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2026-06-18 - 00:14
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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 all highest latencies:
System rackcslot2.osadl.org (updated Wed Jun 17, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2294721070,0sleep022951-21sort07:28:520
1468626754,8sleep10-21swapper/107:05:341
1466226754,8sleep00-21swapper/007:05:190
19352640,0sleep01933-21seq12:08:500
15166993910,0cyclictest0-21swapper/109:21:411
15166993333,0cyclictest0-21swapper/111:45:161
15166993210,3cyclictest0-21swapper/110:49:351
15166993131,0cyclictest0-21swapper/110:07:071
15166993010,5cyclictest0-21swapper/111:02:191
15166993010,1cyclictest0-21swapper/109:26:031
15166992910,11cyclictest0-21swapper/107:18:511
15166992810,1cyclictest0-21swapper/111:24:281
1516699280,4cyclictest0-21swapper/110:13:561
1516699280,24cyclictest9765-21/usr/sbin/munin10:08:501
15165992826,1cyclictest0-21swapper/009:03:220
15166992721,3cyclictest24987-21apache212:33:551
15166992710,4cyclictest0-21swapper/112:00:331
1516699270,0cyclictest0-21swapper/111:09:221
15165992722,1cyclictest0-21swapper/009:26:180
15165992710,16cyclictest0-21swapper/007:16:310
1516599270,21cyclictest0-21swapper/009:46:020
1516599270,16cyclictest0-21swapper/010:52:590
15166992625,1cyclictest0-21swapper/109:54:401
15166992610,4cyclictest0-21swapper/110:36:161
15165992619,6cyclictest24987-21apache210:28:330
15165992610,8cyclictest0-21swapper/008:33:580
1516599260,1cyclictest0-21swapper/011:07:250
15166992510,7cyclictest0-21swapper/112:18:401
15166992510,0cyclictest0-21swapper/109:58:571
15165992524,1cyclictest0-21swapper/010:44:160
15165992523,1cyclictest9954-21/usr/sbin/munin08:19:000
1516599251,23cyclictest0-21swapper/012:34:400
15166992419,4cyclictest3410-21ssh10:43:501
15166992411,6cyclictest636-21nscd09:36:101
1516699240,1cyclictest0-21swapper/111:04:031
15165992422,2cyclictest24987-21apache210:29:380
1516599241,2cyclictest0-21swapper/009:42:170
15165992410,3cyclictest0-21swapper/009:49:590
1525522310,0sleep10-21swapper/112:25:401
15166992318,4cyclictest24987-21apache210:24:381
15166992318,3cyclictest11870-21/usr/sbin/munin08:23:541
15166992310,1cyclictest0-21swapper/110:30:091
1516699230,13cyclictest0-21swapper/107:43:511
15165992321,1cyclictest0-21swapper/008:39:090
15165992319,3cyclictest0-21swapper/011:24:320
1516599231,8cyclictest0-21swapper/012:07:160
1516599231,2cyclictest30139-21ssh10:34:510
15165992310,5cyclictest0-21swapper/009:30:220
15166992216,3cyclictest25014-21apache212:07:481
15166992212,6cyclictest0-21swapper/110:20:231
15166992211,3cyclictest0-21swapper/107:24:011
1516599224,10cyclictest0-21swapper/008:24:020
15165992221,0cyclictest81ktimersoftd/009:13:510
15165992215,0cyclictest100350irq/108-eth1-tx10:10:120
15165992213,6cyclictest0-21swapper/008:28:590
15165992213,5cyclictest0-21swapper/011:47:130
15165992210,5cyclictest0-21swapper/011:28:470
15165992210,4cyclictest0-21swapper/011:38:440
15165992210,4cyclictest0-21swapper/011:33:510
15165992210,1cyclictest0-21swapper/011:20:300
15165992210,0cyclictest0-21swapper/009:12:410
227852210,1sleep10-21swapper/111:53:161
15166992120,0cyclictest231ktimersoftd/112:18:061
15166992119,0cyclictest0-21swapper/109:03:511
15166992110,8cyclictest0-21swapper/107:59:591
15166992110,0cyclictest0-21swapper/109:51:041
1516599215,12cyclictest0-21swapper/009:53:500
1516599213,9cyclictest0-21swapper/012:23:550
1516599212,7cyclictest0-21swapper/010:03:540
15165992121,0cyclictest0-21swapper/009:20:340
15165992119,2cyclictest0-21swapper/007:48:470
15165992110,3cyclictest0-21swapper/009:58:460
15165992110,1cyclictest0-21swapper/010:20:500
2307622010,0sleep10-21swapper/108:52:231
15166992015,3cyclictest24987-21apache210:39:321
15166992013,4cyclictest24987-21apache211:18:541
15166992013,3cyclictest947-21sendmail-mta07:30:161
15166992010,7cyclictest0-21swapper/107:53:521
15166992010,4cyclictest0-21swapper/111:53:561
15166992010,3cyclictest0-21swapper/112:28:551
15166992010,3cyclictest0-21swapper/109:38:531
15166992010,3cyclictest0-21swapper/109:08:521
1516599206,8cyclictest0-21swapper/010:53:490
1516599205,8cyclictest0-21swapper/007:53:530
1516599203,13cyclictest0-21swapper/010:58:580
15165992010,4cyclictest0-21swapper/012:00:550
15165992010,4cyclictest0-21swapper/010:15:470
15165992010,1cyclictest24453-21ssh11:11:280
3192321910,0sleep00-21swapper/010:38:400
1516699195,8cyclictest0-21swapper/109:29:001
1516699194,11cyclictest0-21swapper/111:32:551
15166991916,2cyclictest636-21nscd11:15:391
15166991910,5cyclictest0-21swapper/111:34:491
15166991910,4cyclictest0-21swapper/112:09:251
15166991910,3cyclictest0-21swapper/109:16:451
15166991910,3cyclictest0-21swapper/107:13:521
15165991918,0cyclictest81ktimersoftd/007:08:570
15165991913,4cyclictest802-21apache211:56:280
15165991910,6cyclictest0-21swapper/008:03:590
15165991910,5cyclictest0-21swapper/012:22:090
15165991910,1cyclictest0-21swapper/012:18:090
1516699183,7cyclictest0-21swapper/108:13:531
15166991815,1cyclictest100150irq/106-eth1-rx11:42:131
15166991810,5cyclictest0-21swapper/110:53:491
15166991810,5cyclictest0-21swapper/108:13:251
15166991810,2cyclictest0-21swapper/108:03:531
15166991810,2cyclictest0-21swapper/107:08:581
1516699180,8cyclictest0-21swapper/109:43:511
1516599185,5cyclictest0-21swapper/012:28:500
1516599183,14cyclictest8658-21missed_timers08:13:560
15165991816,1cyclictest15163-21cyclictest11:52:000
15165991810,4cyclictest0-21swapper/008:53:510
15165991810,2cyclictest0-21swapper/009:03:580
777321710,0sleep00-21swapper/008:12:560
1516699176,5cyclictest0-21swapper/108:28:521
1516699173,8cyclictest0-21swapper/108:38:571
15166991711,4cyclictest802-21apache208:35:101
15166991710,4cyclictest0-21swapper/107:48:541
15166991710,3cyclictest0-21swapper/107:33:531
1516599174,5cyclictest0-21swapper/008:43:590
1516599173,6cyclictest0-21swapper/007:38:510
15165991710,5cyclictest0-21swapper/009:33:530
15165991710,4cyclictest0-21swapper/011:13:540
15165991710,2cyclictest0-21swapper/007:18:530
1516699162,11cyclictest0-21swapper/108:43:541
15166991610,4cyclictest0-21swapper/108:58:541
1516599167,4cyclictest29041-21cstates07:43:520
1516599163,5cyclictest22592-21ls08:49:000
15165991610,1cyclictest0-21swapper/008:02:560
1516699153,7cyclictest0-21swapper/108:53:551
15166991513,1cyclictest25014-21apache208:18:431
1516599151,9cyclictest0-21swapper/007:33:530
15165991511,1cyclictest0-21swapper/007:23:530
15166991410,0cyclictest0-21swapper/107:39:341
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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