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2026-06-06 - 03:31
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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 100 highest latencies:
System rackcslot4.osadl.org (updated Sat Jun 06, 2026 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32418222317276,27sleep00-21swapper/019:07:540
32418082316275,27sleep10-21swapper/119:07:441
338698521530,4sleep10-21swapper/123:16:201
33035982820,3sleep03303602-21latency_hist21:25:000
32912252610,4sleep03291228-21pmu-power21:05:220
33550532600,4sleep10-21swapper/122:34:181
324216599563,9cyclictest3439308-40unattended-upgr00:29:480
179699550,14rtkit-daemon3427137-21ssh00:12:581
324216599533,9cyclictest3251097-21apt-get19:30:130
324216599492,9cyclictest3318675-21apt-get21:45:120
324216599485,9cyclictest3272007-21apt-get20:20:110
179699450,3rtkit-daemon0-21swapper/123:38:271
179699440,3rtkit-daemon0-21swapper/100:23:311
324216599433,11cyclictest3242699-21apt-get19:10:110
324216599422,13cyclictest3428283-21apt-get00:15:140
3242165994212,9cyclictest3431375-1kworker/u9:000:30:130
324216999412,14cyclictest3247177-21/usr/sbin/munin19:20:251
324216599402,9cyclictest3431856-21apt-get00:20:120
324216599402,10cyclictest3403611-21apt-get23:40:120
179699400,3rtkit-daemon0-21swapper/123:48:511
179699400,3rtkit-daemon0-21swapper/123:41:441
179699400,3rtkit-daemon0-21swapper/123:10:051
3242169993916,8cyclictest3413104-21ssh23:52:201
324216599399,6cyclictest3281610-21python320:45:010
324216599399,5cyclictest3410857-21apt-get23:50:120
324216599392,9cyclictest3333810-21apt-get22:05:140
324216599392,13cyclictest3296381-21apt-get21:15:140
324216599392,11cyclictest3322500-21apt-get21:50:140
3242165993911,8cyclictest3294108-1kworker/u9:222:20:130
3242165993911,8cyclictest3294108-1kworker/u9:222:20:120
3242169993817,4cyclictest34238072sleep100:07:011
324216599384,8cyclictest3245223-21apt-get19:15:130
324216599383,9cyclictest3257475-21apt-get19:45:250
324216599371,8cyclictest3263761-21apt-get20:00:130
3242169993611,4cyclictest3292169-21diskmemload00:04:431
324216599362,11cyclictest3385234-21apt-get23:15:120
324216599361,12cyclictest3443378-21apt-get00:35:120
324216999352,9cyclictest3439308-40unattended-upgr00:29:431
324216999352,6cyclictest3388907-21apt-get23:20:141
324216999352,3cyclictest3320571-21seq21:46:291
324216999350,9cyclictest3358073-21ssh22:37:551
324216599352,9cyclictest3265707-21apt-get20:05:130
324216599351,14cyclictest3249146-21apt-get19:25:130
324216999343,8cyclictest3377648-21apt-get23:05:121
324216999342,8cyclictest3296381-21apt-get21:15:121
324216999342,8cyclictest3285913-21python320:55:011
324216999341,9cyclictest3396168-21apt-get23:30:121
324216999341,9cyclictest3330138-21apt-get22:00:121
3242169993410,6cyclictest3301290-21systemctl21:20:251
324216999340,18cyclictest3282506-21fschecks_time20:45:181
324216599343,6cyclictest3326044-21apt-get21:55:130
324216599343,6cyclictest3326044-21apt-get21:55:120
3242169993328,3cyclictest66950irq/132-enp2s000:38:101
324216999332,13cyclictest3257447-40apt-check19:45:251
3242169993310,7cyclictest3345915-21threads22:20:241
3242169993310,7cyclictest3345915-21threads22:20:231
324216999323,9cyclictest3249146-21apt-get19:25:141
324216999323,10cyclictest3414587-21apt-get23:55:141
324216999322,5cyclictest3307616-21apt-get21:30:131
3242169993218,8cyclictest3362785-21apt-get22:45:111
3242169993211,5cyclictest3292169-21diskmemload21:50:551
324216999320,16cyclictest3333783-21ssh22:05:091
324216999320,16cyclictest3315645-21memory21:40:181
324216999320,10cyclictest3430496-21ssh00:17:271
324216999312,10cyclictest3373838-21apt-get23:00:101
324216999311,8cyclictest3393973-21users23:25:251
3242169993111,5cyclictest3292169-21diskmemload22:42:171
324216999310,16cyclictest3275736-21/usr/sbin/munin20:30:011
179699310,4rtkit-daemon1795-21rtkit-daemon19:13:491
324216999302,12cyclictest3337348-21apt-get22:10:131
324216999301,10cyclictest3263743-21/usr/sbin/munin20:00:271
324216999292,8cyclictest3329501-21python322:00:021
324216999292,8cyclictest3329501-21python322:00:011
324216999290,8cyclictest3442459-21ssh00:33:281
324216999283,7cyclictest3286493-21apt-get20:55:141
324216999282,7cyclictest3303856-21apt-get21:25:131
324216999276,7cyclictest26-21ksoftirqd/122:56:541
324216999275,3cyclictest3292169-21diskmemload22:15:141
324216999262,7cyclictest3292432-21apt-get21:10:121
324216599269,10cyclictest3359255-21apt-get22:40:140
3242165992611,10cyclictest3341028-21apt-get22:15:150
324216999256,17cyclictest0-21swapper/119:50:011
324216999251,5cyclictest3281608-21python320:45:011
324216599259,3cyclictest33126912chrt21:35:240
324216599253,15cyclictest3315006-21apt-get21:40:110
324216599253,14cyclictest3288465-21apt-get21:00:130
324216599250,9cyclictest3366290-21cut22:50:010
324216599250,4cyclictest3384597-21python323:15:000
324216999243,5cyclictest3292169-21diskmemload22:52:201
324216999240,6cyclictest3263625-21wc20:00:011
324216599241,5cyclictest13-21ksoftirqd/023:22:280
324216599240,6cyclictest3403315-21cron23:40:000
179699240,4rtkit-daemon1795-21rtkit-daemon00:03:130
179699240,3rtkit-daemon0-21swapper/019:40:060
179699240,14rtkit-daemon3277858-21apt-get20:35:140
3242169992317,3cyclictest3256798-21python319:45:011
324216999230,22cyclictest0-21swapper/120:35:261
324216599232,14cyclictest3270033-21apt-get20:15:130
324216599232,13cyclictest2-21kthreadd22:50:120
324216599230,4cyclictest3417989-40gzip00:00:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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