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2026-06-12 - 08:26
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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 376 highest latencies:
System rackcslot2.osadl.org (updated Fri Jun 12, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2189027933,41sleep10-21swapper/119:05:521
2189527236,31sleep00-21swapper/019:05:550
259762640,1sleep10-21swapper/122:19:261
22341994512,29cyclictest22339-21cyclictest22:58:560
22341994210,31cyclictest0-21swapper/023:05:560
22341994210,31cyclictest0-21swapper/022:57:050
22341994210,31cyclictest0-21swapper/022:47:510
22341994210,31cyclictest0-21swapper/000:14:410
22341994110,30cyclictest0-21swapper/022:24:100
22341994110,30cyclictest0-21swapper/022:16:070
22341994110,30cyclictest0-21swapper/020:23:340
22341994110,30cyclictest0-21swapper/019:38:540
22341994110,30cyclictest0-21swapper/019:36:530
22341994110,12cyclictest0-21swapper/019:54:040
22341994010,30cyclictest0-21swapper/000:12:580
22341994010,29cyclictest0-21swapper/023:30:500
22341994010,29cyclictest0-21swapper/021:51:090
22341994010,29cyclictest0-21swapper/021:38:570
22341994010,29cyclictest0-21swapper/019:43:580
22341994010,29cyclictest0-21swapper/019:18:570
22341994010,28cyclictest0-21swapper/022:30:520
22341993910,29cyclictest0-21swapper/023:51:240
22341993910,28cyclictest0-21swapper/023:21:440
22341993910,28cyclictest0-21swapper/021:44:260
22341993910,28cyclictest0-21swapper/021:38:360
22341993910,28cyclictest0-21swapper/019:14:390
22341993910,28cyclictest0-21swapper/000:20:150
22341993910,26cyclictest0-21swapper/022:20:520
22341993910,25cyclictest0-21swapper/000:31:550
22341993910,23cyclictest0-21swapper/023:11:250
22341993810,28cyclictest0-21swapper/021:19:280
22341993810,28cyclictest0-21swapper/000:34:260
22341993810,27cyclictest0-21swapper/023:46:070
22341993810,25cyclictest0-21swapper/023:14:290
22341993810,24cyclictest0-21swapper/023:39:420
22341993810,22cyclictest0-21swapper/023:33:530
22341993710,26cyclictest0-21swapper/022:05:210
22341993710,26cyclictest0-21swapper/020:29:310
22341993710,26cyclictest0-21swapper/019:53:260
22341993710,25cyclictest0-21swapper/021:28:330
22341993710,24cyclictest0-21swapper/000:23:580
22341993610,26cyclictest0-21swapper/021:33:260
22341993610,25cyclictest0-21swapper/023:55:130
22341993610,25cyclictest0-21swapper/021:53:560
22341993610,25cyclictest0-21swapper/019:58:590
22341993510,25cyclictest0-21swapper/020:16:250
22341993510,24cyclictest0-21swapper/022:03:430
22341993510,13cyclictest18499-21ssh22:09:430
22341993510,12cyclictest0-21swapper/021:14:410
22341993410,24cyclictest0-21swapper/022:40:170
22341993410,17cyclictest0-21swapper/020:34:010
22341993310,19cyclictest3978-21ssh00:01:320
22341993210,21cyclictest0-21swapper/022:35:300
22341993210,19cyclictest0-21swapper/020:44:410
22341993210,18cyclictest0-21swapper/022:53:390
2234199311,10cyclictest0-21swapper/000:04:010
22342993010,19cyclictest0-21swapper/100:27:591
22341993010,4cyclictest0-21swapper/019:23:480
22341993010,20cyclictest0-21swapper/020:11:270
22341993010,19cyclictest0-21swapper/023:26:160
22341992910,19cyclictest0-21swapper/020:39:030
22341992910,18cyclictest0-21swapper/021:03:520
22342992810,17cyclictest8949-21ssh21:58:331
22341992810,17cyclictest0-21swapper/021:03:360
22341992710,16cyclictest0-21swapper/020:55:380
22341992710,15cyclictest0-21swapper/021:11:500
22341992710,15cyclictest0-21swapper/019:31:190
2234299266,18cyclictest0-21swapper/122:58:491
2234299265,16cyclictest27034-21ssh23:04:431
22342992510,7cyclictest0-21swapper/119:33:541
22342992510,14cyclictest31735-21kworker/1:022:56:441
22342992510,13cyclictest0-21swapper/122:42:581
22342992510,0cyclictest0-21swapper/123:19:071
22342992413,1cyclictest744-21snmpd23:54:201
2234199244,18cyclictest0-21swapper/020:48:540
22341992410,11cyclictest0-21swapper/019:12:360
22342992317,3cyclictest14009-21apache200:36:341
22342992314,5cyclictest636-21nscd22:34:371
22342992310,6cyclictest0-21swapper/121:28:431
22342992310,1cyclictest0-21swapper/123:35:391
2234299224,14cyclictest0-21swapper/100:29:031
22342992217,5cyclictest0-21swapper/100:02:401
22342992210,8cyclictest0-21swapper/121:03:531
22342992210,7cyclictest0-21swapper/122:05:391
22342992210,6cyclictest0-21swapper/122:13:551
22342992210,5cyclictest0-21swapper/121:39:121
22342992210,5cyclictest0-21swapper/119:23:531
22341992210,11cyclictest0-21swapper/020:04:330
2234299214,9cyclictest0-21swapper/123:16:311
2234299214,8cyclictest3532-21diskmemload00:13:531
2234299213,17cyclictest0-21swapper/120:59:001
22342992121,0cyclictest0-21swapper/120:27:491
22342992118,2cyclictest22339-21cyclictest21:37:081
22342992113,3cyclictest14000-21apache220:37:191
22342992110,4cyclictest0-21swapper/121:10:221
2234299210,9cyclictest0-21swapper/100:18:581
2234299210,18cyclictest0-21swapper/120:48:371
1749022110,0sleep10-21swapper/122:53:121
2234299204,7cyclictest0-21swapper/120:18:531
2234299204,11cyclictest0-21swapper/100:08:581
2234299202,13cyclictest0-21swapper/123:52:071
22342992014,4cyclictest14009-21apache223:31:061
22342992012,5cyclictest14000-21apache223:45:251
22342992011,6cyclictest11893-21ssh22:44:211
22342992010,8cyclictest0-21swapper/123:23:561
22342992010,6cyclictest0-21swapper/119:18:531
22342992010,5cyclictest0-21swapper/122:31:051
22342992010,4cyclictest0-21swapper/121:22:271
22342992010,1cyclictest0-21swapper/121:17:561
22342992010,1cyclictest0-21swapper/119:13:521
2184922010,0sleep10-21swapper/123:42:121
1071322010,0sleep10-21swapper/121:59:171
2234299194,6cyclictest0-21swapper/121:43:531
2234299193,8cyclictest0-21swapper/120:13:531
2234299192,16cyclictest31735-21kworker/1:020:12:341
22342991917,1cyclictest28398-21apache_accesses20:48:531
22342991914,0cyclictest5583-21fschecks_count19:48:541
22342991910,6cyclictest0-21swapper/100:05:531
22342991910,5cyclictest0-21swapper/122:08:531
2234299183,8cyclictest0-21swapper/119:58:541
2234299182,10cyclictest4176-21/usr/sbin/munin19:44:001
22342991811,2cyclictest0-21swapper/119:39:001
22342991810,5cyclictest0-21swapper/120:38:531
22342991810,4cyclictest0-21swapper/120:03:551
22342991810,4cyclictest0-21swapper/119:08:531
22342991810,3cyclictest0-21swapper/119:53:531
22342991810,2cyclictest0-21swapper/122:24:071
22342991810,1cyclictest0-21swapper/120:28:541
22341991810,8cyclictest0-21swapper/020:23:520
2234299176,6cyclictest30493-21/usr/sbin/munin19:28:561
2234299171,11cyclictest100450irq/109-eth1-tx21:48:571
22342991710,1cyclictest0-21swapper/123:10:391
22342991710,0cyclictest0-21swapper/121:28:521
2234299163,9cyclictest0-21swapper/120:56:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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