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2025-09-17 - 15:53
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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 Wed Sep 17, 2025 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32584214140,11sleep032585-21latency_hist19:10:020
3262399154131,14cyclictest319482sleep023:25:200
326239914372,33cyclictest14255-21http00:25:040
326239913480,43cyclictest11613-21fw_conntrack22:05:260
326239913069,20cyclictest18745-21apt-get22:36:250
326239912672,34cyclictest11909-21wget00:15:180
326239912662,51cyclictest8950irq/40-mmc119:55:020
326239912578,36cyclictest25258-21df20:50:170
326239912576,37cyclictest30262-21df21:10:210
326239912567,21cyclictest6232-21seq23:51:140
326239912480,33cyclictest6394-21/usr/sbin/munin21:45:110
326239912476,37cyclictest19584-21apt-get20:30:290
326239912377,35cyclictest27346-21find23:05:510
326239912375,37cyclictest500-21/usr/sbin/munin21:20:380
326239912276,36cyclictest4190-21irqstats21:35:310
326239912276,34cyclictest29025-21diskstats21:05:210
326239912264,46cyclictest13750-1kworker/0:0H20:15:350
326239912263,42cyclictest1424-21nginx22:52:270
326239912171,37cyclictest20722-21diskstats22:40:250
326239912086,24cyclictest1491-21/usr/sbin/munin21:25:150
326239912085,23cyclictest9264-21chrt21:55:360
326239912072,37cyclictest12651-21wget22:10:130
326239912072,36cyclictest25702-21df23:00:230
326239912072,35cyclictest17621-21/usr/sbin/munin22:30:510
326239912067,18cyclictest8159-21ntpq19:40:380
326239911975,34cyclictest27991-21/usr/sbin/munin23:10:340
326239911972,36cyclictest5673-21ntp_states19:30:400
326239911972,36cyclictest24974-21cat20:50:030
326239911970,37cyclictest14683-21gpgconf00:25:160
326239911885,23cyclictest1356-21snmpd23:20:320
326239911885,23cyclictest1356-21snmpd22:17:050
326239911884,24cyclictest530-21/usr/sbin/munin23:30:300
326239911874,33cyclictest4487-21/usr/sbin/munin19:25:470
326239911873,34cyclictest800-21avahi-daemon19:47:430
326239911871,37cyclictest2763-21/usr/sbin/munin21:30:170
326239911870,39cyclictest8200-21aten_r7power_vo00:00:180
326239911870,38cyclictest8005-21sed00:00:050
326239911869,38cyclictest16373-21ntp_offset00:30:410
326239911787,19cyclictest3116-21memory19:20:320
326239911781,24cyclictest29452-21diskstats23:15:290
326239911776,30cyclictest3159-21cut23:40:200
326239911773,35cyclictest626-21sshd19:10:390
326239911671,35cyclictest5157-21seq23:47:400
326239911669,34cyclictest26516-21df_inode20:55:220
326239911668,36cyclictest12976-21df_inode20:00:210
326239911573,29cyclictest2430-21runrttasks19:18:040
326239911570,34cyclictest11880-21ntpq19:55:360
326239911568,36cyclictest5351-21df21:40:210
326239911483,21cyclictest27810-21fw_forwarded_lo21:00:260
326239911481,23cyclictest21917-21grep22:45:180
326239911479,25cyclictest1356-21snmpd00:05:220
326239911472,33cyclictest16775-21ntp_states22:25:440
326239911468,36cyclictest24458-21diskstats22:55:260
326239911379,24cyclictest17885-21cat00:35:270
326239911280,21cyclictest2054-21fw_conntrack23:35:270
326239911276,25cyclictest10425-21/usr/sbin/munin22:00:300
326239911275,19cyclictest31703-21sshd21:15:400
326239911268,32cyclictest19586-21munin-run20:30:030
326239911265,35cyclictest8219-21grep21:50:480
326239911177,23cyclictest1327-21lldpd00:15:020
326239911077,22cyclictest6910-21ntp_states19:35:370
326239911076,22cyclictest15176-21aten_r7power_en22:20:140
326239911075,24cyclictest21732-21ntp_states20:35:430
326239911075,24cyclictest14773-21aten_r7power_po20:10:100
326239910982,17cyclictest22989-21ntp_states20:40:400
326239910861,32cyclictest8950irq/40-mmc120:10:040
326239910675,22cyclictest17265-21aten_r7power_en20:20:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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