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2025-12-08 - 22:53
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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 rackcslot4.osadl.org (updated Mon Dec 08, 2025 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34876292263187,60sleep10-21swapper/107:08:331
34874652243202,27sleep00-21swapper/007:06:470
34878969918486,86cyclictest3675906-21cstates12:15:161
348789199173131,30cyclictest3675878-21ssh12:15:160
34878969915188,51cyclictest3679440-21expr12:20:181
3487896991404,123cyclictest3665535-21head12:00:211
34878919913648,76cyclictest3679712-21head12:20:210
34878919913628,83cyclictest3668629-21cstates12:05:180
34878969912845,71cyclictest3605694-21cat10:40:171
34878919912740,75cyclictest3605705-21ls10:40:160
3487896991263,107cyclictest3617374-21cut10:55:201
34878969912433,79cyclictest3669177-21cut12:05:241
125899560,4rtkit-daemon1257-21rtkit-daemon11:25:371
3487896995310,11cyclictest3551717-21python309:30:011
125899530,4rtkit-daemon1257-21rtkit-daemon11:33:140
125899520,4rtkit-daemon1257-21rtkit-daemon10:18:141
348789699516,13cyclictest3664611-21date12:00:001
348789699507,10cyclictest3500202-21munin-run07:40:001
348789699506,12cyclictest3683049-21gpg-connect-age12:25:041
125899500,3rtkit-daemon1257-21rtkit-daemon07:10:590
348789699499,12cyclictest3590463-21sed10:20:021
125899490,4rtkit-daemon1257-21rtkit-daemon08:36:391
125899490,3rtkit-daemon1257-21rtkit-daemon10:12:421
348789699485,12cyclictest3515892-21sh08:20:001
348789699485,11cyclictest3653570-21cat11:45:011
3487896994810,22cyclictest3646318-21apt-get11:35:141
348789699477,14cyclictest3690436-21unin-run12:35:001
348789699477,11cyclictest3657029-21perf11:50:001
348789699477,10cyclictest3492354-21unin-run07:20:011
348789699476,14cyclictest3601587-21cat10:35:001
348789699476,14cyclictest3563879-21cat09:45:001
3487896994710,13cyclictest3526359-21apt-get08:45:211
348789699467,13cyclictest3545642-21readlink09:20:251
348789699467,11cyclictest3535951-21diskmemload09:55:001
3487896994610,10cyclictest3572574-21mailstats09:55:241
35471242450,1sleep00-21swapper/009:22:560
348789699457,10cyclictest1-21systemd11:05:001
348789699456,11cyclictest3597802-21cat10:30:011
348789699456,11cyclictest3508107-21wc08:00:001
125899450,4rtkit-daemon1257-21rtkit-daemon08:13:251
348789699447,12cyclictest3602793-21grep10:35:251
348789699447,12cyclictest3535951-21diskmemload10:10:001
348789699446,12cyclictest3530192-21cat08:55:011
348789699446,10cyclictest3533214-21mailstats09:00:261
348789699445,10cyclictest3646136-21latency_hist11:35:001
348789699444,11cyclictest3540029-21latency_hist09:15:001
3487896994410,11cyclictest3553585-21grep09:30:261
348789699438,9cyclictest3489803-21unin-run07:15:001
348789699436,12cyclictest3638705-21systemctl11:25:011
348789699436,12cyclictest3627570-21cat11:10:001
348789699436,12cyclictest3578644-21munin-run10:05:011
348789699436,11cyclictest3519929-21date08:30:001
348789699435,11cyclictest3556319-21apt-config09:35:031
348789699435,11cyclictest3516036-21date08:20:011
348789699434,16cyclictest3631425-21latency_hist11:15:011
3487896994311,11cyclictest3543828-21python309:20:011
348789699429,12cyclictest3691515-21ntpq12:35:231
348789699426,22cyclictest3657292-21apt-get11:50:141
348789699426,10cyclictest3616447-21latency_hist10:55:001
3487896994211,11cyclictest3503392-21grep07:45:241
348789699418,15cyclictest3532062-21sendmail-msp09:00:001
348789699417,14cyclictest3609714-21/usr/sbin/munin10:45:221
348789699416,9cyclictest3567521-21unin-run09:50:011
348789699416,9cyclictest3567521-21unin-run09:50:011
348789699416,14cyclictest3634937-21rm11:19:451
348789699416,11cyclictest3505272-21plymouth07:50:241
348789699415,11cyclictest3520947-21grep08:30:251
348789699415,10cyclictest3672361-21cut12:10:161
348789699415,10cyclictest3494411-21cat07:25:011
348789699406,10cyclictest3510057-21latency_hist08:05:001
125899400,3rtkit-daemon1257-21rtkit-daemon09:15:420
348789699399,11cyclictest3525680-21python308:45:001
348789699386,11cyclictest3501523-21sed07:40:231
3487896993811,11cyclictest3496779-21grep07:30:171
125899370,3rtkit-daemon1257-21rtkit-daemon07:30:210
348789699366,14cyclictest3534510-21perl09:05:171
348789699366,10cyclictest3494772-21taskset07:25:181
3487896993619,10cyclictest3510195-21apt-get08:05:141
125899360,4rtkit-daemon1257-21rtkit-daemon10:57:540
125899360,4rtkit-daemon1257-21rtkit-daemon09:33:180
125899360,3rtkit-daemon0-21swapper/011:12:200
125899350,6rtkit-daemon3535951-21diskmemload11:46:000
125899350,3rtkit-daemon1257-21rtkit-daemon12:33:590
125899350,3rtkit-daemon1257-21rtkit-daemon11:00:190
125899340,4rtkit-daemon1257-21rtkit-daemon07:16:370
125899340,3rtkit-daemon0-21swapper/110:27:040
125899330,3rtkit-daemon1257-21rtkit-daemon11:08:150
125899330,3rtkit-daemon0-21swapper/111:24:070
125899320,4rtkit-daemon1257-21rtkit-daemon12:37:460
125899320,4rtkit-daemon0-21swapper/109:58:420
125899320,3rtkit-daemon1257-21rtkit-daemon07:36:590
125899320,3rtkit-daemon1257-21rtkit-daemon07:26:280
125899320,3rtkit-daemon0-21swapper/108:27:110
125899320,3rtkit-daemon0-21swapper/107:46:230
125899310,3rtkit-daemon0-21swapper/111:40:060
125899310,3rtkit-daemon0-21swapper/111:26:070
125899310,3rtkit-daemon0-21swapper/108:17:410
125899300,4rtkit-daemon1257-21rtkit-daemon12:01:450
125899300,3rtkit-daemon1257-21rtkit-daemon10:32:050
125899300,3rtkit-daemon0-21swapper/112:10:100
36861052290,5chrt3686090-21python312:29:130
3487891992926,2cyclictest63750irq/132-enp2s010:38:050
348789199290,8cyclictest13-21ksoftirqd/011:55:260
125899290,3rtkit-daemon1257-21rtkit-daemon07:40:010
125899290,3rtkit-daemon0-21swapper/109:53:410
125899290,3rtkit-daemon0-21swapper/108:35:030
125899270,3rtkit-daemon0-21swapper/111:37:070
125899260,21rtkit-daemon3487889-21cyclictest10:06:530
125899260,1rtkit-daemon1257-21rtkit-daemon10:51:530
348789199253,7cyclictest3575304-21apt-get10:00:160
348789199252,2cyclictest141rcu_preempt10:50:020
3487891992522,2cyclictest63750irq/132-enp2s009:38:520
348789199252,15cyclictest3530273-21apt-get08:55:130
348789199251,14cyclictest141rcu_preempt10:20:030
348789199250,2cyclictest141rcu_preempt08:45:010
125899250,3rtkit-daemon0-21swapper/107:51:380
125899240,19rtkit-daemon1257-21rtkit-daemon10:15:420
348789199236,2cyclictest141rcu_preempt09:30:020
348789199234,11cyclictest3506274-21apt-get07:55:140
3487891992311,6cyclictest3528325-21apt-get08:50:160
348789199230,7cyclictest161rcuc/008:10:150
125899230,4rtkit-daemon1257-21rtkit-daemon09:48:220
125899230,4rtkit-daemon1257-21rtkit-daemon09:48:210
348789199222,4cyclictest141rcu_preempt07:25:010
348789199222,14cyclictest3508243-21apt-get08:00:130
3487891992212,8cyclictest3560441-21apt-get09:40:150
348789199220,6cyclictest0-21swapper/011:51:310
348789199213,11cyclictest3510195-21apt-get08:05:140
348789199212,15cyclictest3526208-21appstreamcli08:45:020
348789199212,12cyclictest3516073-21apt-get08:20:140
3487891992116,4cyclictest13-21ksoftirqd/009:05:000
3487891992114,5cyclictest3520409-21gltestperf08:30:190
3487891992111,7cyclictest3534195-21apt-get09:05:130
348789199211,15cyclictest13-21ksoftirqd/010:10:140
348789199210,6cyclictest243-21jbd2/mmcblk0p2-11:15:210
125899210,3rtkit-daemon1257-21rtkit-daemon09:12:000
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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