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2026-04-16 - 06:24
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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 Thu Apr 16, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33450032292250,28sleep00-21swapper/019:09:050
33450812278244,19sleep10-21swapper/119:09:551
334522499632,39cyclictest3457679-21apt-get22:40:101
334522499594,39cyclictest3461176-21apt-get22:45:121
334522499561,37cyclictest3419142-21apt-get21:45:101
179699560,4rtkit-daemon1795-21rtkit-daemon22:29:580
33700252550,3sleep13370024-21perf20:10:001
334522499551,5cyclictest3372159-21apt-get20:15:141
179699550,4rtkit-daemon1795-21rtkit-daemon23:06:490
179699550,4rtkit-daemon1795-21rtkit-daemon21:27:270
3345224995413,29cyclictest3379965-21/usr/sbin/munin20:35:221
3345224995410,29cyclictest3367947-21seq20:03:571
179699540,4rtkit-daemon1795-21rtkit-daemon22:59:100
179699540,4rtkit-daemon1795-21rtkit-daemon21:49:230
179699540,4rtkit-daemon1795-21rtkit-daemon21:18:430
334522499531,7cyclictest3374905-21ntp_states20:20:221
334522499531,5cyclictest3393740-21apt-get21:10:111
334522499522,5cyclictest3385855-21apt-get20:50:141
334522499522,5cyclictest3362757-21ntp_states19:50:211
179699520,5rtkit-daemon1795-21rtkit-daemon21:32:141
179699520,4rtkit-daemon1795-21rtkit-daemon19:16:251
334522499516,6cyclictest3361573-21seq19:47:561
334522499515,27cyclictest3393475-21diskmemload21:27:351
334522499512,5cyclictest3471620-21apt-get23:00:151
334522499511,7cyclictest3436049-21ssh22:08:391
334522499510,9cyclictest3516208-21ssh00:02:181
334522499508,19cyclictest0-21swapper/100:19:081
334522499502,6cyclictest3426271-21apt-get21:55:121
334522499501,9cyclictest3450013-21ssh22:28:511
334522499501,7cyclictest3535043-21ssh00:30:321
334522499501,4cyclictest3358087-21apt-get19:40:121
334522499501,10cyclictest3470213-21ssh22:57:211
3345224995010,23cyclictest3393475-21diskmemload22:21:261
179699500,3rtkit-daemon1795-21rtkit-daemon23:14:270
334522499497,30cyclictest3393475-21diskmemload22:11:251
334522499491,9cyclictest3478215-21apt-get23:10:261
334522499491,9cyclictest3476881-21ssh23:06:461
334522499491,7cyclictest3393475-21diskmemload23:24:511
334522499491,7cyclictest3354166-21apt-get19:30:111
334522499491,4cyclictest3370982-21ntp_states20:10:201
334522499490,9cyclictest3425162-21ssh21:52:521
334522499490,9cyclictest3417366-21ssh21:41:181
334522499490,8cyclictest3452706-21ssh22:32:091
334522499490,7cyclictest3413903-21ssh21:36:151
334522499488,8cyclictest3509824-21ssh23:54:011
334522499482,5cyclictest0-21swapper/123:36:051
334522499481,9cyclictest3350366-21irqstats19:20:171
334522499481,8cyclictest3490024-21memory23:25:181
334522499481,7cyclictest3432480-21sh22:03:461
334522499481,6cyclictest3499869-21apt-get23:40:111
334522499481,5cyclictest3397446-21apt-get21:15:121
334522499480,9cyclictest3457084-21ssh22:39:201
334522499480,8cyclictest3465991-21ssh22:50:411
334522499480,6cyclictest3403600-21ssh21:23:051
334522499480,4cyclictest3482562-21apt-get23:15:111
3345215994814,10cyclictest3393475-21diskmemload00:01:050
3345215994813,13cyclictest3415650-21apt-get21:40:120
179699480,3rtkit-daemon1795-21rtkit-daemon19:14:061
334522499472,7cyclictest3521397-21ntp_states00:10:201
334522499471,9cyclictest3517887-21df_inode00:05:141
334522499471,8cyclictest3442617-21ssh22:18:051
334522499470,9cyclictest3390547-21ntp_states21:00:221
334522499470,9cyclictest3384675-21ntp_states20:45:211
334522499470,9cyclictest3356880-21ntp_states19:35:211
334522499470,8cyclictest3392108-21gltestperf21:05:181
179699470,3rtkit-daemon0-21swapper/022:30:040
179699470,3rtkit-daemon0-21swapper/021:12:370
179699470,19rtkit-daemon1795-21rtkit-daemon20:55:471
334522499461,6cyclictest3393475-21diskmemload00:35:251
334522499461,5cyclictest3393475-21diskmemload23:32:101
334522499461,29cyclictest3495033-21kworker/u8:000:22:221
334522499460,9cyclictest3383717-21munin-run20:45:001
334521599469,10cyclictest3373927-21/usr/sbin/munin20:20:000
3345215994613,10cyclictest3495985-21ssh23:34:240
3345215994612,11cyclictest3393475-21diskmemload22:38:070
179699460,4rtkit-daemon1795-21rtkit-daemon19:20:180
334521599458,21cyclictest3503497-21apt-get23:45:120
334521599458,11cyclictest3440223-21apt-get22:15:130
3345215994513,10cyclictest3393475-21diskmemload00:26:260
3345215994512,10cyclictest3491789-21ssh23:27:470
3345215994511,11cyclictest3496453-21ssh23:35:050
3345215994511,11cyclictest3393475-21diskmemload00:24:110
334522499440,8cyclictest3365817-21sshd19:57:121
3345215994413,8cyclictest3422741-21apt-get21:50:100
3345215994413,13cyclictest3519957-21ssh00:08:040
3345215994413,11cyclictest3393475-21diskmemload00:11:390
3345215994413,10cyclictest3393475-21diskmemload21:24:160
3345215994411,10cyclictest3393475-21diskmemload00:37:580
179699440,1rtkit-daemon1795-21rtkit-daemon23:57:331
334522499431,5cyclictest3393475-21diskmemload23:46:421
334521599439,11cyclictest3429695-21apt-get22:00:120
334521599438,20cyclictest3507015-21apt-get23:50:120
334521599438,12cyclictest3377839-21latency_hist20:30:010
3345215994313,10cyclictest3393475-21diskmemload23:57:490
3345215994312,10cyclictest3525741-21ssh00:18:390
3345215994312,10cyclictest3393475-21diskmemload23:20:450
179699430,4rtkit-daemon1795-21rtkit-daemon22:52:190
179699430,1rtkit-daemon1795-21rtkit-daemon00:25:081
334522499422,30cyclictest3378035-21apt-get20:30:141
334521599428,11cyclictest3412174-21apt-get21:35:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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