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2026-04-03 - 22:20
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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 Fri Apr 03, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
756127254,8sleep10-21swapper/107:08:221
278822670,2sleep00-21swapper/007:59:300
726726653,8sleep00-21swapper/007:05:170
7828993710,6cyclictest17190-21kworker/u4:010:46:320
7828993030,0cyclictest0-21swapper/009:57:390
7829992929,0cyclictest0-21swapper/112:08:551
782999290,28cyclictest0-21swapper/109:59:221
7828992929,0cyclictest0-21swapper/011:35:330
7828992710,1cyclictest0-21swapper/010:37:520
782899270,3cyclictest0-21swapper/012:09:300
7829992610,12cyclictest0-21swapper/109:21:031
782999260,5cyclictest0-21swapper/110:13:021
7828992619,6cyclictest7554-21ssh09:33:350
7828992617,4cyclictest636-21nscd09:22:020
7829992524,1cyclictest0-21swapper/111:01:011
7829992510,5cyclictest0-21swapper/112:02:211
782999250,14cyclictest0-21swapper/111:04:251
7828992510,1cyclictest0-21swapper/010:41:200
7829992419,4cyclictest17673-21apache211:18:151
7829992412,7cyclictest0-21swapper/111:34:261
7829992410,9cyclictest0-21swapper/109:17:351
7828992422,1cyclictest19665-21/usr/sbin/munin07:39:320
7828992419,4cyclictest17647-21apache210:28:530
7828992410,7cyclictest0-21swapper/010:04:330
7828992410,6cyclictest0-21swapper/010:31:170
7828992410,2cyclictest0-21swapper/010:22:000
782899240,2cyclictest0-21swapper/011:54:210
782999234,18cyclictest0-21swapper/112:13:181
7829992312,7cyclictest4333-21cron10:14:151
782999230,0cyclictest19187-21kworker/u4:111:23:461
7828992311,8cyclictest17647-21apache207:44:260
7828992310,11cyclictest0-21swapper/011:07:520
782899230,1cyclictest0-21swapper/010:58:200
782999224,17cyclictest13612-21/usr/sbin/munin07:24:281
782999224,14cyclictest0-21swapper/107:49:261
7829992216,4cyclictest17647-21apache209:48:471
7829992210,8cyclictest0-21swapper/111:09:321
7829992210,7cyclictest0-21swapper/110:08:341
782999220,3cyclictest6444-21apache_accesses08:29:261
782899223,15cyclictest0-21swapper/010:59:330
7828992214,4cyclictest17647-21apache210:03:440
782899221,3cyclictest0-21swapper/009:34:540
782899221,0cyclictest0-21swapper/009:14:110
782899220,2cyclictest0-21swapper/011:13:390
782899220,10cyclictest0-21swapper/010:49:250
782899220,0cyclictest0-21swapper/012:29:130
782899220,0cyclictest0-21swapper/012:23:490
782999215,8cyclictest0-21swapper/111:29:261
782999215,13cyclictest0-21swapper/111:39:351
782999213,14cyclictest0-21swapper/109:54:181
782999212,10cyclictest0-21swapper/107:14:341
7829992114,3cyclictest0-21swapper/110:49:061
7829992111,4cyclictest13791-21pidof08:47:381
7829992110,5cyclictest0-21swapper/109:43:031
7829992110,5cyclictest0-21swapper/109:36:241
7829992110,4cyclictest0-21swapper/112:14:201
7829992110,3cyclictest0-21swapper/111:24:271
7829992110,0cyclictest0-21swapper/112:36:181
782999210,21cyclictest0-21swapper/108:34:151
782999210,10cyclictest0-21swapper/110:39:271
782899214,9cyclictest0-21swapper/007:29:250
782899213,13cyclictest0-21swapper/011:29:170
7828992119,2cyclictest802-21apache208:58:230
7828992118,2cyclictest15675-21/usr/sbin/munin11:14:280
7828992116,4cyclictest636-21nscd09:50:360
7828992116,2cyclictest17685-21kworker/0:212:03:230
7828992110,6cyclictest0-21swapper/012:14:270
7828992110,5cyclictest0-21swapper/011:21:480
7828992110,5cyclictest0-21swapper/008:49:310
7828992110,3cyclictest0-21swapper/012:37:140
782899210,4cyclictest0-21swapper/012:32:490
782899210,19cyclictest3587-21kworker/u4:209:41:510
782899210,0cyclictest0-21swapper/009:18:080
807522010,0sleep00-21swapper/011:48:430
782999206,8cyclictest0-21swapper/110:29:191
782999206,7cyclictest0-21swapper/107:19:251
7829992016,3cyclictest17673-21apache210:50:441
7829992011,4cyclictest17673-21apache209:01:321
782999201,14cyclictest0-21swapper/108:19:311
7829992010,7cyclictest100250irq/107-eth1-rx10:26:171
7829992010,6cyclictest0-21swapper/109:24:251
7829992010,2cyclictest0-21swapper/108:04:341
782899207,6cyclictest17685-21kworker/0:212:04:280
7828992011,3cyclictest0-21swapper/008:29:320
1743922010,0sleep00-21swapper/009:46:370
827721910,0sleep10-21swapper/111:49:101
782999194,13cyclictest0-21swapper/108:09:271
782999193,9cyclictest0-21swapper/107:34:301
782999192,14cyclictest0-21swapper/109:09:301
7829991916,3cyclictest17647-21apache212:25:331
7829991910,6cyclictest0-21swapper/110:56:371
7829991910,6cyclictest0-21swapper/109:04:291
7829991910,4cyclictest0-21swapper/109:49:271
7829991910,0cyclictest0-21swapper/109:32:291
782899195,8cyclictest0-21swapper/009:24:340
782899194,10cyclictest0-21swapper/011:39:290
782899193,9cyclictest0-21swapper/011:28:210
7828991910,6cyclictest13233-21taskset07:22:050
7828991910,5cyclictest0-21swapper/008:24:260
203282192,0sleep121707-21diskmemload10:34:381
782999185,6cyclictest0-21swapper/111:54:331
782999183,7cyclictest0-21swapper/107:44:251
7829991816,1cyclictest18016-21apache207:11:461
7829991815,3cyclictest18037-21apache207:31:431
7829991812,5cyclictest0-21swapper/108:14:261
7829991810,4cyclictest0-21swapper/112:20:461
7829991810,4cyclictest0-21swapper/111:49:271
7829991810,3cyclictest0-21swapper/112:33:251
7829991810,3cyclictest0-21swapper/110:19:511
7829991810,0cyclictest0-21swapper/108:02:071
782899184,6cyclictest8364-21apache_accesses08:34:250
782899183,7cyclictest0-21swapper/008:59:320
782899183,7cyclictest0-21swapper/007:34:310
782899183,11cyclictest0-21swapper/010:09:280
782899182,10cyclictest0-21swapper/008:19:340
7828991810,4cyclictest0-21swapper/007:54:270
7828991810,1cyclictest0-21swapper/011:50:560
7828991810,1cyclictest0-21swapper/010:18:300
782999176,9cyclictest0-21swapper/108:54:321
782999174,8cyclictest0-21swapper/107:39:281
782899173,6cyclictest10118-21/usr/sbin/munin07:14:280
782899172,7cyclictest0-21swapper/008:09:270
7828991715,1cyclictest18016-21apache207:13:500
7828991710,4cyclictest0-21swapper/008:08:180
7828991710,2cyclictest0-21swapper/008:39:260
603221710,0sleep10-21swapper/108:26:461
7829991610,0cyclictest0-21swapper/108:51:301
782899163,7cyclictest0-21swapper/007:24:250
7828991610,3cyclictest0-21swapper/009:06:320
7828991610,2cyclictest0-21swapper/007:49:260
7828991610,0cyclictest0-21swapper/008:44:260
7829991515,0cyclictest0-21swapper/108:42:261
7829991511,3cyclictest599-21avahi-daemon07:54:181
782899152,7cyclictest0-21swapper/008:16:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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