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2026-09-12 - 13:53
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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 Sat Sep 12, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
367538421030,2sleep30-21swapper/322:30:013
359926021010,1sleep13599263-21expr21:49:301
36796892440,2sleep20-21swapper/222:34:332
37035202340,1sleep20-21swapper/222:48:082
36320012330,2sleep30-21swapper/322:05:473
3366354992414,8cyclictest778-21dbus-daemon23:30:011
3366353992315,5cyclictest3578705-21/usr/sbin/munin21:35:030
336635399228,8cyclictest0-21swapper/000:24:110
336635399221,8cyclictest3774449-21apt-get23:29:100
3366353992215,6cyclictest778-21dbus-daemon22:30:020
3366354992114,3cyclictest778-21dbus-daemon00:05:061
336635399219,6cyclictest0-21swapper/021:19:090
336635399218,7cyclictest0-21swapper/023:24:100
3366353992115,5cyclictest24615-21JS14:54:060
3366355992017,1cyclictest0-21swapper/222:50:462
3366353992011,5cyclictest3865595-21kthreadcore00:19:320
2213291200,5phc2sys0-21swapper/320:04:123
36827102190,2sleep00-21swapper/022:34:350
3366355991914,2cyclictest0-21swapper/219:19:132
3366354991914,1cyclictest82050irq/121-eno100:14:341
336635399199,6cyclictest3609020-21kthreadcore21:54:330
336635399197,7cyclictest0-21swapper/022:09:280
3366353991916,2cyclictest70-21kcompactd023:54:290
3366353991912,6cyclictest3885945-21phc2sys-jitter00:29:350
3366353991912,2cyclictest3830760-21kthreadcore23:59:330
3366353991911,7cyclictest3901001-21fschecks_count00:39:300
3366353991910,5cyclictest3813158-21kthreadcore23:49:310
2213291190,3phc2sys0-21swapper/321:50:013
2213291190,2phc2sys0-21swapper/323:34:523
2213291190,2phc2sys0-21swapper/323:11:233
336635599186,4cyclictest0-21swapper/200:34:122
3366355991815,1cyclictest0-21swapper/221:19:262
3366355991815,1cyclictest0-21swapper/200:00:012
336635499182,2cyclictest491rcuog/220:14:091
3366354991810,4cyclictest3619176-21kthreadcore21:59:351
3366354991810,3cyclictest0-21swapper/120:00:011
336635399189,5cyclictest3675408-21kworker/u16:3-rpciod23:19:100
336635399188,5cyclictest3840275-21kthreadcore00:04:330
336635399185,8cyclictest3493711-21sshd-session20:42:240
2213291181,7phc2sys0-21swapper/320:24:113
2213291181,11phc2sys0-21swapper/323:59:103
2213291180,2phc2sys0-21swapper/321:25:403
3366355991714,1cyclictest0-21swapper/223:00:002
3366355991714,1cyclictest0-21swapper/221:13:242
3366355991714,1cyclictest0-21swapper/221:13:242
3366354991714,2cyclictest3587200-21unix_chkpwd21:40:011
3366354991714,2cyclictest24815-21gsd-power23:02:461
3366354991713,3cyclictest3407251-21kthreadcore19:39:341
336635399179,4cyclictest3581317-21ssh21:39:280
336635399178,4cyclictest0-21swapper/023:14:240
336635399175,8cyclictest0-21swapper/023:30:160
3366353991714,2cyclictest3366351-21cyclictest20:14:330
3366353991714,2cyclictest171ktimers/021:24:450
2213291171,9phc2sys0-21swapper/323:29:103
2213291171,8phc2sys0-21swapper/321:09:113
2213291171,4phc2sys0-21swapper/319:59:113
336635599169,3cyclictest0-21swapper/200:19:092
3366355991613,1cyclictest0-21swapper/222:45:032
3366355991613,1cyclictest0-21swapper/221:36:382
3366355991613,1cyclictest0-21swapper/221:04:282
3366355991613,1cyclictest0-21swapper/220:52:592
3366355991613,1cyclictest0-21swapper/220:07:372
3366355991613,1cyclictest0-21swapper/200:14:342
336635599161,12cyclictest0-21swapper/223:04:102
3366355991610,3cyclictest0-21swapper/223:54:332
336635599160,5cyclictest0-21swapper/222:39:112
336635499169,5cyclictest3681136-21tr22:34:341
336635499169,5cyclictest3654052-21tr22:19:341
336635499165,3cyclictest0-21swapper/123:49:081
3366354991613,2cyclictest778-21dbus-daemon21:19:361
3366354991613,2cyclictest3881043-21cut00:29:281
3366354991613,2cyclictest3702073-21systemd-run22:45:031
3366354991613,2cyclictest1188-21runrttasks23:36:041
3366354991612,3cyclictest3784681-21kthreadcore23:34:321
3366354991612,3cyclictest3749449-21kthreadcore23:14:331
3366354991612,3cyclictest3744332-21kthreadcore23:09:371
3366354991612,3cyclictest3629905-21kthreadcore22:04:361
3366354991612,3cyclictest3531377-21kthreadcore21:09:361
3366354991612,3cyclictest24616-21JS14:54:061
3366354991611,4cyclictest70-21kcompactd023:59:291
3366354991611,4cyclictest3480790-21gltestperf20:34:301
3366354991610,4cyclictest3464937-21cut20:19:371
336635399169,4cyclictest3534551-21diskmemload23:09:370
336635399166,6cyclictest0-21swapper/022:05:010
336635399165,6cyclictest0-21swapper/022:48:240
336635399165,6cyclictest0-21swapper/022:14:090
336635399164,7cyclictest3701604-21unixbench_singl22:44:400
336635399164,7cyclictest0-21swapper/020:59:320
336635399161,3cyclictest0-21swapper/021:47:280
3366353991613,2cyclictest3589879-21cut21:44:280
336635399160,4cyclictest3897973-21sh00:35:000
2447398160,2rtkit-daemon0-21swapper/022:58:540
2213291161,2phc2sys0-21swapper/322:44:103
2213291160,2phc2sys0-21swapper/319:14:313
336635599158,4cyclictest3403695-21taskset19:35:032
3366355991513,1cyclictest0-21swapper/219:55:022
3366355991513,1cyclictest0-21swapper/219:55:022
3366355991513,1cyclictest0-21swapper/219:35:032
3366355991512,1cyclictest0-21swapper/223:44:312
3366355991512,1cyclictest0-21swapper/223:37:122
3366355991512,1cyclictest0-21swapper/223:10:012
3366355991512,1cyclictest0-21swapper/222:18:562
3366355991512,1cyclictest0-21swapper/222:14:332
3366355991512,1cyclictest0-21swapper/222:09:322
3366355991512,1cyclictest0-21swapper/221:54:332
3366355991512,1cyclictest0-21swapper/221:42:032
3366355991512,1cyclictest0-21swapper/220:55:082
3366355991512,1cyclictest0-21swapper/220:49:392
3366355991512,1cyclictest0-21swapper/220:39:322
3366355991512,1cyclictest0-21swapper/220:30:012
3366355991512,1cyclictest0-21swapper/220:24:342
3366355991512,1cyclictest0-21swapper/219:14:382
3366355991512,1cyclictest0-21swapper/200:39:312
336635599150,13cyclictest0-21swapper/221:29:092
336635499158,3cyclictest3757737-21hddtemp_smartct23:19:291
336635499155,4cyclictest3765695-21aten_repower_en23:24:141
336635499152,8cyclictest3373252-21awk19:15:011
336635499151,8cyclictest3563157-21apt-get21:29:091
3366354991512,2cyclictest3863206-21sh00:19:281
3366354991512,2cyclictest24648-21gmain22:08:551
3366354991512,2cyclictest1-21systemd21:31:221
3366354991511,3cyclictest3892932-21kthreadcore00:34:331
3366354991511,3cyclictest3727593-21sendmail_mailqu22:59:371
3366354991511,3cyclictest3714079-21irqrtprio22:54:321
3366354991511,3cyclictest3669926-21irqcore22:29:311
3366354991511,3cyclictest3661168-21irqcore22:24:321
3366354991511,3cyclictest3608959-21kthreadcore21:54:331
3366354991511,3cyclictest3592422-21kthreadcore21:44:341
3366354991511,3cyclictest3522734-21irqrtprio21:04:311
3366354991511,3cyclictest3518248-21kthreadcore20:59:331
3366354991511,3cyclictest3495652-21kthreadcore20:44:331
3366354991511,3cyclictest3488686-21kthreadcore20:39:321
3366354991511,3cyclictest3477610-21kthreadcore20:29:341
3366354991511,3cyclictest3467954-21kthreadcore20:24:321
3366354991511,3cyclictest3412153-21irqrtprio19:44:311
336635399159,5cyclictest3587502-21kworker/u16:0-events_unbound22:54:370
336635399157,4cyclictest3790810-21rm23:36:220
336635399156,7cyclictest3504923-21tr20:49:330
336635399151,9cyclictest3489498-21kthreadcore20:39:320
3366353991512,2cyclictest3522641-21irqrtprio21:04:310
3366353991512,2cyclictest3438792-21cpu20:04:290
3366353991512,2cyclictest3390412-21cpu19:29:280
3366353991512,2cyclictest3366351-21cyclictest20:30:520
3366353991512,2cyclictest24648-21gmain23:43:550
3366353991512,2cyclictest1188-21runrttasks22:17:260
3366353991511,3cyclictest3807666-21kworker/u16:1+nfsiod00:08:010
3366353991511,3cyclictest3563298-21aten_repower_fr21:29:160
3366353991511,3cyclictest3534933-21kworker/u16:3+nfsiod21:57:080
2213291150,3phc2sys0-21swapper/321:11:283
2213291150,3phc2sys0-21swapper/321:11:283
2213291150,3phc2sys0-21swapper/300:15:043
34523622142,8sleep30-21swapper/320:14:093
336635599142,4cyclictest34109442sleep219:44:102
336635599141,7cyclictest0-21swapper/221:09:122
336635599141,6cyclictest0-21swapper/221:24:132
3366355991412,1cyclictest0-21swapper/200:25:032
3366355991411,1cyclictest0-21swapper/223:34:282
3366355991411,1cyclictest0-21swapper/223:18:352
3366355991411,1cyclictest0-21swapper/222:04:232
3366355991411,1cyclictest0-21swapper/221:49:342
3366355991411,1cyclictest0-21swapper/221:31:452
3366355991411,1cyclictest0-21swapper/220:43:392
3366355991411,1cyclictest0-21swapper/220:19:322
3366355991411,1cyclictest0-21swapper/219:24:342
3366355991411,1cyclictest0-21swapper/200:09:372
3366355991410,2cyclictest0-21swapper/223:14:322
3366355991410,2cyclictest0-21swapper/220:34:332
3366355991410,2cyclictest0-21swapper/200:04:292
336635599140,8cyclictest0-21swapper/222:24:112
336635599140,12cyclictest0-21swapper/223:25:052
336635499147,5cyclictest3438946-21cut20:04:291
3366354991411,2cyclictest3906626-21unixbench_singl00:39:411
3366354991411,2cyclictest3833922-21packagekitd00:00:261
3366354991411,2cyclictest3394770-21kthreadcore19:29:341
3366354991411,2cyclictest3373330-21munin-node21:12:141
3366354991411,2cyclictest3373330-21munin-node21:12:141
3366354991411,2cyclictest3366351-21cyclictest20:49:311
3366354991411,2cyclictest24472-21rtkit-daemon21:22:301
3366354991411,2cyclictest24472-21rtkit-daemon00:21:141
3366354991410,3cyclictest3802456-21kthreadcore23:44:341
3366354991410,3cyclictest3706781-21kthreadcore22:49:321
3366354991410,3cyclictest3688367-21kthreadcore22:39:331
3366354991410,3cyclictest3631439-21kworker/u16:2+nfsiod22:13:311
3366354991410,3cyclictest3509689-21kthreadcore20:54:331
3366354991410,3cyclictest3448594-21kthreadcore20:09:331
3366354991410,3cyclictest3427510-21kthreadcore19:54:331
3366354991410,3cyclictest3427510-21kthreadcore19:54:331
3366354991410,3cyclictest3419179-21kthreadcore19:49:311
3366354991410,3cyclictest3419179-21kthreadcore19:49:311
3366354991410,3cyclictest3398341-21irqrtprio19:34:321
3366354991410,3cyclictest3380646-21kthreadcore19:19:361
336635399149,4cyclictest932-1atopacctd22:24:330
336635399141,8cyclictest3507616-21/usr/sbin/munin20:54:280
336635399141,1cyclictest3473085-21apt-get20:29:100
3366353991411,2cyclictest777-21avahi-daemon19:24:380
3366353991411,2cyclictest3731243-21gltestperf23:04:290
3366353991411,2cyclictest3537425-21sh21:14:290
3366353991411,2cyclictest3537425-21sh21:14:290
3366353991411,2cyclictest3529019-21cut21:09:300
3366353991411,2cyclictest3465061-21sendmail_mailqu20:19:380
3366353991411,2cyclictest3367101-21aten_repower_vo19:14:250
3366353991410,3cyclictest3448879-21kthreadcore20:09:330
3366353991410,3cyclictest3400158-21kthreadcore19:34:350
33599932141,6sleep20-21swapper/219:09:112
2213291140,4phc2sys0-21swapper/321:44:333
2213291140,3phc2sys0-21swapper/322:56:093
2213291140,3phc2sys0-21swapper/300:08:263
2213291140,2phc2sys0-21swapper/323:43:403
2213291140,2phc2sys0-21swapper/322:49:513
2213291140,2phc2sys0-21swapper/321:30:543
2213291140,2phc2sys0-21swapper/321:16:143
2213291140,1phc2sys0-21swapper/319:40:273
33902272130,6sleep20-21swapper/219:29:112
336635599139,2cyclictest0-21swapper/220:00:012
336635599131,7cyclictest0-21swapper/200:29:092
3366355991310,1cyclictest0-21swapper/223:49:122
3366355991310,1cyclictest0-21swapper/222:00:002
3366355991310,1cyclictest0-21swapper/220:12:032
3366355991310,1cyclictest0-21swapper/220:04:292
3366355991310,1cyclictest0-21swapper/219:49:322
3366355991310,1cyclictest0-21swapper/219:49:322
336635499136,5cyclictest376-21systemd-journal23:50:241
336635399134,5cyclictest0-21swapper/020:22:590
336635399134,5cyclictest0-21swapper/019:48:040
336635399134,5cyclictest0-21swapper/019:48:040
336635399131,4cyclictest3854149-21tr00:14:270
3366353991310,2cyclictest3437732-21unixbench-2d19:59:400
3366353991310,2cyclictest3429303-21kthreadcore19:54:340
3366353991310,2cyclictest3429303-21kthreadcore19:54:340
3366353991310,2cyclictest3411021-21aten_repower_en19:44:140
3366353991310,2cyclictest3405137-21irqcore19:39:310
3366353991310,2cyclictest3379697-21kthreadcore19:19:360
2213291135,2phc2sys0-21swapper/321:20:273
2213291131,2phc2sys0-21swapper/323:01:253
2213291131,2phc2sys0-21swapper/300:37:313
2213291130,4phc2sys0-21swapper/323:53:383
2213291130,4phc2sys0-21swapper/322:13:203
2213291130,3phc2sys0-21swapper/300:22:273
2213291130,2phc2sys0-21swapper/323:24:103
2213291130,2phc2sys0-21swapper/322:35:163
2213291130,2phc2sys0-21swapper/322:02:173
2213291130,2phc2sys0-21swapper/321:54:193
2213291130,2phc2sys0-21swapper/300:26:093
2213291130,2phc2sys0-21swapper/300:12:563
336635599129,1cyclictest0-21swapper/223:21:012
336635599129,1cyclictest0-21swapper/222:25:432
336635499125,5cyclictest1-21systemd19:10:031
2213291127,2phc2sys0-21swapper/321:59:453
2213291121,2phc2sys0-21swapper/320:59:103
2213291120,4phc2sys0-21swapper/323:05:223
2213291120,3phc2sys0-21swapper/322:34:113
2213291120,3phc2sys0-21swapper/321:39:353
2213291120,3phc2sys0-21swapper/319:25:523
2213291120,2phc2sys0-21swapper/319:49:363
2213291120,2phc2sys0-21swapper/319:49:363
2213291120,1phc2sys0-21swapper/322:53:053
2213291120,1phc2sys0-21swapper/320:35:423
2213291120,1phc2sys0-21swapper/300:30:533
336635399111,4cyclictest3366174-21latency_hist19:10:010
2213291111,6phc2sys0-21swapper/322:24:113
2213291111,4phc2sys0-21swapper/320:44:113
2213291111,2phc2sys0-21swapper/322:19:363
2213291111,2phc2sys0-21swapper/320:34:303
2213291110,3phc2sys0-21swapper/320:54:343
2213291110,2phc2sys0-21swapper/323:18:213
2213291110,2phc2sys0-21swapper/320:19:113
2213291110,1phc2sys0-21swapper/320:47:283
2213291110,1phc2sys0-21swapper/320:07:323
2213291101,4phc2sys0-21swapper/320:29:103
2213291101,2phc2sys0-21swapper/321:04:313
2213291101,2phc2sys0-21swapper/319:35:023
2213291100,5phc2sys0-21swapper/319:54:113
2213291100,5phc2sys0-21swapper/319:54:113
2213291100,2phc2sys0-21swapper/300:00:063
221329191,2phc2sys0-21swapper/319:09:333
221329190,2phc2sys0-21swapper/323:46:553
221329190,2phc2sys0-21swapper/323:35:043
221329190,2phc2sys0-21swapper/319:38:433
221329190,2phc2sys0-21swapper/319:24:323
221329190,2phc2sys0-21swapper/319:15:583
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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