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2026-05-05 - 06:21
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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 Tue May 05, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
414523221090,2sleep20-21swapper/223:10:352
3802196992522,2cyclictest3886771-21grep20:15:011
3802195992312,6cyclictest0-21swapper/000:30:010
380219599231,17cyclictest3917702-21ls20:35:330
41520892220,1sleep14152090-21grep23:15:311
3802195992219,2cyclictest0-21swapper/019:40:010
3802195992213,7cyclictest0-21swapper/021:20:010
3802195992213,5cyclictest4183010-21xargs23:35:340
3802196992118,2cyclictest82584-21systemd00:40:011
3802196992118,2cyclictest4184987-21grep23:40:021
3802196992117,3cyclictest4040016-21munin-run22:05:001
3802196992117,2cyclictest1326-21systemd-logind19:30:011
3802195992118,2cyclictest1326-21systemd-logind23:32:580
3802195992118,2cyclictest1290-21dbus-daemon20:20:010
3802195992110,6cyclictest0-21swapper/023:00:340
2649091210,1phc2sys0-21swapper/323:43:403
2649091210,1phc2sys0-21swapper/323:43:403
3802197992017,1cyclictest0-21swapper/219:15:002
380219699202,5cyclictest491rcuog/223:10:011
3802196992017,2cyclictest3943480-21sendmail21:00:001
3802196992017,2cyclictest3808971-21kthreadcore19:15:011
3802196992014,2cyclictest134050irq/121-eno122:25:351
3802196992013,3cyclictest48768-21kthreadcore00:15:311
380219599208,7cyclictest0-21swapper/023:40:290
380219599208,7cyclictest0-21swapper/023:40:280
380219599206,2cyclictest0-21swapper/000:15:280
3802196991916,2cyclictest4085749-21wc22:35:001
3802196991916,2cyclictest4009759-21/usr/sbin/munin21:45:011
3802196991916,2cyclictest1290-21dbus-daemon23:05:011
3802196991916,2cyclictest0-21swapper/121:55:001
3802196991914,2cyclictest3851703-21mta-sts-daemon22:49:011
380219599198,2cyclictest0-21swapper/023:50:010
380219599197,4cyclictest3851704-21mta-sts-daemon22:44:520
3802195991916,2cyclictest3824567-21rs:main0
3802195991915,3cyclictest4122151-21grep22:55:360
3802195991912,3cyclictest3955950-21diskmemload00:01:270
3802195991910,6cyclictest3851702-21mta-sts-daemon23:55:350
380219599190,4cyclictest3978789-21ssh21:24:550
2649191190,2ptp4l0-21swapper/319:10:293
3802197991816,1cyclictest0-21swapper/221:20:012
3802196991816,1cyclictest0-21swapper/121:35:001
3802196991815,2cyclictest4146836-21cron23:15:001
3802196991815,2cyclictest4123892-21systemd23:00:011
3802196991815,2cyclictest1326-21systemd-logind22:40:001
3802196991815,2cyclictest1326-21systemd-logind22:40:001
3802196991811,5cyclictest1-21systemd20:50:001
380219599188,5cyclictest0-21swapper/023:30:020
380219599188,5cyclictest0-21swapper/000:35:290
3802195991815,2cyclictest3949736-21dump-pmu-power21:05:000
3802195991815,2cyclictest0-21swapper/021:40:020
2649091181,2phc2sys0-21swapper/321:11:173
2649091180,2phc2sys0-21swapper/322:21:033
3802197991714,1cyclictest0-21swapper/200:01:272
380219699179,3cyclictest0-21swapper/123:25:021
380219699179,3cyclictest0-21swapper/120:50:311
3802196991715,1cyclictest0-21swapper/122:55:011
3802196991714,2cyclictest3994807-21aten2.4-expect21:35:221
3802196991714,2cyclictest37733-21gltestperf00:10:251
3802196991714,2cyclictest15105-21ps23:55:261
380219599178,5cyclictest3802193-21cyclictest22:34:590
380219599178,2cyclictest0-21swapper/000:23:410
380219599177,6cyclictest0-21swapper/021:55:000
380219599176,6cyclictest0-21swapper/022:25:240
380219599176,6cyclictest0-21swapper/022:20:030
380219599175,7cyclictest0-21swapper/023:05:240
3802195991714,2cyclictest4116246-21cut22:55:010
3802195991714,2cyclictest4045592-21processes22:05:330
3802195991714,2cyclictest4009608-21idleruntime-cro21:45:000
3802195991714,2cyclictest3992556-21xargs21:30:350
3802195991714,2cyclictest3912236-21cut20:35:010
3802195991714,2cyclictest3808514-21/usr/sbin/munin19:15:000
3802195991714,2cyclictest30010-21sh00:05:280
3802195991713,3cyclictest3824565-21in:imuxsock21:10:000
3802195991710,6cyclictest0-21swapper/021:45:290
2649091171,4phc2sys0-21swapper/320:55:223
2649091170,5phc2sys0-21swapper/321:15:223
2649091170,2phc2sys0-21swapper/323:50:063
2649091170,1phc2sys0-21swapper/323:06:533
3802197991613,1cyclictest0-21swapper/223:07:162
380219699168,3cyclictest0-21swapper/122:10:011
380219699163,6cyclictest3851702-21mta-sts-daemon00:20:511
380219699161,8cyclictest1290-21dbus-daemon23:35:011
3802196991614,1cyclictest3986719-21latency_hist21:30:001
3802196991613,2cyclictest4099744-21runrttasks22:41:301
3802196991613,2cyclictest4063698-21cstates22:20:241
3802196991613,2cyclictest4025327-21aten2.4-expect21:55:231
3802196991613,2cyclictest3899345-21gpgconf20:25:011
3802196991613,2cyclictest3880722-21gmain23:29:551
3802196991613,2cyclictest3851702-21mta-sts-daemon21:05:011
3802196991613,2cyclictest3851702-21mta-sts-daemon20:45:011
3802196991613,2cyclictest1290-21dbus-daemon00:35:021
3802196991612,3cyclictest3964295-21cpuspeed_turbos21:15:231
380219599164,7cyclictest39950-21kthreadcore00:10:290
380219599161,9cyclictest3817204-21/usr/sbin/munin19:20:000
3802195991613,2cyclictest4033382-21fschecks_count22:00:260
3802195991613,2cyclictest4026415-21irqrtprio21:55:270
3802195991613,2cyclictest3835956-21systemd-run19:35:000
3802195991613,2cyclictest0-21swapper/020:25:020
3802195991613,2cyclictest0-21swapper/020:10:020
3802195991613,2cyclictest0-21swapper/019:45:010
3802195991612,3cyclictest3823957-21cpuspeed_turbos19:25:240
2649091160,2phc2sys0-21swapper/320:33:143
2649091160,2phc2sys0-21swapper/319:15:313
2649091160,1phc2sys0-21swapper/322:07:163
671582150,2sleep30-21swapper/300:30:003
383433398150,6rtkit-daemon3851704-21mta-sts-daemon20:03:541
3802197991512,1cyclictest0-21swapper/223:20:112
3802197991512,1cyclictest0-21swapper/223:00:272
3802197991512,1cyclictest0-21swapper/222:00:012
3802197991512,1cyclictest0-21swapper/200:10:012
3802196991512,2cyclictest6093-21dump-pmu-power23:50:001
3802196991512,2cyclictest4048211-21cpu22:10:231
3802196991512,2cyclictest3976059-21kthreadcore21:20:301
3802196991512,2cyclictest3961451-21sshd21:10:321
3802196991512,2cyclictest3847499-21needreboot19:40:301
3802196991512,2cyclictest3831096-21cut19:30:281
3802196991512,2cyclictest3827634-1atopacctd19:37:311
3802196991512,2cyclictest3802193-21cyclictest00:25:291
3802196991512,2cyclictest32381-21kthreadcore00:05:341
3802196991512,2cyclictest0-21swapper/121:50:001
3802196991512,2cyclictest0-21swapper/119:10:011
3802196991511,3cyclictest4162417-21kworker/u16:2+nfsiod00:00:191
3802196991511,3cyclictest3902779-21kthreadcore20:25:281
3802196991511,3cyclictest3879378-21unixbench-2d20:05:361
3802196991511,3cyclictest3851703-21mta-sts-daemon20:15:331
3802196991511,3cyclictest3809986-21kthreadcore19:15:021
3802196991510,4cyclictest3713555-21GUsbEventThread20:30:221
380219699150,4cyclictest3914511-21tr20:35:281
380219699150,10cyclictest501rcuop/219:45:271
380219599157,4cyclictest0-21swapper/023:15:220
380219599155,6cyclictest0-21swapper/020:50:240
380219599153,2cyclictest0-21swapper/023:11:450
3802195991512,2cyclictest72815-21mailstats00:30:340
3802195991512,2cyclictest4063613-21cpuspeed_turbos22:20:240
3802195991512,2cyclictest3982225-21kthreadcore21:25:290
3802195991512,2cyclictest3851705-21mta-sts-daemon22:45:210
3802195991512,2cyclictest1290-21dbus-daemon23:55:010
3802195991511,3cyclictest3922076-21kthreadcore20:40:290
3802195991511,3cyclictest3864254-21kthreadcore19:55:300
2649091150,2phc2sys0-21swapper/321:24:553
2649091150,1phc2sys0-21swapper/319:33:063
3802197991411,1cyclictest0-21swapper/223:36:322
3802197991411,1cyclictest0-21swapper/223:30:402
3802197991411,1cyclictest0-21swapper/223:26:222
3802197991411,1cyclictest0-21swapper/222:40:572
3802197991411,1cyclictest0-21swapper/222:35:292
3802197991411,1cyclictest0-21swapper/222:35:292
3802197991411,1cyclictest0-21swapper/222:11:202
3802197991411,1cyclictest0-21swapper/221:54:082
3802197991411,1cyclictest0-21swapper/221:27:572
3802197991411,1cyclictest0-21swapper/220:40:152
3802197991411,1cyclictest0-21swapper/219:52:422
3802197991411,1cyclictest0-21swapper/219:46:252
3802197991411,1cyclictest0-21swapper/219:24:312
3802197991411,1cyclictest0-21swapper/200:26:282
3802197991411,1cyclictest0-21swapper/200:19:082
3802197991410,2cyclictest0-21swapper/222:52:262
3802197991410,2cyclictest0-21swapper/221:05:172
380219799140,7cyclictest0-21swapper/219:30:222
3802196991411,2cyclictest7760-21irqrtprio23:50:271
3802196991411,2cyclictest4185894-21fschecks_count23:40:241
3802196991411,2cyclictest4185894-21fschecks_count23:40:241
3802196991411,2cyclictest3955488-21unixbench-2d21:05:381
3802196991411,2cyclictest3861336-21/usr/sbin/munin19:55:351
3802196991411,2cyclictest3851705-21mta-sts-daemon19:25:001
3802196991410,3cyclictest3855891-21idleruntime19:50:271
380219599148,2cyclictest3851703-21mta-sts-daemon22:11:200
380219599147,6cyclictest3940815-21tr20:55:290
380219599147,5cyclictest3929247-21tr20:45:300
380219599147,5cyclictest3903487-21tr20:25:290
380219599146,3cyclictest3886374-21latency_hist20:15:020
3802195991411,2cyclictest4162269-21wc23:25:020
3802195991411,2cyclictest4093267-21cron22:40:000
3802195991411,2cyclictest4093267-21cron22:40:000
3802195991411,2cyclictest3823435-21systemd-run19:25:000
2649091142,2phc2sys0-21swapper/322:53:253
2649091142,2phc2sys0-21swapper/320:45:283
2649091140,3phc2sys0-21swapper/323:47:273
2649091140,3phc2sys0-21swapper/322:29:013
2649091140,2phc2sys0-21swapper/323:02:463
2649091140,2phc2sys0-21swapper/322:39:393
2649091140,2phc2sys0-21swapper/322:39:393
2649091140,2phc2sys0-21swapper/321:33:013
2649091140,2phc2sys0-21swapper/320:41:043
2649091140,2phc2sys0-21swapper/300:30:433
2649091140,2phc2sys0-21swapper/300:23:123
2649091140,2phc2sys0-21swapper/300:09:553
2649091140,1phc2sys0-21swapper/322:03:343
380219799139,2cyclictest0-21swapper/222:04:322
380219799139,2cyclictest0-21swapper/219:44:352
380219799132,7cyclictest0-21swapper/223:15:222
380219799131,7cyclictest0-21swapper/222:30:012
380219799131,7cyclictest0-21swapper/221:45:212
380219799131,6cyclictest0-21swapper/221:40:222
3802197991311,1cyclictest0-21swapper/223:45:332
3802197991311,1cyclictest0-21swapper/222:45:132
3802197991311,1cyclictest0-21swapper/222:18:422
3802197991311,1cyclictest0-21swapper/219:55:312
3802197991310,2cyclictest0-21swapper/220:30:012
3802197991310,1cyclictest0-21swapper/223:43:292
3802197991310,1cyclictest0-21swapper/223:43:292
3802197991310,1cyclictest0-21swapper/222:05:182
3802197991310,1cyclictest0-21swapper/221:11:122
3802197991310,1cyclictest0-21swapper/220:57:272
3802197991310,1cyclictest0-21swapper/220:50:002
3802197991310,1cyclictest0-21swapper/220:30:122
3802197991310,1cyclictest0-21swapper/220:09:472
3802197991310,1cyclictest0-21swapper/219:37:592
3802197991310,1cyclictest0-21swapper/200:13:292
380219799130,6cyclictest0-21swapper/221:00:222
380219799130,10cyclictest0-21swapper/219:20:012
3802196991310,2cyclictest4058560-21kthreadcore22:15:281
380219599139,3cyclictest3880722-21gmain19:50:020
380219599131,7cyclictest3961492-21ssh21:10:320
380219599131,3cyclictest3854398-21users19:45:350
2649091131,2phc2sys0-21swapper/323:25:333
2649091130,4phc2sys0-21swapper/321:53:283
2649091130,2phc2sys0-21swapper/322:41:313
2649091130,2phc2sys0-21swapper/322:16:113
2649091130,2phc2sys0-21swapper/321:41:153
2649091130,2phc2sys0-21swapper/320:20:403
2649091130,2phc2sys0-21swapper/320:08:083
2649091130,1phc2sys0-21swapper/321:07:003
380219799129,1cyclictest0-21swapper/222:20:192
380219799129,1cyclictest0-21swapper/221:20:192
380219799129,1cyclictest0-21swapper/220:54:432
380219799129,1cyclictest0-21swapper/220:38:202
380219799129,1cyclictest0-21swapper/220:17:342
380219799129,1cyclictest0-21swapper/219:25:272
380219799125,4cyclictest0-21swapper/220:20:222
380219799124,5cyclictest0-21swapper/223:50:212
380219799121,4cyclictest38020142sleep219:10:002
3802197991210,1cyclictest0-21swapper/220:00:082
3802197991210,1cyclictest0-21swapper/200:23:272
380219799120,7cyclictest0-21swapper/222:55:222
2649091123,2phc2sys0-21swapper/322:57:383
2649091121,5phc2sys0-21swapper/319:05:233
2649091120,2phc2sys0-21swapper/321:35:543
2649091120,2phc2sys0-21swapper/321:01:553
2649091120,2phc2sys0-21swapper/320:37:113
2649091120,2phc2sys0-21swapper/320:27:303
2649091120,2phc2sys0-21swapper/319:57:373
2649091120,1phc2sys0-21swapper/300:38:153
380219799119,1cyclictest0-21swapper/223:56:592
380219799119,1cyclictest0-21swapper/221:36:422
380219799119,1cyclictest0-21swapper/200:35:542
380219799118,1cyclictest0-21swapper/222:30:182
380219799118,1cyclictest0-21swapper/221:31:352
380219799118,1cyclictest0-21swapper/220:10:372
380219799111,7cyclictest67427-21taskset00:30:032
2649091111,1phc2sys0-21swapper/319:25:283
2649091110,3phc2sys0-21swapper/322:10:213
2649091110,2phc2sys0-21swapper/323:36:483
2649091110,2phc2sys0-21swapper/321:50:013
2649091110,1phc2sys0-21swapper/321:57:043
2649091110,1phc2sys0-21swapper/320:04:003
380219599104,5cyclictest1290-21dbus-daemon19:10:010
2649091104,2phc2sys0-21swapper/320:10:283
2649091101,2phc2sys0-21swapper/321:27:323
2649091101,2phc2sys0-21swapper/319:50:013
2649091100,2phc2sys0-21swapper/323:59:403
2649091100,2phc2sys0-21swapper/323:32:143
2649091100,2phc2sys0-21swapper/323:21:373
2649091100,2phc2sys0-21swapper/323:13:463
2649091100,2phc2sys0-21swapper/322:46:283
2649091100,2phc2sys0-21swapper/300:00:123
264909192,3phc2sys0-21swapper/319:20:313
264909191,3phc2sys0-21swapper/319:35:293
264909191,2phc2sys0-21swapper/320:50:293
264909190,2phc2sys0-21swapper/323:15:113
264909190,2phc2sys0-21swapper/322:31:373
264909190,2phc2sys0-21swapper/320:15:313
264909190,2phc2sys0-21swapper/319:50:253
264909190,2phc2sys0-21swapper/319:45:003
264909190,2phc2sys0-21swapper/300:15:033
264909190,2phc2sys0-21swapper/300:10:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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