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2025-11-30 - 04:24
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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 highest latencies:
System rack7slot8.osadl.org (updated Sun Nov 30, 2025 01:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4885220128,57sleep04889-21irqstats19:05:250
57899912335,34cyclictest6067-21df19:10:200
57899911733,62cyclictest14069-21seq21:48:340
57899911731,35cyclictest5029-21seq23:16:380
57899911369,34cyclictest2061-21df_inode23:05:320
57899911165,36cyclictest26108-21/usr/sbin/munin22:35:310
57899911152,40cyclictest10290-21sshd23:38:480
57899911139,50cyclictest15573-21ls00:00:090
57899910956,35cyclictest3650irq/20-4900000019:37:110
57899910863,35cyclictest6868-21wget23:25:160
57899910748,38cyclictest32631-21cpuspeed20:55:180
57899910746,42cyclictest1424-21nginx19:42:480
57899910729,40cyclictest1356-21snmpd19:27:350
57899910643,44cyclictest11706-21munin-plugin-st23:45:010
57899910637,34cyclictest21275-21irqstats22:15:310
57899910632,37cyclictest1336-21runrttasks23:53:580
57899910625,24cyclictest6188-21apt-get21:18:180
57899910559,37cyclictest16744-21sendmail22:00:010
57899910535,34cyclictest4678-21seq21:13:050
57899910531,37cyclictest1356-21snmpd20:17:480
57899910473,20cyclictest18876-21runrttasks00:12:110
57899910464,30cyclictest1700-21sendmail-mta21:34:020
57899910454,32cyclictest12814-21http21:45:050
57899910439,44cyclictest1424-21nginx19:22:000
57899910366,27cyclictest8167-21fw_forwarded_lo21:25:260
57899910331,35cyclictest1356-21snmpd00:23:580
57899910328,24cyclictest17629-21memory22:01:040
57899910271,21cyclictest760-21systemd-journal19:50:000
57899910240,48cyclictest1356-21snmpd19:17:340
57899910236,50cyclictest10250irq/56-4a10000021:08:150
57899910229,34cyclictest30374-21ntp_states20:45:440
57899910169,22cyclictest24941-21/usr/sbin/munin00:35:500
57899910162,30cyclictest1801-21node19:32:030
57899910137,46cyclictest1356-21snmpd00:00:130
57899910135,34cyclictest18613-21munin-run20:00:010
57899910130,35cyclictest25193-21diskstats20:25:220
57899910128,19cyclictest31616-21ntp_states20:50:440
57899910056,32cyclictest24109-21ntpq20:20:380
57899910040,46cyclictest1356-21snmpd22:33:280
5789999955,33cyclictest29029-21irqstats20:40:320
5789999953,35cyclictest349-21df_inode23:00:220
5789999953,35cyclictest1497-21df_inode21:00:220
5789999943,45cyclictest27839-21diskstats22:40:260
5789999935,30cyclictest19935-21/usr/sbin/munin00:15:480
5789999932,48cyclictest19041-21seq20:00:310
5789999869,22cyclictest14640-21iwlist21:50:300
5789999867,22cyclictest21502-21sshd20:10:310
5789999865,23cyclictest20858-21latency_hist22:15:030
5789999850,37cyclictest31353-21runrttasks22:55:120
5789999839,38cyclictest16241-21/usr/sbin/munin19:50:220
5789999829,32cyclictest6295-21sshd23:21:320
5789999753,35cyclictest22075-21df_inode00:25:320
5789999735,22cyclictest20386-21ntp_states20:05:450
5789999733,46cyclictest30198-21wget22:50:160
5789999730,32cyclictest26339-21wget20:30:160
5789999726,53cyclictest29210-21awk22:45:360
5789999667,20cyclictest8830-21runrttasks23:31:570
5789999665,20cyclictest23792-21runrttasks00:31:290
5789999636,20cyclictest6991-21irqstats21:20:320
5789999549,35cyclictest22806-21sendmail_mailtr22:20:460
5789999534,22cyclictest17980-21munin-plugin-st00:10:010
5789999461,23cyclictest23819-21runrttasks22:25:400
5789999331,26cyclictest10250irq/56-4a10000020:38:010
5789999330,44cyclictest18493-21/usr/sbin/munin22:05:130
5789999262,21cyclictest11168-21runrttasks21:36:560
5789999234,40cyclictest3388-21memory23:10:360
5789999231,46cyclictest13021-21latency_hist23:50:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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