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2026-03-06 - 18:35
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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 Fri Mar 06, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
165992298270,18sleep10-21swapper/107:07:561
167202277245,21sleep20-21swapper/207:09:132
165732264217,37sleep30-21swapper/307:07:373
165082263237,17sleep00-21swapper/007:06:460
41592620,0sleep20-21swapper/211:02:442
109252620,0sleep10-21swapper/109:30:341
239792610,0sleep30-21swapper/311:52:543
225172610,0sleep20-21swapper/211:32:432
141092610,0sleep30-21swapper/311:27:443
135582610,0sleep20-21swapper/212:05:272
5722600,0sleep10-21swapper/111:39:191
5722600,0sleep10-21swapper/111:39:191
3762580,0sleep00-21swapper/011:00:180
69712530,0sleep10-21swapper/110:25:391
251132530,0sleep00-21swapper/010:17:350
112592520,0sleep00-21swapper/009:11:470
318592190,0sleep10-21swapper/111:57:291
94832140,0sleep30-21swapper/309:10:253
16883991312,1cyclictest12-21ksoftirqd/010:00:010
187822120,0sleep20-21swapper/209:55:012
16883991211,1cyclictest12-21ksoftirqd/012:05:010
16883991211,1cyclictest12-21ksoftirqd/007:30:020
16883991210,2cyclictest12-21ksoftirqd/007:15:010
1688599112,5cyclictest4442-21ssh11:21:471
1688599112,4cyclictest29389-21sh09:41:451
1688599112,1cyclictest6059-21sh11:42:061
1688599111,1cyclictest1297-21apt-get09:45:021
1688599110,2cyclictest18105-21rm12:08:551
1688599110,2cyclictest12419-21users09:50:191
1688599110,1cyclictest0-21swapper/111:10:031
1688399118,2cyclictest12-21ksoftirqd/012:40:000
16883991110,1cyclictest12-21ksoftirqd/011:10:000
16883991110,1cyclictest12-21ksoftirqd/007:15:010
69202100,0sleep10-21swapper/112:20:551
193822100,0sleep30-21swapper/311:11:183
1688599102,7cyclictest7798-21munin-plugin-st08:00:011
1688599102,6cyclictest275-21systemd-journal11:52:431
1688599101,1cyclictest7651-21apt-get09:10:111
1688599101,1cyclictest28827-21/usr/sbin/munin10:00:181
1688599101,1cyclictest13212-21/usr/sbin/munin10:30:201
1688599100,3cyclictest32583-21apt-get08:55:011
1688599100,2cyclictest9817-21ssh12:03:591
1688599100,1cyclictest4919-21ssh09:27:231
1688599100,1cyclictest30774-21ssh09:23:471
1688599100,1cyclictest30476-21sed07:35:201
1688599100,1cyclictest21787-21ssh09:56:011
1688599100,1cyclictest18447-21ssh12:28:191
1688599100,1cyclictest17778-21cut11:30:121
1688599100,1cyclictest14142-21sshd10:10:391
1688399109,1cyclictest12-21ksoftirqd/012:30:000
1688399109,1cyclictest12-21ksoftirqd/011:20:010
1688399109,1cyclictest12-21ksoftirqd/008:05:010
1688399109,1cyclictest12-21ksoftirqd/007:45:010
1688399109,1cyclictest12-21ksoftirqd/007:45:010
1688399107,2cyclictest12-21ksoftirqd/011:00:000
168859993,5cyclictest7168-21diskmemload12:11:021
168859992,6cyclictest31459-21chrt11:00:031
168859992,2cyclictest32211-21cat07:40:141
168859992,2cyclictest32211-21cat07:40:141
168859992,2cyclictest21057-21expr10:15:131
168859992,1cyclictest30601-21grep10:40:131
168859991,3cyclictest4312-21cat09:00:201
168859991,2cyclictest30477-21cat12:35:151
168859991,1cyclictest25915-21munin-plugin-st08:40:001
168859991,1cyclictest23023-21sh10:55:021
168859990,3cyclictest275-21systemd-journal08:04:411
168859990,3cyclictest275-21systemd-journal07:30:011
168859990,3cyclictest15727-21cut10:50:201
168859990,2cyclictest658-21snmpd11:05:121
168859990,2cyclictest483-21avahi-daemon07:35:021
168859990,2cyclictest27751-21chrt08:40:241
168859990,2cyclictest21472-21munin-run08:30:011
168859990,2cyclictest19445-21fschecks_time07:15:011
168859990,2cyclictest18307-21pmu-power08:20:181
168859990,2cyclictest13703-21ssh11:46:311
168859990,1cyclictest5899-21ssh10:05:471
168859990,1cyclictest3602-21ssh12:19:481
168859990,1cyclictest31517-21ssh11:19:071
168859990,1cyclictest27584-21ssh10:38:321
168859990,1cyclictest13762-21rm10:49:471
168859990,1cyclictest0-21swapper/110:22:111
168859990,0cyclictest0-21swapper/111:25:121
168839998,1cyclictest12-21ksoftirqd/011:45:010
168839998,1cyclictest12-21ksoftirqd/008:30:000
168839998,1cyclictest12-21ksoftirqd/008:00:010
168839997,1cyclictest12-21ksoftirqd/007:50:010
168839996,2cyclictest12-21ksoftirqd/010:10:000
168839996,2cyclictest12-21ksoftirqd/009:25:010
27659280,0sleep00-21swapper/010:00:120
168949986,1cyclictest28056-21cat12:15:003
168949984,3cyclictest23155-11brltty12:07:433
168949983,3cyclictest275-21systemd-journal10:30:403
168859982,2cyclictest22394-21cat08:30:161
168859981,2cyclictest29637-21cat08:45:201
168859981,2cyclictest1-21systemd09:05:171
168859981,1cyclictest16051-21/usr/sbin/munin09:15:201
168859981,1cyclictest15031-21apt-get08:15:111
168859980,3cyclictest3661-21/usr/sbin/munin07:50:121
168859980,3cyclictest20515-21cstates07:15:121
168859980,3cyclictest13817-21cut08:10:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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