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2026-07-12 - 18:55
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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 792 highest latencies:
System rack7slot8.osadl.org (updated Sun Jul 12, 2026 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32373224132,54sleep00-21swapper/019:09:390
32480991747,144cyclictest1408-21nginx23:07:310
32480991679,116cyclictest17099-21apt-get20:17:060
32480991629,114cyclictest31781-21df23:20:190
32480991619,111cyclictest2154-21apt-get19:17:020
32480991618,111cyclictest13683-21apt-get00:17:070
32480991607,131cyclictest1305-21snmpd20:08:190
32480991606,22cyclictest6634-21apt-get21:47:090
32480991606,132cyclictest18743-21apt-get20:25:030
324809916040,90cyclictest10250irq/56-4a10000022:20:150
32480991598,132cyclictest19914-21/usr/sbin/munin20:26:330
324809915934,107cyclictest14476-21apt-get22:17:230
32480991577,98cyclictest801-21dbus-daemon00:10:200
324809915733,112cyclictest31079-21apt-get23:17:100
32480991567,109cyclictest21080-21cron22:40:010
324809915610,108cyclictest6772-21ntp_states19:35:410
32480991557,109cyclictest1305-21snmpd19:53:150
324809915546,91cyclictest10150irq/55-4a10000021:50:210
324809915526,88cyclictest801-21dbus-daemon00:10:050
324809915515,123cyclictest29307-21df_inode23:10:310
324809915513,121cyclictest9079-21cut00:00:070
32480991547,130cyclictest6649-21apt-get21:45:040
32480991547,126cyclictest24414-21df_inode20:45:210
32480991547,109cyclictest1276-21runrttasks00:24:400
324809915442,102cyclictest16875-21/usr/sbin/munin00:31:250
32480991536,127cyclictest23902-21runrttasks20:43:270
32480991529,121cyclictest9703-21wget21:55:150
32480991528,106cyclictest5139-21/usr/sbin/munin19:30:390
32480991528,102cyclictest2010-21node22:27:220
32480991527,124cyclictest1305-21snmpd20:13:200
32480991526,107cyclictest32438-21apt-get21:17:040
324809915236,105cyclictest4469-21runrttasks23:40:330
324809915216,115cyclictest15542-21wget00:25:150
324809915211,123cyclictest29302-21wget21:05:160
32480991518,106cyclictest24430-21sshd22:51:390
32480991517,88cyclictest12685-21mailstats22:05:470
32480991517,124cyclictest1305-21snmpd22:13:460
324809915115,115cyclictest1305-21snmpd00:38:400
32480991508,121cyclictest11361-21/usr/sbin/munin19:55:310
324809915035,103cyclictest21594-21ntpq22:40:370
324809915034,105cyclictest1408-21nginx21:03:230
324809915031,106cyclictest19679-21sshd22:33:400
32480991498,102cyclictest2043-21ntp_states23:30:400
324809914948,83cyclictest10150irq/55-4a10000022:00:120
324809914944,94cyclictest3881-21runrttasks23:38:530
324809914928,102cyclictest1305-21snmpd20:38:260
32480991487,101cyclictest7666-21wget19:40:120
324809914838,97cyclictest1408-21nginx23:27:440
324809914838,96cyclictest30528-21aten_r7power_vo21:10:140
324809914838,95cyclictest10250irq/56-4a10000022:58:330
324809914822,108cyclictest32620-21wget19:10:140
32480991478,97cyclictest5790-21ntp_states23:45:410
324809914747,92cyclictest2279-21awk21:25:450
324809914716,109cyclictest3039-21wget21:30:120
32480991468,95cyclictest2852-21df19:20:180
32480991466,124cyclictest8992-21wget19:45:150
32480991466,101cyclictest27554-21runrttasks20:57:550
324809914420,109cyclictest23454-21sshd22:48:560
324809914418,113cyclictest7048-21ntp_states23:50:510
324809914343,87cyclictest26972-21runrttasks23:02:010
324809914337,84cyclictest9166-40logrotate00:00:130
32480991429,119cyclictest4861-21users21:35:510
32480991428,94cyclictest25685-21fw_forwarded_lo20:50:270
324809914225,99cyclictest805-21rs:main0
32480991416,122cyclictest13736-21latency_hist20:05:020
32480991407,114cyclictest1575-21seq21:24:300
324809914049,74cyclictest3650irq/20-4900000020:30:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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