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2025-12-07 - 11:32
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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 Sun Dec 07, 2025 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
195371299756,15cyclictest2054818-21rm22:25:080
1953712996511,34cyclictest0-21swapper/000:08:080
1953712996340,4cyclictest0-21swapper/019:18:110
1953712995627,3cyclictest0-21swapper/021:41:140
195371299512,28cyclictest0-21swapper/023:27:360
1953713995027,6cyclictest11050irq/107-eth%d00:06:151
1953714994626,13cyclictest111788-21systemd-journal00:07:432
1953713994123,16cyclictest2000467-21fschecks_count21:23:061
195371399392,17cyclictest1974038-21apt-get20:16:131
1953712993815,4cyclictest0-21swapper/021:49:200
1953712993815,4cyclictest0-21swapper/021:49:200
1953712993511,19cyclictest2029781-21cat21:56:110
1953712993420,11cyclictest2107967-21sendmail-msp23:35:070
1953712993419,11cyclictest0-21swapper/019:16:110
1953713993325,7cyclictest2166180-21fschecks_count00:33:171
195371299322,23cyclictest2108333-21latency_hist23:26:110
195371499311,11cyclictest111788-21systemd-journal23:26:162
195371299311,2cyclictest0-21swapper/022:38:130
195371299311,22cyclictest2070793-21/usr/sbin/munin22:43:120
1953713992918,5cyclictest2055447-21sendmail-msp22:26:161
195371399282,3cyclictest171rcu_preempt20:21:131
195371399282,3cyclictest171rcu_preempt20:21:131
1953713992819,1cyclictest11050irq/107-eth%d21:36:151
1953712992817,4cyclictest0-21swapper/000:41:110
195371499269,10cyclictest2056339-21ssh22:26:482
195371299266,4cyclictest0-21swapper/023:03:130
1953712992619,2cyclictest2131993-21needreboot23:53:120
195371499245,16cyclictest2158975-21ssh00:23:122
1953714992417,6cyclictest1005-21mta-sts-daemon21:09:012
195371399243,13cyclictest2113726-21sh23:32:501
195371299244,3cyclictest171rcu_preempt22:58:070
195371299241,4cyclictest1984639-21/usr/sbin/munin20:48:200
195371299241,4cyclictest1984639-21/usr/sbin/munin20:48:200
195371299241,1cyclictest0-21swapper/000:33:180
195371299241,16cyclictest259-21jbd2/mmcblk0p2-821:33:140
195371299240,5cyclictest2055447-21sendmail-msp22:29:000
195371299240,19cyclictest0-21swapper/023:58:540
195371599237,7cyclictest0-21swapper/300:08:173
195371499232,13cyclictest111788-21systemd-journal20:26:362
195371299239,3cyclictest2036086-21ntp_states22:03:140
112699230,2rtkit-daemon1006-21mta-sts-daemon19:53:390
195371399224,4cyclictest0-21swapper/100:03:091
195371399223,10cyclictest11050irq/107-eth%d22:25:081
1953713992217,4cyclictest1008-21mta-sts-daemon22:48:121
1953713992216,3cyclictest2107934-21apt-get23:26:151
1953713992212,7cyclictest1006-21mta-sts-daemon21:49:521
1953713992212,7cyclictest1006-21mta-sts-daemon21:49:521
195371299228,1cyclictest0-21swapper/023:18:150
195371299222,13cyclictest0-21swapper/023:43:100
195371299220,21cyclictest2094838-21/usr/sbin/munin23:11:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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