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2026-06-27 - 22:14
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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 Sat Jun 27, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
714421160,0sleep10-21swapper/111:39:561
1199626857,7sleep00-21swapper/007:06:440
1178526857,7sleep10-21swapper/107:04:321
3412650,0sleep00-21swapper/012:18:210
12355993117,3cyclictest0-21swapper/110:33:541
12355992910,17cyclictest0-21swapper/110:16:311
12355992910,0cyclictest0-21swapper/109:38:151
12354992927,1cyclictest4166-21ssh09:21:120
12355992810,8cyclictest0-21swapper/110:10:541
12355992725,0cyclictest0-21swapper/107:53:171
12354992710,15cyclictest0-21swapper/009:48:340
1235599261,7cyclictest6769-21cron10:53:341
1235499260,1cyclictest26465-21apache_accesses09:08:470
12355992510,8cyclictest0-21swapper/109:40:111
12355992510,7cyclictest0-21swapper/108:03:461
1235499254,20cyclictest7-21ksoftirqd/010:08:160
1235499252,22cyclictest0-21swapper/011:04:360
1235599245,8cyclictest26218-21diskmemload11:23:471
1235599241,22cyclictest2732-21kworker/1:012:36:351
12355992410,9cyclictest0-21swapper/110:53:461
12355992410,12cyclictest0-21swapper/109:14:091
1235499242,21cyclictest0-21swapper/010:38:460
12354992420,4cyclictest22170-21apache211:56:030
12354992420,2cyclictest7-21ksoftirqd/007:23:480
12354992413,7cyclictest0-21swapper/009:29:400
12354992410,5cyclictest0-21swapper/012:31:390
1235499240,8cyclictest0-21swapper/007:58:450
1235499240,23cyclictest0-21swapper/009:25:200
12355992312,9cyclictest10050irq/110-ahci[0010:33:341
12355992311,5cyclictest0-21swapper/111:21:431
1235599230,21cyclictest31963-21/usr/sbin/munin10:43:551
12354992321,1cyclictest0-21swapper/009:41:500
1235499230,17cyclictest27570-21kworker/u4:212:25:130
1235599229,10cyclictest0-21swapper/111:36:181
1235599228,8cyclictest0-21swapper/110:41:061
1235599227,7cyclictest17744-21fschecks_time10:23:491
1235599222,13cyclictest0-21swapper/109:03:481
12355992218,3cyclictest22170-21apache209:48:111
12355992210,8cyclictest0-21swapper/108:53:461
1235599220,14cyclictest26218-21diskmemload11:04:561
1235599220,13cyclictest0-21swapper/110:18:511
1235499223,11cyclictest19565-21/usr/sbin/munin11:58:490
12354992216,5cyclictest22192-21apache210:49:470
1235499221,20cyclictest0-21swapper/010:28:540
12354992210,6cyclictest0-21swapper/012:33:540
12354992210,5cyclictest0-21swapper/011:48:540
12354992210,5cyclictest0-21swapper/007:08:500
1235499220,5cyclictest26218-21diskmemload10:13:530
1555222110,0sleep00-21swapper/009:36:530
1235599218,6cyclictest636-21nscd11:29:531
1235599215,9cyclictest0-21swapper/112:28:521
1235599215,14cyclictest0-21swapper/112:08:521
1235599213,12cyclictest0-21swapper/107:43:491
12355992120,1cyclictest0-21swapper/111:47:121
12355992110,2cyclictest0-21swapper/111:10:011
1235599210,20cyclictest0-21swapper/109:51:421
1235599210,16cyclictest0-21swapper/109:11:301
12354992119,1cyclictest495-21mailstats10:43:540
12354992119,1cyclictest29403-21timerwakeupswit11:23:560
12354992111,7cyclictest100150irq/106-eth1-rx11:47:120
12354992110,9cyclictest0-21swapper/009:59:200
12354992110,8cyclictest0-21swapper/007:43:500
12354992110,5cyclictest0-21swapper/011:09:430
12354992110,5cyclictest0-21swapper/010:33:460
1235499210,9cyclictest0-21swapper/012:08:480
2583722010,0sleep00-21swapper/009:04:480
1689522010,0sleep00-21swapper/010:22:520
1235599209,3cyclictest0-21swapper/107:23:531
12355992020,0cyclictest0-21swapper/110:03:481
12355992012,8cyclictest23251-21kworker/1:009:25:431
12355992012,8cyclictest0-21swapper/108:30:491
12355992012,2cyclictest100250irq/107-eth1-rx11:59:371
12355992011,1cyclictest0-21swapper/112:05:151
12355992010,6cyclictest0-21swapper/109:28:501
12355992010,5cyclictest0-21swapper/107:13:471
12355992010,4cyclictest0-21swapper/107:08:491
12355992010,3cyclictest0-21swapper/108:21:001
12355992010,2cyclictest0-21swapper/109:18:441
1235499206,13cyclictest0-21swapper/008:33:470
12354992010,7cyclictest0-21swapper/011:29:350
12354992010,5cyclictest0-21swapper/010:12:360
1235599193,11cyclictest0-21swapper/107:58:541
12355991917,1cyclictest31922-21ls09:58:501
12355991916,1cyclictest22192-21apache211:53:531
12355991914,3cyclictest12352-21cyclictest08:43:521
12355991911,5cyclictest0-21swapper/112:18:461
12355991910,8cyclictest100250irq/107-eth1-rx09:56:061
12355991910,6cyclictest0-21swapper/108:58:471
12355991910,4cyclictest0-21swapper/111:52:221
12355991910,4cyclictest0-21swapper/111:13:491
12355991910,4cyclictest0-21swapper/107:54:391
12355991910,3cyclictest0-21swapper/112:13:531
12355991910,3cyclictest0-21swapper/111:01:121
1235499193,11cyclictest0-21swapper/008:08:520
12354991912,2cyclictest100150irq/106-eth1-rx11:37:230
12354991910,4cyclictest0-21swapper/011:18:520
12354991910,3cyclictest0-21swapper/007:28:520
12354991910,1cyclictest0-21swapper/008:06:090
1235499190,1cyclictest0-21swapper/009:57:050
1235499190,10cyclictest0-21swapper/008:53:540
1235499190,0cyclictest0-21swapper/008:45:380
1235599182,12cyclictest0-21swapper/108:13:471
1235599181,14cyclictest0-21swapper/108:08:551
12355991810,5cyclictest0-21swapper/107:18:461
12355991810,3cyclictest0-21swapper/112:26:171
1235499184,8cyclictest0-21swapper/010:59:300
1235499183,5cyclictest30767-21idleruntime09:13:480
12354991818,0cyclictest22170-21apache210:57:120
12354991811,4cyclictest0-21swapper/007:18:380
12354991810,5cyclictest0-21swapper/008:13:520
12354991810,4cyclictest0-21swapper/012:19:570
12354991810,4cyclictest0-21swapper/008:23:550
12354991810,3cyclictest0-21swapper/010:23:480
12354991810,2cyclictest0-21swapper/007:36:330
12354991810,1cyclictest0-21swapper/011:42:530
1235599173,8cyclictest0-21swapper/108:33:571
12355991715,1cyclictest19333-21ls08:48:531
12355991710,3cyclictest0-21swapper/108:38:471
12355991710,2cyclictest0-21swapper/107:28:471
12354991711,2cyclictest0-21swapper/007:38:480
12354991710,4cyclictest0-21swapper/008:22:190
12354991710,4cyclictest0-21swapper/007:53:490
12354991710,0cyclictest0-21swapper/008:48:520
12355991610,2cyclictest0-21swapper/107:33:351
12354991616,0cyclictest0-21swapper/012:03:580
12354991610,5cyclictest0-21swapper/008:38:470
12354991610,3cyclictest0-21swapper/011:13:450
12354991610,0cyclictest0-21swapper/009:48:350
1063021610,0sleep10-21swapper/108:26:511
1235599154,1cyclictest1199-21runrttasks07:39:471
1235499153,7cyclictest0-21swapper/007:48:460
12354991510,2cyclictest0-21swapper/009:01:580
1235499150,10cyclictest0-21swapper/008:28:530
12354991410,1cyclictest0-21swapper/007:13:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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