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2026-08-02 - 13:44
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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 Sun Aug 02, 2026 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3683224512214,90sleep00-21swapper19:00:340
39259917018,53cyclictest28316-21df_inode00:18:200
39259916914,46cyclictest15383-21latency_hist22:07:330
39259916913,43cyclictest2506-21/usr/sbin/munin21:29:130
39259916842,106cyclictest26111-21sendmail00:12:280
39259916718,23cyclictest21068-21apt-get23:57:540
39259916715,42cyclictest17536-21/usr/sbin/munin22:13:160
39259916417,40cyclictest22551-21munin-run20:47:300
39259916415,127cyclictest30879-21df21:18:130
39259916412,44cyclictest29278-21/usr/sbin/munin22:49:120
39259916314,24cyclictest19188-21df22:18:110
39259916314,23cyclictest5889-21fw_conntrack23:13:290
39259916313,58cyclictest14588-21irqstats23:38:390
39259916242,23cyclictest18816-21timerandwakeup20:23:330
39259916218,27cyclictest12683-21df23:33:110
39259916217,41cyclictest32752-21apt-get22:57:500
39259916217,23cyclictest3352-21apt-get21:32:440
39259916213,41cyclictest28599-21ssh21:11:510
39259916140,23cyclictest4481-21ntp_kernel_pll_19:03:200
39259916119,38cyclictest9297-21df_inode23:23:230
39259916111,42cyclictest11842-21/usr/sbin/munin19:47:500
39259916034,32cyclictest15859-21apt-get23:42:460
39259916016,23cyclictest16389-21users22:09:140
39259916015,42cyclictest29215-21df_inode21:13:180
39259916015,22cyclictest12451-21irqstats21:58:350
39259916013,62cyclictest31952-21memory00:28:510
39259916010,59cyclictest1003-21ssh21:25:120
39259915942,22cyclictest15832-21latency20:08:170
39259915933,34cyclictest5862-21find21:39:090
39259915932,32cyclictest0-21swapper23:12:050
39259915925,34cyclictest0-21swapper23:50:320
39259915917,26cyclictest11746-21munin-run19:47:290
39259915915,47cyclictest6810-21apt-get21:42:470
39259915915,23cyclictest24109-21apt-get22:32:460
39259915912,21cyclictest10663-21fw_conntrack21:53:320
39259915841,24cyclictest19237-21cstates20:27:530
39259915819,37cyclictest25767-21fw_conntrack21:03:290
39259915818,40cyclictest27894-21df_inode22:43:190
39259915815,22cyclictest31024-21apt-get22:52:530
39259915739,22cyclictest23108-21df_inode00:03:180
39259915739,19cyclictest12882-21cpu19:52:520
39259915738,23cyclictest6620-21cpu19:17:530
39259915733,23cyclictest11566-21grep23:29:110
39259915616,39cyclictest26470-21ntp_states22:38:590
39259915616,22cyclictest7595-21df_abs19:22:580
39259915615,24cyclictest2026-21/usr/sbin/munin23:02:380
39259915613,22cyclictest19859-21memory23:53:460
39259915610,27cyclictest27669-21ssh00:16:380
39259915541,22cyclictest20039-21aten_r5power_po20:32:530
39259915518,46cyclictest20651-21apt-get22:22:450
39259915517,43cyclictest23563-21apt-get20:52:440
39259915515,24cyclictest9231-21ssh21:49:060
39259915515,22cyclictest8246-21apt-get19:27:440
39259915513,25cyclictest29738-21/usr/sbin/munin00:22:560
39259915511,59cyclictest22475-21aten_r5power_po22:28:020
39259915419,27cyclictest16573-21df20:12:590
39259915418,27cyclictest25260-21munin-run21:02:320
39259915415,37cyclictest7611-21fw_conntrack23:18:300
39259915415,22cyclictest9957-21munin-run19:37:300
39259915318,44cyclictest17511-21/usr/sbin/munin20:17:590
39259915317,35cyclictest21652-21munin-run20:42:290
39259915316,35cyclictest15345-21munin-run20:07:290
39259915216,46cyclictest10395-21irqstats19:38:120
39259915114,37cyclictest4947-21munin-node19:07:370
39259915112,42cyclictest23447-21munin-run20:52:270
3925991508,27cyclictest13863-21df19:57:570
39259915010,26cyclictest6390-21ls19:17:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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