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2026-05-22 - 07:08
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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 Fri May 22, 2026 00:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7708709911010,99cyclictest0-21swapper/321:30:153
770870999618,19cyclictest873-21mta-sts-daemon22:57:293
77087099960,57cyclictest779173-21taskset19:24:383
77087099790,60cyclictest870246-21/usr/sbin/munin22:10:173
770870997314,39cyclictest788118-21/usr/sbin/munin19:40:153
770870997214,39cyclictest922360-21/usr/sbin/munin23:45:163
770870997214,39cyclictest794752-21ntpq19:50:173
770870997033,18cyclictest775895-21timerwakeupswit19:15:233
770870997032,38cyclictest0-21swapper/322:31:363
77086899700,69cyclictest0-21swapper/119:35:021
770870996910,39cyclictest1086-21runrttasks23:13:143
770870996830,38cyclictest0-21swapper/323:22:333
770870996829,39cyclictest0-21swapper/319:14:063
770870996728,39cyclictest0-21swapper/320:37:203
77087099657,39cyclictest945668-21ntpq00:25:223
770870996425,39cyclictest0-21swapper/321:22:523
77087099635,38cyclictest871-21mta-sts-daemon21:56:543
77087099580,39cyclictest925153-21cut23:50:133
770870995718,39cyclictest793322-21munin-run19:50:023
770870995718,39cyclictest0-21swapper/323:27:483
770870995517,38cyclictest871-21mta-sts-daemon22:24:293
770870995517,19cyclictest916723-21munin-run23:35:013
770870995517,19cyclictest821917-21meminfo20:40:173
770870995517,19cyclictest786391-21ntp_states19:35:203
770870995517,19cyclictest776-21dbus-daemon00:15:173
770876995414,39cyclictest0-21swapper/721:20:157
770870995419,15cyclictest0-21swapper/322:03:533
770870995416,19cyclictest888528-21unixbench_singl22:40:223
770870995415,39cyclictest90650irq/68-eno6-TxRx-622:36:553
770870995319,34cyclictest0-21swapper/323:44:013
770870995319,34cyclictest0-21swapper/322:18:403
770870995319,34cyclictest0-21swapper/321:15:173
770870995319,15cyclictest0-21swapper/321:36:173
770870995315,19cyclictest880793-21sed22:30:003
770870995315,19cyclictest805784-21ntp_states20:10:193
770870995314,39cyclictest0-21swapper/322:45:233
770870995233,19cyclictest0-21swapper/323:16:123
770870995233,19cyclictest0-21swapper/321:00:253
770870995233,19cyclictest0-21swapper/320:30:453
770870995233,19cyclictest0-21swapper/320:30:443
770870995233,19cyclictest0-21swapper/320:27:043
770870995233,19cyclictest0-21swapper/320:17:223
770870995233,19cyclictest0-21swapper/319:26:413
770870995233,19cyclictest0-21swapper/300:06:493
770870995214,19cyclictest824642-21memory20:45:163
770870995213,39cyclictest0-21swapper/321:50:173
770876995111,39cyclictest0-21swapper/719:25:167
770870995132,19cyclictest0-21swapper/323:58:043
770870995132,19cyclictest0-21swapper/322:06:403
770870995132,19cyclictest0-21swapper/321:47:003
770870995132,19cyclictest0-21swapper/321:40:563
770870995132,19cyclictest0-21swapper/320:00:253
770870995112,39cyclictest0-21swapper/320:50:193
770870995031,19cyclictest0-21swapper/300:30:253
770870995011,39cyclictest0-21swapper/321:06:503
770870995010,39cyclictest0-21swapper/300:00:183
770870994930,19cyclictest0-21swapper/323:01:363
770870994930,19cyclictest0-21swapper/321:27:013
770870994930,19cyclictest0-21swapper/320:55:243
770870994930,19cyclictest0-21swapper/319:56:023
77087099488,40cyclictest803369-21xargs20:05:223
770870994830,18cyclictest0-21swapper/319:30:253
770870994829,19cyclictest0-21swapper/323:36:003
770870994829,19cyclictest0-21swapper/323:08:123
770870994829,19cyclictest0-21swapper/321:12:403
770870994829,19cyclictest0-21swapper/320:25:013
770870994829,19cyclictest0-21swapper/320:25:003
770870994829,19cyclictest0-21swapper/300:10:523
77087699479,19cyclictest0-21swapper/722:10:167
770870994728,19cyclictest0-21swapper/322:52:483
770870994728,19cyclictest0-21swapper/300:22:163
77087099467,39cyclictest0-21swapper/300:37:503
77087699457,19cyclictest0-21swapper/700:25:187
77087699455,39cyclictest0-21swapper/722:25:167
77087199457,19cyclictest0-21swapper/421:40:424
770871994526,19cyclictest0-21swapper/421:45:164
77087699446,19cyclictest0-21swapper/721:50:167
770872994343,0cyclictest0-21swapper/522:35:165
77087199412,39cyclictest0-21swapper/419:15:154
77086899402,19cyclictest0-21swapper/122:30:161
770872993837,1cyclictest691ktimers/523:10:155
77087199380,19cyclictest0-21swapper/423:50:174
77087699370,37cyclictest0-21swapper/722:45:147
77087699360,35cyclictest0-21swapper/700:00:177
77087699360,17cyclictest0-21swapper/722:00:157
770872993618,18cyclictest0-21swapper/519:40:155
77087299360,16cyclictest0-21swapper/520:05:135
770876993535,0cyclictest839619-21kworker/7:2+events00:35:327
770876993535,0cyclictest761892-21kworker/7:0+events19:14:547
77087699350,15cyclictest0-21swapper/719:30:167
77087299350,16cyclictest0-21swapper/500:15:145
77087299350,15cyclictest0-21swapper/520:25:165
770868993520,15cyclictest876-21mta-sts-daemon23:43:381
770867993516,19cyclictest0-21swapper/021:25:160
77086799350,35cyclictest0-21swapper/022:50:150
77086799350,35cyclictest0-21swapper/019:35:150
77086799350,15cyclictest0-21swapper/019:40:140
770876993434,0cyclictest839619-21kworker/7:2+events23:33:287
770876993434,0cyclictest839619-21kworker/7:2+events21:36:337
770876993434,0cyclictest761892-21kworker/7:0+events20:26:167
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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