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2026-09-06 - 10:47
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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 Sun Sep 06, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
59222306275,21sleep10-21swapper/119:07:511
59232271239,21sleep20-21swapper/219:07:522
59362266235,20sleep00-21swapper/019:08:020
60122261231,20sleep30-21swapper/319:09:013
317912600,0sleep30-21swapper/323:46:263
228132580,0sleep30-21swapper/322:04:403
82342570,0sleep30-21swapper/300:30:313
19162560,0sleep20-21swapper/221:51:212
261882540,0sleep20-21swapper/200:22:212
196242530,0sleep00-21swapper/019:35:170
198962520,0sleep30-21swapper/322:40:593
44112190,0sleep10-21swapper/121:14:361
41792170,0sleep00-21swapper/000:29:000
96492150,0sleep30-21swapper/321:55:553
45602150,0sleep10-21swapper/122:32:041
45272150,0sleep10-21swapper/123:50:131
58602140,0sleep30-21swapper/321:54:233
4412140,0sleep30-21swapper/323:08:343
621299117,3cyclictest15221-21snmpd21:31:503
620199104,3cyclictest7529-21munin-run22:15:010
62109992,1cyclictest141rcu_preempt00:15:012
62059996,1cyclictest15135-21diskmemload22:57:581
28683290,0sleep00-21swapper/000:24:150
62129987,1cyclictest34-21ksoftirqd/322:20:013
62109984,3cyclictest504-21dbus-daemon23:23:552
62109984,3cyclictest275-21systemd-journal21:07:362
62109984,3cyclictest275-21systemd-journal20:40:012
62019986,2cyclictest12-21ksoftirqd/019:20:010
62019984,1cyclictest4809-21awk00:10:010
62019980,7cyclictest3378-21ssh22:31:090
62019980,7cyclictest29291-21ssh23:05:480
3431280,0sleep10-21swapper/100:28:241
24774280,0sleep20-21swapper/222:25:132
15598280,0sleep00-21swapper/023:36:460
62129975,1cyclictest34-21ksoftirqd/323:00:003
62129974,2cyclictest504-21dbus-daemon22:55:003
62129973,3cyclictest275-21systemd-journal19:13:313
62129973,3cyclictest24249-21cat19:45:173
62129973,2cyclictest275-21systemd-journal20:25:013
62129973,2cyclictest275-21systemd-journal19:40:003
62109974,2cyclictest504-21dbus-daemon22:00:012
62109974,2cyclictest275-21systemd-journal23:54:552
62109973,3cyclictest504-21dbus-daemon22:50:002
62109973,3cyclictest275-21systemd-journal19:36:562
62059974,2cyclictest501-21in:imuxsock20:20:011
62059974,2cyclictest17626-21cron20:45:011
62019975,2cyclictest12-21ksoftirqd/023:00:000
62019973,3cyclictest275-21systemd-journal00:39:230
62019973,1cyclictest141rcu_preempt23:20:000
62019973,1cyclictest0-21swapper/023:43:180
30816270,0sleep30-21swapper/322:09:243
2202270,0sleep30-21swapper/300:08:003
15902270,0sleep00-21swapper/023:56:230
10709270,0sleep10-21swapper/120:27:191
9006260,0sleep00-21swapper/021:36:050
62129966,0cyclictest0-21swapper/323:25:323
62129965,1cyclictest34-21ksoftirqd/323:20:003
62129965,1cyclictest0-21swapper/323:55:123
62129964,1cyclictest31457-21smart_sda20:00:183
62129963,2cyclictest9166-21snmpd00:26:213
62129963,2cyclictest275-21systemd-journal23:32:533
62129963,2cyclictest275-21systemd-journal20:22:033
62129963,2cyclictest275-21systemd-journal20:22:033
62129963,2cyclictest275-21systemd-journal19:37:423
62129963,2cyclictest27163-21ssh21:47:143
62129963,2cyclictest26969-21cat19:50:203
62129963,2cyclictest20304-21sh21:24:013
62129963,2cyclictest19894-21awk23:00:193
62129963,2cyclictest15647-21/usr/sbin/munin20:40:153
62129963,2cyclictest15623-21ssh23:36:473
62129963,2cyclictest13845-21ssh21:39:483
62129963,1cyclictest0-21swapper/321:16:173
62129963,1cyclictest0-21swapper/300:00:073
62129962,3cyclictest9730-21cat22:35:173
62129962,3cyclictest9166-21snmpd00:36:523
62129962,3cyclictest6159-21date00:10:163
62129962,3cyclictest25426-21irqstats22:25:163
62129962,3cyclictest16688-21cat22:20:143
62129962,3cyclictest15221-21snmpd23:50:033
62129962,3cyclictest15221-21snmpd22:31:303
62129962,3cyclictest15221-21snmpd21:09:523
62129962,3cyclictest15221-21snmpd20:56:523
62129962,3cyclictest15221-21snmpd20:06:033
62129962,1cyclictest0-21swapper/323:20:493
62129962,1cyclictest0-21swapper/323:11:413
62129962,1cyclictest0-21swapper/321:40:473
62129962,1cyclictest0-21swapper/321:26:243
62129961,3cyclictest275-21systemd-journal19:55:133
62129960,5cyclictest29943-21df_inode21:10:133
62129960,5cyclictest26603-21sed22:45:183
62129960,5cyclictest15273-21chrt20:38:413
62129960,5cyclictest1071-21smart_sda22:10:213
62129960,3cyclictest18872-21/usr/sbin/munin20:45:173
62129960,3cyclictest13817-21cat00:15:123
62129960,2cyclictest20981-21hddtemp_smartct23:40:133
62129960,0cyclictest0-21swapper/300:22:123
62109963,2cyclictest663-21runrttasks21:36:302
62109963,2cyclictest4337-21taskset21:33:522
62109963,2cyclictest31932-21taskset20:01:502
62109963,2cyclictest275-21systemd-journal22:16:382
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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