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2026-05-17 - 01:27
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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 Sat May 16, 2026 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1732221432,49sleep00-21swapper/019:06:390
22109913143,33cyclictest11631-21apt-get21:57:100
22109912661,46cyclictest10250irq/56-4a10000021:26:490
22109912564,42cyclictest1408-21nginx20:46:020
22109912561,44cyclictest754-21systemd-journal00:27:550
22109911946,53cyclictest28422-21chrt22:58:370
22109911743,34cyclictest16578-21grep00:20:020
22109911651,47cyclictest24976-21apt-get20:42:090
22109911527,33cyclictest6961-21df21:35:170
22109911347,47cyclictest1-21systemd00:09:430
22109911347,45cyclictest28201-21fw_conntrack20:50:240
22109911240,36cyclictest16761-21ntp_states20:05:390
22109911238,22cyclictest21233-21ntp_states00:35:420
22109911237,35cyclictest766-21/usr/sbin/munin21:10:280
22109911171,21cyclictest15136-21/usr/sbin/munin20:00:260
22109911166,36cyclictest18808-21apt-key22:20:220
22109911164,36cyclictest6870-21df_inode23:40:200
22109911151,46cyclictest10250irq/56-4a10000021:17:510
22109911064,36cyclictest754-21systemd-journal22:50:190
22109911038,20cyclictest21578-21diskstats20:25:220
22109911036,35cyclictest5660-21diskstats23:35:390
22109911036,23cyclictest11515-21sendmail00:00:020
22109910967,33cyclictest3899-21ntpq19:15:360
22109910954,37cyclictest19832-21fw_conntrack00:30:270
22109910944,22cyclictest30862-21ntp_states21:00:410
22109910940,49cyclictest19242-21ntp_states20:15:400
22109910940,48cyclictest14867-21runrttasks22:05:270
22109910844,50cyclictest23798-21wget22:40:120
22109910837,20cyclictest10038-21/usr/sbin/munin19:40:280
22109910836,18cyclictest16085-21diskstats22:10:260
22109910835,37cyclictest17873-21apt-get22:17:090
22109910764,33cyclictest4370-21chrt23:30:480
22109910762,33cyclictest1305-21snmpd23:11:210
22109910664,31cyclictest371-21ntpq23:15:390
22109910646,42cyclictest0-21swapper/023:50:230
22109910644,20cyclictest15009-21munin-run20:00:010
22109910637,49cyclictest20033-21wget22:25:120
22109910635,32cyclictest1305-21snmpd22:01:160
22109910634,34cyclictest1305-21snmpd21:51:120
22109910626,22cyclictest12139-21apt-get19:52:070
22109910624,31cyclictest30158-21df23:05:180
22109910575,21cyclictest5099-21runrttasks19:20:290
22109910538,33cyclictest12008-21sshd19:48:560
22109910361,32cyclictest24978-21/usr/sbin/munin22:45:140
22109910352,32cyclictest1305-21snmpd23:21:350
22109910337,48cyclictest754-21systemd-journal22:40:010
22109910269,22cyclictest32110-21seq21:05:400
22109910241,20cyclictest3660-21users21:20:490
22109910233,35cyclictest2477-21df19:10:170
22109910172,20cyclictest24018-21cpuspeed20:35:150
22109910163,29cyclictest6648-21cron21:35:000
22109910155,35cyclictest21298-21wget22:30:120
22109910151,39cyclictest22795-21df20:30:170
22109910147,35cyclictest1305-21snmpd00:22:210
22109910145,42cyclictest30341-21munin-run21:00:030
22109910141,27cyclictest3650irq/20-4900000023:25:260
22109910133,49cyclictest10395-21munin-run21:50:020
22109910055,34cyclictest6545-21/usr/sbin/munin19:25:430
22109910044,37cyclictest7485-21diskstats19:30:200
22109910033,34cyclictest8728-21diskstats19:35:220
2210999970,20cyclictest18636-21runrttasks20:14:090
2210999953,35cyclictest29041-21memory23:00:340
2210999930,50cyclictest20158-21wget20:20:120
2210999929,36cyclictest1305-21snmpd23:46:430
2210999834,34cyclictest8414-21ntp_states21:40:390
2210999762,25cyclictest801-21dbus-daemon00:15:010
2210999761,26cyclictest1608-21ntpd00:00:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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