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2025-11-21 - 05:16
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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 Nov 21, 2025 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
136982290257,20sleep20-21swapper/219:08:082
137532280216,22sleep00-21swapper/019:08:510
136362280246,21sleep30-21swapper/319:07:213
138192266234,21sleep10-21swapper/119:09:441
221412650,0sleep00-21swapper/000:12:150
288782590,0sleep20-21swapper/223:52:502
292762540,0sleep00-21swapper/020:50:210
171132170,0sleep10-21swapper/100:34:531
56822160,0sleep20-21swapper/221:10:172
274332150,0sleep20-21swapper/223:04:452
201702140,0sleep00-21swapper/019:20:150
89802120,0sleep30-21swapper/321:12:453
89372120,0sleep30-21swapper/322:01:233
3222120,0sleep10-21swapper/123:08:251
100532120,0sleep30-21swapper/300:02:483
1396799107,2cyclictest22-21ksoftirqd/123:15:011
139799994,3cyclictest19982-21systemd-journal20:46:243
139749992,3cyclictest10076-21dump-pmu-power23:40:002
139679994,3cyclictest19982-21systemd-journal22:07:071
139649994,3cyclictest19982-21systemd-journal21:05:340
139799985,2cyclictest508-21dbus-daemon23:11:103
139799985,2cyclictest508-21dbus-daemon19:24:393
139799984,3cyclictest19982-21systemd-journal22:25:163
139799984,3cyclictest19982-21systemd-journal00:13:033
139799983,3cyclictest19982-21systemd-journal22:09:553
139799983,3cyclictest19982-21systemd-journal20:50:533
139799983,3cyclictest19982-21systemd-journal20:25:013
139799983,3cyclictest19982-21systemd-journal19:38:253
139749984,3cyclictest508-21dbus-daemon00:19:112
139749984,3cyclictest19982-21systemd-journal21:21:522
139749983,3cyclictest19982-21systemd-journal00:01:142
139679984,3cyclictest508-21dbus-daemon23:47:281
139679984,3cyclictest19982-21systemd-journal19:19:131
139679983,3cyclictest19982-21systemd-journal19:56:511
139679982,3cyclictest4339-21munin-run00:25:011
139649984,3cyclictest19982-21systemd-journal22:35:540
139649984,3cyclictest19982-21systemd-journal21:38:530
139649983,4cyclictest7661-21lldpd21:58:320
139649983,3cyclictest19982-21systemd-journal19:26:310
139649983,3cyclictest19982-21systemd-journal19:18:220
139649983,3cyclictest19982-21systemd-journal00:00:010
139649982,3cyclictest18910-21turbostat22:10:020
139649980,7cyclictest29719-21chrt00:18:510
139799975,2cyclictest34-21ksoftirqd/319:15:003
139799974,2cyclictest508-21dbus-daemon23:04:043
139799974,2cyclictest508-21dbus-daemon19:16:183
139799974,2cyclictest34-21ksoftirqd/322:50:013
139799974,2cyclictest11738-21rs:main3
139799973,3cyclictest973-21ntpq21:00:173
139799973,3cyclictest8218-21df_inode22:50:153
139799973,3cyclictest0-21swapper/300:20:133
139799973,1cyclictest0-21swapper/321:52:123
139799973,1cyclictest0-21swapper/321:39:563
139799972,3cyclictest7661-21lldpd22:12:463
139799972,3cyclictest19982-21systemd-journal21:20:363
139799972,3cyclictest19982-21systemd-journal20:35:013
139799971,5cyclictest5247-21fschecks_time00:25:143
139799971,5cyclictest20234-21fschecks_time22:35:163
139799971,4cyclictest19982-21systemd-journal19:25:043
139799970,3cyclictest17460-21ntp_states20:25:193
139749975,1cyclictest2825-21dump-pmu-power19:55:002
139749974,2cyclictest508-21dbus-daemon20:12:372
139749974,2cyclictest502-21systemd-logind22:42:492
139749973,3cyclictest508-21dbus-daemon22:49:042
139749973,3cyclictest502-21systemd-logind22:34:532
139749973,3cyclictest29741-11brltty21:02:152
139749973,3cyclictest12987-21ntpq20:15:202
139749973,3cyclictest0-21swapper/223:09:232
139749973,3cyclictest0-21swapper/222:09:482
139749973,1cyclictest0-21swapper/223:47:062
139749972,3cyclictest19982-21systemd-journal21:52:362
139749972,3cyclictest19982-21systemd-journal00:06:392
139749971,5cyclictest14763-21cat22:55:142
139749971,3cyclictest27659-21rm22:15:252
139749970,3cyclictest5570-40systemctl23:59:592
139749970,3cyclictest19982-21systemd-journal22:52:452
139679976,1cyclictest3119-21ssh21:32:201
139679976,1cyclictest22-21ksoftirqd/121:10:001
139679976,1cyclictest10477-21ssh22:51:221
139679976,1cyclictest0-21swapper/122:49:271
139679973,3cyclictest30654-21snmpd20:05:201
139679973,3cyclictest27390-21vmstat21:50:221
139679973,3cyclictest19982-21systemd-journal23:30:001
139679973,3cyclictest19982-21systemd-journal22:28:551
139679973,3cyclictest19982-21systemd-journal20:11:471
139679973,3cyclictest0-21swapper/122:59:531
139679973,1cyclictest0-21swapper/122:36:071
139679973,1cyclictest0-21swapper/100:13:271
139679972,3cyclictest19982-21systemd-journal21:45:011
139679972,3cyclictest19982-21systemd-journal00:00:001
139679971,2cyclictest19982-21systemd-journal23:19:061
139679970,4cyclictest14013-21idleruntime-cro20:20:011
139649974,2cyclictest11736-21in:imuxsock23:21:360
139649973,3cyclictest30489-21cron19:45:010
139649973,3cyclictest29741-11brltty20:03:260
139649973,3cyclictest1389-21smart_sda22:20:210
139649973,3cyclictest12407-21df_inode20:15:150
139649973,3cyclictest0-21swapper/023:41:290
139649973,2cyclictest7661-21lldpd23:12:340
139649973,1cyclictest0-21swapper/022:47:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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