716992020,0cyclictest81ktimersoftd/007:59:060
24716992019,1cyclictest2162-21apache211:55:540
24716992015,1cyclictest7-21ksoftirqd/010:53:300
2471699201,2cyclictest0-21swapper/011:22:070
24716992011,4cyclictest0-21swapper/011:11:090
24716992011,4cyclictest0-21swapper/008:28:240
24716992010,8cyclictest0-21swapper/007:43:450
24716992010,6cyclictest0-21swapper/009:13:270
24716992010,5cyclictest0-21swapper/011:45:380
24716992010,3cyclictest0-21swapper/011:29:590
2471799198,5cyclictest25090-21cron08:33:121
2471799196,6cyclictest29101-21/usr/sbin/munin08:43:311
2471799195,10cyclictest0-21swapper/111:18:301
2471799192,7cyclictest29436-21cron09:38:121
24717991910,8cyclictest0-21swapper/110:50:311
24717991910,5cyclictest0-21swapper/107:38:291
24717991910,4cyclictest0-21swapper/110:43:261
24717991910,4cyclictest0-21swapper/107:53:241
24717991910,3cyclictest0-21swapper/109:28:241
24717991910,1cyclictest0-21swapper/112:14:091
2471699194,9cyclictest0-21swapper/010:03:310
2471699194,9cyclictest0-21swapper/008:43:120
24716991917,2cyclictest81ktimersoftd/009:41:170
24716991914,2cyclictest18468-21fw_packets09:23:240
24716991910,8cyclictest0-21swapper/012:36:200
24716991910,4cyclictest0-21swapper/012:08:250
24716991910,2cyclictest0-21swapper/012:18:230
34821810,0sleep10-21swapper/111:08:161
2471799186,2cyclictest2135-21apache208:13:261
2471799183,8cyclictest28120-21users11:43:341
2471799183,10cyclictest0-21swapper/108:33:241
24717991818,0cyclictest11935-21munin-node09:12:331
24717991814,3cyclictest2135-21apache212:35:061
24717991814,1cyclictest24714-21cyclictest09:57:111
24717991810,5cyclictest0-21swapper/109:23:241
24717991810,3cyclictest0-21swapper/108:53:251
24717991810,3cyclictest0-21swapper/107:17:481
24717991810,2cyclictest0-21swapper/110:53:531
24717991810,2cyclictest0-21swapper/110:10:201
2471799180,8cyclictest17428-21idleruntime-cro08:13:121
2471699188,5cyclictest0-21swapper/012:23:310
24716991818,0cyclictest0-21swapper/010:19:520
24716991815,2cyclictest11935-21munin-node08:44:390
24716991812,6cyclictest0-21swapper/008:52:130
24716991810,7cyclictest0-21swapper/011:58:590
24716991810,4cyclictest0-21swapper/009:03:340
24716991810,3cyclictest0-21swapper/010:23:330
2123921810,0sleep10-21swapper/108:23:041
1828521810,1sleep10-21swapper/110:05:171
2471799175,11cyclictest0-21swapper/107:28:261
2471799171,6cyclictest22200-21ntp_states08:23:301
24717991711,5cyclictest2135-21apache207:50:091
24717991711,2cyclictest0-21swapper/107:08:321
24717991711,1cyclictest4769-21fschecks_time09:03:261
2471699174,8cyclictest0-21swapper/008:33:290
24716991717,0cyclictest0-21swapper/009:00:440
24716991710,3cyclictest0-21swapper/011:48:250
24716991710,3cyclictest0-21swapper/007:53:240
24716991710,2cyclictest0-21swapper/008:23:120
24717991611,4cyclictest13009-21kworker/1:207:20:031
24716991610,3cyclictest0-21swapper/008:53:270
24716991610,2cyclictest0-21swapper/008:03:240
24716991515,0cyclictest81ktimersoftd/007:28:120
24716991512,3cyclictest0-21swapper/007:48:510
24716991512,3cyclictest0-21swapper/007:41:470
24716991510,4cyclictest0-21swapper/010:00:560
24717991414,0cyclictest0-21swapper/107:58:321
2471699142,6cyclictest0-21swapper/007:08:290
24716991410,2cyclictest0-21swapper/008:23:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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