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2026-01-07 - 00:29
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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 Tue Jan 06, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
58591924150,9sleep00-21swapper/007:05:320
5862022254195,44sleep10-21swapper/107:08:281
7516202710,1chrt751621-21sh11:40:000
179699570,4rtkit-daemon1795-21rtkit-daemon08:24:460
179699570,3rtkit-daemon0-21swapper/011:22:571
179699570,3rtkit-daemon0-21swapper/009:57:001
58646999563,7cyclictest751873-21apt-get11:40:141
58646999562,6cyclictest767451-21apt-get12:00:131
58646999562,37cyclictest740399-21apt-get11:25:141
58646999560,8cyclictest727551-21sh11:07:531
179699560,4rtkit-daemon1795-21rtkit-daemon10:33:020
179699560,25rtkit-daemon893-21snmpd12:18:581
58646999552,5cyclictest782835-21apt-get12:20:131
58646999552,14cyclictest659531-21apt-get09:40:141
58646999551,7cyclictest645934-21sh09:23:341
58646999551,4cyclictest679373-21apt-get10:05:141
58646999551,10cyclictest686914-21ssh10:15:051
179699550,3rtkit-daemon0-21swapper/012:26:351
58646999542,8cyclictest698426-21apt-get10:30:111
58646999542,5cyclictest732817-21apt-get11:15:111
58646999542,5cyclictest651793-21apt-get09:30:181
58646999541,8cyclictest685599-21ssh10:12:351
586469995410,31cyclictest634798-21diskmemload10:23:221
58646999540,8cyclictest765426-21ssh11:56:121
58646999540,8cyclictest747317-21ssh11:33:441
58646999540,7cyclictest704477-21ssh10:37:171
179699540,3rtkit-daemon0-21swapper/008:32:121
179699540,27rtkit-daemon892-21thermald09:08:561
58646999532,5cyclictest721323-21apt-get11:00:131
58646999532,5cyclictest649942-21lsb_release09:27:431
58646999531,8cyclictest763314-21ssh11:54:431
58646999531,6cyclictest694710-21apt-get10:25:131
58646999531,6cyclictest634798-21diskmemload11:35:411
58646999531,5cyclictest794327-21apt-get12:35:131
58646999531,5cyclictest667325-21apt-get09:50:121
58646999531,3cyclictest622872-21apt-get08:40:161
179699530,3rtkit-daemon0-21swapper/009:36:271
6111052520,5sleep0611108-21acpi08:10:110
58646999522,6cyclictest674761-21apt-get10:00:021
58646999521,7cyclictest757156-21ssh11:45:371
58646999521,6cyclictest634798-21diskmemload09:19:121
58646999521,6cyclictest598981-21apt-get07:40:111
58646999520,8cyclictest792258-21sh12:31:131
58646999520,8cyclictest732318-21sh11:14:351
58646999520,8cyclictest720168-21ssh10:58:091
58646999520,8cyclictest592720-21seq07:23:481
58646999520,7cyclictest636850-21ssh09:11:101
58646999511,9cyclictest629896-21ntp_states08:55:241
58646999511,8cyclictest771325-21apt-get12:05:111
58646999511,5cyclictest663367-21apt-get09:45:131
58646999511,10cyclictest778609-21munin-run12:15:001
58646999510,9cyclictest711558-21ssh10:46:091
58646999510,9cyclictest613582-21irqstats08:15:171
58646999510,9cyclictest610544-21seq08:06:101
58646999501,8cyclictest706028-21apt-get10:40:111
58646999501,5cyclictest713550-21/usr/sbin/munin10:50:261
58646999501,10cyclictest611322-21df08:10:151
58646999500,8cyclictest605204-21apt-check07:55:031
58646999491,8cyclictest595771-21ntp_states07:30:181
58646999490,8cyclictest608608-21seq08:01:171
179699490,4rtkit-daemon1795-21rtkit-daemon12:01:120
179699490,4rtkit-daemon1795-21rtkit-daemon11:55:590
179699490,4rtkit-daemon1795-21rtkit-daemon10:11:150
58646999481,6cyclictest603484-21memory07:50:201
58646999480,8cyclictest625019-21df08:45:151
179699480,3rtkit-daemon1795-21rtkit-daemon10:37:480
179699480,3rtkit-daemon1795-21rtkit-daemon09:29:580
179699470,4rtkit-daemon1795-21rtkit-daemon10:28:160
179699470,4rtkit-daemon1795-21rtkit-daemon07:18:240
58646999461,4cyclictest616991-21apt-get08:25:131
179699450,3rtkit-daemon1795-21rtkit-daemon11:48:190
58646899447,7cyclictest13-21ksoftirqd/010:05:010
58646899446,7cyclictest13-21ksoftirqd/012:20:010
179699420,3rtkit-daemon0-21swapper/111:26:370
58646999411,7cyclictest590599-21chrt07:17:081
58646999401,8cyclictest626978-21diskstats08:50:151
58646999400,9cyclictest621658-21ntp_states08:35:201
58646999390,8cyclictest632785-21seq09:04:341
58646999390,2cyclictest591359-1kworker/1:0H07:37:591
58646999380,9cyclictest616802-21munin-run08:25:011
58646899382,6cyclictest13-21ksoftirqd/011:50:010
58646999379,5cyclictest601768-21grep07:45:201
586469993710,3cyclictest850-21runrttasks07:27:391
58646899370,8cyclictest13-21ksoftirqd/009:05:010
58646999360,34cyclictest586855-21grep07:10:161
586468993510,6cyclictest634798-21diskmemload09:15:220
58646899350,7cyclictest13-21ksoftirqd/010:25:000
179699340,4rtkit-daemon1795-21rtkit-daemon10:08:130
58646899336,6cyclictest161rcuc/007:45:210
58646899331,6cyclictest635075-21apt-get09:10:110
179699330,4rtkit-daemon1795-21rtkit-daemon12:34:570
179699330,4rtkit-daemon1795-21rtkit-daemon10:46:080
179699330,3rtkit-daemon1795-21rtkit-daemon11:05:200
58646899324,7cyclictest659510-21/usr/sbin/munin09:40:220
58646899320,8cyclictest13-21ksoftirqd/012:25:000
179699320,3rtkit-daemon1795-21rtkit-daemon12:05:450
179699320,3rtkit-daemon1795-21rtkit-daemon11:23:040
179699320,3rtkit-daemon1795-21rtkit-daemon08:49:580
179699320,3rtkit-daemon1795-21rtkit-daemon08:36:370
179699320,3rtkit-daemon1795-21rtkit-daemon07:43:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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