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2025-11-28 - 00:23
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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 20 highest latencies:
System rack5slot7.osadl.org (updated Thu Nov 27, 2025 12:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23387223932169,171sleep00-21swapper05:40:110
234789910214,67cyclictest25679-21df_inode10:01:290
234789910211,69cyclictest3195-21basename08:51:110
234789910117,63cyclictest30073-21/usr/sbin/munin08:32:140
234789910117,46cyclictest4236-21apt-get10:36:070
234789910117,46cyclictest27291-21df_inode10:06:300
234789910116,24cyclictest13726-21users11:02:380
234789910115,47cyclictest20854-21fw_conntrack09:46:440
234789910112,29cyclictest14746-21ssh11:06:240
234789910111,26cyclictest25265-21sort10:00:450
234789910016,44cyclictest23351-21irqstats08:11:490
23478999933,50cyclictest0-21swapper10:27:570
23478999917,47cyclictest8882-21ssh09:07:450
23478999916,25cyclictest4538-21df_inode06:51:130
23478999915,44cyclictest21598-21df_inode08:06:310
23478999912,26cyclictest25858-21ssh08:19:360
23478999910,67cyclictest29573-21basename06:11:050
23478999830,49cyclictest0-21swapper09:03:350
23478999817,61cyclictest15339-21irqstats07:46:420
23478999817,60cyclictest29180-21ssh10:12:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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