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2026-04-17 - 02:19
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 792 highest latencies:
System rack5slot7.osadl.org (updated Fri Apr 17, 2026 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4137224320,11sleep03816-1kworker/u3:119:03:100
51599911043,49cyclictest5054-21load21:38:540
51599910315,67cyclictest25597-21irqstats22:38:440
51599910311,69cyclictest5199-21ssh23:13:540
51599910218,63cyclictest9884-21apt-get23:27:560
51599910218,23cyclictest6467-21apt-get23:18:030
51599910115,24cyclictest1690-21snmpd21:54:080
51599910114,24cyclictest13232-21ssh23:37:420
51599910111,48cyclictest2055-21users21:29:340
51599910041,41cyclictest16412-21sh23:46:350
51599910020,43cyclictest18290-21apt-get22:17:560
51599910017,62cyclictest13391-21/usr/sbin/munin22:03:170
51599910010,27cyclictest17443-21ps23:49:150
51599910010,25cyclictest24823-21ssh00:10:470
5159999917,60cyclictest32652-21ntp_states22:59:080
5159999917,47cyclictest0-21swapper22:08:350
5159999915,55cyclictest0-21swapper23:26:550
5159999910,50cyclictest13717-21ssh23:38:390
5159999818,58cyclictest28445-21ssh22:47:340
5159999818,42cyclictest18722-21df23:53:180
5159999814,63cyclictest3356-21df_inode23:08:310
5159999814,25cyclictest23890-21ssh22:33:520
5159999813,47cyclictest31314-21ssh22:54:470
5159999813,26cyclictest30467-21munin-node00:27:480
5159999812,25cyclictest32316-21sh00:33:110
5159999725,64cyclictest0-21swapper21:15:000
5159999717,61cyclictest21902-21apt-get00:02:550
5159999714,23cyclictest22166-21ssh22:28:500
5159999714,23cyclictest17120-21ssh22:14:140
5159999713,23cyclictest28856-21df22:48:240
5159999710,50cyclictest934-21ssh21:27:390
5159999616,60cyclictest30448-21df_inode21:18:350
5159999615,19cyclictest29704-21users00:24:250
5159999614,36cyclictest1823-21memory23:03:540
5159999612,47cyclictest12348-21/usr/sbin/munin21:59:240
5159999612,23cyclictest21270-21ssh00:00:040
5159999515,60cyclictest26257-21users00:14:260
5159999513,45cyclictest27230-21/usr/sbin/munin21:09:070
5159999512,22cyclictest3391-21memory21:34:160
5159999510,25cyclictest21377-21ssh22:26:360
5159999411,63cyclictest6242-21/usr/sbin/munin21:44:020
5159999411,61cyclictest5980-21sed19:08:450
5159999314,60cyclictest8233-21df21:48:230
5159999313,22cyclictest15663-21sshd20:03:590
5159999312,20cyclictest26549-21latency_hist21:07:430
5159999311,61cyclictest25516-21grep20:58:390
5159999221,54cyclictest0-21swapper20:18:060
5159999214,42cyclictest1690-21snmpd19:16:590
5159999213,24cyclictest9156-21ps19:28:380
5159999136,36cyclictest23789-21grep20:52:390
5159999118,23cyclictest1690-21snmpd20:54:430
5159999114,56cyclictest27394-21df_inode00:18:300
5159999019,23cyclictest9751-21df_inode19:33:100
5159999012,59cyclictest11547-21df19:43:110
5159998922,51cyclictest0-21swapper19:18:370
5159998920,51cyclictest0-21swapper19:57:470
5159998913,59cyclictest13543-21tr19:53:310
5159998913,57cyclictest17426-21sed20:13:420
5159998812,27cyclictest18838-21/usr/sbin/munin20:23:200
5159998810,27cyclictest21227-21sshd20:37:580
5159998716,23cyclictest7964-21df_inode19:23:090
5159998716,22cyclictest12586-21memory19:48:260
5159998712,28cyclictest22576-21/usr/sbin/munin20:43:320
5159998629,41cyclictest0-21swapper20:28:340
5159998616,21cyclictest10683-21fw_conntrack19:38:150
5159998614,24cyclictest20556-21df_inode20:33:140
5159998613,25cyclictest15775-21/usr/sbin/munin20:07:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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