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2026-09-04 - 12:00
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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 Fri Sep 04, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
322750521090,2sleep30-21swapper/320:39:413
331354921050,2sleep30-21swapper/321:34:443
33535402420,2sleep20-21swapper/221:54:522
34864152310,1sleep10-21swapper/123:09:591
31756832300,1sleep00-21swapper/019:59:460
36201302250,2sleep1191rcu_preempt00:26:441
310618899229,7cyclictest0-21swapper/000:29:250
310618899222,14cyclictest3233692-21apt-get20:44:230
3106188992214,5cyclictest3433607-21latency_hist22:40:010
3106188992212,6cyclictest3287080-21kthreadcore21:19:460
310618899214,16cyclictest0-21swapper/021:49:500
3106188992112,5cyclictest3631298-21irqcore00:34:450
3106188992111,6cyclictest3360728-21kthreadcore21:59:460
3106190992014,2cyclictest82050irq/121-eno122:54:421
3106190992014,2cyclictest82050irq/121-eno121:25:011
3106188992012,4cyclictest3310293-21kworker/u16:0-events_unbound21:53:490
3106188992011,4cyclictest3494985-21timerwakeupswit23:14:530
2447398200,4rtkit-daemon3274348-21diskmemload22:12:111
2447398200,3rtkit-daemon798-21mta-sts-daemon23:28:490
2447398200,3rtkit-daemon1415-21ntpd23:25:091
22132912011,2phc2sys0-21swapper/320:04:433
3106190991916,2cyclictest351ktimers/122:02:251
3106190991916,2cyclictest24610-21gmain00:09:011
3106190991912,3cyclictest3405999-21kthreadcore22:24:481
3106190991912,3cyclictest3356734-21cpuspeed_turbos21:59:391
3106190991911,3cyclictest3553523-21kthreadcore23:49:481
310618899197,2cyclictest0-21swapper/000:24:470
3106188991910,8cyclictest3405784-21kthreadcore22:24:470
2213291193,1phc2sys0-21swapper/323:01:133
2213291190,5phc2sys0-21swapper/320:24:243
35809822180,2sleep00-21swapper/000:04:460
3106194991814,2cyclictest0-21swapper/221:24:482
3106190991815,2cyclictest24648-21gmain21:25:071
3106190991815,2cyclictest1188-21runrttasks22:47:171
3106190991812,4cyclictest3206147-21cut20:24:271
310618899187,6cyclictest0-21swapper/023:48:440
3106188991815,2cyclictest24610-21gmain19:50:370
310618899181,12cyclictest0-21swapper/023:16:530
310618899181,12cyclictest0-21swapper/023:16:530
2213291181,2phc2sys0-21swapper/323:17:043
2213291181,2phc2sys0-21swapper/323:17:043
2213291180,3phc2sys0-21swapper/300:12:193
310619499179,4cyclictest0-21swapper/222:23:592
310619499175,5cyclictest0-21swapper/220:49:232
310619499171,9cyclictest0-21swapper/221:09:242
3106194991714,1cyclictest0-21swapper/221:00:092
3106194991714,1cyclictest0-21swapper/200:31:072
310619099177,2cyclictest191rcu_preempt22:19:231
310619099174,8cyclictest3539479-21awk23:40:011
3106190991715,2cyclictest351ktimers/123:59:591
3106190991711,4cyclictest3412333-21tr22:29:481
310618899178,5cyclictest3536064-21kthreadcore23:39:460
310618899178,5cyclictest3324034-21kthreadcore21:39:480
310618899177,5cyclictest3457135-21kthreadcore22:54:450
3106188991714,2cyclictest862-21gmain22:40:440
3106188991714,2cyclictest3150131-21munin-run19:40:010
3106188991713,3cyclictest3571517-21kthreadcore23:59:470
3106188991711,5cyclictest3548160-21unixbench_multi23:44:520
3106188991711,1cyclictest3600801-21grep00:14:510
3106188991710,2cyclictest3381892-21runrttasks22:12:260
310618899170,5cyclictest3410652-21sed22:29:470
310618899170,15cyclictest0-21swapper/019:42:510
2213291171,6phc2sys0-21swapper/322:19:233
2213291171,4phc2sys0-21swapper/300:19:223
2213291171,4phc2sys0-21swapper/300:04:233
2213291171,3phc2sys0-21swapper/320:09:483
2213291170,2phc2sys0-21swapper/323:58:043
2213291170,2phc2sys0-21swapper/322:26:523
2213291170,2phc2sys0-21swapper/321:20:353
2213291170,2phc2sys0-21swapper/300:38:533
3106194991614,1cyclictest0-21swapper/223:35:042
3106194991613,1cyclictest0-21swapper/223:03:472
3106194991613,1cyclictest0-21swapper/221:29:552
310619099169,3cyclictest3320923-21/usr/sbin/munin21:39:471
3106190991615,1cyclictest351ktimers/120:04:351
3106190991613,2cyclictest778-21dbus-daemon20:15:011
3106190991612,3cyclictest70-21kcompactd019:15:011
3106190991612,3cyclictest3604723-21irqcore00:19:431
3106190991612,3cyclictest3288791-21kthreadcore21:19:481
3106190991612,3cyclictest3126450-21kthreadcore19:24:461
310619099161,10cyclictest0-21swapper/123:19:421
310619099161,10cyclictest0-21swapper/123:19:421
310618899169,2cyclictest3645596-21latency_hist00:40:010
310618899166,3cyclictest82050irq/121-eno121:21:530
310618899166,2cyclictest0-21swapper/023:24:440
310618899165,7cyclictest0-21swapper/022:04:540
310618899164,7cyclictest0-21swapper/019:34:280
310618899164,7cyclictest0-21swapper/019:34:280
310618899163,2cyclictest3374004-21apt-get22:09:260
310618899162,9cyclictest0-21swapper/022:47:400
3106188991612,3cyclictest3562607-21kthreadcore23:54:460
3106188991612,3cyclictest3468242-21ptp4l-jitter22:59:510
3106188991612,3cyclictest3418316-21aten_repower_en22:34:270
3106188991612,3cyclictest3335182-21kthreadcore21:44:460
3106188991612,3cyclictest3256558-21kthreadcore20:59:460
3106188991611,4cyclictest3610348-21sort00:20:020
3106188991611,1cyclictest3283405-21921:15:010
310618899161,10cyclictest0-21swapper/000:07:290
2213291161,2phc2sys0-21swapper/323:44:503
2213291160,2phc2sys0-21swapper/321:39:183
2213291160,2phc2sys0-21swapper/300:25:503
2213291160,1phc2sys0-21swapper/322:10:533
3106194991512,1cyclictest0-21swapper/223:59:442
3106194991512,1cyclictest0-21swapper/223:55:012
3106194991512,1cyclictest0-21swapper/223:47:112
3106194991512,1cyclictest0-21swapper/221:59:472
3106194991512,1cyclictest0-21swapper/221:11:592
3106194991512,1cyclictest0-21swapper/220:14:422
3106194991512,1cyclictest0-21swapper/220:08:592
3106194991512,1cyclictest0-21swapper/219:19:202
3106194991511,2cyclictest0-21swapper/200:24:462
310619099159,5cyclictest3310293-21kworker/u16:0-events_unbound21:52:191
310619099159,4cyclictest3610690-21ssh00:20:251
310619099158,3cyclictest3106186-21cyclictest21:11:371
310619099152,8cyclictest3226105-21perf20:35:011
3106190991512,2cyclictest932-1atopacctd21:43:591
3106190991512,2cyclictest778-21dbus-daemon20:30:011
3106190991512,2cyclictest3561043-21kthreadcore23:54:451
3106190991512,2cyclictest3507608-21irqcore23:24:441
3106190991512,2cyclictest3106186-21cyclictest21:09:411
3106190991511,3cyclictest3644954-21pmu-power00:39:501
3106190991511,3cyclictest3493967-21kthreadcore23:14:481
3106190991511,3cyclictest3466649-21kthreadcore22:59:471
3106190991511,3cyclictest3341368-21kthreadcore21:49:481
3106190991511,3cyclictest3310293-21kworker/u16:0+nfsiod22:05:211
3106190991511,3cyclictest3259961-21phc2sys-jitter20:59:501
3106190991511,3cyclictest3251368-21kthreadcore20:54:461
3106190991511,3cyclictest3234414-21gltestperf20:44:421
3106190991511,3cyclictest3200268-21irqcore20:19:451
3106190991511,3cyclictest3152131-21kthreadcore19:44:461
3106190991511,3cyclictest3145327-21kthreadcore19:39:451
3106190991511,3cyclictest3133135-21kthreadcore19:29:471
3106190991511,3cyclictest3133135-21kthreadcore19:29:471
3106190991511,3cyclictest24619-21llvmpipe-100:11:591
310618899155,4cyclictest3122902-21sshd-session19:20:440
310618899154,3cyclictest191rcu_preempt20:39:220
3106188991512,2cyclictest975-21in:imuxsock19:18:440
3106188991512,2cyclictest862-21gmain23:31:440
3106188991512,2cyclictest3161831-21kthreadcore19:49:480
3106188991512,2cyclictest3106186-21cyclictest21:09:460
3106188991512,2cyclictest24472-21rtkit-daemon20:23:540
3106188991511,3cyclictest3315315-21kthreadcore21:34:450
3106188991511,3cyclictest3305353-21kthreadcore21:29:500
3106188991511,3cyclictest3263156-21kthreadcore21:04:440
3106188991511,3cyclictest3240677-21aten_repower_fr20:49:290
3106188991511,3cyclictest3222903-21kthreadcore20:34:480
3106188991511,3cyclictest3216533-21kthreadcore20:29:440
3106188991511,3cyclictest3204484-21kthreadcore20:19:480
3106188991511,3cyclictest3186454-21irqcore20:09:430
3106188991511,3cyclictest3179587-21irqcore20:04:450
310618899150,3cyclictest3478072-21ssh23:05:170
310619499149,3cyclictest0-21swapper/223:29:482
310619499148,4cyclictest35363272sleep223:39:472
3106194991411,1cyclictest0-21swapper/222:52:592
3106194991411,1cyclictest0-21swapper/222:46:492
3106194991411,1cyclictest0-21swapper/222:35:022
3106194991411,1cyclictest0-21swapper/222:14:502
3106194991411,1cyclictest0-21swapper/222:09:492
3106194991411,1cyclictest0-21swapper/221:44:412
3106194991411,1cyclictest0-21swapper/221:36:062
3106194991411,1cyclictest0-21swapper/220:34:452
3106194991411,1cyclictest0-21swapper/220:26:202
3106194991411,1cyclictest0-21swapper/219:49:472
3106194991411,1cyclictest0-21swapper/200:19:452
3106194991411,1cyclictest0-21swapper/200:14:522
3106194991411,1cyclictest0-21swapper/200:10:012
3106194991410,2cyclictest0-21swapper/221:34:502
3106194991410,2cyclictest0-21swapper/220:19:412
310619499140,8cyclictest0-21swapper/222:29:262
310619099149,4cyclictest24616-21JS14:54:061
3106190991411,2cyclictest975-21in:imuxsock23:45:031
3106190991411,2cyclictest3441841-21mailstats22:44:511
3106190991411,2cyclictest3419516-21grep22:34:441
3106190991411,2cyclictest3172875-21kthreadcore19:59:441
3106190991411,2cyclictest3116363-21aten_repower_po19:19:341
3106190991411,2cyclictest3106186-21cyclictest23:34:511
3106190991411,2cyclictest24472-21rtkit-daemon20:39:141
3106190991411,2cyclictest1415-21ntpd19:49:431
3106190991410,3cyclictest3633421-21kthreadcore00:34:471
3106190991410,3cyclictest3582282-21kthreadcore00:04:471
3106190991410,3cyclictest3336440-21kworker/u16:3+nfsiod22:35:281
3106190991410,3cyclictest3264738-21kthreadcore21:04:451
3106190991410,3cyclictest3190134-21kthreadcore20:09:461
3106190991410,3cyclictest3169590-21kthreadcore19:54:481
310618899145,4cyclictest3109157-21cut19:14:440
310618899141,4cyclictest491rcuog/222:17:100
3106188991411,2cyclictest3250511-21sort20:54:460
3106188991411,2cyclictest3106333-21latency_hist19:10:030
3106188991411,2cyclictest3106186-21cyclictest23:04:500
3106188991410,3cyclictest3195735-21kthreadcore20:14:460
3106188991410,3cyclictest3134626-21kthreadcore19:29:480
3106188991410,3cyclictest3134626-21kthreadcore19:29:480
2213291141,6phc2sys0-21swapper/319:09:223
2213291140,3phc2sys0-21swapper/319:49:243
2213291140,2phc2sys0-21swapper/322:20:553
2213291140,2phc2sys0-21swapper/321:49:453
2213291140,2phc2sys0-21swapper/321:10:153
2213291140,2phc2sys0-21swapper/319:29:563
2213291140,2phc2sys0-21swapper/319:29:563
36160592130,3sleep30-21swapper/300:24:453
310619499139,2cyclictest0-21swapper/223:21:392
310619499131,7cyclictest0-21swapper/219:59:232
3106194991311,1cyclictest0-21swapper/222:36:292
3106194991311,1cyclictest0-21swapper/221:45:042
3106194991311,1cyclictest0-21swapper/200:04:472
3106194991310,1cyclictest0-21swapper/223:44:442
3106194991310,1cyclictest0-21swapper/223:16:092
3106194991310,1cyclictest0-21swapper/223:16:092
3106194991310,1cyclictest0-21swapper/223:14:192
3106194991310,1cyclictest0-21swapper/223:05:462
3106194991310,1cyclictest0-21swapper/222:44:472
3106194991310,1cyclictest0-21swapper/222:18:402
3106194991310,1cyclictest0-21swapper/220:59:412
3106194991310,1cyclictest0-21swapper/220:54:332
3106194991310,1cyclictest0-21swapper/220:39:432
3106194991310,1cyclictest0-21swapper/220:24:472
3106194991310,1cyclictest0-21swapper/220:04:462
3106194991310,1cyclictest0-21swapper/219:54:472
3106194991310,1cyclictest0-21swapper/219:44:472
3106194991310,1cyclictest0-21swapper/219:39:592
3106194991310,1cyclictest0-21swapper/219:34:462
3106194991310,1cyclictest0-21swapper/219:34:462
3106194991310,1cyclictest0-21swapper/219:29:462
3106194991310,1cyclictest0-21swapper/219:29:462
3106194991310,1cyclictest0-21swapper/219:24:482
3106194991310,1cyclictest0-21swapper/219:14:452
3106194991310,1cyclictest0-21swapper/200:39:472
3106194991310,1cyclictest0-21swapper/200:29:502
310619099139,3cyclictest3381092-21kworker/u16:1+nfsiod23:01:401
3106190991310,2cyclictest932-1atopacctd21:34:491
3106190991310,2cyclictest3142794-21mailstats19:34:481
3106190991310,2cyclictest3142794-21mailstats19:34:481
2213291134,2phc2sys0-21swapper/323:06:263
2213291134,2phc2sys0-21swapper/320:54:533
2213291130,3phc2sys0-21swapper/321:41:533
2213291130,2phc2sys0-21swapper/321:59:393
2213291130,2phc2sys0-21swapper/321:19:463
2213291130,2phc2sys0-21swapper/300:33:403
2213291130,2phc2sys0-21swapper/300:07:273
310619499129,1cyclictest0-21swapper/222:02:102
310619499129,1cyclictest0-21swapper/221:19:472
310619499121,6cyclictest0-21swapper/222:59:232
3106194991210,1cyclictest0-21swapper/220:44:462
310619099121,6cyclictest3106009-21latency_hist19:10:031
2213291123,2phc2sys0-21swapper/322:54:473
2213291121,2phc2sys0-21swapper/321:55:023
2213291120,4phc2sys0-21swapper/319:54:243
2213291120,2phc2sys0-21swapper/323:31:163
2213291120,2phc2sys0-21swapper/323:22:583
2213291120,2phc2sys0-21swapper/321:04:233
2213291120,2phc2sys0-21swapper/319:35:373
2213291120,1phc2sys0-21swapper/321:27:403
2213291120,1phc2sys0-21swapper/320:28:243
310619499118,1cyclictest0-21swapper/219:10:022
2213291112,2phc2sys0-21swapper/323:49:473
2213291111,2phc2sys0-21swapper/319:34:213
2213291111,2phc2sys0-21swapper/319:34:213
2213291110,3phc2sys0-21swapper/323:54:493
2213291110,2phc2sys0-21swapper/323:25:223
2213291110,2phc2sys0-21swapper/321:09:243
2213291110,2phc2sys0-21swapper/320:56:133
2213291110,2phc2sys0-21swapper/319:59:223
2213291110,1phc2sys0-21swapper/322:06:483
2213291110,1phc2sys0-21swapper/320:15:453
2213291101,3phc2sys0-21swapper/322:32:343
2213291101,2phc2sys0-21swapper/323:14:443
2213291100,2phc2sys0-21swapper/322:58:033
2213291100,2phc2sys0-21swapper/322:41:083
2213291100,2phc2sys0-21swapper/322:36:473
2213291100,2phc2sys0-21swapper/322:02:523
2213291100,2phc2sys0-21swapper/320:44:233
2213291100,2phc2sys0-21swapper/320:10:043
2213291100,2phc2sys0-21swapper/319:24:233
2213291100,2phc2sys0-21swapper/319:10:283
221329193,2phc2sys0-21swapper/322:45:163
221329191,2phc2sys0-21swapper/319:16:093
221329190,2phc2sys0-21swapper/323:35:123
221329190,2phc2sys0-21swapper/319:43:593
221329190,1phc2sys0-21swapper/320:49:083
221329190,1phc2sys0-21swapper/320:30:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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