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2026-09-22 - 07:59
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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 Tue Sep 22, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
275532286255,20sleep20-21swapper/219:07:522
275622274242,21sleep10-21swapper/119:08:001
275182268235,22sleep00-21swapper/019:07:260
276572266234,21sleep30-21swapper/319:09:133
159122810,0sleep10-21swapper/122:45:011
48552660,0sleep30-21swapper/300:33:353
254362640,0sleep20-21swapper/222:11:442
186472590,0sleep10-21swapper/123:44:271
52352570,0sleep10-21swapper/121:40:171
73142540,0sleep00-21swapper/023:18:120
90982530,0sleep30-21swapper/322:21:103
310892210,0sleep10-21swapper/120:25:181
31112170,0sleep10-21swapper/122:17:591
284262160,1sleep327812-21cyclictest00:09:083
8352150,0sleep10-21swapper/120:30:191
285862150,0sleep10-21swapper/100:28:211
110692150,0sleep20-21swapper/222:41:472
49722140,0sleep00-21swapper/000:33:390
37002140,0sleep00-21swapper/021:40:050
277942130,0sleep20-21swapper/221:35:112
261762130,0sleep30-21swapper/323:29:453
2783099103,2cyclictest27178-21ssh22:13:013
264162100,0chrt0-21swapper/123:29:551
232512100,0sleep10-21swapper/121:12:561
278309993,1cyclictest0-21swapper/322:28:363
278309992,3cyclictest14917-21snmpd22:56:183
278309992,2cyclictest31318-21netstat22:15:173
278279998,1cyclictest28-21ksoftirqd/223:40:012
278189990,8cyclictest19929-21ssh21:49:460
25864290,0sleep00-21swapper/023:29:290
31344280,0sleep00-21swapper/022:15:170
278309982,2cyclictest14917-21snmpd20:20:303
278309982,1cyclictest0-21swapper/321:36:173
278309980,4cyclictest30234-21ntp_states21:55:183
278279987,1cyclictest28-21ksoftirqd/223:00:002
278279986,1cyclictest28-21ksoftirqd/220:10:012
278229987,1cyclictest22-21ksoftirqd/120:00:011
278229985,2cyclictest1-21systemd22:33:581
278229982,4cyclictest6952-21idleruntime-cro22:40:001
278229980,7cyclictest32574-21ssh23:52:161
278229980,7cyclictest31219-21sh21:36:351
278309974,2cyclictest275-21systemd-journal00:10:293
278309973,3cyclictest4908-21basename19:30:013
278309973,3cyclictest275-21systemd-journal19:58:283
278309973,3cyclictest22842-11brltty20:08:383
278309973,2cyclictest275-21systemd-journal22:52:063
278309973,1cyclictest0-21swapper/323:38:493
278309973,1cyclictest0-21swapper/321:45:213
278279974,2cyclictest5780-21sshd23:17:042
278279973,3cyclictest275-21systemd-journal20:55:002
278279973,3cyclictest275-21systemd-journal20:04:562
278279973,3cyclictest275-21systemd-journal00:32:292
278279973,3cyclictest275-21systemd-journal00:00:002
278279972,3cyclictest18916-21munin-run21:30:002
278279972,3cyclictest11590-21basename19:45:002
278279970,7cyclictest0-21swapper/223:01:232
278229976,1cyclictest22-21ksoftirqd/120:20:011
278229973,3cyclictest504-21dbus-daemon21:50:361
278229973,3cyclictest504-21dbus-daemon00:15:471
278229973,3cyclictest30195-21ntpq21:55:181
278229973,3cyclictest26565-21awk21:15:121
278229973,3cyclictest14917-21snmpd00:02:471
278229972,3cyclictest5575-21grep00:15:011
278229972,3cyclictest20489-21dump-pmu-power20:05:011
278229971,4cyclictest275-21systemd-journal19:40:121
278229971,3cyclictest2676-21munin-run19:25:001
278189976,1cyclictest25822-21ssh21:33:510
278189974,2cyclictest12-21ksoftirqd/000:00:010
278189973,3cyclictest275-21systemd-journal20:54:290
278189973,3cyclictest14917-21snmpd23:45:180
278189972,3cyclictest275-21systemd-journal21:24:400
278189972,1cyclictest0-21swapper/021:15:160
278189970,1cyclictest330-21ssh22:55:050
2538270,0sleep00-21swapper/021:58:280
22842270,0sleep20-21swapper/221:12:372
21948270,0sleep10-21swapper/121:30:561
13887270,2sleep3331rcuc/300:00:153
278309964,1cyclictest4410-21grep21:40:143
278309964,1cyclictest17650-21cut23:05:153
278309963,2cyclictest9522-21tune2fs23:00:133
278309963,2cyclictest9369-21sh22:02:153
278309963,2cyclictest7040-21cat20:45:133
278309963,2cyclictest504-21dbus-daemon20:50:493
278309963,2cyclictest4590-21ssh21:20:343
278309963,2cyclictest4379-21rm23:55:063
278309963,2cyclictest30219-21df_inode19:15:023
278309963,2cyclictest275-21systemd-journal21:51:273
278309963,2cyclictest25341-21ssh22:30:463
278309963,2cyclictest24312-21latency_hist22:50:023
278309963,2cyclictest18221-21ssh00:21:503
278309963,2cyclictest14917-21snmpd23:11:293
278309963,2cyclictest14917-21snmpd00:26:273
278309963,1cyclictest0-21swapper/323:43:063
278309963,1cyclictest0-21swapper/300:37:383
278309962,3cyclictest8334-21ntpq19:35:193
278309962,3cyclictest8179-21cat22:40:163
278309962,3cyclictest7159-21ntp_states00:15:183
278309962,3cyclictest275-21systemd-journal21:05:283
278309962,3cyclictest27013-21awk20:15:213
278309962,3cyclictest19228-21pluginstate21:10:183
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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