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2026-03-11 - 18:34
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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 rackeslot2.osadl.org (updated Wed Mar 11, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
314928921030,1sleep00-21swapper/010:46:450
314928921030,1sleep00-21swapper/010:46:450
32853152330,1sleep1341rcuc/112:02:291
30310982310,2sleep30-21swapper/309:41:393
29172512310,1sleep20-21swapper/208:21:392
2829395993019,8cyclictest0-21swapper/212:30:012
32584582290,1sleep10-21swapper/111:47:181
2829393992923,5cyclictest3118582-21apt-key10:30:000
2829393992817,7cyclictest3012255-21latency_hist09:30:010
2829393992613,9cyclictest3245438-21kthreadcore11:41:450
2829393992613,9cyclictest3096159-21kthreadcore10:16:440
2829393992415,8cyclictest3076307-21irqrtprio10:06:430
2829393992410,9cyclictest0-21swapper/010:35:020
2829394992320,2cyclictest1290-21dbus-daemon11:00:011
282939399238,9cyclictest0-21swapper/011:01:360
282939399238,6cyclictest0-21swapper/012:11:410
282939399234,6cyclictest0-21swapper/010:14:110
2829393992311,8cyclictest3271643-21irqcore11:56:420
2829393992311,8cyclictest2829391-21cyclictest11:28:500
2829393992310,8cyclictest0-21swapper/009:31:380
282939399228,9cyclictest0-21swapper/009:51:380
282939399228,5cyclictest0-21swapper/009:50:010
2829393992216,5cyclictest2971647-21cstates09:06:420
2829393992210,8cyclictest0-21swapper/012:40:010
282939399218,8cyclictest0-21swapper/010:21:490
282939399218,5cyclictest0-21swapper/012:31:340
2829393992115,5cyclictest2835626-21aten_repower_en07:15:010
2829393992115,5cyclictest1327-21in:imuxsock08:40:010
2829393992111,2cyclictest3215851-21runrttasks11:24:420
2829394992017,2cyclictest3348724-21latency_hist12:40:001
2829394992014,2cyclictest134050irq/121-eno109:35:011
282939399207,5cyclictest0-21swapper/011:06:450
282939399206,6cyclictest3203583-21kthreadcore11:16:480
282939399202,9cyclictest0-21swapper/009:20:230
2829393992015,4cyclictest2980846-21kthreadcore09:11:450
2829393992015,4cyclictest2898329-21apt-config08:05:010
2829393992015,4cyclictest1286-21avahi-daemon10:36:500
2829393992012,7cyclictest3317252-21kthreadcore12:21:440
2829393992011,8cyclictest3289397-21irqrtprio12:06:420
282939399200,9cyclictest3029742-21latency_hist09:40:010
2649091201,8phc2sys0-21swapper/308:06:383
2649091200,2phc2sys0-21swapper/312:38:553
2649091200,2phc2sys0-21swapper/311:15:273
2829394991916,2cyclictest3062883-21unixbench_multi09:56:501
2829394991916,2cyclictest2898160-21apt-key08:05:001
2829394991916,2cyclictest1290-21dbus-daemon10:10:001
2829394991916,2cyclictest1288-1atopacctd11:26:451
2829394991915,2cyclictest3304609-21latency_hist12:15:011
2829394991911,3cyclictest0-21swapper/110:35:011
282939399198,2cyclictest0-21swapper/012:26:390
282939399197,4cyclictest3236363-21kthreadcore11:36:440
282939399197,4cyclictest0-21swapper/011:51:470
282939399197,4cyclictest0-21swapper/011:10:340
282939399197,2cyclictest0-21swapper/010:59:570
282939399197,2cyclictest0-21swapper/010:51:360
282939399196,5cyclictest0-21swapper/011:34:140
282939399196,5cyclictest0-21swapper/009:16:470
282939399191,9cyclictest2945731-21expr08:41:460
282939399191,9cyclictest2869515-21irqrtprio07:41:450
2829393991913,5cyclictest3057832-21tr09:56:390
2829393991913,5cyclictest2905424-21fschecks_time08:11:410
2829393991913,5cyclictest2885677-21unixbench_singl07:51:520
2829393991913,5cyclictest2829391-21cyclictest10:41:480
2829393991912,6cyclictest2829391-21cyclictest08:56:440
2829393991912,3cyclictest3038800-21kworker/u16:3+nfsiod10:00:420
2829395991816,1cyclictest0-21swapper/212:25:012
2829395991816,1cyclictest0-21swapper/211:50:022
2829395991814,2cyclictest0-21swapper/209:44:302
2829394991815,2cyclictest3207285-21latency_hist11:20:011
2829394991815,2cyclictest1288-1atopacctd09:15:011
2829394991814,3cyclictest2836742-21sort07:15:021
282939399188,2cyclictest0-21swapper/011:46:240
282939399181,8cyclictest2947132-21apt-get08:46:370
282939399181,8cyclictest2916908-21/usr/sbin/munin08:21:370
2829393991812,2cyclictest2892180-21cut08:00:010
2829393991811,6cyclictest2856877-21head07:31:410
2829393991811,2cyclictest2929633-21fschecks_time08:31:410
2829393991811,2cyclictest1288-1atopacctd08:20:010
2829393991811,2cyclictest0-21swapper/012:16:410
2829393991810,7cyclictest2968598-21kthreadcore09:01:450
2829393991810,7cyclictest2875411-21irqcore07:46:410
2829393991810,3cyclictest2923953-21irqcore08:26:420
2829393991810,3cyclictest2839344-21kthreadcore07:16:440
2649091180,2phc2sys0-21swapper/310:08:553
2829395991714,1cyclictest0-21swapper/210:11:432
282939499179,4cyclictest3048749-21aten_repower_en09:51:381
2829394991715,1cyclictest3313368-21ls12:20:001
2829394991715,1cyclictest3269318-21cron11:55:001
2829394991714,2cyclictest3198143-21apt-config11:15:011
2829394991714,2cyclictest2964758-21cron09:00:001
2829394991712,1cyclictest1109-21hwrng12:20:341
2829393991712,4cyclictest2844833-21gltestperf07:21:420
2829393991710,2cyclictest3279933-21cstates12:01:380
2829393991710,2cyclictest2957340-21kthreadcore08:51:440
2829393991710,2cyclictest2901940-21kthreadcore08:06:450
2829393991710,2cyclictest2850686-21sh07:26:420
282939399170,7cyclictest3035295-21cut09:41:470
2649091170,3phc2sys0-21swapper/311:04:083
2649091170,2phc2sys0-21swapper/310:46:483
2649091170,2phc2sys0-21swapper/310:46:483
2649091170,2phc2sys0-21swapper/309:58:033
282939599167,4cyclictest0-21swapper/212:20:012
2829395991613,1cyclictest0-21swapper/210:40:012
2829395991613,1cyclictest0-21swapper/209:40:012
2829395991613,1cyclictest0-21swapper/208:40:002
2829395991613,1cyclictest0-21swapper/208:30:012
2829394991613,2cyclictest3288922-21fschecks_time12:06:401
2829394991613,2cyclictest3156177-21gltestperf10:51:401
2829394991613,2cyclictest3145520-21cut10:45:011
2829394991613,2cyclictest3103069-21irqrtprio10:21:421
2829394991613,2cyclictest3069117-21kthreadcore10:01:451
2829394991613,2cyclictest3026659-21kthreadcore09:36:441
2829394991613,2cyclictest2899454-21gltestperf08:06:421
2829394991613,2cyclictest1326-21systemd-logind09:30:001
2829394991613,2cyclictest1313-21gmain07:45:011
2829394991613,2cyclictest0-21swapper/112:00:011
2829394991612,3cyclictest3130633-21tr10:36:451
2829394991612,3cyclictest2880090-21kworker/u16:1+nfsiod09:43:411
282939399161,6cyclictest2829239-21latency_hist07:10:010
2829393991610,2cyclictest2862323-21tail07:36:390
2649091162,4phc2sys0-21swapper/309:21:373
2649091162,2phc2sys0-21swapper/307:36:053
2649091161,4phc2sys0-21swapper/311:46:373
2649091160,2phc2sys0-21swapper/312:27:363
2649091160,2phc2sys0-21swapper/310:55:303
2649091160,2phc2sys0-21swapper/310:20:483
2649091160,2phc2sys0-21swapper/309:25:363
2829395991513,1cyclictest0-21swapper/207:15:012
2829395991512,1cyclictest0-21swapper/212:31:402
2829395991512,1cyclictest0-21swapper/212:11:452
2829395991512,1cyclictest0-21swapper/212:05:012
2829395991512,1cyclictest0-21swapper/211:26:382
2829395991512,1cyclictest0-21swapper/211:00:002
2829395991512,1cyclictest0-21swapper/209:31:512
2829395991512,1cyclictest0-21swapper/208:51:422
2829395991512,1cyclictest0-21swapper/208:11:462
2829395991512,1cyclictest0-21swapper/207:36:442
282939499159,5cyclictest0-21swapper/109:05:011
282939499158,2cyclictest0-21swapper/111:41:391
2829394991512,2cyclictest3239609-21kthreadcore11:36:451
2829394991512,2cyclictest2948013-21tr08:46:431
2829394991512,2cyclictest29021-21rtkit-daemon08:44:111
2829394991512,2cyclictest2847706-21kthreadcore07:21:461
2829394991512,2cyclictest2837621-21gltestperf07:15:021
2829394991511,3cyclictest2938093-21kthreadcore08:36:461
2829394991511,3cyclictest1288-1atopacctd08:51:441
2649091150,3phc2sys0-21swapper/309:51:553
2649091150,2phc2sys0-21swapper/311:31:423
2649091150,2phc2sys0-21swapper/310:38:013
282939599144,6cyclictest0-21swapper/209:10:012
2829395991412,1cyclictest0-21swapper/212:40:022
2829395991412,1cyclictest0-21swapper/211:15:022
2829395991412,1cyclictest0-21swapper/211:07:402
2829395991412,1cyclictest0-21swapper/209:50:012
2829395991411,1cyclictest0-21swapper/210:51:442
2829395991411,1cyclictest0-21swapper/210:26:382
2829395991411,1cyclictest0-21swapper/210:21:502
2829395991411,1cyclictest0-21swapper/210:10:002
2829395991411,1cyclictest0-21swapper/209:26:492
2829395991411,1cyclictest0-21swapper/209:16:092
2829395991411,1cyclictest0-21swapper/207:16:512
2829395991410,2cyclictest0-21swapper/211:21:462
2829395991410,2cyclictest0-21swapper/210:31:442
2829395991410,2cyclictest0-21swapper/208:10:012
2829395991410,2cyclictest0-21swapper/207:45:452
2829395991410,2cyclictest0-21swapper/207:30:312
282939599140,7cyclictest0-21swapper/209:15:022
282939499149,4cyclictest2911441-21sort08:16:411
282939499146,3cyclictest0-21swapper/110:26:371
2829394991411,2cyclictest3335296-21kthreadcore12:31:421
2829394991411,2cyclictest3326377-21kthreadcore12:26:441
2829394991411,2cyclictest3147563-21irqcore10:46:441
2829394991411,2cyclictest3147563-21irqcore10:46:441
2829394991411,2cyclictest3094332-21kernelversion10:16:431
2829394991411,2cyclictest2991056-21kthreadcore09:16:471
2829394991411,2cyclictest2929255-21cpuspeed_turbos08:31:391
2829394991411,2cyclictest2892005-21cron08:00:001
2829394991411,2cyclictest2875178-21if_enp1s0.807:46:401
2829394991411,2cyclictest2829391-21cyclictest07:51:451
2829394991410,3cyclictest3211159-21kthreadcore11:21:451
2829394991410,3cyclictest3039976-21cpu09:46:401
2829394991410,3cyclictest0-21swapper/109:25:021
282939499140,12cyclictest2928564-21grep08:30:011
2649091144,2phc2sys0-21swapper/309:39:163
2649091140,6phc2sys0-21swapper/310:31:083
2649091140,4phc2sys0-21swapper/312:22:383
2649091140,4phc2sys0-21swapper/312:12:173
2649091140,2phc2sys0-21swapper/310:02:293
2649091140,1phc2sys0-21swapper/309:18:043
282939599139,2cyclictest0-21swapper/207:41:452
282939599131,6cyclictest0-21swapper/208:00:012
2829395991311,1cyclictest0-21swapper/211:16:532
2829395991311,1cyclictest0-21swapper/209:51:502
2829395991311,1cyclictest0-21swapper/208:16:452
2829395991310,1cyclictest0-21swapper/212:06:462
2829395991310,1cyclictest0-21swapper/211:56:362
2829395991310,1cyclictest0-21swapper/211:36:422
2829395991310,1cyclictest0-21swapper/211:33:562
2829395991310,1cyclictest0-21swapper/211:04:412
2829395991310,1cyclictest0-21swapper/210:46:382
2829395991310,1cyclictest0-21swapper/210:46:382
2829395991310,1cyclictest0-21swapper/210:45:002
2829395991310,1cyclictest0-21swapper/209:56:432
2829395991310,1cyclictest0-21swapper/209:01:452
2829395991310,1cyclictest0-21swapper/208:46:452
2829395991310,1cyclictest0-21swapper/208:01:452
2829395991310,1cyclictest0-21swapper/207:26:432
282939499139,3cyclictest2977069-21kworker/u16:0+nfsiod10:10:441
282939499139,3cyclictest2919675-21kthreadcore08:21:461
282939499138,1cyclictest134050irq/121-eno111:06:411
2829394991311,1cyclictest1326-21systemd-logind07:30:011
2829394991310,2cyclictest3228964-21kthreadcore11:31:431
2829394991310,2cyclictest3175226-21kthreadcore11:01:431
2829394991310,2cyclictest2866997-21phc2sys-jitter07:36:481
2829394991310,2cyclictest2829391-21cyclictest07:31:451
2649091132,2phc2sys0-21swapper/307:21:393
2649091130,3phc2sys0-21swapper/311:36:113
2649091130,2phc2sys0-21swapper/312:33:013
2649091130,2phc2sys0-21swapper/312:15:073
2649091130,1phc2sys0-21swapper/312:05:203
2649091130,1phc2sys0-21swapper/311:59:563
2649091130,1phc2sys0-21swapper/311:53:503
282939599129,2cyclictest0-21swapper/208:31:382
282939599129,1cyclictest0-21swapper/210:16:382
282939599128,2cyclictest0-21swapper/210:01:442
2829395991210,1cyclictest0-21swapper/211:53:112
2829395991210,1cyclictest0-21swapper/211:41:392
2829395991210,1cyclictest0-21swapper/209:21:412
2829395991210,1cyclictest0-21swapper/208:56:432
282939499129,2cyclictest2906139-21kthreadcore08:11:441
282939499122,3cyclictest2971321-21head09:06:401
2829394991210,1cyclictest2829407-21latency_hist07:10:011
2649091123,3phc2sys0-21swapper/310:18:343
2649091121,2phc2sys0-21swapper/310:12:313
2649091120,4phc2sys0-21swapper/310:42:553
2649091120,2phc2sys0-21swapper/309:13:353
2649091120,2phc2sys0-21swapper/308:10:483
2649091120,2phc2sys0-21swapper/307:27:123
2649091120,1phc2sys0-21swapper/307:07:253
282939599119,1cyclictest0-21swapper/208:41:482
282939599119,1cyclictest0-21swapper/207:21:402
282939599118,1cyclictest0-21swapper/207:50:142
28269542110,5sleep20-21swapper/207:06:462
2649091112,2phc2sys0-21swapper/310:54:033
2649091111,7phc2sys2964682-21chrt08:59:073
2649091111,3phc2sys0-21swapper/307:16:383
2649091111,2phc2sys0-21swapper/311:25:173
2649091111,2phc2sys0-21swapper/307:31:373
2649091110,2phc2sys0-21swapper/308:45:543
2649091110,1phc2sys0-21swapper/308:33:483
2649091110,1phc2sys0-21swapper/308:23:103
2649091110,1phc2sys0-21swapper/307:10:373
2649091101,2phc2sys0-21swapper/308:36:403
2649091101,2phc2sys0-21swapper/307:56:453
2649091100,2phc2sys0-21swapper/312:02:283
2649091100,2phc2sys0-21swapper/311:41:203
2649091100,2phc2sys0-21swapper/311:10:583
2649091100,2phc2sys0-21swapper/311:06:423
2649091100,2phc2sys0-21swapper/310:25:463
2649091100,2phc2sys0-21swapper/309:46:493
2649091100,2phc2sys0-21swapper/309:31:393
2649091100,2phc2sys0-21swapper/309:01:003
2649091100,2phc2sys0-21swapper/307:55:013
264909191,2phc2sys0-21swapper/308:41:413
264909191,2phc2sys0-21swapper/308:01:503
264909190,2phc2sys0-21swapper/311:20:563
264909190,2phc2sys0-21swapper/308:51:393
264909190,2phc2sys0-21swapper/308:16:373
264909190,2phc2sys0-21swapper/307:46:433
264909190,2phc2sys0-21swapper/307:40:303
264909180,2phc2sys0-21swapper/308:26:393
264909180,1phc2sys0-21swapper/309:05:503
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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