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2025-12-20 - 06:36
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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 rackaslot8.osadl.org (updated Sat Dec 20, 2025 00:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
253972317291,17sleep10-21swapper/119:08:551
252422316289,17sleep20-21swapper/219:06:552
252552277246,21sleep00-21swapper/019:07:040
233062261227,22sleep30-21swapper/319:05:023
15602590,0sleep00-21swapper/020:35:210
216342570,0sleep10-21swapper/122:35:141
203282530,0sleep10-21swapper/123:45:001
123512160,0sleep00-21swapper/019:50:120
246862100,1sleep024662-21munin-run23:55:000
8699290,0sleep00-21swapper/019:40:190
255899994,3cyclictest275-21systemd-journal22:50:010
14340290,0sleep00-21swapper/019:55:120
255999983,3cyclictest275-21systemd-journal21:42:573
255959986,2cyclictest28-21ksoftirqd/223:10:002
255919980,1cyclictest275-21systemd-journal00:22:521
255899987,1cyclictest12-21ksoftirqd/000:00:020
12750280,1sleep20-21swapper/219:50:152
255999973,3cyclictest275-21systemd-journal22:06:223
255999973,3cyclictest15758-21cron23:39:563
255999973,3cyclictest15758-21cron23:39:553
255999970,3cyclictest6704-21/usr/sbin/munin20:50:123
255959973,3cyclictest275-21systemd-journal22:36:232
255959972,3cyclictest501-21in:imuxsock19:20:012
255919975,1cyclictest11510-21sshd19:45:591
255919973,3cyclictest31685-21dump-pmu-power00:09:591
255919973,3cyclictest275-21systemd-journal21:01:261
255919972,3cyclictest18008-21awk23:40:001
255919972,3cyclictest18008-21awk23:40:001
255899975,1cyclictest12-21ksoftirqd/021:10:000
255899975,1cyclictest12-21ksoftirqd/019:15:010
255899973,3cyclictest275-21systemd-journal00:10:000
255899972,4cyclictest12-21ksoftirqd/020:21:060
255899972,3cyclictest3720-21turbostat00:20:000
255899970,4cyclictest23371-21turbostat22:40:000
255999966,0cyclictest0-21swapper/323:55:173
255999964,1cyclictest31808-21grep22:55:223
255999963,2cyclictest8038-21if_err_enp4s019:40:153
255999963,2cyclictest658-21snmpd22:31:453
255999963,2cyclictest4253-21latency_hist20:45:003
255999963,2cyclictest34-21ksoftirqd/319:45:023
255999963,2cyclictest275-21systemd-journal00:28:173
255999963,2cyclictest17506-21taskset21:10:273
255999963,2cyclictest13486-21awk22:15:183
255999963,2cyclictest13236-21latency_hist21:05:003
255999963,2cyclictest1-21systemd19:10:113
255999963,1cyclictest24489-21sshd23:53:063
255999962,3cyclictest674-21lldpd20:59:483
255999962,3cyclictest658-21snmpd23:16:213
255999962,3cyclictest658-21snmpd23:02:363
255999962,3cyclictest658-21snmpd22:54:593
255999962,3cyclictest658-21snmpd22:37:123
255999962,3cyclictest658-21snmpd22:26:023
255999962,3cyclictest658-21snmpd22:20:313
255999962,3cyclictest658-21snmpd21:51:013
255999962,3cyclictest658-21snmpd21:48:013
255999962,3cyclictest658-21snmpd21:24:543
255999962,3cyclictest658-21snmpd20:30:583
255999962,3cyclictest658-21snmpd20:17:043
255999962,3cyclictest658-21snmpd19:57:513
255999962,3cyclictest658-21snmpd00:35:053
255999962,3cyclictest658-21snmpd00:05:433
255999962,3cyclictest504-21dbus-daemon21:20:013
255999962,3cyclictest4901-21netstat00:20:173
255999962,3cyclictest4218-21cat21:55:153
255999962,3cyclictest3593-21cat19:30:153
255999962,3cyclictest275-21systemd-journal00:01:363
255999962,3cyclictest24017-21df22:40:153
255999962,3cyclictest14470-21cat23:30:163
255999962,3cyclictest10609-21sh22:10:143
255999962,3cyclictest0-21swapper/323:12:263
255999960,5cyclictest3081-21timerandwakeup00:15:193
255999960,2cyclictest13559-21grep19:50:193
255959966,0cyclictest0-21swapper/200:15:132
255959964,1cyclictest11539-21/usr/sbin/munin23:25:152
255959963,2cyclictest9046-21cron23:20:012
255959963,2cyclictest504-21dbus-daemon20:56:402
255959963,2cyclictest24657-21cat21:30:002
255959962,3cyclictest658-21snmpd23:56:552
255959962,3cyclictest658-21snmpd23:12:452
255959962,3cyclictest658-21snmpd22:40:112
255959962,3cyclictest658-21snmpd22:19:292
255959962,3cyclictest658-21snmpd22:08:172
255959962,3cyclictest658-21snmpd22:00:282
255959962,3cyclictest658-21snmpd21:51:312
255959962,3cyclictest658-21snmpd21:20:002
255959962,3cyclictest658-21snmpd21:06:482
255959962,3cyclictest658-21snmpd20:40:492
255959962,3cyclictest658-21snmpd20:25:242
255959962,3cyclictest658-21snmpd19:45:392
255959962,3cyclictest658-21snmpd19:40:302
255959962,3cyclictest658-21snmpd19:25:082
255959962,3cyclictest658-21snmpd19:22:522
255959962,3cyclictest658-21snmpd00:37:262
255959962,3cyclictest658-21snmpd00:32:022
255959962,3cyclictest658-21snmpd00:07:342
255959962,3cyclictest32651-21cat23:00:132
255959962,3cyclictest31718-21cat21:45:132
255959962,3cyclictest29875-21sed21:40:122
255959962,3cyclictest28611-21expr22:50:132
255959962,3cyclictest275-21systemd-journal22:31:482
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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