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2026-07-18 - 08:50
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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 Sat Jul 18, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22704221050,1sleep00-21swapper/000:36:420
13231421040,2sleep0101114-21kworker/0:1+events23:36:100
40563382740,2sleep30-21swapper/320:26:163
2064032730,1sleep0206401-21ssh00:25:240
41150702440,1sleep20-21swapper/221:11:192
2045242340,2sleep30-21swapper/300:21:263
3960796992919,2cyclictest69250irq/121-eno121:30:031
3960797992421,1cyclictest0-21swapper/221:45:012
3960796992414,3cyclictest3960794-21cyclictest21:55:031
3960796992413,2cyclictest1306-21mta-sts-daemon23:28:161
3960795992416,7cyclictest662-21avahi-daemon00:35:020
3960795992320,2cyclictest664-21dbus-daemon20:30:030
3960797992219,1cyclictest0-21swapper/222:05:012
3960796992217,3cyclictest4127857-21grep21:21:151
3960796992217,3cyclictest0-21swapper/123:25:021
3960795992216,2cyclictest69250irq/121-eno122:10:010
3960797992118,1cyclictest0-21swapper/221:30:012
3960796992118,2cyclictest4191457-21latency_hist22:05:021
3960796992118,2cyclictest190982-21systemd00:15:011
3960796992117,2cyclictest69250irq/121-eno100:16:121
3960796992116,3cyclictest4150553-21kthreadcore21:36:161
3960796992113,2cyclictest69250irq/121-eno100:26:121
3960795992118,2cyclictest176275-21grep00:05:020
3960795992118,2cyclictest168320-21cron00:00:000
3960795992111,5cyclictest0-21swapper/021:35:020
3960796992017,2cyclictest3960794-21cyclictest23:15:021
3960796992017,2cyclictest0-21swapper/100:05:011
396079599209,7cyclictest4192012-21kworker/u16:0+xprtiod22:26:000
3960795992016,2cyclictest0-21swapper/000:20:010
3960795992015,3cyclictest0-21swapper/023:20:030
3960795992014,5cyclictest4135320-21kthreadcore21:26:170
41189912190,1sleep10-21swapper/121:16:151
3960797991917,1cyclictest0-21swapper/222:30:012
3960797991916,1cyclictest0-21swapper/221:21:142
3960797991916,1cyclictest0-21swapper/219:55:012
396079699195,5cyclictest4161979-21cat21:45:021
3960796991916,2cyclictest64308-21grep22:50:021
3960796991916,2cyclictest228196-21sh00:40:011
3960796991916,2cyclictest0-21swapper/122:35:011
396079599198,7cyclictest109125-21sshd23:20:260
396079599196,8cyclictest148044-21kthreadcore23:46:130
3960795991916,2cyclictest688-21in:imuxsock22:25:000
3960795991916,2cyclictest0-21swapper/000:25:010
3960795991915,3cyclictest3960794-21cyclictest19:35:020
3960795991915,2cyclictest0-21swapper/021:25:030
3960795991914,3cyclictest0-21swapper/020:40:020
3960795991911,7cyclictest0-21swapper/021:15:010
3960795991910,5cyclictest0-21swapper/023:51:170
396079599190,4cyclictest4049945-21kthreadcore20:21:150
3960797991815,1cyclictest0-21swapper/223:28:032
3960797991815,1cyclictest0-21swapper/200:35:012
3960797991815,1cyclictest0-21swapper/200:05:012
3960796991815,2cyclictest86304-21diskmemload23:05:011
3960796991815,2cyclictest5165-21systemd22:10:011
3960796991815,2cyclictest4030094-21systemd-run20:05:011
3960796991815,2cyclictest1306-21mta-sts-daemon22:45:021
396079699181,4cyclictest4147164-21latency_hist21:35:021
3960796991812,2cyclictest69250irq/121-eno121:10:151
396079599189,5cyclictest4155145-21apt-get21:41:090
396079599187,7cyclictest187337-21cut00:11:160
396079599186,8cyclictest4031637-21irqrtprio20:06:140
3960795991815,2cyclictest86373-21systemd23:05:010
3960795991815,2cyclictest684-21systemd-logind23:35:010
3960795991815,2cyclictest0-21swapper/019:25:010
3960795991813,3cyclictest0-21swapper/020:20:020
3240591180,2phc2sys0-21swapper/320:10:023
3960797991715,1cyclictest0-21swapper/221:40:012
3960797991714,1cyclictest0-21swapper/222:39:152
3960797991714,1cyclictest0-21swapper/219:41:102
3960796991714,2cyclictest759-1atopacctd20:51:221
3960796991714,2cyclictest3993662-21cron19:35:011
3960796991714,2cyclictest3967001-21proc_pri19:15:011
3960796991714,2cyclictest203993-21wc00:21:191
3960796991714,2cyclictest147690-21ps23:46:121
3960796991714,2cyclictest0-21swapper/122:40:011
3960796991714,2cyclictest0-21swapper/120:30:021
3960796991711,5cyclictest107036-21cat23:16:211
3960796991711,2cyclictest601rcuop/320:20:011
396079599179,4cyclictest4024567-21aten2.4-expect20:01:080
396079599176,3cyclictest3987598-21idleruntime-cro19:30:010
396079599175,6cyclictest4000220-21aten2.4-expect19:41:080
3960795991714,2cyclictest662-21avahi-daemon19:20:010
3960795991714,2cyclictest142774-21kthreadcore23:41:150
3960795991714,2cyclictest0-21swapper/022:20:020
3960795991713,3cyclictest0-21swapper/021:00:020
3960795991712,3cyclictest664-21dbus-daemon22:15:020
3960795991710,6cyclictest4079671-21aten2.4-expect20:46:100
396079599170,5cyclictest78418-21ssh22:58:380
396079599170,5cyclictest3961472-21cstates19:11:100
3240591170,7phc2sys0-21swapper/319:10:013
3960797991614,1cyclictest0-21swapper/221:16:142
3960797991614,1cyclictest0-21swapper/220:40:012
3960797991614,1cyclictest0-21swapper/200:15:022
3960797991613,1cyclictest0-21swapper/223:31:092
3960797991613,1cyclictest0-21swapper/223:06:162
3960797991613,1cyclictest0-21swapper/222:55:012
3960797991613,1cyclictest0-21swapper/221:00:002
3960796991614,1cyclictest3987611-21cat19:30:011
3960796991613,2cyclictest87560-21fschecks_time23:06:111
3960796991613,2cyclictest690-21rs:main1
3960796991613,2cyclictest672-21polkitd21:05:011
3960796991613,2cyclictest664-21dbus-daemon19:45:021
3960796991613,2cyclictest6414-21grep22:11:121
3960796991613,2cyclictest3960794-21cyclictest21:06:231
3960796991613,2cyclictest25870-21tail22:21:211
3960796991613,2cyclictest218961-21pmu-power00:31:181
3960796991613,2cyclictest166637-21mailstats23:56:191
396079699160,3cyclictest159954-21ssh23:52:241
396079599169,6cyclictest91683-21missed_timers23:06:170
396079599168,3cyclictest1309-21mta-sts-daemon23:12:560
396079599167,5cyclictest0-21swapper/022:41:170
396079599165,7cyclictest4173504-21kthreadcore21:51:180
396079599164,7cyclictest11574-21rtkit-daemon19:59:550
3960795991613,2cyclictest118364-21kthreadcore23:26:160
3960795991613,2cyclictest0-21swapper/022:40:010
3960795991612,2cyclictest0-21swapper/019:55:030
3960795991612,1cyclictest69250irq/121-eno122:31:090
3960795991611,4cyclictest4066869-21systemd-run20:35:010
3960795991611,2cyclictest1309-21mta-sts-daemon00:05:080
3960795991610,5cyclictest4098447-21head21:01:120
3960795991610,4cyclictest0-21swapper/022:51:220
396079599160,4cyclictest4168874-21ssh21:49:080
3960797991514,0cyclictest0-21swapper/222:35:022
3960797991513,1cyclictest0-21swapper/223:56:112
3960797991513,1cyclictest0-21swapper/223:11:212
3960797991513,1cyclictest0-21swapper/223:00:022
3960797991513,1cyclictest0-21swapper/219:25:012
3960797991512,1cyclictest0-21swapper/223:20:012
3960797991512,1cyclictest0-21swapper/222:16:072
3960797991512,1cyclictest0-21swapper/222:06:072
3960797991512,1cyclictest0-21swapper/219:26:092
396079799150,8cyclictest4011593-21chrt19:46:322
396079699157,3cyclictest69250irq/121-eno122:26:121
396079699157,3cyclictest69250irq/121-eno119:51:161
3960796991512,2cyclictest4072928-21apt-key20:40:011
3960796991512,2cyclictest4034058-21kthreadcore20:06:161
3960796991512,2cyclictest3960794-21cyclictest20:41:121
3960796991512,2cyclictest179620-21tr00:06:161
3960796991512,2cyclictest1306-21mta-sts-daemon22:50:091
3960796991512,2cyclictest126422-21kthreadcore23:31:151
3960796991511,3cyclictest4165098-21kthreadcore21:46:161
3960796991511,3cyclictest4095922-21kthreadcore20:56:181
3960796991511,1cyclictest1306-21mta-sts-daemon22:56:111
396079599158,6cyclictest4151215-21kthreadcore21:36:150
396079599158,6cyclictest0-21swapper/022:46:200
396079599156,5cyclictest4132233-21kworker/u16:3+nfsiod21:57:090
396079599155,6cyclictest4073501-21aten2.4-expect20:41:090
3960795991513,1cyclictest4090934-21unixbench_singl20:51:240
3960795991512,2cyclictest4037814-21kthreadcore20:11:140
3960795991512,2cyclictest4007533-21kthreadcore19:46:150
3960795991512,2cyclictest3995381-21kthreadcore19:36:140
3960795991512,2cyclictest1306-21mta-sts-daemon21:16:120
3960795991511,3cyclictest0-21swapper/019:10:020
3240591150,2phc2sys0-21swapper/322:40:423
3240591150,1phc2sys0-21swapper/321:27:253
1157598150,2rtkit-daemon1307-21mta-sts-daemon19:35:381
3960797991412,1cyclictest0-21swapper/223:36:342
3960797991412,1cyclictest0-21swapper/222:48:492
3960797991412,1cyclictest0-21swapper/220:21:162
3960797991412,1cyclictest0-21swapper/200:20:012
3960797991411,1cyclictest0-21swapper/221:50:012
3960797991411,1cyclictest0-21swapper/220:55:012
3960797991411,1cyclictest0-21swapper/219:36:112
3960797991411,1cyclictest0-21swapper/200:35:262
3960797991411,1cyclictest0-21swapper/200:26:592
3960797991411,1cyclictest0-21swapper/200:23:342
3960797991411,1cyclictest0-21swapper/200:06:092
396079799140,9cyclictest0-21swapper/221:58:062
396079699146,3cyclictest69250irq/121-eno119:16:141
3960796991411,2cyclictest4174674-21missed_timers21:51:191
3960796991411,2cyclictest4036490-21acpi20:11:061
3960796991411,2cyclictest3981396-21apt-key19:25:011
3960796991411,2cyclictest3960908-21systemd-run19:10:021
3960796991411,2cyclictest142364-21kthreadcore23:41:151
3960796991411,2cyclictest136705-21missed_timers23:36:171
396079599147,6cyclictest0-21swapper/022:01:090
396079599143,6cyclictest4103864-21aten2.4-expect21:06:090
3240591141,1phc2sys0-21swapper/321:17:263
3240591140,1phc2sys0-21swapper/322:11:463
3240591140,1phc2sys0-21swapper/300:00:183
41610372130,3sleep30-21swapper/321:42:393
396079799131,6cyclictest0-21swapper/222:21:072
3960797991311,1cyclictest0-21swapper/223:46:152
3960797991311,1cyclictest0-21swapper/223:01:142
3960797991311,1cyclictest0-21swapper/222:40:132
3960797991311,1cyclictest0-21swapper/221:55:022
3960797991311,1cyclictest0-21swapper/220:26:092
3960797991311,1cyclictest0-21swapper/219:56:112
3960797991310,1cyclictest0-21swapper/223:40:082
3960797991310,1cyclictest0-21swapper/221:01:102
3960797991310,1cyclictest0-21swapper/220:41:152
3960797991310,1cyclictest0-21swapper/220:11:112
3960797991310,1cyclictest0-21swapper/219:31:132
396079699139,3cyclictest4007424-21irqrtprio19:46:151
3960796991310,2cyclictest4062049-21irqcore20:31:131
3960796991310,2cyclictest4053013-21kthreadcore20:21:171
3960796991310,2cyclictest4021736-21kthreadcore19:56:171
3240591130,2phc2sys0-21swapper/323:52:333
3240591130,2phc2sys0-21swapper/323:14:563
3240591130,2phc2sys0-21swapper/320:47:053
3240591130,1phc2sys0-21swapper/323:19:213
3240591130,1phc2sys0-21swapper/322:06:293
3240591130,1phc2sys0-21swapper/321:30:433
3240591130,1phc2sys0-21swapper/319:20:093
3240591130,1phc2sys0-21swapper/300:32:443
396079799121,6cyclictest0-21swapper/223:51:092
3960797991210,1cyclictest0-21swapper/223:21:112
3960797991210,1cyclictest0-21swapper/222:11:212
3960797991210,1cyclictest0-21swapper/221:31:152
3960797991210,1cyclictest0-21swapper/221:06:102
3960797991210,1cyclictest0-21swapper/220:46:092
3960797991210,1cyclictest0-21swapper/220:16:172
3960797991210,1cyclictest0-21swapper/220:06:152
3960797991210,1cyclictest0-21swapper/219:16:172
3960797991210,1cyclictest0-21swapper/219:11:152
396079699129,2cyclictest1307-21mta-sts-daemon20:46:131
3240591124,2phc2sys0-21swapper/320:41:163
3240591120,3phc2sys0-21swapper/300:16:193
3240591120,2phc2sys0-21swapper/323:34:223
396079799119,1cyclictest0-21swapper/220:31:132
396079799119,1cyclictest0-21swapper/220:01:132
3240591110,2phc2sys0-21swapper/322:21:203
3240591110,2phc2sys0-21swapper/321:51:103
3240591110,1phc2sys0-21swapper/322:52:183
3240591110,1phc2sys0-21swapper/322:35:263
3240591110,1phc2sys0-21swapper/321:55:313
3240591110,1phc2sys0-21swapper/321:06:003
3240591110,1phc2sys0-21swapper/320:19:323
3240591110,1phc2sys0-21swapper/319:33:273
3240591105,1phc2sys0-21swapper/323:42:393
3240591102,2phc2sys0-21swapper/320:54:553
3240591102,1phc2sys0-21swapper/321:21:193
3240591101,3phc2sys0-21swapper/300:40:023
3240591101,1phc2sys0-21swapper/319:11:283
3240591100,2phc2sys0-21swapper/322:50:013
3240591100,2phc2sys0-21swapper/322:26:173
3240591100,2phc2sys0-21swapper/322:01:203
3240591100,2phc2sys0-21swapper/320:21:083
3240591100,2phc2sys0-21swapper/319:16:173
3240591100,1phc2sys0-21swapper/323:59:523
3240591100,1phc2sys0-21swapper/320:33:463
3240591100,1phc2sys0-21swapper/320:10:143
3240591100,1phc2sys0-21swapper/319:35:323
39607979997,1cyclictest0-21swapper/219:10:012
324059194,2phc2sys0-21swapper/320:56:153
324059191,2phc2sys0-21swapper/323:48:413
324059191,2phc2sys0-21swapper/323:06:203
324059191,2phc2sys0-21swapper/322:19:073
324059191,2phc2sys0-21swapper/300:11:103
324059191,1phc2sys0-21swapper/321:10:293
324059190,2phc2sys0-21swapper/323:01:073
324059190,2phc2sys0-21swapper/322:58:113
324059190,2phc2sys0-21swapper/321:46:093
324059190,2phc2sys0-21swapper/321:01:113
324059190,2phc2sys0-21swapper/320:39:553
324059190,2phc2sys0-21swapper/300:30:023
324059190,1phc2sys0-21swapper/323:23:523
324059190,1phc2sys0-21swapper/322:30:293
324059190,1phc2sys0-21swapper/300:05:053
324059181,2phc2sys0-21swapper/319:43:093
324059181,1phc2sys0-21swapper/319:51:153
324059180,2phc2sys0-21swapper/323:36:103
324059180,2phc2sys0-21swapper/321:35:233
324059180,2phc2sys0-21swapper/320:01:173
324059180,2phc2sys0-21swapper/319:56:123
324059180,2phc2sys0-21swapper/319:46:103
324059180,2phc2sys0-21swapper/319:25:343
324059180,1phc2sys0-21swapper/323:25:083
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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