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2025-04-02 - 06:44
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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 Wed Apr 02, 2025 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122922274239,23sleep10-21swapper/119:08:131
121392269235,22sleep30-21swapper/319:06:143
123902265214,17sleep20-21swapper/219:09:312
122562265232,21sleep00-21swapper/019:07:430
111312630,0sleep30-21swapper/323:38:393
257192570,0sleep20-21swapper/200:14:382
236322570,0sleep30-21swapper/321:50:163
62752560,0sleep00-21swapper/000:24:400
5992560,0sleep00-21swapper/023:30:510
137522560,0sleep00-21swapper/019:10:200
276052530,1sleep20-21swapper/219:40:172
212172220,0sleep00-21swapper/022:12:110
7202180,0sleep30-21swapper/323:30:583
168622180,0sleep10-21swapper/100:33:431
138552180,0sleep10-21swapper/122:30:141
300742160,0sleep20-21swapper/222:41:122
313502150,0sleep00-21swapper/022:19:440
206002150,0sleep20-21swapper/220:45:152
308202130,0sleep20-21swapper/223:53:112
158462130,0sleep20-21swapper/222:55:142
1253399129,1cyclictest19982-21systemd-journal23:15:401
1252999118,2cyclictest12-21ksoftirqd/023:45:000
1253399109,1cyclictest22-21ksoftirqd/120:35:001
4795290,0sleep30-21swapper/321:36:523
125429996,2cyclictest30654-21snmpd00:19:313
125429990,2cyclictest19372-21awk19:20:213
125389998,1cyclictest28-21ksoftirqd/220:35:002
125389996,2cyclictest19982-21systemd-journal00:10:002
16677280,0sleep30-21swapper/322:09:423
125429983,3cyclictest19982-21systemd-journal23:25:163
125429983,3cyclictest19982-21systemd-journal19:31:373
125389985,2cyclictest12657-21cron23:40:012
125389985,2cyclictest1045-21grep23:55:122
125339983,3cyclictest19982-21systemd-journal19:55:491
125339981,3cyclictest508-21dbus-daemon22:00:011
125299983,3cyclictest19982-21systemd-journal22:08:300
125299982,3cyclictest21740-21ls21:50:010
4628270,1sleep2271rcuc/222:47:212
125429974,2cyclictest11736-21in:imuxsock19:58:453
125429973,3cyclictest8847-21cut20:15:163
125429973,3cyclictest508-21dbus-daemon21:05:013
125429973,3cyclictest508-21dbus-daemon20:45:033
125429973,3cyclictest508-21dbus-daemon20:32:563
125429973,3cyclictest30654-21snmpd22:46:513
125429973,3cyclictest30654-21snmpd20:07:303
125429973,3cyclictest19982-21systemd-journal19:49:343
125429973,3cyclictest10925-21fschecks_count23:15:153
125429973,3cyclictest0-21swapper/323:56:523
125429973,1cyclictest0-21swapper/322:56:553
125429973,1cyclictest0-21swapper/322:22:233
125429973,1cyclictest0-21swapper/321:59:263
125429973,1cyclictest0-21swapper/300:38:023
125429973,1cyclictest0-21swapper/300:20:463
125429973,1cyclictest0-21swapper/300:13:593
125429972,3cyclictest19982-21systemd-journal23:44:283
125429972,3cyclictest19982-21systemd-journal21:12:353
125389974,2cyclictest30654-21snmpd22:34:392
125389974,2cyclictest11736-21in:imuxsock22:52:192
125389973,3cyclictest0-21swapper/200:01:142
125389973,2cyclictest508-21dbus-daemon00:29:562
125389972,3cyclictest3181-21expr23:10:092
125389972,3cyclictest19982-21systemd-journal00:35:002
125389971,0cyclictest141rcu_preempt20:35:122
125389970,5cyclictest19982-21systemd-journal21:23:002
125389970,2cyclictest19982-21systemd-journal00:25:002
125339974,2cyclictest1-21systemd21:08:491
125339973,3cyclictest508-21dbus-daemon23:46:081
125339973,3cyclictest508-21dbus-daemon20:42:081
125339973,3cyclictest30654-21snmpd22:52:501
125339973,3cyclictest19982-21systemd-journal23:27:451
125339973,3cyclictest19982-21systemd-journal21:15:551
125339973,3cyclictest0-21swapper/123:58:111
125339973,3cyclictest0-21swapper/121:49:541
125339973,1cyclictest0-21swapper/123:51:211
125339973,1cyclictest0-21swapper/123:36:071
125339973,1cyclictest0-21swapper/123:34:151
125339973,1cyclictest0-21swapper/123:09:061
125339972,4cyclictest19116-21gdbus22:25:011
125339972,2cyclictest20258-21awk21:25:011
125299974,2cyclictest508-21dbus-daemon00:13:400
125299974,2cyclictest19982-21systemd-journal20:00:330
125299974,2cyclictest12656-21cron23:40:010
125299974,2cyclictest12-21ksoftirqd/020:05:510
125299974,2cyclictest11736-21in:imuxsock23:28:110
125299974,2cyclictest11736-21in:imuxsock00:30:450
125299973,3cyclictest508-21dbus-daemon21:00:000
125299973,3cyclictest30654-21snmpd21:30:050
125299973,3cyclictest30654-21snmpd20:47:000
125299973,3cyclictest15505-21smart_sda19:15:020
125299973,3cyclictest1-21systemd19:28:430
125299973,3cyclictest11701-21cron00:29:590
125299973,1cyclictest0-21swapper/023:50:500
125299973,1cyclictest0-21swapper/022:48:350
125299973,1cyclictest0-21swapper/022:37:130
125299973,1cyclictest0-21swapper/021:27:540
125299972,2cyclictest0-21swapper/021:57:330
125299971,4cyclictest19982-21systemd-journal20:10:510
125299971,3cyclictest29961-21rm23:05:160
125299970,4cyclictest7629-21dump-pmu-power00:00:000
125429963,2cyclictest4780-21df22:00:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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