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2026-07-28 - 04:55
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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 Tue Jul 28, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20617432840,1sleep02061741-21ssh23:21:050
20395732720,1sleep12039572-21ssh23:06:551
1714073992723,2cyclictest2040616-21cron23:10:010
1714073992421,2cyclictest1936628-21wc22:00:010
1714073992411,7cyclictest0-21swapper/023:30:450
171407499236,4cyclictest191rcu_preempt00:10:011
1157598230,7rtkit-daemon1307-21mta-sts-daemon00:29:590
1714075992219,1cyclictest0-21swapper/223:00:012
1714074992219,2cyclictest664-21dbus-daemon19:30:021
1714074992215,3cyclictest2004025-21/usr/sbin/munin22:45:581
1714075992118,1cyclictest0-21swapper/200:15:012
1714074992110,4cyclictest1862836-21unin-run21:10:021
1714073992118,2cyclictest1-21systemd22:40:010
1714073992111,6cyclictest0-21swapper/022:05:510
1714073992110,5cyclictest1307-21mta-sts-daemon21:10:180
1157598210,4rtkit-daemon1306-21mta-sts-daemon20:05:200
21236462200,2sleep30-21swapper/300:05:493
1714074992017,2cyclictest664-21dbus-daemon23:45:001
1714074992017,2cyclictest1885084-21wc21:25:021
1714074992015,4cyclictest2159480-21unin-run00:30:011
1714075991917,1cyclictest0-21swapper/222:00:012
1714075991916,1cyclictest0-21swapper/223:20:012
1714075991916,1cyclictest0-21swapper/222:05:482
1714075991916,1cyclictest0-21swapper/219:30:012
171407499196,2cyclictest191rcu_preempt19:45:441
1714074991916,2cyclictest664-21dbus-daemon20:45:011
1714073991916,2cyclictest2055378-21latency_hist23:20:020
1714073991916,2cyclictest1-21systemd23:40:000
1714073991916,2cyclictest1-21systemd00:40:030
1714073991914,4cyclictest2018958-21aten_repower_vo22:55:470
1714073991911,6cyclictest0-21swapper/022:45:020
1714073991910,8cyclictest0-21swapper/023:10:450
3240591180,2phc2sys0-21swapper/321:33:113
3240591180,2phc2sys0-21swapper/321:00:493
1714075991816,1cyclictest0-21swapper/223:50:022
1714075991816,1cyclictest0-21swapper/221:20:472
1714075991816,1cyclictest0-21swapper/221:20:022
1714075991816,1cyclictest0-21swapper/220:50:012
1714075991815,1cyclictest0-21swapper/223:40:002
1714075991815,1cyclictest0-21swapper/222:35:442
1714075991815,1cyclictest0-21swapper/222:35:022
1714075991815,1cyclictest0-21swapper/200:35:022
1714075991815,1cyclictest0-21swapper/200:00:462
1714075991813,2cyclictest0-21swapper/223:27:132
171407499189,4cyclictest0-21swapper/100:35:021
171407499182,7cyclictest1877503-21latency_hist21:20:011
1714074991815,2cyclictest664-21dbus-daemon21:15:021
1714074991815,2cyclictest1981276-21latency_hist22:30:021
1714074991814,3cyclictest1803624-21kthreadcore20:20:511
171407399189,5cyclictest1957295-21unixbench-2d22:10:570
171407399188,6cyclictest0-21swapper/023:55:530
171407399187,5cyclictest0-21swapper/021:40:520
171407399186,6cyclictest0-21swapper/021:25:450
1714073991815,2cyclictest1832112-21apt-config20:45:000
1714073991815,2cyclictest1762207-21kthreadcore19:45:520
1714073991815,2cyclictest0-21swapper/021:20:430
3240591170,2phc2sys0-21swapper/323:13:563
3240591170,2phc2sys0-21swapper/322:51:023
3240591170,2phc2sys0-21swapper/322:18:333
3240591170,2phc2sys0-21swapper/322:03:503
3240591170,2phc2sys0-21swapper/300:04:013
1714075991714,1cyclictest0-21swapper/223:10:512
1714075991714,1cyclictest0-21swapper/220:14:182
1714075991714,1cyclictest0-21swapper/219:45:522
1714075991714,1cyclictest0-21swapper/219:44:082
1714075991714,1cyclictest0-21swapper/200:20:552
1714075991713,2cyclictest0-21swapper/223:55:452
1714075991713,2cyclictest0-21swapper/219:35:552
171407499179,3cyclictest0-21swapper/123:30:021
171407499179,3cyclictest0-21swapper/123:00:511
171407499175,3cyclictest1922460-21tail21:50:441
171407499174,3cyclictest191rcu_preempt19:10:011
1714074991715,1cyclictest1966296-21systemd-run22:20:011
1714074991714,2cyclictest684-21systemd-logind23:15:021
1714074991714,2cyclictest2137482-21systemd00:15:031
1714074991714,2cyclictest2056798-21uniq23:20:471
1714074991714,2cyclictest1952746-21sh22:10:481
1714074991714,2cyclictest1753191-21systemd-run19:40:021
1714074991714,2cyclictest1747165-21munin-plugin-st19:35:031
1714074991714,2cyclictest1721981-21entropy19:15:031
1714074991710,6cyclictest2078362-21/usr/sbin/munin23:35:521
171407399178,2cyclictest0-21swapper/022:20:420
171407399177,5cyclictest0-21swapper/023:00:470
1714073991714,2cyclictest1982324-21gltestperf22:30:490
1714073991714,2cyclictest1927505-21mailstats21:50:560
1714073991714,2cyclictest0-21swapper/021:35:020
1714073991713,2cyclictest1844635-21latency_hist20:55:020
3240591161,2phc2sys0-21swapper/300:24:393
1714075991614,1cyclictest0-21swapper/222:41:342
1714075991614,1cyclictest0-21swapper/221:00:542
1714075991613,1cyclictest0-21swapper/222:22:252
1714075991613,1cyclictest0-21swapper/222:15:502
1714075991613,1cyclictest0-21swapper/221:30:562
1714075991613,1cyclictest0-21swapper/221:00:002
1714075991613,1cyclictest0-21swapper/220:35:012
1714075991613,1cyclictest0-21swapper/220:25:512
1714075991613,1cyclictest0-21swapper/219:30:542
1714075991613,1cyclictest0-21swapper/200:35:502
1714075991613,1cyclictest0-21swapper/200:15:462
1714075991611,2cyclictest0-21swapper/222:51:502
171407499169,1cyclictest501rcuop/223:50:121
171407499169,1cyclictest501rcuop/223:30:451
1714074991613,2cyclictest662-21avahi-daemon21:27:101
1714074991613,2cyclictest1973605-21cron22:25:001
1714074991613,2cyclictest1949550-21processes22:05:561
1714074991613,2cyclictest1800982-21mailstats20:15:561
1714074991613,2cyclictest1783353-21apt-key20:05:011
1714074991613,2cyclictest11574-21rtkit-daemon22:38:191
1714074991613,2cyclictest0-21swapper/100:00:571
1714074991612,1cyclictest2166895-21kworker/1:1+events_freezable00:39:141
1714074991611,4cyclictest11574-21rtkit-daemon20:34:221
1714074991610,1cyclictest501rcuop/223:15:251
171407399161,3cyclictest2161166-21ssh00:30:510
1714073991613,2cyclictest664-21dbus-daemon23:50:020
1714073991613,2cyclictest2135444-21mailstats00:10:560
1714073991613,2cyclictest1964190-21needreboot22:15:540
1714073991613,2cyclictest1838384-21sh20:50:000
1714073991613,2cyclictest1795691-21turbostat20:15:010
1714073991613,2cyclictest1740943-21gmain19:30:010
1714073991613,2cyclictest1309-21mta-sts-daemon21:45:420
1714073991612,2cyclictest1856830-21systemd21:05:020
3240591151,2phc2sys0-21swapper/320:40:013
3240591150,4phc2sys0-21swapper/322:26:333
3240591150,2phc2sys0-21swapper/323:36:573
3240591150,1phc2sys0-21swapper/321:45:333
171407599151,6cyclictest0-21swapper/200:10:012
1714075991513,1cyclictest0-21swapper/223:52:362
1714075991513,1cyclictest0-21swapper/223:30:572
1714075991513,1cyclictest0-21swapper/223:25:022
1714075991513,1cyclictest0-21swapper/223:05:442
1714075991513,1cyclictest0-21swapper/223:00:262
1714075991513,1cyclictest0-21swapper/222:30:012
1714075991513,1cyclictest0-21swapper/220:37:422
1714075991513,1cyclictest0-21swapper/219:59:482
1714075991513,1cyclictest0-21swapper/219:53:272
1714075991513,1cyclictest0-21swapper/219:20:012
1714075991512,1cyclictest0-21swapper/223:42:162
1714075991512,1cyclictest0-21swapper/221:44:212
1714075991512,1cyclictest0-21swapper/220:40:512
1714075991512,1cyclictest0-21swapper/220:23:042
1714075991512,1cyclictest0-21swapper/220:05:012
1714075991512,1cyclictest0-21swapper/219:25:012
1714075991512,1cyclictest0-21swapper/200:25:532
1714075991511,2cyclictest0-21swapper/221:52:332
1714075991511,2cyclictest0-21swapper/221:11:312
1714075991511,1cyclictest0-21swapper/220:05:562
1714075991510,2cyclictest0-21swapper/219:10:452
171407499159,5cyclictest2019511-21head22:55:491
171407499159,1cyclictest501rcuop/222:50:321
171407499159,1cyclictest501rcuop/222:31:091
171407499159,1cyclictest501rcuop/221:41:431
171407499159,1cyclictest501rcuop/221:34:371
171407499158,3cyclictest2142874-21ssh00:15:551
171407499158,1cyclictest501rcuop/221:58:461
171407499158,1cyclictest191rcu_preempt21:36:011
171407499153,4cyclictest252575-1atop00:00:001
171407499152,2cyclictest191rcu_preempt20:55:451
1714074991513,1cyclictest1714071-21cyclictest20:10:571
1714074991512,2cyclictest1851152-21cpuspeed_turbos21:00:471
1714074991512,2cyclictest1726644-21kthreadcore19:16:231
1714074991512,2cyclictest1309-21mta-sts-daemon19:24:141
1714074991512,2cyclictest1053-21snmpd20:55:001
1714074991511,3cyclictest2115007-21kworker/u16:3+nfsiod00:21:061
1714074991511,3cyclictest1917352-21kthreadcore21:45:501
1714074991511,3cyclictest1832788-21aten_repower_fr20:45:461
1714074991511,3cyclictest1772213-21gltestperf19:55:501
1714074991511,3cyclictest1306-21mta-sts-daemon19:41:371
171407499150,6cyclictest341rcuc/122:40:511
171407399159,5cyclictest2130074-21systemd-run00:10:030
171407399157,4cyclictest0-21swapper/022:27:560
171407399156,4cyclictest2152021-21awk00:25:010
171407399155,5cyclictest0-21swapper/023:40:430
1714073991512,2cyclictest759-1atopacctd19:20:490
1714073991512,2cyclictest2070478-21systemd-run23:30:010
1714073991512,2cyclictest2005439-21kthreadcore22:45:520
1714073991512,2cyclictest1814293-21aten_repower_en20:30:450
1714073991512,2cyclictest1813953-21cut20:30:020
1714073991512,2cyclictest1801997-21systemd20:20:030
1714073991512,2cyclictest1783357-21/usr/sbin/munin20:05:010
1714073991512,2cyclictest0-21swapper/021:10:010
1714073991512,2cyclictest0-21swapper/019:15:020
1714073991511,3cyclictest2012757-21kthreadcore22:50:500
1714073991511,3cyclictest1722908-21head19:16:170
1714073991511,2cyclictest0-21swapper/021:40:020
1714073991510,4cyclictest1766156-21head19:50:480
3240591140,2phc2sys0-21swapper/323:28:173
3240591140,2phc2sys0-21swapper/323:15:283
3240591140,2phc2sys0-21swapper/323:06:213
3240591140,2phc2sys0-21swapper/322:23:143
3240591140,2phc2sys0-21swapper/322:12:283
1714075991412,1cyclictest0-21swapper/222:10:492
1714075991412,1cyclictest0-21swapper/222:05:022
1714075991412,1cyclictest0-21swapper/221:05:462
1714075991411,1cyclictest0-21swapper/221:45:242
1714075991411,1cyclictest0-21swapper/221:35:522
1714075991411,1cyclictest0-21swapper/221:25:422
1714075991411,1cyclictest0-21swapper/220:50:462
1714075991411,1cyclictest0-21swapper/219:10:012
171407499149,1cyclictest1677690-21kworker/1:0+events_freezable19:50:501
171407499142,4cyclictest0-21swapper/120:35:461
1714074991411,2cyclictest1937863-21gltestperf22:00:481
1714074991411,2cyclictest1784487-21fschecks_count20:05:471
1714074991410,1cyclictest69250irq/121-eno123:45:451
171407399144,8cyclictest1757858-21tr19:40:530
171407399143,6cyclictest0-21swapper/019:57:170
1714073991411,2cyclictest2120545-21processes00:00:550
1714073991411,2cyclictest1845918-21irqrtprio20:55:510
1714073991411,2cyclictest1825000-21missed_timers20:35:530
1714073991411,2cyclictest1744999-21kthreadcore19:30:530
1714073991411,2cyclictest1306-21mta-sts-daemon22:01:550
1714073991411,2cyclictest1306-21mta-sts-daemon00:17:300
171407399140,6cyclictest2101062-21expr23:50:460
171407399140,10cyclictest0-21swapper/021:15:500
3240591137,2phc2sys0-21swapper/321:54:313
3240591130,2phc2sys0-21swapper/323:41:433
3240591130,2phc2sys0-21swapper/322:40:573
3240591130,2phc2sys0-21swapper/322:07:353
3240591130,1phc2sys0-21swapper/319:14:503
1714075991311,1cyclictest0-21swapper/222:45:272
1714075991310,1cyclictest0-21swapper/220:15:462
171407499139,3cyclictest1812025-21kthreadcore20:25:531
1714073991311,1cyclictest1750069-21kthreadcore19:35:530
1714073991310,2cyclictest1802731-21fschecks_time20:20:480
3240591121,5phc2sys0-21swapper/319:45:443
3240591121,2phc2sys0-21swapper/300:15:483
3240591121,2phc2sys0-21swapper/300:10:473
3240591120,2phc2sys0-21swapper/323:34:123
3240591120,2phc2sys0-21swapper/321:58:453
3240591120,2phc2sys0-21swapper/321:27:423
3240591120,2phc2sys0-21swapper/320:25:593
3240591120,2phc2sys0-21swapper/319:33:293
3240591111,4phc2sys0-21swapper/321:15:453
3240591111,2phc2sys0-21swapper/323:48:263
3240591111,2phc2sys0-21swapper/322:30:553
3240591111,2phc2sys0-21swapper/320:20:583
3240591110,2phc2sys0-21swapper/321:20:493
3240591110,2phc2sys0-21swapper/320:50:513
3240591110,2phc2sys0-21swapper/319:50:443
3240591110,2phc2sys0-21swapper/300:33:003
3240591110,1phc2sys0-21swapper/323:51:273
3240591110,1phc2sys0-21swapper/321:39:363
3240591110,1phc2sys0-21swapper/320:40:293
3240591110,1phc2sys0-21swapper/319:15:263
171407399119,1cyclictest0-21swapper/019:10:010
3240591102,2phc2sys0-21swapper/320:55:523
3240591101,2phc2sys0-21swapper/321:13:033
3240591101,2phc2sys0-21swapper/320:20:023
3240591100,4phc2sys0-21swapper/323:00:443
3240591100,2phc2sys0-21swapper/323:20:213
3240591100,2phc2sys0-21swapper/322:55:123
3240591100,2phc2sys0-21swapper/322:45:503
3240591100,2phc2sys0-21swapper/322:38:573
3240591100,2phc2sys0-21swapper/321:41:133
3240591100,2phc2sys0-21swapper/319:25:443
3240591100,2phc2sys0-21swapper/300:36:533
3240591100,2phc2sys0-21swapper/300:25:583
3240591100,1phc2sys0-21swapper/321:07:223
324059191,2phc2sys0-21swapper/323:55:043
324059190,4phc2sys0-21swapper/320:00:453
324059190,2phc2sys0-21swapper/320:30:513
324059190,2phc2sys0-21swapper/320:05:553
324059190,2phc2sys0-21swapper/319:55:533
324059190,2phc2sys0-21swapper/319:35:543
324059190,2phc2sys0-21swapper/319:24:563
324059181,1phc2sys0-21swapper/319:40:473
324059180,3phc2sys0-21swapper/320:45:453
324059180,2phc2sys0-21swapper/320:10:483
324059180,2phc2sys0-21swapper/319:05:523
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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