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2026-09-19 - 12:32
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 100 highest latencies:
System rack5slot2.osadl.org (updated Sat Sep 19, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
321802202186,12sleep10-21swapper/119:07:401
321112201186,11sleep30-21swapper/319:06:443
320962183166,12sleep00-21swapper/019:06:330
32208211699,12sleep20-21swapper/219:08:002
273202480,0sleep10-21swapper/100:10:161
260612470,0sleep30-21swapper/322:46:553
241602470,0sleep10-21swapper/122:13:261
282552440,0sleep228258-21idleruntime22:15:162
267872430,0sleep20-21swapper/221:58:152
3253599100,1cyclictest6882-21irqstats23:10:172
3253599100,1cyclictest0-21swapper/200:35:132
5670290,0sleep10-21swapper/123:42:501
325359990,1cyclictest0-21swapper/220:55:122
325359982,1cyclictest2206-21ls22:35:122
325359981,1cyclictest6073-21sed00:00:002
325359981,1cyclictest13411-21cat19:35:002
325359980,1cyclictest32164-21ssh23:40:122
325359980,1cyclictest26586-21apt22:15:002
325359980,1cyclictest205-21systemd-journal20:19:592
325359980,1cyclictest16809-21munin-run22:10:002
325359980,1cyclictest1216-21apt-get22:35:002
325359980,1cyclictest10876-21munin-run20:35:002
325319980,2cyclictest0-21swapper/120:55:111
325269980,4cyclictest28211-21perf21:10:000
325409970,7cyclictest1587-21ssh22:18:213
325409970,2cyclictest18808-21ssh00:39:433
325359972,1cyclictest13863-21ssh23:46:492
325359972,0cyclictest20508-21rm22:27:532
325359971,1cyclictest500-21cron20:40:002
325359971,1cyclictest26653-21fschecks_time00:10:142
325359971,1cyclictest23051-21basename00:25:122
325359970,1cyclictest9888-21cat19:25:172
325359970,1cyclictest973-21munin-run20:15:002
325359970,1cyclictest9292-21df22:55:122
325359970,1cyclictest8337-21users21:15:202
325359970,1cyclictest6733-21wc00:00:112
325359970,1cyclictest6154-21/usr/sbin/munin19:20:122
325359970,1cyclictest5228-21df_inode22:20:132
325359970,1cyclictest4221-21diskstats20:20:122
325359970,1cyclictest4157-21perl19:15:132
325359970,1cyclictest3529-21fschecks_time23:25:132
325359970,1cyclictest3310-21ssh00:15:132
325359970,1cyclictest326-21ntp_states22:50:182
325359970,1cyclictest30903-21cron20:10:012
325359970,1cyclictest25730-21munin-run21:05:002
325359970,1cyclictest25424-21latency_hist00:10:012
325359970,1cyclictest23481-21irqstats23:35:172
325359970,1cyclictest23292-21munin-run19:55:002
325359970,1cyclictest16897-21sed19:40:142
325359970,1cyclictest1638-21irqstats21:45:162
325359970,1cyclictest16378-21rm21:20:132
325359970,1cyclictest14404-21irqstats21:35:172
325359970,1cyclictest14201-21memory00:20:152
325359970,1cyclictest14143-21diskstats19:35:162
325359970,1cyclictest1195-21hddtemp_smartct00:30:132
325359970,1cyclictest10372-21ssh21:50:122
325359970,0cyclictest0-21swapper/220:45:122
325319971,1cyclictest0-21swapper/123:50:121
325319971,1cyclictest0-21swapper/100:30:101
325319970,1cyclictest0-21swapper/100:35:131
325269973,4cyclictest30921-21munin-run20:10:000
325269973,4cyclictest10885-21perf19:30:010
325409960,6cyclictest0-21swapper/323:39:443
325409960,6cyclictest0-21swapper/321:50:033
325409960,6cyclictest0-21swapper/321:46:043
325409960,6cyclictest0-21swapper/321:40:523
325409960,6cyclictest0-21swapper/321:26:353
325409960,6cyclictest0-21swapper/300:31:393
325409960,6cyclictest0-21swapper/300:20:243
325409960,6cyclictest0-21swapper/300:13:043
325359962,2cyclictest0-21swapper/222:00:112
325359961,1cyclictest18617-21basename19:45:112
325359960,1cyclictest6220-21aten2_r5power_p20:25:102
325359960,1cyclictest489-21cut19:10:122
325359960,1cyclictest3525-21egrep21:30:112
325359960,1cyclictest29485-21perl21:10:132
325359960,1cyclictest28139-21ssh23:05:022
325359960,1cyclictest26202-21/usr/sbin/munin20:00:132
325359960,1cyclictest25953-21/usr/sbin/munin21:05:142
325359960,1cyclictest25827-21ssh21:25:062
325359960,1cyclictest25425-21ssh23:20:132
325359960,1cyclictest23826-21tr19:55:112
325359960,1cyclictest23367-21expr21:40:132
325359960,1cyclictest21362-21ssh22:45:052
325359960,1cyclictest19053-21diskstats20:50:122
325359960,1cyclictest18529-21/usr/sbin/munin23:00:112
325359960,1cyclictest16097-21df_inode23:15:122
325359960,1cyclictest14305-21tune2fs20:40:122
325359960,1cyclictest12457-21ssh23:30:082
325359960,1cyclictest12366-21df_inode22:40:152
325359960,1cyclictest0-21swapper/223:50:112
325319961,1cyclictest265292chrt22:47:131
325319960,2cyclictest0-21swapper/122:05:121
325319960,1cyclictest0-21swapper/122:35:111
325319960,1cyclictest0-21swapper/121:45:001
325319960,1cyclictest0-21swapper/120:45:131
325319960,1cyclictest0-21swapper/119:55:011
325269962,4cyclictest5938-21munin-run20:25:000
325269960,3cyclictest15871-21munin-run19:40:000
325409955,0cyclictest0-21swapper/323:44:373
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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