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2026-07-16 - 21:13
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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 Thu Jul 16, 2026 02:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31020212750,11sleep031017-21ntp_states19:05:330
318209918412,148cyclictest2010-21node21:31:350
31820991698,117cyclictest1408-21nginx20:36:220
31820991689,16cyclictest5456-21diskstats21:40:220
31820991647,19cyclictest29107-21df21:05:170
31820991647,14cyclictest7611-21apt-get21:52:090
31820991629,23cyclictest26472-21hostname20:55:120
318209916134,107cyclictest11600-21sshd19:55:450
31820991609,23cyclictest754-21systemd-journal20:19:450
318209915932,88cyclictest7129-21seq21:45:590
31820991576,15cyclictest6849-21apt-get19:42:100
318209915735,93cyclictest10250irq/56-4a10000022:15:120
318209915734,104cyclictest15815-21chrt22:20:220
318209915719,119cyclictest8563-21wget00:00:150
318209915651,94cyclictest15100-21iwlist20:10:280
318209915639,106cyclictest18434-21grep22:30:320
318209915633,106cyclictest10250irq/56-4a10000022:50:590
318209915627,110cyclictest2118-21wget19:20:140
31820991558,18cyclictest4197-21diskstats21:35:240
31820991548,17cyclictest16624-21diskstats00:30:230
31820991537,21cyclictest19623-21irqstats22:35:310
31820991536,16cyclictest13416-21apt-get00:21:080
31820991536,15cyclictest31594-21df21:15:180
31820991535,18cyclictest19704-21apt-get20:32:080
318209915324,108cyclictest1305-21snmpd22:56:260
318209915322,112cyclictest1408-21nginx21:56:500
318209915313,15cyclictest1955-21wget23:35:150
318209915247,94cyclictest11000-21runrttasks22:00:400
318209915236,104cyclictest6841-21cron19:40:010
318209915232,108cyclictest10159-21chrt19:50:330
318209915226,106cyclictest7296-21wget23:55:130
318209915218,15cyclictest10250irq/56-4a10000021:21:310
318209915123,115cyclictest11971-21wget22:05:150
31820991507,120cyclictest30436-21grep23:20:020
31820991506,21cyclictest3661-21dpkg23:40:280
318209915041,97cyclictest801-21dbus-daemon20:09:590
318209915018,111cyclictest1276-21runrttasks23:00:150
31820991498,17cyclictest1896-21ntp_states21:25:420
31820991496,17cyclictest31924-21wget23:25:140
318209914923,110cyclictest30626-21runrttasks23:20:130
31820991488,15cyclictest28242-21df23:10:170
318209914842,94cyclictest13052-21runrttasks00:17:050
318209914839,96cyclictest12376-21wget20:00:130
318209914829,103cyclictest10250irq/56-4a10000019:26:100
318209914823,106cyclictest21854-21wget22:45:140
318209914635,100cyclictest1439-21seq23:32:320
318209914631,103cyclictest17054-21/usr/sbin/munin22:25:220
318209914625,108cyclictest754-21systemd-journal00:35:090
318209914619,17cyclictest1305-21snmpd00:06:450
318209914550,84cyclictest6358-21awk23:50:360
318209914532,101cyclictest24530-21sshd20:45:460
318209914531,104cyclictest27013-21df_inode23:05:200
318209914531,104cyclictest15692-21sendmail_mailst00:25:460
318209914515,13cyclictest30192-21grep21:10:120
318209914511,16cyclictest0-21swapper/019:13:440
31820991447,19cyclictest1305-21snmpd23:46:390
31820991447,108cyclictest1276-21runrttasks20:23:330
318209914441,91cyclictest25491-21runrttasks20:50:320
31820991437,117cyclictest12158-21latency_hist00:15:020
31820991437,115cyclictest1868-21cut19:20:010
318209914326,107cyclictest8605-21/usr/sbin/munin19:45:480
31820991417,15cyclictest27734-21wget21:00:110
318209914110,22cyclictest22940-21fw_forwarded_lo20:40:270
31820991407,14cyclictest4877-21ntp_states19:30:410
318209914025,105cyclictest18783-21diskstats20:25:210
318209913936,91cyclictest20605-21aten_r7power_cu22:40:130
318209913935,93cyclictest13609-21find22:10:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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