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2026-04-23 - 01:55
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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 Wed Apr 22, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
59802700,0sleep10-21swapper/111:34:301
1551227049,17sleep10-21swapper/107:05:571
57412690,1sleep00-21swapper/008:04:230
1546726754,8sleep00-21swapper/007:05:280
139162640,0sleep10-21swapper/110:15:181
15996994010,29cyclictest0-21swapper/008:39:270
15996993910,28cyclictest0-21swapper/012:18:330
15996993810,27cyclictest0-21swapper/009:19:170
15996993610,23cyclictest0-21swapper/011:19:170
15996993510,24cyclictest0-21swapper/010:26:540
1599699335,27cyclictest0-21swapper/010:02:360
15996993311,21cyclictest17311-21ssh12:37:240
15996993310,22cyclictest0-21swapper/011:49:190
15996993310,22cyclictest0-21swapper/009:50:480
1599699320,7cyclictest0-21swapper/010:23:370
1599699313,7cyclictest0-21swapper/011:34:310
15996993110,20cyclictest0-21swapper/012:06:430
15996993010,12cyclictest0-21swapper/010:44:570
15996992910,14cyclictest0-21swapper/011:47:030
15997992810,0cyclictest0-21swapper/109:45:051
1599799280,24cyclictest0-21swapper/111:19:231
1599699281,9cyclictest0-21swapper/009:18:380
15996992813,14cyclictest10715-21apache207:12:150
15996992810,15cyclictest0-21swapper/008:14:300
1599699280,7cyclictest0-21swapper/010:05:100
1599699280,4cyclictest0-21swapper/012:02:220
15997992725,2cyclictest0-21swapper/108:24:231
15997992710,0cyclictest0-21swapper/109:59:211
1599699272,4cyclictest0-21swapper/009:59:070
15996992710,13cyclictest0-21swapper/007:39:160
15996992710,10cyclictest1199-21runrttasks07:23:150
1599699270,23cyclictest26619-21latency_hist09:49:070
15997992620,1cyclictest231ktimersoftd/108:29:211
15996992622,1cyclictest0-21swapper/010:54:260
15996992610,15cyclictest0-21swapper/010:09:250
15996992610,0cyclictest0-21swapper/010:41:480
1599699260,5cyclictest0-21swapper/011:08:450
1599699260,19cyclictest0-21swapper/009:41:080
1581622622,2sleep10-21swapper/107:09:061
1599799254,19cyclictest10722-21rm10:10:531
15997992525,0cyclictest0-21swapper/109:19:201
15997992520,1cyclictest0-21swapper/110:55:581
15997992510,8cyclictest0-21swapper/107:39:161
1599699254,20cyclictest0-21swapper/007:49:230
1599699252,6cyclictest0-21swapper/012:24:190
1599699251,4cyclictest12735-21if_eth010:14:210
15996992510,14cyclictest0-21swapper/012:20:460
15997992410,3cyclictest100250irq/107-eth1-rx12:07:461
1599799240,16cyclictest0-21swapper/111:28:241
1599799240,13cyclictest0-21swapper/108:14:221
1599699242,5cyclictest13898-21ssh11:00:120
15996992410,9cyclictest0-21swapper/009:09:180
15996992410,12cyclictest0-21swapper/010:33:250
1599799232,17cyclictest0-21swapper/109:18:441
15997992320,2cyclictest636-21nscd12:11:501
15997992317,4cyclictest25845-21apache211:06:061
15997992315,1cyclictest231ktimersoftd/112:18:051
15997992310,6cyclictest0-21swapper/109:09:231
15997992310,5cyclictest0-21swapper/110:04:171
15997992310,0cyclictest0-21swapper/111:45:181
15996992313,8cyclictest25818-21apache212:11:330
15996992310,7cyclictest0-21swapper/009:00:480
15996992310,12cyclictest0-21swapper/010:51:590
1599699230,3cyclictest0-21swapper/011:17:380
1843322210,2sleep10-21swapper/111:53:551
15997992218,3cyclictest25212-21ssh12:02:591
15997992210,6cyclictest0-21swapper/109:34:241
15997992210,6cyclictest0-21swapper/108:04:181
1599699228,13cyclictest0-21swapper/009:29:390
1599699225,16cyclictest17754-21runrttasks09:35:160
1599699222,19cyclictest17940-21apache_volume07:14:170
15996992210,1cyclictest0-21swapper/011:09:180
1599699220,21cyclictest0-21swapper/008:49:260
2968322110,0sleep10-21swapper/110:38:351
1599799218,12cyclictest25771-21kworker/1:209:32:061
1599799216,10cyclictest0-21swapper/108:19:201
1599799214,7cyclictest11211-21/usr/sbin/munin12:29:181
15997992121,0cyclictest0-21swapper/108:44:241
15997992118,2cyclictest0-21swapper/107:14:161
15997992115,4cyclictest25845-21apache212:28:411
15997992110,9cyclictest21421-21ssh09:40:451
15997992110,6cyclictest0-21swapper/111:54:181
15997992110,5cyclictest0-21swapper/110:33:241
1599799210,20cyclictest25771-21kworker/1:209:50:181
1599799210,10cyclictest0-21swapper/110:39:191
1599699213,4cyclictest0-21swapper/007:44:220
15996992111,10cyclictest11032-21ssh09:26:440
15996992110,6cyclictest0-21swapper/012:29:180
15996992110,10cyclictest0-21swapper/011:54:240
1599799205,8cyclictest0-21swapper/111:09:241
1599799203,8cyclictest0-21swapper/107:34:081
1599799203,11cyclictest0-21swapper/107:24:251
15997992016,3cyclictest100250irq/107-eth1-rx10:26:071
15997992010,8cyclictest0-21swapper/111:42:301
15997992010,6cyclictest0-21swapper/111:32:081
1599699205,11cyclictest0-21swapper/007:59:180
1599699202,8cyclictest0-21swapper/007:54:230
15996992010,5cyclictest0-21swapper/011:39:120
15997991914,2cyclictest231ktimersoftd/108:09:211
1599799191,13cyclictest0-21swapper/107:29:181
15997991910,5cyclictest0-21swapper/110:51:191
15997991910,4cyclictest0-21swapper/109:25:091
15997991910,4cyclictest0-21swapper/107:49:161
15997991910,3cyclictest0-21swapper/110:59:451
15997991910,2cyclictest0-21swapper/112:23:491
1599799190,12cyclictest0-21swapper/111:14:201
1599699197,9cyclictest0-21swapper/008:44:170
15996991919,0cyclictest0-21swapper/007:24:070
1599799185,9cyclictest0-21swapper/112:34:211
1599799185,6cyclictest0-21swapper/108:34:271
1599799184,9cyclictest0-21swapper/107:54:251
15997991810,5cyclictest100250irq/107-eth1-rx09:58:071
15997991810,3cyclictest0-21swapper/107:44:271
1599799180,10cyclictest0-21swapper/108:39:181
1599699187,5cyclictest0-21swapper/008:34:200
1599699184,6cyclictest0-21swapper/007:29:260
15996991811,6cyclictest25818-21apache210:34:460
15996991810,5cyclictest0-21swapper/008:09:170
15996991810,3cyclictest0-21swapper/008:24:240
15996991810,1cyclictest0-21swapper/007:34:210
2960221710,0sleep10-21swapper/109:06:141
1599799172,6cyclictest0-21swapper/108:54:341
15997991716,1cyclictest18774-21ssh10:22:521
15997991714,2cyclictest3419-21fschecks_count07:59:191
15997991710,7cyclictest0-21swapper/110:47:111
1599799170,10cyclictest0-21swapper/108:49:191
15996991711,5cyclictest25845-21apache211:29:450
15996991710,2cyclictest0-21swapper/011:27:490
1599799165,5cyclictest26447-21seq08:59:191
15996991615,1cyclictest25845-21apache209:09:060
15996991611,5cyclictest15994-21cyclictest08:56:340
15996991611,5cyclictest15994-21cyclictest08:19:170
15997991510,1cyclictest0-21swapper/107:19:181
15996991410,2cyclictest0-21swapper/008:29:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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