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2025-12-14 - 21:16
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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 rack7slot8.osadl.org (updated Sun Dec 14, 2025 01:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8518217427,118sleep00-21swapper/019:05:400
96389914561,32cyclictest23179-21apt-get22:10:220
96389914078,44cyclictest1368-21nginx22:19:360
96389913659,21cyclictest4577-21node00:40:050
96389913562,52cyclictest29307-21chrt20:25:010
96389913561,35cyclictest1295-21snmpd19:34:070
96389913560,36cyclictest32730-21fw_conntrack22:46:450
96389913462,34cyclictest24717-21memory00:21:470
96389913460,35cyclictest3504-21df_inode20:51:360
96389913358,35cyclictest17082-21runrttasks23:55:030
96389913263,26cyclictest4801-21seq20:55:200
96389913257,20cyclictest2729-21df_inode22:56:380
96389913254,40cyclictest25945-21memory00:26:470
96389913168,44cyclictest1295-21snmpd23:27:030
96389913157,36cyclictest4075-21irqstats23:01:490
96389913152,37cyclictest11380-21df23:31:380
96389913074,39cyclictest7615-21chrt21:06:380
96389913056,36cyclictest11622-21grep21:21:580
96389913054,36cyclictest813-21rs:main0
96389912961,20cyclictest18404-21cat00:00:090
96389912958,53cyclictest1811-21munin-plugin-st20:45:010
96389912952,37cyclictest1490-21df_inode22:51:360
96389912863,23cyclictest16251-21df21:41:340
96389912852,37cyclictest19932-21df21:56:340
96389912770,42cyclictest18726-21diskstats21:51:400
96389912757,50cyclictest17187-21sshd21:45:370
96389912662,47cyclictest16431-21/usr/sbin/munin19:36:310
96389912655,34cyclictest13784-21df_inode21:31:370
96389912654,35cyclictest12639-21fw_conntrack23:36:420
96389912654,20cyclictest14188-21diskstats19:26:390
96389912561,46cyclictest13977-21memory23:41:520
96389912561,46cyclictest1368-21nginx20:14:170
96389912559,47cyclictest754-21systemd-journal00:14:470
96389912469,39cyclictest10826-21latency_hist19:15:020
96389912456,49cyclictest32055-21wget20:36:320
96389912452,35cyclictest754-21systemd-journal00:01:420
96389912357,49cyclictest20847-21runrttasks19:50:470
96389912353,50cyclictest7228-21grep23:15:030
96389912352,34cyclictest1295-21snmpd00:05:070
96389912350,35cyclictest5249-21fw_forwarded_lo23:06:450
96389912266,37cyclictest23005-21sshd22:08:370
96389912255,28cyclictest21306-21memory22:01:520
96389912254,17cyclictest29683-21seq22:34:380
96389912253,34cyclictest24923-21irqstats20:06:460
96389912251,32cyclictest12755-21chrt19:21:290
96389912249,36cyclictest8934-21diskstats23:21:390
96389912247,39cyclictest26637-21runrttasks22:21:490
96389912245,61cyclictest311042sleep020:31:490
96389912161,27cyclictest754-21systemd-journal00:16:070
96389912157,31cyclictest813-21rs:main0
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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