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2026-05-31 - 13:01
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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 Sun May 31, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
362637021030,3sleep30-21swapper/300:04:523
34268712900,2sleep20-21swapper/221:50:032
3213847992421,2cyclictest1290-21dbus-daemon23:55:020
3213848992316,3cyclictest3659196-21kthreadcore00:24:531
3213847992315,3cyclictest3291803-21/usr/sbin/munin20:14:460
3213847992311,6cyclictest0-21swapper/023:25:000
3213849992217,3cyclictest3653182-21taskset00:20:022
3213847992220,1cyclictest3501858-21apt-key22:40:000
3213847992215,6cyclictest2840498-21systemd-journal21:10:010
3213847992214,7cyclictest3647671-21cstates00:19:450
3213847992214,7cyclictest0-21swapper/023:20:000
35751772210,2sleep20-21swapper/223:29:512
33350832210,2sleep30-21swapper/320:44:583
3213849992118,1cyclictest0-21swapper/220:40:002
3213848992118,2cyclictest3419550-21kworker/u16:3-ext4-rsv-conversion22:20:011
3213848992118,2cyclictest0-21swapper/122:30:001
3213848992116,1cyclictest134050irq/121-eno122:39:461
3213849992017,1cyclictest0-21swapper/222:40:022
3213849992017,1cyclictest0-21swapper/222:00:002
3213848992014,2cyclictest134050irq/121-eno121:17:591
321384799209,6cyclictest0-21swapper/021:24:540
321384799200,3cyclictest3367159-21ssh21:11:230
3213849991916,1cyclictest0-21swapper/223:40:002
321384999190,8cyclictest0-21swapper/222:29:452
3213848991916,2cyclictest3824565-21in:imuxsock23:35:021
3213848991916,2cyclictest3637702-21apt-key00:10:001
3213848991916,2cyclictest1-21systemd00:35:021
3213848991913,5cyclictest3827634-1atopacctd19:49:531
321384899191,14cyclictest3645528-21munin-run00:15:001
3213848991911,3cyclictest0-21swapper/123:49:451
321384799198,6cyclictest0-21swapper/022:57:050
321384799198,4cyclictest3851705-21mta-sts-daemon23:30:020
321384799197,8cyclictest3642576-21kthreadcore00:14:520
3213847991916,2cyclictest3827634-1atopacctd22:19:590
3213847991912,6cyclictest3406263-21cstates21:39:460
2649091190,2phc2sys0-21swapper/321:12:383
3213849991815,1cyclictest0-21swapper/223:24:562
3213849991815,1cyclictest0-21swapper/221:34:442
3213849991814,2cyclictest0-21swapper/221:44:492
3213848991815,2cyclictest3449630-21dconf22:38:461
3213848991815,2cyclictest3359890-21threads21:04:561
3213848991815,2cyclictest3341419-21apt20:50:011
3213848991815,2cyclictest0-21swapper/123:40:001
3213848991815,2cyclictest0-21swapper/121:15:001
3213848991814,3cyclictest3220407-21fschecks_time19:15:011
3213848991812,2cyclictest134050irq/121-eno100:30:011
3213848991810,5cyclictest1290-21dbus-daemon22:25:011
3213848991810,4cyclictest3549242-21aten2.4-expect23:14:461
3213848991810,3cyclictest3647271-21/usr/sbin/munin00:19:461
321384799189,8cyclictest0-21swapper/021:54:430
321384799187,6cyclictest0-21swapper/000:39:460
321384799187,6cyclictest0-21swapper/000:39:450
321384799183,5cyclictest491rcuog/221:48:510
3213847991815,2cyclictest3303681-21sendmail20:20:000
3213847991815,2cyclictest3213841-21cyclictest20:34:560
3213847991815,2cyclictest1290-21dbus-daemon22:00:010
3213847991814,3cyclictest3464140-21/usr/sbin/munin22:15:000
3213847991814,2cyclictest0-21swapper/019:15:030
3213847991812,5cyclictest3827634-1atopacctd21:44:530
3213847991810,4cyclictest0-21swapper/022:05:480
2649091180,2phc2sys0-21swapper/321:58:193
34363142170,2sleep10-21swapper/121:59:481
3213849991715,1cyclictest0-21swapper/223:50:022
3213849991715,1cyclictest0-21swapper/222:45:012
3213849991715,1cyclictest0-21swapper/200:25:012
3213849991714,1cyclictest0-21swapper/221:19:582
3213849991714,1cyclictest0-21swapper/219:10:012
321384899179,3cyclictest3629436-21grep00:04:551
3213848991715,1cyclictest3322411-21apt-get20:35:001
3213848991714,2cyclictest3851705-21mta-sts-daemon23:56:501
3213848991714,2cyclictest3539750-21cron23:05:001
3213848991714,2cyclictest3429339-21irqcore21:54:471
3213848991714,2cyclictest1326-21systemd-logind21:45:021
3213848991714,2cyclictest0-21swapper/122:55:011
3213848991711,5cyclictest3851705-21mta-sts-daemon19:44:531
321384799178,7cyclictest0-21swapper/021:35:010
321384799171,9cyclictest1290-21dbus-daemon20:00:010
3213847991714,2cyclictest3597234-21kthreadcore23:44:530
3213847991714,2cyclictest3349091-21gltestperf20:59:480
3213847991714,2cyclictest1290-21dbus-daemon21:30:000
3213847991714,2cyclictest1-21systemd23:14:580
3213847991713,3cyclictest3381256-21timerwakeupswit21:19:590
3213847991711,5cyclictest3542265-21gltestperf23:09:480
2649091170,2phc2sys0-21swapper/322:33:503
321384999166,5cyclictest0-21swapper/222:10:002
3213849991614,1cyclictest0-21swapper/223:05:022
3213849991614,1cyclictest0-21swapper/223:00:002
3213849991614,1cyclictest0-21swapper/220:50:002
3213849991613,1cyclictest0-21swapper/222:14:562
3213849991613,1cyclictest0-21swapper/221:49:512
3213849991613,1cyclictest0-21swapper/221:24:592
3213849991613,1cyclictest0-21swapper/220:10:012
3213849991613,1cyclictest0-21swapper/219:59:502
3213849991613,1cyclictest0-21swapper/200:06:382
3213849991612,2cyclictest0-21swapper/223:42:582
3213849991612,2cyclictest0-21swapper/200:32:052
3213849991612,2cyclictest0-21swapper/200:14:462
321384999160,9cyclictest0-21swapper/220:59:452
3213848991613,2cyclictest3678921-21kthreadcore00:39:501
3213848991613,2cyclictest3678921-21kthreadcore00:39:501
3213848991613,2cyclictest3595103-21if_err_enp1s023:44:511
3213848991613,2cyclictest3564209-21aten2.4-expect23:24:471
3213848991613,2cyclictest3406882-21irqcore21:39:501
3213848991613,2cyclictest3396707-21cut21:30:021
3213848991613,2cyclictest3234905-21latency_hist19:25:011
3213848991613,2cyclictest0-21swapper/121:00:011
3213848991612,3cyclictest3363530-21kthreadcore21:09:521
3213848991611,2cyclictest3851702-21mta-sts-daemon22:13:121
321384899160,14cyclictest3511441-21apt-get22:49:431
321384799169,2cyclictest1-21systemd19:55:020
321384799166,4cyclictest0-21swapper/022:24:470
321384799165,6cyclictest0-21swapper/019:26:060
321384799163,9cyclictest0-21swapper/023:56:080
3213847991613,2cyclictest3625717-21kthreadcore00:04:510
3213847991613,2cyclictest3607698-21systemd23:50:020
3213847991613,2cyclictest3592637-21cut23:40:010
3213847991613,2cyclictest3489388-21ethtool22:34:490
3213847991613,2cyclictest3247559-21latency_hist19:35:000
3213847991613,2cyclictest3229434-21tail19:24:440
3213847991612,2cyclictest3228896-21munin-plugin-st19:20:020
3213847991612,2cyclictest0-21swapper/022:55:010
2649091160,3phc2sys0-21swapper/321:52:293
2649091160,2phc2sys0-21swapper/323:35:243
2649091160,2phc2sys0-21swapper/321:37:083
383433398150,4rtkit-daemon3851703-21mta-sts-daemon22:43:250
321384999151,8cyclictest0-21swapper/219:30:002
3213849991513,1cyclictest0-21swapper/221:30:022
3213849991512,1cyclictest0-21swapper/223:34:512
3213849991512,1cyclictest0-21swapper/223:14:022
3213849991512,1cyclictest0-21swapper/222:34:432
3213849991512,1cyclictest0-21swapper/221:04:002
3213849991512,1cyclictest0-21swapper/220:53:052
3213849991512,1cyclictest0-21swapper/219:55:002
3213849991512,1cyclictest0-21swapper/219:34:512
321384899154,6cyclictest3373668-21kworker/u16:1+nfsiod21:33:261
3213848991513,1cyclictest0-21swapper/121:25:021
3213848991512,2cyclictest3611230-21kthreadcore23:54:531
3213848991512,2cyclictest3572460-21head23:29:481
3213848991512,2cyclictest3561658-21open_files23:19:561
3213848991512,2cyclictest3223635-21fschecks_time19:19:471
3213848991512,2cyclictest0-21swapper/122:04:421
3213848991512,2cyclictest0-21swapper/122:04:421
3213848991512,2cyclictest0-21swapper/120:30:001
3213848991511,3cyclictest3506512-21kthreadcore22:44:521
3213848991511,3cyclictest3423656-21kthreadcore21:49:511
321384799159,5cyclictest3851702-21mta-sts-daemon22:00:210
321384799159,5cyclictest3851702-21mta-sts-daemon22:00:200
321384799159,5cyclictest3291175-21systemd-run20:10:000
321384799157,7cyclictest0-21swapper/000:25:010
321384799156,4cyclictest0-21swapper/023:29:470
321384799155,6cyclictest0-21swapper/022:26:480
321384799155,6cyclictest0-21swapper/020:03:060
321384799155,2cyclictest0-21swapper/020:29:440
321384799151,9cyclictest3515645-21cut22:49:510
3213847991512,2cyclictest3824565-21in:imuxsock00:09:050
3213847991512,2cyclictest3305273-21irqcore20:24:510
3213847991512,2cyclictest3253234-21ptp4l-jitter19:39:550
3213847991512,2cyclictest3213841-21cyclictest19:45:020
3213847991511,3cyclictest3326833-21kthreadcore20:39:520
2649091150,2phc2sys0-21swapper/323:56:323
321384999141,7cyclictest0-21swapper/223:10:002
3213849991412,1cyclictest0-21swapper/223:54:512
3213849991412,1cyclictest0-21swapper/222:04:502
3213849991412,1cyclictest0-21swapper/222:04:502
3213849991412,1cyclictest0-21swapper/221:11:442
3213849991411,1cyclictest0-21swapper/223:55:542
3213849991411,1cyclictest0-21swapper/222:23:042
3213849991411,1cyclictest0-21swapper/222:19:562
3213849991411,1cyclictest0-21swapper/220:45:002
3213849991411,1cyclictest0-21swapper/220:29:512
3213849991411,1cyclictest0-21swapper/219:39:522
3213849991411,1cyclictest0-21swapper/200:35:122
3213849991411,1cyclictest0-21swapper/200:35:122
3213849991411,1cyclictest0-21swapper/200:01:572
3213849991410,2cyclictest0-21swapper/221:37:522
3213849991410,2cyclictest0-21swapper/220:34:502
3213849991410,2cyclictest0-21swapper/220:24:522
3213849991410,2cyclictest0-21swapper/220:19:522
3213849991410,2cyclictest0-21swapper/219:18:062
321384899149,4cyclictest3851705-21mta-sts-daemon20:42:201
321384899149,4cyclictest3851702-21mta-sts-daemon20:19:221
321384899149,1cyclictest134050irq/121-eno119:29:451
321384899148,5cyclictest3851702-21mta-sts-daemon19:38:431
321384899148,5cyclictest3509795-21kworker/u16:1-nfsiod22:58:471
3213848991411,2cyclictest3542912-21kthreadcore23:09:511
3213848991411,2cyclictest3287014-21kthreadcore20:09:501
3213848991411,2cyclictest3242443-21sh19:34:461
3213848991410,3cyclictest3304440-21aten_repower_fr20:24:461
3213848991410,3cyclictest3270069-21kthreadcore19:54:521
321384799141,7cyclictest3329606-21apt-get20:44:450
3213847991411,2cyclictest3851705-21mta-sts-daemon23:04:280
3213847991411,2cyclictest3834332-21rtkit-daemon00:31:400
3213847991411,2cyclictest3213917-21latency_hist19:10:010
3213847991411,2cyclictest3213841-21cyclictest21:00:380
3213847991411,2cyclictest0-21swapper/000:29:450
321384799140,1cyclictest0-21swapper/020:54:460
2649091140,2phc2sys0-21swapper/322:17:593
2649091140,2phc2sys0-21swapper/319:49:573
2649091140,2phc2sys0-21swapper/300:36:303
2649091140,2phc2sys0-21swapper/300:36:303
2649091140,1phc2sys0-21swapper/322:00:573
2649091140,1phc2sys0-21swapper/322:00:573
2649091140,1phc2sys0-21swapper/319:24:253
35109172130,4sleep30-21swapper/322:48:183
321384999132,5cyclictest0-21swapper/220:14:442
3213849991311,1cyclictest0-21swapper/223:16:262
3213849991311,1cyclictest0-21swapper/222:48:042
3213849991310,1cyclictest0-21swapper/222:53:202
3213849991310,1cyclictest0-21swapper/219:44:532
321384999130,10cyclictest3214060-21chrt19:10:032
321384899138,4cyclictest3851702-21mta-sts-daemon20:14:001
321384899138,4cyclictest3213841-21cyclictest19:55:271
321384899131,6cyclictest3279550-21grep20:04:461
3213848991310,2cyclictest3851703-21mta-sts-daemon22:30:461
3213848991310,2cyclictest3344406-21kthreadcore20:54:521
321384799134,3cyclictest3260508-21sshd19:48:060
3213847991310,2cyclictest3220134-21munin-node20:49:060
2649091136,2phc2sys0-21swapper/320:30:003
2649091134,2phc2sys0-21swapper/323:24:553
2649091131,5phc2sys0-21swapper/319:19:433
2649091130,5phc2sys0-21swapper/320:49:443
2649091130,2phc2sys0-21swapper/321:26:563
2649091130,2phc2sys0-21swapper/300:21:143
2649091130,1phc2sys0-21swapper/323:34:293
2649091130,1phc2sys0-21swapper/322:57:433
2649091130,1phc2sys0-21swapper/322:05:483
2649091130,1phc2sys0-21swapper/321:03:363
2649091130,1phc2sys0-21swapper/300:34:313
2649091130,1phc2sys0-21swapper/300:10:383
383433398120,5rtkit-daemon3851705-21mta-sts-daemon20:36:151
321384999129,1cyclictest0-21swapper/220:03:152
321384999129,1cyclictest0-21swapper/219:47:402
3213849991210,1cyclictest0-21swapper/221:07:562
3213849991210,1cyclictest0-21swapper/219:23:512
3213849991210,1cyclictest0-21swapper/200:27:492
2649091121,2phc2sys0-21swapper/320:24:523
2649091120,3phc2sys0-21swapper/322:24:443
2649091120,3phc2sys0-21swapper/300:08:333
2649091120,2phc2sys0-21swapper/323:50:233
2649091120,2phc2sys0-21swapper/322:14:583
2649091120,1phc2sys0-21swapper/320:58:273
2649091110,3phc2sys0-21swapper/321:09:453
2649091110,3phc2sys0-21swapper/320:19:433
2649091110,1phc2sys0-21swapper/323:10:313
2649091110,1phc2sys0-21swapper/322:25:043
2649091110,1phc2sys0-21swapper/320:35:223
2649091110,1phc2sys0-21swapper/320:06:043
2649091110,1phc2sys0-21swapper/319:54:263
2649091110,1phc2sys0-21swapper/300:27:223
2649091103,3phc2sys0-21swapper/300:18:233
2649091102,2phc2sys0-21swapper/323:15:433
2649091102,2phc2sys0-21swapper/322:39:513
2649091100,2phc2sys0-21swapper/323:44:453
2649091100,2phc2sys0-21swapper/323:04:443
2649091100,2phc2sys0-21swapper/322:42:443
2649091100,2phc2sys0-21swapper/321:46:493
2649091100,2phc2sys0-21swapper/321:18:433
2649091100,2phc2sys0-21swapper/319:55:293
2649091100,2phc2sys0-21swapper/319:44:443
2649091100,2phc2sys0-21swapper/319:34:413
3208150291,4sleep13208183-21apt-get19:09:431
264909191,2phc2sys0-21swapper/321:30:053
264909191,2phc2sys0-21swapper/320:34:503
264909191,2phc2sys0-21swapper/319:29:503
264909191,1phc2sys0-21swapper/319:35:553
264909190,2phc2sys0-21swapper/323:45:263
264909190,2phc2sys0-21swapper/323:25:253
264909190,2phc2sys0-21swapper/323:05:533
264909190,2phc2sys0-21swapper/322:50:293
264909190,2phc2sys0-21swapper/321:40:033
264909190,2phc2sys0-21swapper/321:20:033
264909190,2phc2sys0-21swapper/320:54:263
264909190,2phc2sys0-21swapper/320:14:503
264909190,2phc2sys0-21swapper/320:04:453
264909190,1phc2sys0-21swapper/319:11:183
264909180,2phc2sys0-21swapper/319:05:053
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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