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2026-05-26 - 20:03
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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 rackdslot3.osadl.org (updated Tue May 26, 2026 12:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
194562207173,22sleep30-21swapper/307:08:243
193972206173,22sleep10-21swapper/107:07:381
195082204171,22sleep00-21swapper/007:09:050
193712204171,22sleep20-21swapper/207:07:192
3164621430,3sleep11988099cyclictest08:40:201
139391650,1ptp4l401ktimersoftd/307:15:233
1988099622,58cyclictest0-21swapper/107:26:141
1988099622,58cyclictest0-21swapper/107:26:131
1988099599,11cyclictest16142-21date08:10:001
1988099599,10cyclictest6099-21latency_hist12:20:011
139391580,1ptp4l401ktimersoftd/309:50:193
1988099579,15cyclictest26505-21chrt07:20:491
19880995710,10cyclictest14623-21cat12:35:211
1988099569,11cyclictest22852-21irqrtprio09:30:191
1988099566,10cyclictest0-21swapper/112:30:221
139391560,1ptp4l401ktimersoftd/311:28:063
1988099548,15cyclictest22533-21ls10:35:271
1988099538,13cyclictest21985-21apt-get11:45:111
1987999527,21cyclictest13224-21awk08:00:270
171132510,5sleep210003-1kworker/2:2H09:20:012
19881994742,3cyclictest1308-21sshd10:09:372
1988099470,14cyclictest14799-21apt-get11:30:101
1988099469,7cyclictest18195-21meminfo11:35:191
1988099469,7cyclictest12186-21irqstats10:15:171
311922450,2sleep30-21swapper/310:55:173
1988099440,13cyclictest26397-21sshd09:38:181
139391440,1ptp4l401ktimersoftd/310:45:503
57898430,2rtkit-daemon0-21swapper/211:18:062
307512430,2sleep10-21swapper/107:30:241
139391430,2ptp4l401ktimersoftd/311:33:363
139391430,0ptp4l401ktimersoftd/311:07:383
19881994237,3cyclictest33-21ksoftirqd/208:00:002
19881994237,3cyclictest33-21ksoftirqd/208:00:002
139391420,1ptp4l401ktimersoftd/311:21:153
139391420,1ptp4l401ktimersoftd/310:35:283
139391420,0ptp4l401ktimersoftd/308:39:203
139391420,0ptp4l401ktimersoftd/307:32:043
19881994137,2cyclictest20278-21irqrtprio11:40:192
19881994034,3cyclictest33-21ksoftirqd/209:25:012
19881994027,11cyclictest33-21ksoftirqd/211:20:112
1988099400,8cyclictest7562-21meminfo10:05:211
1988099400,7cyclictest32747-21irqstats07:35:181
1988099400,15cyclictest29493-21diskstats12:00:151
19881993935,3cyclictest33-21ksoftirqd/211:40:002
19881993934,3cyclictest33-21ksoftirqd/210:40:012
19881993934,3cyclictest33-21ksoftirqd/207:25:002
139391390,0ptp4l401ktimersoftd/309:00:263
139391390,0ptp4l401ktimersoftd/308:50:113
19881993833,3cyclictest33-21ksoftirqd/207:40:002
19881993832,4cyclictest33-21ksoftirqd/210:25:002
19881993832,4cyclictest33-21ksoftirqd/210:25:002
19881993828,9cyclictest33-21ksoftirqd/209:30:272
19881993827,9cyclictest33-21ksoftirqd/211:06:182
19881993826,10cyclictest33-21ksoftirqd/210:45:132
19880993810,17cyclictest4052-21cut07:45:001
1988099380,7cyclictest6905-21iostat_ios12:20:191
1987999381,3cyclictest2518-21gnome-shell08:26:580
139391380,0ptp4l401ktimersoftd/309:40:183
139391380,0ptp4l401ktimersoftd/309:40:183
19882993732,3cyclictest26460-21cron11:55:003
19880993732,3cyclictest25-21ksoftirqd/107:15:101
139391370,0ptp4l401ktimersoftd/311:02:463
19882993631,3cyclictest41-21ksoftirqd/308:35:003
1988299361,32cyclictest11100-21sh08:00:003
1988299361,32cyclictest11100-21sh08:00:003
19881993632,3cyclictest33-21ksoftirqd/207:20:012
19881993631,3cyclictest33-21ksoftirqd/212:35:122
19881993631,3cyclictest33-21ksoftirqd/212:30:022
19881993631,3cyclictest33-21ksoftirqd/212:20:242
19881993631,3cyclictest33-21ksoftirqd/211:49:592
19881993631,3cyclictest33-21ksoftirqd/211:25:132
19881993631,3cyclictest33-21ksoftirqd/210:30:262
19881993631,3cyclictest33-21ksoftirqd/209:14:292
19881993631,3cyclictest33-21ksoftirqd/209:14:292
19881993631,3cyclictest33-21ksoftirqd/208:45:182
19881993630,4cyclictest33-21ksoftirqd/209:46:592
19881993630,4cyclictest33-21ksoftirqd/208:56:222
19881993630,3cyclictest33-21ksoftirqd/211:15:002
19881993629,5cyclictest33-21ksoftirqd/207:42:092
1988099368,14cyclictest1317-21runrttasks10:57:591
19880993629,4cyclictest25-21ksoftirqd/109:50:571
1988099360,7cyclictest27095-21df_inode11:55:131
1988099360,7cyclictest15790-21irqstats09:15:191
1988099360,16cyclictest2518-21gnome-shell08:33:581
139391360,0ptp4l401ktimersoftd/308:45:263
19882993529,4cyclictest41-21ksoftirqd/311:18:353
1988299352,31cyclictest6369-21cat07:50:003
19881993531,2cyclictest33-21ksoftirqd/209:40:122
19881993531,2cyclictest33-21ksoftirqd/209:40:112
19881993530,3cyclictest33-21ksoftirqd/212:20:002
19881993530,3cyclictest33-21ksoftirqd/210:25:252
19881993530,3cyclictest33-21ksoftirqd/209:35:192
19881993529,4cyclictest33-21ksoftirqd/210:58:452
19880993529,4cyclictest25-21ksoftirqd/111:41:171
19880993529,4cyclictest25-21ksoftirqd/110:53:471
1987999359,24cyclictest1180-21dump-pmu-power12:10:000
19879993530,3cyclictest9-21ksoftirqd/008:17:580
19879993529,4cyclictest9-21ksoftirqd/011:17:250
19882993429,3cyclictest41-21ksoftirqd/312:10:123
19882993429,3cyclictest41-21ksoftirqd/309:28:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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