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2026-09-23 - 02:22
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackfslot7.osadl.org (updated Tue Sep 22, 2026 12:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
446155991298,120cyclictest0-21swapper/612:15:146
44615599831,40cyclictest1944-21rtkit-daemon09:00:566
446155998179,1cyclictest518866-21/usr/sbin/munin09:20:186
446155997960,19cyclictest790-21in:imuxsock07:49:596
44615599790,78cyclictest563770-21awk10:40:186
446152997840,19cyclictest527680-21smartctl09:35:234
446155997618,39cyclictest79-21ksoftirqd/609:05:156
446155997537,19cyclictest607342-21ntpq12:00:206
446155997416,39cyclictest537164-21aten2.4_rfpower09:55:146
446155997334,39cyclictest4162500-21gmain08:57:566
446155997334,39cyclictest4162500-21gmain08:57:556
446155997214,39cyclictest573478-21telnet11:00:116
446155997211,59cyclictest614278-21kworker/u32:1+events_unbound12:25:056
446155997031,19cyclictest7850ktimers/607:11:046
446155997031,19cyclictest0-21swapper/611:33:156
446155997011,59cyclictest589727-21kworker/u32:3+events_unbound11:59:546
446155996829,21cyclictest0-21swapper/610:35:556
446155996829,19cyclictest0-21swapper/610:08:366
446155996829,19cyclictest0-21swapper/608:17:576
44615099689,19cyclictest0-21swapper/211:40:162
44615699678,59cyclictest0-21swapper/708:45:177
44615699678,59cyclictest0-21swapper/708:45:167
446155996749,18cyclictest446147-21cyclictest08:26:016
446155996728,21cyclictest0-21swapper/611:08:486
44615599668,39cyclictest319-21ice-ptp-0000:f4:00.011:26:426
446155996527,38cyclictest0-21swapper/612:10:026
446155996425,19cyclictest446147-21cyclictest12:22:046
446155996424,39cyclictest557375-21expr10:30:186
446155996060,0cyclictest595045-21systemd-run11:40:026
446155995718,39cyclictest595706-21df_inode11:40:136
446155995638,18cyclictest5309762sleep609:42:006
446155995638,18cyclictest446147-21cyclictest08:02:506
446155995618,19cyclictest781ktimers/607:17:546
44615599560,36cyclictest0-21swapper/607:35:186
446155995537,18cyclictest781ktimers/609:36:036
446155995537,18cyclictest4162500-21gmain07:56:156
446155995536,19cyclictest500143-21ntpq08:45:206
446155995536,19cyclictest500143-21ntpq08:45:196
446155995516,39cyclictest781ktimers/607:33:116
446152995516,19cyclictest191rcu_preempt10:20:164
446155995435,19cyclictest781ktimers/612:09:396
446155995414,19cyclictest0-21swapper/611:17:286
44615199540,54cyclictest0-21swapper/309:50:203
446155995334,19cyclictest4162500-21gmain11:48:486
446155995319,34cyclictest0-21swapper/609:15:016
446155995319,34cyclictest0-21swapper/608:23:226
446155995314,39cyclictest0-21swapper/607:41:246
446152995315,19cyclictest236199-21snmpd12:35:364
446150995333,20cyclictest0-21swapper/211:15:152
446156995233,19cyclictest0-21swapper/708:10:177
446155995233,19cyclictest4162500-21gmain08:09:276
446155995233,19cyclictest0-21swapper/612:39:096
446155995233,19cyclictest0-21swapper/612:30:106
446155995233,19cyclictest0-21swapper/609:12:026
446155995233,19cyclictest0-21swapper/607:54:066
446155995233,19cyclictest0-21swapper/607:29:106
446155995233,19cyclictest0-21swapper/607:24:376
446155995233,0cyclictest0-21swapper/608:42:096
446155995231,19cyclictest0-21swapper/610:17:446
446155995218,34cyclictest0-21swapper/610:00:256
446155995218,15cyclictest0-21swapper/611:50:266
446155995214,38cyclictest0-21swapper/608:50:586
446155995213,39cyclictest0-21swapper/608:39:026
446155995213,39cyclictest0-21swapper/608:10:186
446155995213,19cyclictest0-21swapper/610:47:476
446155995213,19cyclictest0-21swapper/609:27:156
446155995212,19cyclictest0-21swapper/608:32:036
446150995214,19cyclictest0-21swapper/211:35:162
446148995214,19cyclictest0-21swapper/009:55:170
446155995133,18cyclictest0-21swapper/610:27:136
446155995133,18cyclictest0-21swapper/609:45:096
446155995132,0cyclictest0-21swapper/610:20:096
446155995112,39cyclictest0-21swapper/611:21:116
446155995112,20cyclictest569180-21ntp_offset10:50:246
446152995133,18cyclictest876-21mta-sts-daemon09:15:184
446155995032,18cyclictest0-21swapper/610:11:096
446155995032,18cyclictest0-21swapper/609:51:266
446155995031,19cyclictest0-21swapper/611:10:056
446155995031,19cyclictest0-21swapper/610:56:506
446155995012,38cyclictest518006-21kworker/u32:5+events_unbound09:32:546
446150995012,19cyclictest0-21swapper/211:00:142
446150995012,19cyclictest0-21swapper/210:10:192
446152994911,19cyclictest0-21swapper/412:30:154
446150994911,19cyclictest0-21swapper/212:30:142
44615199467,19cyclictest0-21swapper/312:00:173
44615199458,18cyclictest0-21swapper/309:05:153
44615199457,19cyclictest0-21swapper/310:50:203
44614899457,19cyclictest0-21swapper/008:05:170
44615099446,19cyclictest0-21swapper/207:15:182
446150994425,19cyclictest0-21swapper/208:15:172
44615099435,19cyclictest0-21swapper/212:20:142
446150994325,18cyclictest0-21swapper/212:25:162
446150994223,19cyclictest0-21swapper/211:25:172
44614899423,39cyclictest0-21swapper/007:25:160
446156994123,18cyclictest0-21swapper/711:35:167
44615399413,19cyclictest0-21swapper/507:20:155
44615299413,19cyclictest0-21swapper/409:40:154
44614899412,20cyclictest0-21swapper/010:10:180
44615699402,19cyclictest0-21swapper/712:10:167
44615099400,39cyclictest0-21swapper/210:00:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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