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2026-09-10 - 02:20
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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 792 highest latencies:
System rackcslot2.osadl.org (updated Wed Sep 09, 2026 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1557527157,9sleep10-21swapper/107:06:391
1551327149,17sleep00-21swapper/007:06:000
26062700,0sleep00-21swapper/011:33:090
213052580,1sleep1231ktimersoftd/111:13:101
15880993710,26cyclictest5493-21kworker/1:110:10:201
15880993110,2cyclictest0-21swapper/111:00:461
15880992910,0cyclictest0-21swapper/109:15:541
1588099290,7cyclictest0-21swapper/110:18:111
15879992910,0cyclictest0-21swapper/009:42:510
15880992827,0cyclictest231ktimersoftd/108:43:101
15880992827,0cyclictest231ktimersoftd/108:43:101
15880992810,1cyclictest0-21swapper/110:04:091
15880992810,0cyclictest0-21swapper/111:06:471
1588099280,1cyclictest0-21swapper/110:45:221
15880992712,13cyclictest30903-21kworker/1:208:56:521
15880992710,1cyclictest0-21swapper/109:37:401
15879992725,1cyclictest770-21irqbalance11:07:560
15879992724,0cyclictest0-21swapper/010:06:020
15879992710,16cyclictest0-21swapper/010:02:230
1588099250,24cyclictest30903-21kworker/1:209:11:341
15879992511,8cyclictest636-21nscd10:30:140
15880992420,1cyclictest100250irq/107-eth1-rx11:24:371
15880992413,3cyclictest802-21apache208:17:371
1588099241,1cyclictest6973-21/usr/sbin/munin10:53:061
15880992410,1cyclictest0-21swapper/111:10:001
1588099240,23cyclictest0-21swapper/110:36:001
1588099240,0cyclictest0-21swapper/107:10:581
15879992424,0cyclictest0-21swapper/012:25:560
15879992419,4cyclictest0-21swapper/010:08:370
15880992323,0cyclictest0-21swapper/109:39:171
15880992323,0cyclictest0-21swapper/109:24:091
15880992310,5cyclictest0-21swapper/107:38:091
15880992310,10cyclictest0-21swapper/112:03:021
1587999233,12cyclictest0-21swapper/009:08:210
15879992323,0cyclictest0-21swapper/009:27:000
1587999230,0cyclictest0-21swapper/009:03:100
1588099226,13cyclictest0-21swapper/112:08:061
15880992222,0cyclictest0-21swapper/109:31:271
15879992222,0cyclictest0-21swapper/007:43:160
15879992220,1cyclictest802-21apache212:30:510
15879992210,8cyclictest0-21swapper/008:38:050
1587999220,1cyclictest0-21swapper/010:44:590
1588099217,13cyclictest0-21swapper/112:16:471
15880992113,5cyclictest5493-21kworker/1:110:52:361
15880992111,9cyclictest0-21swapper/110:38:151
15880992110,3cyclictest0-21swapper/111:43:081
1587999213,4cyclictest17185-21ls11:53:120
15879992111,8cyclictest100250irq/107-eth1-rx09:50:080
15879992110,2cyclictest0-21swapper/008:02:110
1588099203,9cyclictest0-21swapper/111:28:071
1588099202,3cyclictest0-21swapper/111:52:371
15880992020,0cyclictest0-21swapper/110:01:491
15880992018,1cyclictest25753-21apache209:43:261
15880992010,1cyclictest0-21swapper/112:36:441
1587999202,16cyclictest0-21swapper/011:58:160
15879992020,0cyclictest0-21swapper/008:21:250
15879992019,0cyclictest7-21ksoftirqd/009:13:070
15879992012,4cyclictest29801-21diskmemload10:38:130
15879992010,7cyclictest0-21swapper/007:38:040
15879992010,6cyclictest0-21swapper/008:33:070
15879992010,5cyclictest0-21swapper/007:11:210
15879992010,3cyclictest0-21swapper/007:52:380
1353222010,0sleep00-21swapper/010:15:250
1588099195,10cyclictest0-21swapper/111:58:061
1588099194,11cyclictest0-21swapper/108:03:131
1588099194,10cyclictest0-21swapper/112:23:131
1588099193,9cyclictest0-21swapper/107:23:061
1588099193,10cyclictest0-21swapper/109:03:081
15880991918,1cyclictest0-21swapper/112:19:281
15880991914,4cyclictest25753-21apache207:48:481
15880991913,5cyclictest100150irq/106-eth1-rx12:28:531
15880991912,0cyclictest16712-21fschecks_count08:33:091
15880991910,6cyclictest0-21swapper/107:13:091
15880991910,5cyclictest0-21swapper/111:53:071
15880991910,5cyclictest0-21swapper/110:13:101
15880991910,3cyclictest0-21swapper/108:38:061
15880991910,3cyclictest0-21swapper/108:28:081
15880991910,2cyclictest0-21swapper/109:48:141
15880991910,0cyclictest0-21swapper/111:34:451
15880991910,0cyclictest0-21swapper/109:18:081
1587999195,13cyclictest81ktimersoftd/010:33:180
1587999194,11cyclictest0-21swapper/011:38:100
1587999193,13cyclictest0-21swapper/007:18:090
1587999192,11cyclictest0-21swapper/008:03:110
15879991915,3cyclictest8845-21ssh10:54:350
15879991915,3cyclictest802-21apache209:22:070
15879991915,3cyclictest0-21swapper/012:21:540
1587999191,13cyclictest0-21swapper/009:28:120
15879991910,3cyclictest0-21swapper/011:18:060
894421810,3sleep10-21swapper/111:42:161
1588099185,9cyclictest0-21swapper/108:58:091
15880991812,3cyclictest0-21swapper/107:28:121
15880991811,4cyclictest5493-21kworker/1:111:20:221
15880991811,4cyclictest0-21swapper/110:25:451
15880991810,6cyclictest0-21swapper/107:43:071
15880991810,4cyclictest0-21swapper/110:29:151
15880991810,4cyclictest0-21swapper/108:50:131
15880991810,3cyclictest0-21swapper/107:58:081
15880991810,3cyclictest0-21swapper/107:18:101
1587999189,5cyclictest0-21swapper/011:44:350
15879991817,0cyclictest7-21ksoftirqd/008:13:150
15879991815,2cyclictest0-21swapper/010:58:270
15879991812,4cyclictest10050irq/110-ahci[0009:35:220
15879991812,1cyclictest0-21swapper/012:03:130
15879991811,4cyclictest81ktimersoftd/011:29:000
15879991811,3cyclictest15494-21latency10:18:120
15879991810,5cyclictest0-21swapper/011:14:450
15879991810,4cyclictest0-21swapper/011:03:100
15879991810,4cyclictest0-21swapper/009:46:440
15879991810,3cyclictest0-21swapper/012:07:570
15879991810,3cyclictest0-21swapper/010:48:070
15879991810,0cyclictest0-21swapper/008:48:090
1587999180,8cyclictest0-21swapper/007:13:130
1588099175,11cyclictest0-21swapper/108:08:111
1588099173,10cyclictest0-21swapper/108:23:061
1588099172,10cyclictest0-21swapper/107:53:151
15880991711,6cyclictest30903-21kworker/1:209:54:041
1587999172,8cyclictest29801-21diskmemload09:53:090
15879991715,1cyclictest7-21ksoftirqd/012:33:090
15879991712,2cyclictest802-21apache212:13:050
15879991711,5cyclictest0-21swapper/011:48:000
15879991711,4cyclictest25771-21apache210:23:030
15879991710,1cyclictest0-21swapper/011:23:200
1587999165,9cyclictest0-21swapper/007:53:070
1587999164,6cyclictest0-21swapper/007:28:070
15879991610,2cyclictest0-21swapper/007:32:560
1587999160,5cyclictest0-21swapper/007:23:070
1588099151,9cyclictest0-21swapper/107:33:071
15880991510,5cyclictest0-21swapper/108:22:381
1587999158,2cyclictest0-21swapper/008:47:030
1587999158,2cyclictest0-21swapper/008:47:030
1587999153,7cyclictest0-21swapper/008:23:130
1587999152,9cyclictest0-21swapper/008:58:090
1587999152,3cyclictest91rcu_preempt08:08:130
1587999150,8cyclictest0-21swapper/008:28:130
1587999140,1cyclictest24136-21/usr/sbin/munin08:53:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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