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2026-06-11 - 08:57
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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 Jun 11, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3224621080,1sleep10-21swapper/122:05:271
412413221030,2sleep30-21swapper/320:50:343
1767442980,1sleep00-21swapper/023:41:490
3994307992417,6cyclictest133610-21/usr/sbin/munin23:15:010
3994308992315,3cyclictest0-21swapper/100:05:011
3994308992213,4cyclictest0-21swapper/100:00:011
3994307992219,2cyclictest4106353-21apt-key20:40:010
3994307992212,6cyclictest0-21swapper/023:35:000
3994307992212,6cyclictest0-21swapper/023:35:000
3994307992212,5cyclictest70420-21kthreadcore22:30:280
3994309992118,1cyclictest0-21swapper/200:05:012
3994307992114,4cyclictest1247-21mta-sts-daemon21:25:030
3994307992111,5cyclictest90092-21gltestperf22:45:240
387412210,2sleep038742-21tr22:10:270
3994309992018,1cyclictest0-21swapper/222:40:022
3994309992018,1cyclictest0-21swapper/221:30:012
3994308992018,1cyclictest0-21swapper/120:35:321
3994308992017,2cyclictest4021121-21apt-config19:30:011
3994308992017,2cyclictest111384-21run-parts23:00:011
3994308992011,3cyclictest0-21swapper/122:20:021
3994307992017,2cyclictest3994305-21cyclictest21:30:300
3994307992012,7cyclictest0-21swapper/021:40:300
399430799200,7cyclictest186614-21irqcore23:50:260
492398190,3rtkit-daemon1246-21mta-sts-daemon23:28:171
3994308991916,2cyclictest4001214-21sendmail_mailtr19:15:021
3994308991916,2cyclictest244274-21grep00:30:011
3994308991911,3cyclictest0-21swapper/123:50:021
399430799198,6cyclictest0-21swapper/022:20:190
3994307991916,2cyclictest4164947-21grep21:25:020
3994307991916,2cyclictest4002960-21aten_repower_cu19:15:220
3153791191,2phc2sys0-21swapper/323:27:143
3153791190,2phc2sys0-21swapper/322:31:523
3994309991815,1cyclictest0-21swapper/200:15:252
399430899189,4cyclictest0-21swapper/100:35:021
3994308991815,2cyclictest698-21in:imuxsock20:30:011
3994308991815,2cyclictest101865-21mailstats22:50:341
399430799188,5cyclictest0-21swapper/000:15:010
399430799187,6cyclictest0-21swapper/023:00:220
399430799187,3cyclictest675-21mta-sts-daemon23:06:560
399430799183,5cyclictest5171-21tr21:45:300
3994307991815,2cyclictest67027-21sh22:30:010
3994307991814,2cyclictest0-21swapper/023:40:000
3994307991812,5cyclictest1247-21mta-sts-daemon22:05:560
399430799180,3cyclictest250187-21ssh00:30:500
399430999171,7cyclictest0-21swapper/219:40:222
3994309991714,1cyclictest0-21swapper/223:30:242
3994309991714,1cyclictest0-21swapper/223:30:242
3994309991714,1cyclictest0-21swapper/222:55:012
3994309991714,1cyclictest0-21swapper/221:15:012
3994309991714,1cyclictest0-21swapper/200:10:282
3994308991714,2cyclictest230149-21tr00:20:211
3994308991714,2cyclictest0-21swapper/121:40:021
3994308991713,3cyclictest765-1atopacctd21:40:351
3994308991713,3cyclictest4005752-21kthreadcore19:15:291
3994308991710,3cyclictest4157838-21/usr/sbin/munin21:20:291
3994308991710,3cyclictest4076213-21aten2.4-expect20:15:221
3994308991710,3cyclictest0-21swapper/123:40:021
399430799177,3cyclictest501rcuop/200:00:200
399430799176,4cyclictest4124328-21sshd20:51:460
399430799174,2cyclictest191rcu_preempt19:25:260
3994307991715,1cyclictest4088436-21aten2.4-expect20:25:220
399430799171,4cyclictest1-21systemd21:10:020
3994307991714,2cyclictest4180628-21fschecks_time21:35:240
3994307991714,2cyclictest24207-21tr22:00:270
3994307991714,2cyclictest199968-21sh00:00:010
3994307991714,2cyclictest148368-21/usr/sbin/munin23:25:020
3994307991714,2cyclictest103823-21apt-config22:55:010
3153791171,4phc2sys0-21swapper/321:40:303
3153791170,2phc2sys0-21swapper/322:02:463
3994309991614,1cyclictest0-21swapper/219:15:022
3994309991613,1cyclictest0-21swapper/223:40:012
3994309991613,1cyclictest0-21swapper/223:25:022
3994309991613,1cyclictest0-21swapper/221:35:342
3994309991613,1cyclictest0-21swapper/220:40:012
3994309991613,1cyclictest0-21swapper/219:20:282
3994309991612,2cyclictest0-21swapper/220:05:012
399430899168,6cyclictest274-21systemd-journal23:15:011
399430899168,3cyclictest0-21swapper/100:38:271
3994308991614,1cyclictest0-21swapper/121:35:011
3994308991613,2cyclictest698-21in:imuxsock19:51:091
3994308991613,2cyclictest68411-21irqcore22:30:261
3994308991613,2cyclictest658-21avahi-daemon21:00:021
3994308991613,2cyclictest222775-21tr00:15:231
3994308991613,2cyclictest212933-21xargs00:05:341
3994308991613,2cyclictest190381-21head23:50:301
3994308991613,2cyclictest124270-21mailstats23:05:311
3994308991611,2cyclictest1242-21mta-sts-daemon23:42:521
3994308991610,2cyclictest67250irq/126-eno122:00:271
399430799169,6cyclictest0-21swapper/023:48:500
399430799169,6cyclictest0-21swapper/023:16:460
399430799167,4cyclictest1242-21mta-sts-daemon22:56:580
399430799166,6cyclictest4075880-21kworker/u16:1-events_power_efficient20:45:270
3994307991614,1cyclictest4033248-21wc19:40:010
3994307991613,2cyclictest88971-21latency_hist22:45:020
3994307991613,2cyclictest8210-21aten_repower_po21:50:220
3994307991613,2cyclictest4151505-21sort21:15:270
3994307991613,2cyclictest235261-21ssh00:20:340
3994307991613,2cyclictest153662-21proc_pri23:25:330
399430799161,2cyclictest4001150-21munin-run19:15:020
3994307991611,4cyclictest75307-21fschecks_time22:35:240
3994307991611,2cyclictest1246-21mta-sts-daemon22:16:220
399430799160,4cyclictest16379-21ps21:55:260
3153791161,4phc2sys0-21swapper/323:00:213
3153791160,2phc2sys0-21swapper/320:13:043
3994309991513,1cyclictest0-21swapper/221:10:022
3994309991512,1cyclictest0-21swapper/223:45:002
3994309991512,1cyclictest0-21swapper/223:20:012
3994309991512,1cyclictest0-21swapper/223:08:242
3994309991512,1cyclictest0-21swapper/222:25:342
3994309991512,1cyclictest0-21swapper/222:15:332
3994309991512,1cyclictest0-21swapper/222:05:212
3994309991512,1cyclictest0-21swapper/220:55:012
3994309991511,2cyclictest0-21swapper/223:55:012
3994309991511,2cyclictest0-21swapper/222:45:332
399430899157,3cyclictest0-21swapper/122:45:281
3994308991512,2cyclictest8841-21gltestperf21:50:251
3994308991512,2cyclictest62812-21kthreadcore22:25:281
3994308991512,2cyclictest4023334-21kthreadcore19:30:271
3994308991512,2cyclictest4010381-21kthreadcore19:20:271
3994308991512,2cyclictest1246-21mta-sts-daemon22:20:351
3994308991512,2cyclictest1-21systemd21:11:461
3994308991511,3cyclictest4138367-21kthreadcore21:05:291
3994308991511,3cyclictest4136003-21mailstats21:00:331
3994308991511,3cyclictest4099133-21pmu-power20:30:301
3994308991511,3cyclictest4099133-21pmu-power20:30:301
3994308991511,3cyclictest4054588-21kthreadcore19:55:301
3994308991511,3cyclictest1237-21mta-sts-daemon23:22:481
3994308991510,2cyclictest1246-21mta-sts-daemon22:40:481
3994308991510,2cyclictest1242-21mta-sts-daemon22:35:171
399430899150,13cyclictest274-21systemd-journal00:15:011
399430799158,5cyclictest274-21systemd-journal19:51:090
399430799156,8cyclictest1242-21mta-sts-daemon20:00:220
399430799155,5cyclictest191rcu_preempt21:10:290
3994307991512,2cyclictest4142744-21diskmemload00:25:270
3994307991512,2cyclictest4124913-21/usr/sbin/munin20:55:320
3994307991512,2cyclictest4088086-21systemd20:25:020
3994307991512,2cyclictest4068265-21kthreadcore20:05:280
3994307991512,2cyclictest208010-21cpuspeed_turbos00:05:220
3994307991511,1cyclictest191rcu_preempt00:15:390
399430799150,1cyclictest0-21swapper/000:35:240
3153791151,4phc2sys0-21swapper/320:05:203
3153791150,2phc2sys0-21swapper/323:10:183
492398140,9rtkit-daemon4077175-21irqrtprio20:15:270
399430999142,8cyclictest0-21swapper/219:40:012
399430999141,6cyclictest40214232sleep219:30:202
3994309991412,1cyclictest0-21swapper/223:45:232
3994309991412,1cyclictest0-21swapper/222:55:232
3994309991412,1cyclictest0-21swapper/222:15:012
3994309991412,1cyclictest0-21swapper/221:01:012
3994309991412,1cyclictest0-21swapper/219:55:232
3994309991412,1cyclictest0-21swapper/219:30:022
3994309991411,1cyclictest0-21swapper/223:55:272
3994309991411,1cyclictest0-21swapper/223:28:342
3994309991411,1cyclictest0-21swapper/221:43:452
3994309991411,1cyclictest0-21swapper/221:30:212
3994309991411,1cyclictest0-21swapper/221:16:372
3994309991411,1cyclictest0-21swapper/220:20:242
3994309991411,1cyclictest0-21swapper/200:37:412
3994309991411,1cyclictest0-21swapper/200:05:272
399430899149,4cyclictest3994305-21cyclictest19:48:461
399430899149,2cyclictest1242-21mta-sts-daemon21:15:261
399430899141,8cyclictest4088044-21latency_hist20:25:021
3994308991411,2cyclictest658-21avahi-daemon20:50:021
3994308991411,2cyclictest4107648-21grep20:40:271
3994308991411,2cyclictest40665-21kthreadcore22:10:301
3994308991411,2cyclictest4058564-21grep20:00:251
3994308991410,3cyclictest4166335-21irqcore21:25:261
3994308991410,3cyclictest1795-21irqcore21:45:271
3994308991410,3cyclictest112383-21sh23:00:231
399430799145,5cyclictest0-21swapper/019:20:320
3994307991411,2cyclictest660-21dbus-daemon19:10:010
3994307991411,2cyclictest4130975-21acpi21:00:200
3994307991411,2cyclictest4097738-21kthreadcore20:30:270
3994307991411,2cyclictest4097738-21kthreadcore20:30:270
3994307991411,2cyclictest4054588-21kthreadcore19:55:300
3994307991411,2cyclictest1-21systemd19:46:080
3994307991410,3cyclictest4107734-21irqcore20:40:270
3994307991410,3cyclictest4022751-21kthreadcore19:30:270
3153791140,5phc2sys0-21swapper/300:02:383
3153791140,3phc2sys0-21swapper/321:34:163
3153791140,3phc2sys0-21swapper/300:08:523
3153791140,2phc2sys0-21swapper/322:45:263
3153791140,2phc2sys0-21swapper/321:27:443
3153791140,2phc2sys0-21swapper/319:37:103
399430999139,2cyclictest0-21swapper/219:50:312
3994309991311,1cyclictest0-21swapper/222:44:262
3994309991311,1cyclictest0-21swapper/220:50:012
3994309991311,1cyclictest0-21swapper/220:15:012
3994309991311,1cyclictest0-21swapper/219:15:272
3994309991311,1cyclictest0-21swapper/200:30:232
3994309991311,1cyclictest0-21swapper/200:25:262
3994309991310,1cyclictest0-21swapper/223:00:282
3994309991310,1cyclictest0-21swapper/222:30:272
3994309991310,1cyclictest0-21swapper/222:21:102
3994309991310,1cyclictest0-21swapper/221:50:272
3994309991310,1cyclictest0-21swapper/221:22:492
3994309991310,1cyclictest0-21swapper/220:55:282
3994309991310,1cyclictest0-21swapper/220:30:282
3994309991310,1cyclictest0-21swapper/220:30:282
3994309991310,1cyclictest0-21swapper/220:25:262
3994309991310,1cyclictest0-21swapper/219:45:292
3994309991310,1cyclictest0-21swapper/200:24:532
399430999130,9cyclictest0-21swapper/220:05:292
399430899137,5cyclictest1237-21mta-sts-daemon23:32:391
399430899137,5cyclictest1237-21mta-sts-daemon23:32:391
3994308991310,2cyclictest4071215-21irqrtprio20:10:281
3994308991310,2cyclictest4039423-21systemd-run19:45:011
3994308991310,2cyclictest1242-21mta-sts-daemon23:19:181
399430899130,5cyclictest4124621-21cat20:55:001
399430899130,4cyclictest0-21swapper/121:55:201
399430799133,5cyclictest4038382-21tail19:40:320
3994307991310,2cyclictest4072552-21kthreadcore20:10:290
3153791131,3phc2sys0-21swapper/319:05:213
3153791131,3phc2sys0-21swapper/300:10:203
3153791130,6phc2sys0-21swapper/321:10:213
3153791130,3phc2sys0-21swapper/321:58:023
3153791130,2phc2sys0-21swapper/322:50:543
3153791130,2phc2sys0-21swapper/322:06:553
3153791130,1phc2sys0-21swapper/320:32:283
3153791130,1phc2sys0-21swapper/320:32:283
399430999129,1cyclictest0-21swapper/223:10:242
3994309991210,1cyclictest0-21swapper/222:00:292
3994309991210,1cyclictest0-21swapper/221:55:272
3994309991210,1cyclictest0-21swapper/221:45:032
3994309991210,1cyclictest0-21swapper/220:40:222
3994309991210,1cyclictest0-21swapper/219:10:022
399430899128,2cyclictest0-21swapper/119:10:021
399430899125,5cyclictest4028482-21cut19:35:261
399430899124,3cyclictest0-21swapper/120:05:211
3153791123,2phc2sys0-21swapper/322:58:253
3153791121,3phc2sys0-21swapper/322:22:503
3153791120,2phc2sys0-21swapper/323:50:233
3153791120,2phc2sys0-21swapper/322:44:383
3153791120,2phc2sys0-21swapper/322:36:173
3153791120,2phc2sys0-21swapper/322:29:513
3153791120,2phc2sys0-21swapper/319:43:243
3153791120,2phc2sys0-21swapper/300:30:203
3153791120,2phc2sys0-21swapper/300:21:263
3153791120,1phc2sys0-21swapper/323:47:423
3153791120,1phc2sys0-21swapper/321:45:473
1777172120,5sleep30-21swapper/323:44:503
461672110,2sleep30-21swapper/322:15:273
399430999112,3cyclictest0-21swapper/220:15:212
3153791114,2phc2sys0-21swapper/321:19:533
3153791111,3phc2sys0-21swapper/319:50:013
3153791111,2phc2sys0-21swapper/320:15:333
3153791110,2phc2sys0-21swapper/323:19:093
3153791110,2phc2sys0-21swapper/321:50:363
3153791110,2phc2sys0-21swapper/321:05:223
3153791110,2phc2sys0-21swapper/320:40:023
3153791110,2phc2sys0-21swapper/300:37:373
3153791110,1phc2sys0-21swapper/323:56:243
3153791110,1phc2sys0-21swapper/320:26:393
3153791103,3phc2sys0-21swapper/323:23:333
3153791103,2phc2sys0-21swapper/319:57:383
3153791102,2phc2sys0-21swapper/321:35:333
3153791101,2phc2sys0-21swapper/319:30:263
3153791101,2phc2sys0-21swapper/300:15:213
3153791100,2phc2sys0-21swapper/323:09:473
3153791100,2phc2sys0-21swapper/322:10:163
3153791100,2phc2sys0-21swapper/319:50:253
3153791100,2phc2sys0-21swapper/319:20:203
3153791100,2phc2sys0-21swapper/300:27:193
3153791100,1phc2sys0-21swapper/320:47:553
3153791100,1phc2sys0-21swapper/320:05:003
315379190,2phc2sys0-21swapper/323:35:283
315379190,2phc2sys0-21swapper/323:30:233
315379190,2phc2sys0-21swapper/323:30:233
315379190,2phc2sys0-21swapper/321:20:053
315379190,2phc2sys0-21swapper/321:00:253
315379190,2phc2sys0-21swapper/321:00:013
315379190,2phc2sys0-21swapper/320:40:343
315379190,2phc2sys0-21swapper/320:20:223
315379190,2phc2sys0-21swapper/319:25:213
315379190,2phc2sys0-21swapper/319:15:033
315379190,2phc2sys0-21swapper/319:14:513
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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