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2025-12-10 - 08:03
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 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 50 highest latencies:
System rack2slot7.osadl.org (updated Wed Dec 10, 2025 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4091795994318,10cyclictest121745-21ssh00:23:140
4091795993919,6cyclictest2243333-21munin-node23:18:060
409179599388,12cyclictest29322-21ntpq22:48:150
409179599385,3cyclictest4137005-21apt-get21:21:150
4091795993832,3cyclictest66573-21latency_hist23:26:140
4091795993818,3cyclictest0-21swapper/022:43:130
409179599375,6cyclictest49321-21ssh23:08:190
409179599363,7cyclictest88946-21ld23:48:130
409179599363,7cyclictest88946-21ld23:48:130
4091795993618,13cyclictest83834-21ntpq23:43:120
4091795993612,4cyclictest0-21swapper/021:16:330
409179599354,6cyclictest99031-21ntpq23:58:160
409179999343,3cyclictest171rcu_preempt21:41:172
409179599345,6cyclictest8111-21ssh22:27:110
409179599339,13cyclictest78148-21aten_r2power_vo23:38:080
409179599339,13cyclictest78148-21aten_r2power_vo23:38:080
409179999327,8cyclictest11050irq/107-eth%d21:49:212
409179599323,5cyclictest0-21swapper/021:56:200
4091795993217,10cyclictest0-21swapper/000:06:270
409179599321,12cyclictest4098929-21cut19:38:080
409179599320,8cyclictest4144540-21ntpq21:28:160
409179599320,8cyclictest4144540-21ntpq21:28:160
4091796993119,9cyclictest0-21swapper/119:16:131
409179599313,7cyclictest2569-21rm22:21:170
409179599313,3cyclictest4128379-21sendmail-msp21:08:290
4091795993118,1cyclictest0-21swapper/000:38:130
409179599311,6cyclictest4178779-21ntpq22:03:130
409179599311,4cyclictest4193318-21ntpq22:18:110
409179599307,5cyclictest4182057-1kworker/0:0H+kblockd23:53:050
409179599302,8cyclictest4092287-21grep19:18:090
409179599301,10cyclictest4098437-21latency_hist19:36:140
409179999293,5cyclictest171rcu_preempt00:18:122
4091796992921,5cyclictest140150-21ssh00:43:491
409179599292,9cyclictest4153686-21grep21:38:090
409179599292,5cyclictest112667-21ld00:13:160
4091795992913,10cyclictest103335-21idleruntime00:03:080
409179599291,11cyclictest607-21dbus-daemon19:16:130
409179699281,9cyclictest11050irq/107-eth%d21:21:161
409179599289,16cyclictest43402-21sh23:03:060
409179599287,19cyclictest762-21in:imuxsock20:08:190
409179599286,17cyclictest0-21swapper/020:28:160
409179599282,7cyclictest139368-21ntpq00:43:170
409179599281,7cyclictest126111-21fschecks_time00:28:110
4091795992812,11cyclictest4187533-21/usr/sbin/munin22:13:180
409179599277,17cyclictest4130591-1kworker/0:2H+kblockd22:06:170
409179599274,8cyclictest1006-21mta-sts-daemon20:41:160
409179599271,8cyclictest111788-21systemd-journal23:11:140
409179999263,19cyclictest111788-21systemd-journal00:26:192
409179999261,4cyclictest171rcu_preempt23:08:232
409179599268,16cyclictest0-21swapper/000:18:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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