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2026-03-29 - 06:20
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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 rackaslot8.osadl.org (updated Sun Mar 29, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
61302312287,16sleep20-21swapper/219:07:382
62382265237,18sleep10-21swapper/119:09:021
61282263216,37sleep00-21swapper/019:07:360
63102258207,18sleep30-21swapper/319:09:563
10682610,0sleep00-21swapper/000:28:530
196442600,0sleep00-21swapper/022:02:380
87462570,0sleep30-21swapper/323:54:093
284452550,0sleep10-21swapper/122:46:481
87732530,0sleep20-21swapper/200:13:502
48852530,0sleep20-21swapper/220:15:182
236092520,0sleep20-21swapper/221:25:242
66422210,1sleep00-21swapper/021:15:210
89252190,0sleep30-21swapper/300:33:373
226472170,0sleep00-21swapper/023:22:550
277562160,0sleep20-21swapper/222:07:332
252342160,0sleep10-21swapper/123:24:561
73552150,0sleep10-21swapper/122:15:131
294102130,1sleep2281ksoftirqd/222:47:332
642099112,3cyclictest275-21systemd-journal19:45:010
642299100,9cyclictest10510-21munin-run20:30:011
642099103,2cyclictest8464-21sh21:55:230
642099102,3cyclictest658-21snmpd23:47:120
64209991,1cyclictest0-21swapper/022:06:110
64209990,3cyclictest10717-21awk00:35:000
28825290,0sleep30-21swapper/300:25:203
20359290,0sleep30-21swapper/321:43:343
64309984,3cyclictest504-21dbus-daemon23:00:493
64309980,3cyclictest30412-21munin-run21:50:023
64229980,7cyclictest18036-21sshd21:22:421
64209982,1cyclictest0-21swapper/000:16:180
64209980,3cyclictest275-21systemd-journal20:58:500
25082280,0sleep30-21swapper/321:00:143
17007280,0sleep30-21swapper/319:30:133
64309975,1cyclictest16053-21cat22:40:013
64309973,3cyclictest658-21snmpd22:52:503
64309973,3cyclictest658-21snmpd20:21:153
64309973,3cyclictest504-21dbus-daemon20:15:193
64309973,3cyclictest275-21systemd-journal23:13:053
64309973,3cyclictest275-21systemd-journal19:22:193
64309973,2cyclictest275-21systemd-journal21:59:273
64309973,1cyclictest0-21swapper/300:04:183
64269976,1cyclictest257382sleep223:25:102
64269973,3cyclictest658-21snmpd22:01:482
64269973,3cyclictest275-21systemd-journal23:16:142
64269972,3cyclictest31799-21munin-run20:05:012
64269971,3cyclictest503-21rs:main2
64269970,4cyclictest9359-21awk23:35:002
64229976,1cyclictest0-21swapper/121:34:511
64229973,3cyclictest658-21snmpd23:17:231
64229973,3cyclictest658-21snmpd22:41:521
64229973,3cyclictest658-21snmpd00:32:341
64229972,4cyclictest658-21snmpd23:31:081
64229972,3cyclictest13958-21munin-run21:40:001
64209973,3cyclictest658-21snmpd22:40:040
64209973,3cyclictest275-21systemd-journal21:35:110
64209973,3cyclictest275-21systemd-journal20:38:240
9828260,1sleep00-21swapper/023:35:120
64309966,0cyclictest0-21swapper/321:13:053
64309966,0cyclictest0-21swapper/300:16:323
64309963,2cyclictest8676-21ssh21:35:563
64309963,2cyclictest836-21ssh22:30:163
64309963,2cyclictest5499-21ssh21:34:523
64309963,2cyclictest2890-21head20:10:193
64309963,2cyclictest27773-21ssh23:05:553
64309963,2cyclictest27285-21chrt19:54:403
64309963,2cyclictest25199-21sort22:25:203
64309963,2cyclictest20636-21cron19:40:023
64309963,2cyclictest2039-21fschecks_count23:30:153
64309963,2cyclictest12551-21ssh22:56:513
64309963,2cyclictest11015-21rm22:16:553
64309963,1cyclictest0-21swapper/322:12:073
64309963,1cyclictest0-21swapper/321:16:353
64309962,4cyclictest29823-21kworker/3:119:46:393
64309962,3cyclictest658-21snmpd23:47:423
64309962,3cyclictest658-21snmpd23:41:573
64309962,3cyclictest658-21snmpd23:20:083
64309962,3cyclictest658-21snmpd23:16:143
64309962,3cyclictest658-21snmpd22:43:023
64309962,3cyclictest658-21snmpd21:28:223
64309962,3cyclictest658-21snmpd21:20:523
64309962,3cyclictest658-21snmpd21:06:553
64309962,3cyclictest658-21snmpd20:42:123
64309962,3cyclictest658-21snmpd20:32:313
64309962,3cyclictest658-21snmpd20:26:243
64309962,3cyclictest658-21snmpd19:56:143
64309962,3cyclictest658-21snmpd19:26:133
64309962,3cyclictest658-21snmpd00:22:283
64309962,3cyclictest3266-21cat00:10:153
64309962,3cyclictest31584-21cat21:50:153
64309962,3cyclictest25760-21cat22:45:163
64309962,1cyclictest0-21swapper/322:20:283
64309962,1cyclictest0-21swapper/300:05:393
64309961,3cyclictest275-21systemd-journal22:02:533
64309960,6cyclictest0-21swapper/323:26:373
64309960,6cyclictest0-21swapper/322:05:183
64309960,2cyclictest17420-21/usr/sbin/munin20:45:153
64269964,1cyclictest3420-21smart_sda23:50:172
64269963,2cyclictest8401-21ssh21:35:432
64269963,2cyclictest7974-21ssh22:54:402
64269963,2cyclictest658-21snmpd22:57:472
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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