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2026-07-16 - 07:17
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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 highest latencies:
System rackeslot2.osadl.org (updated Thu Jul 16, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24566121910,1sleep30-21swapper/320:00:003
40551521010,1sleep1191rcu_preempt22:00:011
4883172360,4sleep00-21swapper/022:56:150
182481992522,2cyclictest188640-21missed_timers19:15:020
182481992320,2cyclictest664-21dbus-daemon21:50:010
182481992320,2cyclictest664-21dbus-daemon21:30:020
3240591220,1phc2sys0-21swapper/323:56:153
182482992219,2cyclictest664-21dbus-daemon21:25:011
182481992219,2cyclictest561129-21idleruntime-cro23:45:010
182481992213,8cyclictest1-21systemd21:10:020
182481992213,8cyclictest1-21systemd21:10:020
182481992213,5cyclictest460779-21kthreadcore22:36:220
182481992213,5cyclictest1307-21mta-sts-daemon21:34:270
182483992119,0cyclictest0-21swapper/200:05:022
182482992118,2cyclictest664-21dbus-daemon23:00:011
182482992118,2cyclictest0-21swapper/122:50:011
182481992112,5cyclictest499959-21missed_timers23:01:210
182482992018,1cyclictest331609-21/usr/sbin/munin21:10:031
182482992018,1cyclictest331609-21/usr/sbin/munin21:10:031
182482992017,2cyclictest442444-21cron22:25:011
182482992017,2cyclictest346180-21cron21:20:001
182482992012,3cyclictest384305-21cstates21:46:151
182481992016,2cyclictest539135-21sh23:30:020
182481992012,5cyclictest393708-21kthreadcore21:51:210
18248199200,16cyclictest0-21swapper/022:06:140
3064092190,6sleep00-21swapper/020:46:260
182483991916,1cyclictest0-21swapper/220:10:012
182482991916,2cyclictest559819-21grep23:41:271
182482991916,2cyclictest1-21systemd23:55:021
182482991916,2cyclictest0-21swapper/100:35:021
182482991913,2cyclictest69250irq/121-eno119:31:161
18248199199,6cyclictest578241-21kthreadcore23:56:170
18248199199,6cyclictest0-21swapper/022:30:020
182481991916,2cyclictest664-21dbus-daemon19:30:010
182481991916,2cyclictest627757-21turbostat00:30:000
182481991916,2cyclictest0-21swapper/023:25:010
182481991914,1cyclictest1157598rtkit-daemon22:11:300
182483991816,1cyclictest0-21swapper/200:40:012
182483991815,1cyclictest0-21swapper/221:36:222
182483991815,1cyclictest0-21swapper/221:10:022
182483991815,1cyclictest0-21swapper/221:10:022
182483991815,1cyclictest0-21swapper/220:25:012
182482991815,2cyclictest684-21systemd-logind20:00:011
182482991815,2cyclictest664-21dbus-daemon23:25:021
182482991815,2cyclictest664-21dbus-daemon22:10:011
182482991815,2cyclictest626150-21mailstats00:26:251
182482991815,2cyclictest596593-21python300:06:271
182482991815,2cyclictest537553-21grep23:26:271
182482991815,2cyclictest443746-21sh22:26:161
182482991815,2cyclictest412917-21systemd22:05:011
182482991815,2cyclictest294918-21apt-config20:40:011
182482991814,3cyclictest664-21dbus-daemon00:00:031
182482991813,1cyclictest69250irq/121-eno123:01:221
182482991812,2cyclictest379163-21kthreadcore21:41:221
18248199189,6cyclictest592581-21irqrtprio00:06:200
18248199189,5cyclictest0-21swapper/021:56:210
18248199188,5cyclictest0-21swapper/021:11:160
18248199188,5cyclictest0-21swapper/021:11:160
182481991815,2cyclictest552319-21grep23:36:280
182481991815,2cyclictest196874-21cat19:20:010
182481991814,3cyclictest197253-21/usr/sbin/munin19:21:150
3511732170,2sleep20-21swapper/221:21:222
3240591171,1phc2sys0-21swapper/322:25:063
3240591170,1phc2sys0-21swapper/323:39:243
182483991715,1cyclictest0-21swapper/200:16:192
182483991714,1cyclictest0-21swapper/222:40:012
182483991714,1cyclictest0-21swapper/220:30:012
182483991714,1cyclictest0-21swapper/200:25:012
18248299178,4cyclictest0-21swapper/100:05:011
182482991714,2cyclictest664-21dbus-daemon23:50:021
182482991714,2cyclictest551892-21pmu-power23:36:241
182482991714,2cyclictest0-21swapper/119:15:021
182482991713,3cyclictest1-21systemd21:35:011
182482991710,2cyclictest0-21swapper/123:16:461
18248199176,6cyclictest0-21swapper/023:15:460
182481991714,2cyclictest0-21swapper/000:40:010
182481991711,4cyclictest1-21systemd22:35:030
18248199170,8cyclictest270180-21awk20:20:010
3240591160,2phc2sys0-21swapper/323:49:013
3240591160,2phc2sys0-21swapper/321:58:403
182483991614,1cyclictest0-21swapper/223:31:172
182483991614,1cyclictest0-21swapper/222:45:022
182483991613,1cyclictest0-21swapper/223:01:152
182483991613,1cyclictest0-21swapper/220:40:012
182483991613,1cyclictest0-21swapper/219:15:012
182483991613,1cyclictest0-21swapper/219:10:012
182483991613,1cyclictest0-21swapper/200:31:142
18248299166,2cyclictest1307-21mta-sts-daemon00:16:181
182482991613,2cyclictest664-21dbus-daemon21:55:021
182482991613,2cyclictest480833-21cstates22:51:141
182482991613,2cyclictest428994-21cut22:16:161
182482991613,2cyclictest421350-21cstates22:11:161
182482991613,2cyclictest0-21swapper/119:30:031
18248199166,6cyclictest0-21swapper/022:01:220
18248199164,2cyclictest540898-21kernelversion23:31:200
182481991613,2cyclictest759-1atopacctd20:15:020
182481991613,2cyclictest294884-21latency_hist20:40:010
182481991613,2cyclictest227694-21systemd-run19:45:020
182481991612,3cyclictest376136-21systemd-run21:40:020
182481991612,2cyclictest0-21swapper/022:20:020
3240591150,2phc2sys0-21swapper/322:42:523
3240591150,2phc2sys0-21swapper/300:22:043
3240591150,1phc2sys0-21swapper/322:34:073
3240591150,1phc2sys0-21swapper/300:05:523
182483991513,1cyclictest0-21swapper/223:50:012
182483991513,1cyclictest0-21swapper/223:40:002
182483991513,1cyclictest0-21swapper/223:30:022
182483991513,1cyclictest0-21swapper/223:15:022
182483991513,1cyclictest0-21swapper/222:50:032
182483991513,1cyclictest0-21swapper/222:20:022
182483991513,1cyclictest0-21swapper/220:31:162
182483991512,1cyclictest0-21swapper/223:00:012
182483991512,1cyclictest0-21swapper/222:21:122
182483991512,1cyclictest0-21swapper/221:56:302
182483991512,1cyclictest0-21swapper/220:01:222
18248299159,5cyclictest1307-21mta-sts-daemon20:56:211
18248299158,3cyclictest457922-21/usr/sbin/munin22:36:181
18248299151,9cyclictest664-21dbus-daemon20:05:011
182482991512,2cyclictest616848-21kthreadcore00:21:211
182482991512,2cyclictest541818-21kthreadcore23:31:211
182482991512,2cyclictest466061-21tr22:41:171
182482991512,2cyclictest332730-21fschecks_count21:11:171
182482991512,2cyclictest332730-21fschecks_count21:11:171
182482991512,2cyclictest324439-21pmu-power21:01:221
182482991512,2cyclictest282529-21latency_hist20:30:021
182482991512,2cyclictest259119-21gltestperf20:11:151
182482991512,2cyclictest238675-21phc2sys-jitter19:51:241
182482991511,3cyclictest17761-21kworker/u16:1+nfsiod21:25:501
18248199158,1cyclictest0-21swapper/019:46:200
18248199157,2cyclictest0-21swapper/023:06:200
18248199156,4cyclictest0-21swapper/020:10:010
18248199155,6cyclictest0-21swapper/022:20:320
18248199155,5cyclictest603461-21kthreadcore00:11:240
18248199155,5cyclictest0-21swapper/023:12:460
18248199155,5cyclictest0-21swapper/022:41:130
18248199154,4cyclictest377929-21kthreadcore21:41:210
182481991512,2cyclictest664-21dbus-daemon20:00:010
182481991512,2cyclictest182479-21cyclictest19:55:000
182481991512,2cyclictest1306-21mta-sts-daemon00:33:560
182481991512,2cyclictest11574-21rtkit-daemon21:15:260
3240591141,1phc2sys0-21swapper/323:41:163
3240591140,1phc2sys0-21swapper/300:38:363
182483991412,1cyclictest0-21swapper/222:26:122
182483991412,1cyclictest0-21swapper/222:15:012
182483991412,1cyclictest0-21swapper/221:46:212
182483991412,1cyclictest0-21swapper/221:35:012
182483991412,1cyclictest0-21swapper/221:19:482
182483991412,1cyclictest0-21swapper/221:00:032
182483991412,1cyclictest0-21swapper/220:46:182
182483991412,1cyclictest0-21swapper/220:11:152
182483991412,1cyclictest0-21swapper/219:46:212
182483991411,1cyclictest0-21swapper/223:16:222
182483991411,1cyclictest0-21swapper/222:34:582
182483991411,1cyclictest0-21swapper/222:04:012
182483991411,1cyclictest0-21swapper/219:36:242
182483991411,1cyclictest0-21swapper/219:31:142
182483991411,1cyclictest0-21swapper/219:29:522
182483991411,1cyclictest0-21swapper/200:26:212
182483991410,1cyclictest0-21swapper/220:16:162
18248299147,5cyclictest664-21dbus-daemon19:16:231
18248299141,9cyclictest307186-21unin-run20:50:011
182482991412,1cyclictest284341-21kthreadcore20:31:191
182482991412,1cyclictest202976-21latency_hist19:25:011
182482991411,2cyclictest637316-21kthreadcore00:36:201
182482991411,2cyclictest515092-21mailstats23:11:251
182482991411,2cyclictest450629-21aten_repower_cu22:31:131
182482991411,2cyclictest275690-21processes20:21:241
182482991411,2cyclictest182479-21cyclictest21:36:151
182482991411,2cyclictest1300-21mta-sts-daemon23:09:161
18248199145,4cyclictest0-21swapper/020:01:210
18248199143,6cyclictest0-21swapper/022:49:230
182481991412,1cyclictest1306-21mta-sts-daemon23:54:010
182481991411,2cyclictest588237-21kthreadcore00:01:210
182481991411,2cyclictest481058-21fschecks_count22:51:160
182481991411,2cyclictest296635-21kthreadcore20:41:200
182481991411,2cyclictest283693-21gltestperf20:31:160
182481991411,2cyclictest281666-21phc2sys-jitter20:26:230
182481991411,2cyclictest275530-21needreboot20:21:220
182481991411,2cyclictest209705-21aten_repower_en19:31:140
182481991411,2cyclictest1309-21mta-sts-daemon21:01:180
182481991411,2cyclictest1-21systemd20:57:030
182481991411,2cyclictest1-21systemd20:51:260
182481991411,2cyclictest0-21swapper/000:16:150
3240591132,3phc2sys0-21swapper/320:46:143
3240591130,4phc2sys0-21swapper/320:26:123
3240591130,1phc2sys0-21swapper/321:15:563
182483991311,1cyclictest0-21swapper/223:51:192
182483991311,1cyclictest0-21swapper/222:54:382
182483991311,1cyclictest0-21swapper/221:51:272
182483991311,1cyclictest0-21swapper/221:30:012
182483991311,1cyclictest0-21swapper/219:56:212
182483991311,1cyclictest0-21swapper/219:51:202
182483991310,1cyclictest0-21swapper/223:21:132
182483991310,1cyclictest0-21swapper/222:06:202
182483991310,1cyclictest0-21swapper/221:41:212
182483991310,1cyclictest0-21swapper/221:15:012
182483991310,1cyclictest0-21swapper/221:15:012
182483991310,1cyclictest0-21swapper/220:41:132
182483991310,1cyclictest0-21swapper/219:21:212
182483991310,1cyclictest0-21swapper/200:06:222
18248299139,3cyclictest69250irq/121-eno120:16:461
18248299139,3cyclictest215838-21aten_repower_vo19:36:151
18248299138,4cyclictest1300-21mta-sts-daemon20:42:021
18248299138,4cyclictest1300-21mta-sts-daemon20:05:411
18248299138,1cyclictest1157598rtkit-daemon20:53:241
18248299137,5cyclictest1309-21mta-sts-daemon19:41:191
182482991310,2cyclictest599795-21irqcore00:11:201
18248199135,2cyclictest561849-21apt-get23:46:120
182481991310,2cyclictest615408-21kthreadcore00:21:200
182481991310,2cyclictest350666-21kthreadcore21:21:220
182481991310,2cyclictest216800-21cut19:36:200
3240591122,2phc2sys0-21swapper/319:41:153
3240591121,2phc2sys0-21swapper/300:17:123
3240591120,2phc2sys0-21swapper/323:54:153
3240591120,2phc2sys0-21swapper/323:26:133
3240591120,1phc2sys0-21swapper/321:26:173
18248399129,1cyclictest0-21swapper/220:51:222
18248399121,4cyclictest0-21swapper/219:16:112
182483991210,1cyclictest0-21swapper/223:55:592
182483991210,1cyclictest0-21swapper/223:42:022
182483991210,1cyclictest0-21swapper/223:10:022
182483991210,1cyclictest0-21swapper/221:01:182
18248299129,2cyclictest684-21systemd-logind19:10:021
18248299129,2cyclictest229149-21kthreadcore19:46:221
18248199129,2cyclictest182649-21sh19:10:030
3240591111,2phc2sys0-21swapper/319:36:143
3240591111,2phc2sys0-21swapper/300:31:113
3240591110,2phc2sys0-21swapper/322:38:293
3240591110,2phc2sys0-21swapper/319:48:203
3240591110,1phc2sys0-21swapper/321:50:193
3240591110,1phc2sys0-21swapper/321:23:573
3240591110,1phc2sys0-21swapper/321:11:513
3240591110,1phc2sys0-21swapper/321:11:513
3240591110,1phc2sys0-21swapper/320:24:423
3240591110,1phc2sys0-21swapper/320:19:213
3240591110,1phc2sys0-21swapper/319:12:503
18248399119,1cyclictest0-21swapper/219:41:212
18248399119,1cyclictest0-21swapper/200:11:232
3240591106,2phc2sys0-21swapper/323:21:143
3240591100,3phc2sys0-21swapper/321:46:023
3240591100,2phc2sys0-21swapper/323:08:343
3240591100,2phc2sys0-21swapper/322:59:163
3240591100,2phc2sys0-21swapper/322:11:593
3240591100,2phc2sys0-21swapper/321:36:243
3240591100,2phc2sys0-21swapper/319:51:073
3240591100,2phc2sys0-21swapper/319:21:233
3240591100,2phc2sys0-21swapper/300:01:123
3240591100,1phc2sys0-21swapper/323:14:043
3240591100,1phc2sys0-21swapper/322:20:413
3240591100,1phc2sys0-21swapper/322:01:593
3240591100,1phc2sys0-21swapper/321:30:203
3240591100,1phc2sys0-21swapper/320:43:303
3240591100,1phc2sys0-21swapper/320:36:363
3240591100,1phc2sys0-21swapper/320:14:283
3240591100,1phc2sys0-21swapper/320:07:313
3240591100,1phc2sys0-21swapper/319:17:503
3240591100,1phc2sys0-21swapper/319:07:173
3240591100,1phc2sys0-21swapper/300:10:053
324059194,2phc2sys0-21swapper/322:50:483
324059193,2phc2sys0-21swapper/323:15:543
324059193,2phc2sys0-21swapper/322:07:413
324059192,2phc2sys0-21swapper/323:00:083
324059191,3phc2sys0-21swapper/319:30:023
324059191,2phc2sys0-21swapper/300:25:103
324059190,3phc2sys0-21swapper/320:55:233
324059190,2phc2sys0-21swapper/321:44:063
324059190,2phc2sys0-21swapper/321:06:303
324059190,2phc2sys0-21swapper/321:06:303
324059190,2phc2sys0-21swapper/320:51:273
324059190,1phc2sys0-21swapper/323:31:223
324059181,3phc2sys0-21swapper/320:00:253
324059181,1phc2sys0-21swapper/322:16:043
324059181,1phc2sys0-21swapper/319:31:253
324059180,2phc2sys0-21swapper/322:45:103
324059180,2phc2sys0-21swapper/321:01:253
324059180,1phc2sys0-21swapper/320:31:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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