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2026-08-18 - 09:25
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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 376 highest latencies:
System rack5slot7.osadl.org (updated Tue Aug 18, 2026 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31998224142173,187sleep00-21swapper19:00:370
321509910615,26cyclictest4069-21munin-run21:46:440
321509910543,22cyclictest480-21timerwakeupswit19:03:040
321509910520,65cyclictest8202-21irqstats23:32:490
321509910433,55cyclictest1103-21sshd23:12:180
321509910418,64cyclictest26543-21munin-run00:26:410
321509910219,45cyclictest18672-21ntp_states00:03:120
321509910214,66cyclictest18291-21fw_conntrack22:27:440
321509910213,26cyclictest17466-21ssh23:59:250
321509910118,62cyclictest5845-21apt-get19:37:000
321509910118,22cyclictest27897-21ssh21:21:340
321509910117,43cyclictest3015-21fw_conntrack23:17:440
321509910115,46cyclictest14009-21ssh22:14:570
321509910044,40cyclictest7792-21cpu21:57:160
321509910034,50cyclictest0-21swapper22:50:510
321509910017,43cyclictest1283-21memory21:37:590
321509910017,24cyclictest31878-21df23:07:210
321509910016,66cyclictest29908-21/usr/sbin/munin23:01:520
321509910016,22cyclictest1209-21munin-run19:11:410
32150999917,63cyclictest6425-21fw_conntrack23:27:450
32150999916,45cyclictest23114-21munin-run00:16:410
32150999915,23cyclictest4710-21fw_conntrack23:22:410
32150999817,45cyclictest26664-21apt-get00:26:580
32150999815,23cyclictest20673-21ssh22:33:570
32150999814,22cyclictest22948-21ssh22:41:460
32150999813,44cyclictest11915-21diskmemload22:08:230
32150999813,23cyclictest23849-21users21:08:350
32150999812,63cyclictest16381-21ls20:32:440
32150999812,48cyclictest27029-21/usr/sbin/munin22:53:000
32150999811,64cyclictest5545-21ssh21:50:340
32150999717,60cyclictest32608-21ssh21:34:210
32150999715,42cyclictest9667-21df_inode22:02:320
32150999715,21cyclictest28395-21df_inode21:22:340
32150999714,43cyclictest30305-21memory21:28:040
32150999713,22cyclictest23504-21df00:17:240
32150999712,72cyclictest0-21swapper21:05:110
32150999710,48cyclictest12947-21ssh23:47:110
32150999710,25cyclictest21139-21ssh00:10:340
3215099969,48cyclictest6272-21ssh21:52:360
3215099969,25cyclictest14750-21latency_hist20:26:420
32150999625,53cyclictest0-21swapper23:45:510
32150999614,46cyclictest9736-21df23:37:230
32150999612,63cyclictest29442-21ssh22:59:570
32150999517,41cyclictest4832-21munin-run19:31:420
32150999514,22cyclictest14945-21irqstats22:17:530
32150999513,21cyclictest25014-21fw_conntrack21:12:420
32150999510,63cyclictest11810-21grep20:07:430
32150999440,36cyclictest16612-21if_eth022:22:460
32150999422,47cyclictest23051-21/usr/sbin/munin22:43:360
32150999411,24cyclictest15803-21ssh23:54:400
32150999345,31cyclictest10716-21latency20:02:470
32150999317,25cyclictest17539-21apt-get20:41:570
32150999311,63cyclictest1622-21fw_conntrack19:12:180
32150999311,21cyclictest21726-21snmpd20:28:060
32150999310,43cyclictest3861-21grep19:22:460
32150999310,26cyclictest19243-21tr20:51:410
32150999211,23cyclictest19406-21wget20:52:040
32150999013,44cyclictest8546-21apt-get19:51:530
32150999012,41cyclictest3119-21sort19:21:470
32150999012,28cyclictest7562-21latency_hist19:46:430
32150998918,24cyclictest7905-21df_inode19:47:180
32150998918,23cyclictest4946-21apt-get19:31:580
32150998912,58cyclictest13445-21sort20:17:300
32150998818,22cyclictest16856-21df20:37:090
32150998817,25cyclictest9650-21df19:57:090
32150998713,26cyclictest12152-21/usr/sbin/munin20:12:320
32150998615,25cyclictest20249-21/usr/sbin/munin20:56:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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