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2026-06-05 - 16:32
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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 rackaslot8.osadl.org (updated Fri Jun 05, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
270882280255,16sleep20-21swapper/207:05:562
272092278248,19sleep00-21swapper/007:07:310
270712271214,47sleep10-21swapper/107:05:431
271822256223,22sleep30-21swapper/307:07:093
128132620,0sleep10-21swapper/112:00:111
226412590,0sleep20-21swapper/211:46:092
161182580,0sleep00-21swapper/010:06:100
275522530,0sleep20-21swapper/210:51:492
4672510,0sleep10-21swapper/111:14:501
206342170,0sleep10-21swapper/109:11:041
31412150,0sleep00-21swapper/010:18:110
116362140,1sleep00-21swapper/011:40:110
27516991312,1cyclictest22-21ksoftirqd/111:00:001
27516991310,2cyclictest22-21ksoftirqd/107:15:011
176232130,0sleep10-21swapper/109:29:021
27516991210,2cyclictest22-21ksoftirqd/111:40:001
2751699119,1cyclictest22-21ksoftirqd/109:50:011
2751699118,2cyclictest22-21ksoftirqd/109:09:591
2751699118,2cyclictest22-21ksoftirqd/108:45:011
2751699118,2cyclictest22-21ksoftirqd/108:45:011
2751699116,4cyclictest658-21snmpd10:17:061
27516991110,1cyclictest22-21ksoftirqd/107:15:001
2752099104,3cyclictest0-21swapper/210:45:012
2752099104,3cyclictest0-21swapper/210:45:012
2751699109,1cyclictest22-21ksoftirqd/110:05:001
2751699108,2cyclictest211rcuc/110:25:121
2751699107,2cyclictest22-21ksoftirqd/110:45:011
2751699107,2cyclictest22-21ksoftirqd/110:45:011
275169998,1cyclictest22-21ksoftirqd/111:55:011
275169998,1cyclictest22-21ksoftirqd/110:40:011
275169998,1cyclictest22-21ksoftirqd/109:40:001
275169998,1cyclictest22-21ksoftirqd/109:20:001
275169997,2cyclictest22-21ksoftirqd/111:10:001
275169997,2cyclictest22-21ksoftirqd/110:00:001
275169996,2cyclictest22-21ksoftirqd/111:25:011
275169996,2cyclictest22-21ksoftirqd/109:45:011
10627290,1sleep310625-21ssh11:20:163
275209984,3cyclictest275-21systemd-journal11:57:262
275209980,1cyclictest24387-21users10:30:202
275169987,1cyclictest22-21ksoftirqd/112:10:011
275169987,1cyclictest22-21ksoftirqd/110:10:011
275169986,2cyclictest22-21ksoftirqd/112:40:011
275169983,2cyclictest12992-21sendmail-msp09:00:001
275169981,5cyclictest22-21ksoftirqd/108:17:011
17490280,0sleep30-21swapper/310:07:133
275259974,2cyclictest275-21systemd-journal07:40:013
275259973,3cyclictest5566-21cron10:20:013
275259973,3cyclictest504-21dbus-daemon10:45:013
275259973,3cyclictest504-21dbus-daemon10:45:013
275259973,3cyclictest30992-21ntpq08:25:173
275259973,3cyclictest275-21systemd-journal09:51:573
275259973,3cyclictest26084-21cat11:30:013
275259973,3cyclictest14346-21wc12:40:013
275259973,3cyclictest1-21systemd11:05:203
275259973,1cyclictest0-21swapper/312:05:543
275209975,2cyclictest28-21ksoftirqd/212:40:002
275209973,3cyclictest658-21snmpd12:22:212
275209973,3cyclictest658-21snmpd11:02:482
275209973,3cyclictest504-21dbus-daemon12:20:012
275209973,3cyclictest275-21systemd-journal12:09:042
275169976,1cyclictest22-21ksoftirqd/112:20:011
275169976,1cyclictest22-21ksoftirqd/108:50:011
275169976,1cyclictest22-21ksoftirqd/108:40:011
275169976,1cyclictest22-21ksoftirqd/107:35:011
275169973,2cyclictest22-21ksoftirqd/111:02:321
275169972,3cyclictest504-21dbus-daemon08:55:001
275169972,3cyclictest22-21ksoftirqd/111:28:051
275169972,3cyclictest22-21ksoftirqd/110:32:561
275169972,3cyclictest141rcu_preempt12:25:501
275169972,1cyclictest141rcu_preempt08:20:141
275169971,4cyclictest22-21ksoftirqd/111:45:121
275169971,4cyclictest22-21ksoftirqd/110:50:151
275169971,4cyclictest22-21ksoftirqd/109:30:261
275169971,4cyclictest19322-21cron11:44:591
275169971,4cyclictest11270-21switchtime07:40:201
275169971,4cyclictest0-21swapper/107:37:111
275169970,5cyclictest22-21ksoftirqd/111:17:231
275169970,4cyclictest22-21ksoftirqd/112:34:021
275169970,1cyclictest22-21ksoftirqd/112:24:561
275099975,1cyclictest17357-21irqstats07:55:140
275099974,2cyclictest5340-21ssh10:39:100
275099973,3cyclictest658-21snmpd07:46:230
275099973,1cyclictest0-21swapper/010:52:380
275099971,3cyclictest275-21systemd-journal11:46:270
22087270,0chrt0-21swapper/011:08:080
12100270,0sleep20-21swapper/211:40:132
31063260,0sleep20-21swapper/211:32:172
275259966,0cyclictest0-21swapper/311:36:063
275259966,0cyclictest0-21swapper/310:58:203
275259965,1cyclictest34-21ksoftirqd/309:05:013
275259963,2cyclictest9191-21rm12:16:533
275259963,2cyclictest7442-21taskset08:45:173
275259963,2cyclictest5209-21tr08:40:163
275259963,2cyclictest5209-21tr08:40:163
275259963,2cyclictest5161-21ssh09:21:093
275259963,2cyclictest504-21dbus-daemon08:21:483
275259963,2cyclictest34-21ksoftirqd/307:35:013
275259963,2cyclictest28599-21ssh09:15:433
275259963,2cyclictest275-21systemd-journal11:55:273
275259963,2cyclictest23959-21sendmail_mailst10:30:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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