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2026-04-25 - 15:19
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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 Apr 25, 2026 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1618827957,17sleep10-21swapper/107:06:561
126132780,2sleep11657599cyclictest10:05:561
1618426554,7sleep00-21swapper/007:06:530
71642640,0sleep00-21swapper/011:21:070
16574993010,0cyclictest0-21swapper/011:18:440
16575992919,10cyclictest0-21swapper/110:20:231
1657599290,28cyclictest0-21swapper/109:21:391
1657599290,0cyclictest0-21swapper/109:27:391
16574992928,0cyclictest7-21ksoftirqd/007:19:060
1657599280,3cyclictest0-21swapper/111:32:311
1657599280,2cyclictest0-21swapper/112:33:411
16575992710,11cyclictest0-21swapper/110:33:061
1657599270,0cyclictest0-21swapper/112:15:331
16575992625,1cyclictest0-21swapper/107:18:091
16575992616,10cyclictest0-21swapper/112:08:371
16575992614,12cyclictest0-21swapper/109:42:271
16574992610,4cyclictest0-21swapper/008:59:390
1657599250,2cyclictest0-21swapper/112:35:261
1657499252,19cyclictest0-21swapper/010:44:190
16574992517,6cyclictest26421-21apache210:20:450
16574992511,5cyclictest0-21swapper/010:01:100
16575992410,14cyclictest0-21swapper/109:29:421
16574992423,0cyclictest0-21swapper/011:41:280
16574992418,3cyclictest0-21swapper/012:19:380
16574992417,6cyclictest23963-21rm12:24:180
16574992416,4cyclictest26394-21apache210:18:290
1657599239,9cyclictest0-21swapper/111:44:231
16575992311,5cyclictest0-21swapper/107:24:231
1657599231,12cyclictest0-21swapper/107:19:231
16575992310,6cyclictest0-21swapper/111:11:551
16575992310,4cyclictest0-21swapper/110:54:161
16575992310,0cyclictest0-21swapper/110:15:041
1657599230,2cyclictest0-21swapper/109:45:051
1657499235,17cyclictest7-21ksoftirqd/009:44:250
16574992323,0cyclictest0-21swapper/009:43:430
16574992322,1cyclictest7-21ksoftirqd/011:09:170
16574992319,3cyclictest26429-21kworker/0:209:09:250
16574992318,1cyclictest25332-21/usr/sbin/munin11:04:260
16574992310,8cyclictest0-21swapper/010:35:250
16574992310,0cyclictest0-21swapper/007:26:100
2645522210,0sleep10-21swapper/112:27:121
1657599223,8cyclictest0-21swapper/111:04:171
1657599222,5cyclictest2634-21/usr/sbin/munin09:14:161
16575992217,4cyclictest26394-21apache211:18:131
16575992210,6cyclictest0-21swapper/112:19:261
16575992210,6cyclictest0-21swapper/107:54:231
16575992210,5cyclictest0-21swapper/107:09:171
16575992210,1cyclictest0-21swapper/111:41:511
16574992218,3cyclictest26394-21apache208:19:480
16574992216,2cyclictest26394-21apache210:31:320
16574992210,6cyclictest0-21swapper/012:38:010
2453522110,0sleep10-21swapper/111:03:011
1657599214,9cyclictest0-21swapper/107:29:161
1657599212,13cyclictest17302-21latency11:34:211
16575992113,5cyclictest30326-21ssh11:50:111
16575992111,5cyclictest12740-21sshd10:48:131
16575992110,8cyclictest0-21swapper/112:12:491
16575992110,5cyclictest0-21swapper/110:25:381
16575992110,4cyclictest0-21swapper/112:01:291
1657499215,7cyclictest0-21swapper/010:59:260
1657499214,11cyclictest0-21swapper/012:09:230
16574992118,1cyclictest25355-21latency08:54:220
16574992111,7cyclictest0-21swapper/011:59:220
16574992110,5cyclictest0-21swapper/012:31:420
16574992110,4cyclictest0-21swapper/011:32:520
16574992110,10cyclictest0-21swapper/008:39:240
858622010,0sleep10-21swapper/110:00:471
1815722010,0sleep00-21swapper/007:12:140
16575992011,8cyclictest30433-21diskmemload09:49:231
16575992010,6cyclictest0-21swapper/111:24:171
16575992010,6cyclictest0-21swapper/107:39:161
16575992010,3cyclictest0-21swapper/109:10:581
16575992010,2cyclictest0-21swapper/108:09:171
1657499205,11cyclictest0-21swapper/008:24:170
1657499205,10cyclictest0-21swapper/011:44:160
1657499202,11cyclictest0-21swapper/008:29:210
16574992018,1cyclictest7-21ksoftirqd/007:19:250
16574992016,4cyclictest0-21swapper/011:27:230
16574992016,1cyclictest7-21ksoftirqd/010:51:570
16574992012,6cyclictest0-21swapper/011:34:170
16574992011,4cyclictest3864-21timerwakeupswit09:14:260
16574992010,5cyclictest0-21swapper/010:09:170
16574992010,10cyclictest0-21swapper/008:45:270
16574992010,0cyclictest0-21swapper/009:24:110
3002021910,0sleep10-21swapper/109:05:001
223221910,0sleep00-21swapper/011:56:020
1903721910,0sleep10-21swapper/108:39:161
1734421910,0sleep10-21swapper/110:12:491
1657599199,5cyclictest0-21swapper/108:19:201
16575991918,1cyclictest0-21swapper/111:19:391
16575991910,6cyclictest0-21swapper/108:54:271
16575991910,5cyclictest0-21swapper/111:54:231
16575991910,5cyclictest0-21swapper/108:44:171
16575991910,4cyclictest0-21swapper/110:51:521
16575991910,4cyclictest0-21swapper/110:39:171
1657599190,9cyclictest0-21swapper/108:29:161
1657499198,2cyclictest4046-21/usr/sbin/munin07:59:200
1657499194,9cyclictest0-21swapper/010:04:170
1657499194,9cyclictest0-21swapper/007:29:200
1657499193,7cyclictest0-21swapper/009:57:080
1657499193,13cyclictest0-21swapper/007:49:170
16574991911,4cyclictest0-21swapper/007:39:170
16574991910,5cyclictest26429-21kworker/0:210:24:130
16574991910,4cyclictest0-21swapper/012:17:150
16574991910,3cyclictest0-21swapper/012:04:250
16574991910,3cyclictest0-21swapper/010:54:180
30812188,0sleep10-21swapper/110:34:281
16575991818,0cyclictest30433-21diskmemload09:34:081
16575991810,4cyclictest0-21swapper/107:44:191
16575991810,2cyclictest0-21swapper/108:14:161
1657499182,15cyclictest0-21swapper/007:44:180
16574991817,1cyclictest7-21ksoftirqd/009:29:230
16574991810,4cyclictest0-21swapper/008:04:170
16574991810,3cyclictest0-21swapper/007:36:460
16574991810,2cyclictest0-21swapper/010:39:070
16574991810,2cyclictest0-21swapper/009:50:410
1657499180,10cyclictest0-21swapper/009:19:430
3120921710,0sleep00-21swapper/011:52:010
1657599173,8cyclictest0-21swapper/109:54:201
1657599172,9cyclictest0-21swapper/108:34:191
16575991710,5cyclictest0-21swapper/107:34:271
16575991710,4cyclictest0-21swapper/108:05:511
16575991710,3cyclictest0-21swapper/108:49:211
1657499175,9cyclictest0-21swapper/007:54:260
1657499174,5cyclictest28677-21/usr/sbin/munin09:04:250
16574991710,4cyclictest0-21swapper/009:34:190
16574991710,3cyclictest0-21swapper/008:49:170
16574991710,2cyclictest0-21swapper/008:34:190
1657599164,8cyclictest0-21swapper/108:59:211
1657599162,8cyclictest0-21swapper/107:59:251
16575991610,4cyclictest0-21swapper/107:49:171
1657499160,11cyclictest0-21swapper/008:14:170
16575991510,4cyclictest0-21swapper/108:24:161
1657499152,7cyclictest0-21swapper/008:09:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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