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2026-04-15 - 11:09
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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 Wed Apr 15, 2026 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32757225790,11sleep032575-1kworker/u3:219:06:040
5039910617,65cyclictest19128-21df_inode22:33:360
5039910432,56cyclictest30777-21apt-get23:08:040
5039910416,46cyclictest21016-21df_inode00:13:390
5039910319,63cyclictest12608-21memory23:49:040
5039910317,66cyclictest24464-21df_inode00:23:380
5039910317,46cyclictest5042-21apt-get21:53:060
5039910313,27cyclictest31235-21/usr/sbin/munin21:34:150
5039910117,46cyclictest18183-21users00:04:340
5039910117,45cyclictest27363-21ssh00:32:340
5039910116,48cyclictest6898-21/usr/sbin/munin21:58:170
5039910114,65cyclictest11908-21users20:08:510
5039910113,51cyclictest29249-21ssh21:28:410
5039910112,66cyclictest15911-21grep22:24:070
5039910110,26cyclictest26209-21zcat21:19:210
5039910012,65cyclictest10949-21ls23:44:090
50399999,68cyclictest1556-21ls19:12:500
503999916,64cyclictest10718-21memory22:09:020
503999915,21cyclictest25635-21apt-get22:53:090
503999913,25cyclictest15206-21ssh23:56:490
503999911,68cyclictest22018-21sh21:08:080
503999832,49cyclictest0-21swapper23:35:260
503999815,24cyclictest3576-21expr21:48:230
503999814,63cyclictest22101-21ssh22:42:460
503999814,63cyclictest12445-21memory22:14:060
503999813,64cyclictest20558-21ls00:12:460
503999813,63cyclictest28707-21ssh00:35:420
503999813,63cyclictest2340-21ssh23:19:070
503999813,62cyclictest783-21/usr/sbin/munin23:14:230
503999813,25cyclictest23612-21ssh22:46:470
503999811,39cyclictest12476-21grep20:13:350
503999726,52cyclictest8480-21sshd22:02:530
503999717,60cyclictest22749-21df_inode00:18:370
503999712,64cyclictest24249-21memory21:14:030
503999711,26cyclictest15532-21ssh23:57:550
503999617,58cyclictest17622-21memory22:29:100
503999616,24cyclictest32717-21fw_conntrack21:38:460
503999616,24cyclictest25515-21munin-run22:52:440
503999616,19cyclictest2079-21irqstats21:43:580
503999613,60cyclictest1690-21snmpd23:32:400
503999612,44cyclictest28279-21ssh21:25:180
503999535,45cyclictest0-21swapper20:32:420
503999517,40cyclictest27704-21df_inode22:58:340
503999514,42cyclictest29619-21memory23:04:070
503999510,64cyclictest17548-21wget20:43:080
503999510,26cyclictest14925-21ssh22:21:100
503999413,42cyclictest9207-21users19:53:500
503999322,49cyclictest6665-21apt-get19:43:000
503999320,55cyclictest0-21swapper23:26:410
503999313,43cyclictest16518-21latency_hist20:37:470
503999313,22cyclictest2053-21munin-run19:17:440
503999312,61cyclictest2899-21grep19:18:480
503999312,23cyclictest5264-21cat19:33:350
503999218,35cyclictest19090-21grep20:48:490
503999214,56cyclictest9186-21memory23:39:040
503999127,56cyclictest0-21swapper19:38:190
503999112,57cyclictest9780-21sort19:58:370
503999011,59cyclictest4712-21users19:28:510
503998927,46cyclictest0-21swapper21:03:350
503998916,20cyclictest20452-21fw_conntrack20:58:240
503998830,38cyclictest1607-21munin-node20:17:530
503998818,23cyclictest16971-21memory20:38:330
503998817,23cyclictest11021-21users20:03:510
503998813,26cyclictest14317-21/usr/sbin/munin20:23:370
503998810,27cyclictest19431-21cstates20:53:090
503998715,22cyclictest3473-21memory19:23:340
50399869,59cyclictest7647-21aten_r5power_vo19:48:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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