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2025-12-13 - 18:18
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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 rackeslot2.osadl.org (updated Sat Dec 13, 2025 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
92536421690,2sleep3925356-21turbostat11:15:003
6943682970,1sleep1694369-21grep08:03:431
6943682970,1sleep1694369-21grep08:03:431
8290092960,2sleep30-21swapper/309:55:023
7377432500,1sleep00-21swapper/008:38:490
7814972240,1sleep20-21swapper/209:18:382
627581992219,1cyclictest0-21swapper/211:00:012
627580992118,2cyclictest1-21systemd07:15:001
62757999198,6cyclictest0-21swapper/011:43:380
627581991815,1cyclictest0-21swapper/210:38:382
627580991815,2cyclictest907211-21latency_hist11:00:011
627580991815,2cyclictest1326-21systemd-logind09:10:011
62757999189,5cyclictest781296-21aten_repower_fr09:18:370
627580991714,2cyclictest986485-21systemd-run12:05:001
627580991714,2cyclictest1016903-21grep12:30:021
627580991714,2cyclictest0-21swapper/111:15:011
627580991714,2cyclictest0-21swapper/109:05:011
627580991713,3cyclictest987618-21fschecks_count12:08:401
627579991714,2cyclictest0-21swapper/010:00:010
627579991713,3cyclictest935441-21kthreadcore11:23:430
627579991713,3cyclictest925709-21gdbus11:15:010
627579991713,3cyclictest1288-1atopacctd12:18:490
627579991710,2cyclictest684629-21aten_repower_cu07:58:340
627581991614,1cyclictest0-21swapper/209:05:012
627581991613,1cyclictest0-21swapper/211:33:492
627581991613,1cyclictest0-21swapper/209:55:002
627581991613,1cyclictest0-21swapper/208:30:012
627581991613,1cyclictest0-21swapper/208:13:382
627580991613,2cyclictest834094-21open_files09:58:481
627579991614,1cyclictest986448-21ls12:05:000
627579991613,2cyclictest864963-21cut10:25:000
627579991613,2cyclictest745120-21cpuspeed_turbos08:48:390
627579991613,2cyclictest745120-21cpuspeed_turbos08:48:390
627579991613,2cyclictest642759-21cut07:23:380
627579991612,1cyclictest491rcuog/211:03:590
6548392150,1sleep20-21swapper/207:33:392
627581991512,1cyclictest0-21swapper/211:38:402
627581991512,1cyclictest0-21swapper/210:35:002
627581991512,1cyclictest0-21swapper/207:25:022
627581991512,1cyclictest0-21swapper/207:18:392
627580991513,1cyclictest750444-21latency_hist08:50:011
627580991513,1cyclictest750444-21latency_hist08:50:011
627580991513,1cyclictest0-21swapper/111:50:021
627580991512,2cyclictest994564-21kthreadcore12:13:431
627580991512,2cyclictest947052-21kthreadcore11:33:441
627580991512,2cyclictest928097-21kthreadcore11:18:431
627580991512,2cyclictest804828-21systemd-run09:35:011
627580991512,2cyclictest701738-21timerandwakeup08:08:481
627580991512,2cyclictest1329-21rs:main1
627580991512,2cyclictest1020112-21kthreadcore12:33:431
627580991511,3cyclictest979298-21kthreadcore11:58:451
627580991511,3cyclictest897889-21kthreadcore10:53:441
627580991511,3cyclictest820708-21kthreadcore09:48:441
627580991511,3cyclictest743941-21timerwakeupswit08:43:541
627580991511,3cyclictest718127-21kthreadcore08:23:431
627580991511,3cyclictest671101-21latency07:43:451
62757999159,2cyclictest666659-21aten_repower_po07:43:380
62757999154,6cyclictest0-21swapper/010:33:450
627579991513,1cyclictest0-21swapper/011:40:010
627579991512,2cyclictest968266-21latency_hist11:50:000
627579991512,2cyclictest846886-21perf10:10:010
627579991512,2cyclictest780762-21systemd-run09:15:010
627579991512,2cyclictest768437-21gpgconf09:05:010
627579991512,2cyclictest1296-21polkitd12:00:010
627579991512,2cyclictest1-21systemd08:15:000
627579991512,2cyclictest1022829-21systemd-run12:35:000
627579991512,2cyclictest0-21swapper/011:00:030
627579991511,3cyclictest800034-21gltestperf09:33:400
62757999150,3cyclictest754717-21kthreadcore08:53:450
62757999150,13cyclictest257-21systemd-journal12:30:010
627581991412,1cyclictest0-21swapper/209:40:002
627581991412,1cyclictest0-21swapper/208:58:392
627581991412,1cyclictest0-21swapper/207:45:022
627581991411,1cyclictest0-21swapper/212:33:462
627581991411,1cyclictest0-21swapper/212:30:012
627581991411,1cyclictest0-21swapper/211:48:412
627581991411,1cyclictest0-21swapper/210:53:442
627581991411,1cyclictest0-21swapper/210:48:432
627581991411,1cyclictest0-21swapper/210:45:012
627581991411,1cyclictest0-21swapper/208:53:412
627581991411,1cyclictest0-21swapper/207:15:022
627580991411,2cyclictest873825-21kthreadcore10:33:441
627580991411,2cyclictest796025-21kthreadcore09:28:441
627580991411,2cyclictest787921-21cut09:23:401
627580991411,2cyclictest722088-21kthreadcore08:28:441
627580991411,2cyclictest661950-21kthreadcore07:38:441
627580991411,2cyclictest654594-21aten_repower_vo07:33:381
627580991411,2cyclictest647569-21timerwakeupswit07:23:491
627580991411,2cyclictest627577-21cyclictest08:32:491
627580991411,2cyclictest1288-1atopacctd09:54:391
627580991411,2cyclictest1288-1atopacctd09:13:541
627580991411,2cyclictest1009106-21kthreadcore12:23:441
627580991410,3cyclictest973644-21pmu-power11:53:461
627580991410,3cyclictest918476-21latency11:08:451
627580991410,3cyclictest685909-21kthreadcore07:58:401
627580991410,3cyclictest1288-1atopacctd09:43:551
627580991410,3cyclictest1288-1atopacctd08:13:441
62758099140,13cyclictest0-21swapper/111:23:361
62757999147,5cyclictest257-21systemd-journal10:15:010
62757999145,5cyclictest853398-21sshd10:17:390
62757999145,4cyclictest835173-21sshd10:00:380
62757999144,5cyclictest720724-21sshd08:28:110
62757999143,6cyclictest774613-21perf09:10:010
62757999141,8cyclictest816975-21cat09:45:010
627579991411,2cyclictest994323-21kthreadcore12:13:430
627579991411,2cyclictest987367-21cut12:08:390
627579991411,2cyclictest940634-21kthreadcore11:28:440
627579991411,2cyclictest890280-21head10:48:400
627579991411,2cyclictest796025-21kthreadcore09:28:450
627579991411,2cyclictest788167-21irqcore09:23:420
627579991411,2cyclictest683790-21unixbench-2d07:53:500
627579991411,2cyclictest634726-21kthreadcore07:15:020
627579991410,3cyclictest947448-21kthreadcore11:33:440
627579991410,3cyclictest655745-21kthreadcore07:33:440
627579991410,3cyclictest1028898-21systemd12:40:010
627579991410,3cyclictest1028898-21systemd12:40:010
2649091140,1phc2sys0-21swapper/308:21:063
62758199137,3cyclictest1024703-21chrt12:38:422
62758199137,3cyclictest1024703-21chrt12:38:422
627581991311,1cyclictest0-21swapper/212:10:012
627581991311,1cyclictest0-21swapper/211:15:012
627581991311,1cyclictest0-21swapper/210:30:012
627581991311,1cyclictest0-21swapper/208:40:002
627581991311,1cyclictest0-21swapper/208:10:022
627581991311,1cyclictest0-21swapper/207:28:482
627581991310,1cyclictest0-21swapper/211:58:472
627581991310,1cyclictest0-21swapper/211:23:442
627581991310,1cyclictest0-21swapper/211:02:552
627581991310,1cyclictest0-21swapper/210:23:392
627581991310,1cyclictest0-21swapper/210:13:472
627581991310,1cyclictest0-21swapper/210:08:382
627581991310,1cyclictest0-21swapper/209:58:462
627581991310,1cyclictest0-21swapper/209:48:442
627581991310,1cyclictest0-21swapper/208:03:432
627581991310,1cyclictest0-21swapper/208:03:432
62758099133,5cyclictest840877-21awk10:05:011
627580991310,2cyclictest960725-21kthreadcore11:43:431
627580991310,2cyclictest938512-21cpuspeed_turbos11:28:391
627580991310,2cyclictest892335-21kthreadcore10:48:441
627580991310,2cyclictest883723-21aten_repower_vo10:43:381
627580991310,2cyclictest879876-21kthreadcore10:38:451
627580991310,2cyclictest862228-21kthreadcore10:23:441
627580991310,2cyclictest855985-21kthreadcore10:18:431
627580991310,2cyclictest845152-21kthreadcore10:08:451
627580991310,2cyclictest806441-21irqrtprio09:38:431
627580991310,2cyclictest782914-21kthreadcore09:18:431
627580991310,2cyclictest755176-21kthreadcore08:53:451
627580991310,2cyclictest680871-21kthreadcore07:53:441
627580991310,2cyclictest675331-21kthreadcore07:48:441
627580991310,2cyclictest653349-21mailstats07:28:481
627580991310,2cyclictest635704-21aten_repower_po07:15:021
627580991310,2cyclictest281-21systemd-udevd10:13:461
627580991310,2cyclictest1023485-21head12:38:371
627580991310,2cyclictest1023485-21head12:38:371
627580991310,2cyclictest1001604-21kthreadcore12:18:431
62757999135,7cyclictest695138-21tr08:03:440
62757999135,7cyclictest695138-21tr08:03:440
62757999135,5cyclictest1-21systemd08:20:020
62757999135,5cyclictest0-21swapper/008:31:030
62757999134,5cyclictest823343-21/usr/sbin/munin09:53:420
62757999133,6cyclictest0-21swapper/008:21:390
62757999131,8cyclictest758296-21kthreadcore08:58:430
62757999131,7cyclictest931506-21users11:18:500
62757999131,6cyclictest672581-21apt-get07:48:370
627579991310,2cyclictest968947-21aten_repower_en11:53:370
627579991310,2cyclictest899503-21kthreadcore10:53:450
627579991310,2cyclictest884881-21kthreadcore10:43:460
627579991310,2cyclictest880416-21kthreadcore10:38:450
627579991310,2cyclictest865653-21aten_repower_po10:28:390
627579991310,2cyclictest817692-21cpuspeed_turbos09:48:390
627579991310,2cyclictest636499-21aten_repower_po07:18:340
627579991310,2cyclictest1006122-21irqcore12:23:420
2649091131,3phc2sys0-21swapper/310:59:473
2649091130,1phc2sys0-21swapper/308:45:263
2649091130,1phc2sys0-21swapper/308:45:263
62758199129,1cyclictest0-21swapper/212:13:392
62758199129,1cyclictest0-21swapper/211:53:432
62758199129,1cyclictest0-21swapper/210:03:512
62758199129,1cyclictest0-21swapper/209:43:592
62758199129,1cyclictest0-21swapper/209:33:442
62758199129,1cyclictest0-21swapper/209:11:082
62758199129,1cyclictest0-21swapper/209:08:422
62758199129,1cyclictest0-21swapper/207:36:552
62758199128,2cyclictest684809-21taskset07:58:352
627581991211,0cyclictest0-21swapper/208:45:002
627581991210,1cyclictest0-21swapper/212:25:022
627581991210,1cyclictest0-21swapper/211:43:482
627581991210,1cyclictest0-21swapper/208:48:472
627581991210,1cyclictest0-21swapper/208:48:472
627581991210,1cyclictest0-21swapper/208:20:022
62758099129,2cyclictest950963-21gltestperf11:38:411
62758099129,2cyclictest756992-21aten_repower_po08:58:381
62758099129,2cyclictest712476-21kthreadcore08:18:451
62758099129,2cyclictest257-21systemd-journal08:37:391
62758099127,3cyclictest627632-21grep07:10:011
62757999129,2cyclictest807906-21kthreadcore09:38:450
62757999129,2cyclictest739976-21irqrtprio08:43:450
62757999125,2cyclictest627408-21latency_hist07:10:010
62757999123,4cyclictest913911-21/usr/sbin/munin11:08:410
62757999123,4cyclictest648456-21aten_repower_cu07:28:380
62757999121,6cyclictest665927-21latency_hist07:40:020
62757999120,7cyclictest696641-21/usr/sbin/munin08:08:440
2649091121,3phc2sys0-21swapper/307:08:333
2649091120,1phc2sys0-21swapper/311:19:413
2649091120,1phc2sys0-21swapper/310:23:443
62758199119,1cyclictest0-21swapper/212:15:272
62758199119,1cyclictest0-21swapper/212:01:072
62758199119,1cyclictest0-21swapper/211:25:172
62758199119,1cyclictest0-21swapper/211:16:042
62758199119,1cyclictest0-21swapper/211:06:512
62758199119,1cyclictest0-21swapper/210:16:402
62758199119,1cyclictest0-21swapper/209:23:452
62758199119,1cyclictest0-21swapper/208:30:102
62758199119,1cyclictest0-21swapper/208:20:572
62758199119,1cyclictest0-21swapper/207:45:072
62758199119,1cyclictest0-21swapper/207:10:012
62758199118,1cyclictest0-21swapper/209:26:292
62758099113,2cyclictest491rcuog/211:03:351
2649091111,2phc2sys0-21swapper/307:53:373
2649091110,2phc2sys0-21swapper/311:33:373
2649091110,1phc2sys0-21swapper/310:41:193
2649091110,1phc2sys0-21swapper/310:05:333
62758199108,1cyclictest0-21swapper/207:51:162
2649091102,2phc2sys0-21swapper/308:28:433
2649091101,2phc2sys0-21swapper/312:33:363
2649091101,2phc2sys0-21swapper/311:53:403
2649091101,2phc2sys0-21swapper/309:48:503
2649091101,1phc2sys0-21swapper/308:58:373
2649091100,2phc2sys0-21swapper/311:08:363
2649091100,1phc2sys0-21swapper/312:07:353
2649091100,1phc2sys0-21swapper/310:01:403
2649091100,1phc2sys0-21swapper/309:34:443
2649091100,1phc2sys0-21swapper/309:02:223
2649091100,1phc2sys0-21swapper/307:15:223
264909192,2phc2sys0-21swapper/311:58:373
264909191,2phc2sys0-21swapper/311:03:353
264909191,1phc2sys0-21swapper/308:06:513
264909190,3phc2sys0-21swapper/310:40:023
264909190,2phc2sys0-21swapper/312:40:023
264909190,2phc2sys0-21swapper/312:40:023
264909190,2phc2sys0-21swapper/312:13:453
264909190,2phc2sys0-21swapper/311:48:393
264909190,2phc2sys0-21swapper/311:43:353
264909190,2phc2sys0-21swapper/311:40:023
264909190,2phc2sys0-21swapper/310:55:023
264909190,2phc2sys0-21swapper/309:58:443
264909190,2phc2sys0-21swapper/309:19:563
264909190,2phc2sys0-21swapper/308:54:563
264909190,2phc2sys0-21swapper/308:38:373
264909190,2phc2sys0-21swapper/307:58:463
264909190,2phc2sys0-21swapper/307:38:423
264909190,1phc2sys0-21swapper/312:16:253
264909190,1phc2sys0-21swapper/311:28:403
264909190,1phc2sys0-21swapper/309:37:123
264909190,1phc2sys0-21swapper/309:22:253
264909190,1phc2sys0-21swapper/308:43:383
264909190,1phc2sys0-21swapper/308:13:363
264909181,2phc2sys0-21swapper/310:26:453
264909181,2phc2sys0-21swapper/309:43:093
264909181,2phc2sys0-21swapper/309:25:103
264909181,2phc2sys0-21swapper/309:13:403
264909181,2phc2sys0-21swapper/307:33:253
264909181,1phc2sys0-21swapper/310:13:473
264909180,3phc2sys0-21swapper/310:48:363
264909180,2phc2sys0-21swapper/312:28:443
264909180,2phc2sys0-21swapper/312:22:263
264909180,2phc2sys0-21swapper/311:23:393
264909180,2phc2sys0-21swapper/310:33:383
264909180,2phc2sys0-21swapper/310:17:223
264909180,2phc2sys0-21swapper/309:09:563
264909180,2phc2sys0-21swapper/308:18:373
264909180,2phc2sys0-21swapper/307:48:363
264909180,2phc2sys0-21swapper/307:43:473
264909180,2phc2sys0-21swapper/307:28:403
264909180,2phc2sys0-21swapper/307:13:343
264909180,1phc2sys0-21swapper/312:01:503
264909180,1phc2sys0-21swapper/308:30:193
264909180,1phc2sys0-21swapper/308:03:473
264909180,1phc2sys0-21swapper/308:03:473
264909171,2phc2sys0-21swapper/307:20:393
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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