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2026-07-01 - 19:22
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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 50 highest latencies:
System rackbslot7.osadl.org (updated Wed Jul 01, 2026 12:44:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
67319912361,13cyclictest29626-21sh09:23:270
5800210410,66sleep25822-21pluginstate06:53:382
6747991033,30cyclictest390-21seq11:17:512
67479910060,35cyclictest20495-21kworker/u18:2+events_unbound07:47:562
6747999976,15cyclictest15356-21systemd-run11:42:562
6747999976,15cyclictest15356-21systemd-run11:42:562
674799983,49cyclictest5576-21ssh09:38:082
6737999857,34cyclictest0-21swapper/109:48:291
6737999849,42cyclictest0-21swapper/111:38:291
6737999849,42cyclictest0-21swapper/111:38:291
674799963,32cyclictest6285-21seq12:21:502
6747999613,42cyclictest105752basename07:08:072
6737999654,35cyclictest19081-21kworker/u17:1-rpciod09:08:311
673799963,36cyclictest16935-21latency_hist07:27:591
673799963,36cyclictest16935-21latency_hist07:27:591
6747999556,30cyclictest11026-21kworker/u18:2-nfsiod11:47:092
6737999353,32cyclictest0-21swapper/110:40:131
6731999373,15cyclictest21496-21latency_hist11:52:590
6731999373,15cyclictest21496-21latency_hist11:52:590
6747999269,16cyclictest20009-21apt-key07:37:572
6747999269,16cyclictest20009-21apt-key07:37:572
6737999255,30cyclictest0-21swapper/109:23:291
6747999165,16cyclictest0-21swapper/208:23:242
6747999152,32cyclictest0-21swapper/212:13:202
6747999146,39cyclictest0-21swapper/212:08:182
6755999055,24cyclictest14742-21chrt07:18:323
6747999052,33cyclictest6723-21cyclictest11:52:352
6747999052,33cyclictest6723-21cyclictest11:52:352
6747999049,31cyclictest0-21swapper/211:58:282
6747999049,31cyclictest0-21swapper/211:58:282
6747999047,36cyclictest352-21runrttasks07:22:572
6737999069,15cyclictest18635-21threads09:58:311
6737999049,36cyclictest6723-21cyclictest09:02:581
6737999047,37cyclictest21282-21/usr/sbin/munin10:58:321
6747998951,31cyclictest0-21swapper/211:33:202
674799893,36cyclictest352-21runrttasks11:29:572
674799893,36cyclictest352-21runrttasks11:29:572
674799893,25cyclictest30957-21awk08:08:312
674799893,25cyclictest30957-21awk08:08:312
6747998866,14cyclictest2374-21systemd-journal09:24:282
6747998843,39cyclictest13618-21diskmemload10:43:462
6747998843,39cyclictest13618-21diskmemload10:43:462
673799884,39cyclictest15804-21ssh09:53:341
673799882,47cyclictest13618-21diskmemload12:18:071
673799882,34cyclictest23257-21fschecks_count09:13:181
6747998765,15cyclictest6723-21cyclictest09:18:332
674799873,35cyclictest19702-21munin-run09:07:572
674799873,31cyclictest29907-21/usr/sbin/munin10:19:232
674799873,31cyclictest29907-21/usr/sbin/munin10:19:232
673799873,40cyclictest26782-21ssh12:01:431
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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