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2025-11-15 - 22:40
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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 Sat Nov 15, 2025 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
45132331299,20sleep20-21swapper/207:08:502
46112290257,22sleep10-21swapper/107:09:591
43242274243,20sleep00-21swapper/007:06:230
43472263228,22sleep30-21swapper/307:06:423
268692590,0sleep20-21swapper/210:03:012
161172580,0sleep20-21swapper/212:25:082
65152540,0sleep30-21swapper/312:38:393
196172540,0sleep00-21swapper/012:06:470
201132180,0sleep10-21swapper/111:40:531
292862160,0sleep00-21swapper/011:23:470
4717991411,2cyclictest28-21ksoftirqd/210:10:012
71412120,0sleep30-21swapper/312:19:443
152372110,0sleep00-21swapper/012:04:310
472099105,3cyclictest19982-21systemd-journal07:11:483
47209994,3cyclictest19982-21systemd-journal09:25:493
47209990,8cyclictest26549-21ntp_states09:05:183
47179996,2cyclictest12019-21cron07:25:012
47129994,3cyclictest19982-21systemd-journal10:00:231
47079998,1cyclictest12-21ksoftirqd/011:00:010
47079996,2cyclictest1418-21grep12:15:210
47079995,2cyclictest19982-21systemd-journal09:08:380
47209984,3cyclictest8774-21ntpq07:15:193
47209984,3cyclictest508-21dbus-daemon11:50:313
47209983,4cyclictest508-21dbus-daemon11:48:263
47209983,4cyclictest0-21swapper/309:15:353
47209983,3cyclictest19982-21systemd-journal08:26:063
47179987,1cyclictest28-21ksoftirqd/211:30:012
47179986,1cyclictest1890-21sed08:10:222
47179984,3cyclictest508-21dbus-daemon07:50:382
47179984,3cyclictest19982-21systemd-journal10:15:392
47179983,3cyclictest19982-21systemd-journal11:30:552
47179983,3cyclictest19982-21systemd-journal10:45:552
47179983,3cyclictest19982-21systemd-journal09:55:592
47179983,3cyclictest19982-21systemd-journal07:56:532
47179981,4cyclictest19163-21ls07:40:012
47129986,2cyclictest22-21ksoftirqd/110:40:001
47129984,3cyclictest5686-21systemctl11:55:191
47129984,3cyclictest19982-21systemd-journal09:40:471
47129983,3cyclictest19982-21systemd-journal07:44:481
47129982,5cyclictest8292-21munin-run12:40:001
47079986,2cyclictest12-21ksoftirqd/007:30:020
47079986,2cyclictest12-21ksoftirqd/007:30:010
47079986,1cyclictest12-21ksoftirqd/011:05:010
47079984,3cyclictest19982-21systemd-journal09:50:520
47079984,2cyclictest30654-21snmpd10:47:340
18892280,0sleep00-21swapper/011:40:160
47209976,1cyclictest34-21ksoftirqd/309:00:003
47209974,2cyclictest25083-21idleruntime11:20:163
47209973,3cyclictest508-21dbus-daemon12:05:323
47209973,3cyclictest508-21dbus-daemon10:41:413
47209973,3cyclictest19116-21gdbus10:50:003
47209973,3cyclictest15579-21cron09:55:003
47209973,1cyclictest0-21swapper/311:30:253
47209973,1cyclictest0-21swapper/311:27:163
47209973,1cyclictest0-21swapper/310:12:553
47209973,1cyclictest0-21swapper/309:34:503
47209972,3cyclictest19982-21systemd-journal08:18:483
47209972,3cyclictest19982-21systemd-journal08:15:003
47179975,1cyclictest0-21swapper/210:20:162
47179974,2cyclictest508-21dbus-daemon09:08:142
47179974,2cyclictest502-21systemd-logind10:12:052
47179973,3cyclictest508-21dbus-daemon08:31:062
47179973,3cyclictest508-21dbus-daemon08:24:502
47179973,3cyclictest25268-21memory11:20:162
47179973,3cyclictest19982-21systemd-journal09:33:152
47179973,3cyclictest0-21swapper/212:33:012
47179973,3cyclictest0-21swapper/210:27:582
47179973,1cyclictest0-21swapper/212:39:582
47179973,1cyclictest0-21swapper/211:19:362
47179972,4cyclictest25441-21basename10:55:012
47179972,3cyclictest19982-21systemd-journal08:46:322
47179972,1cyclictest0-21swapper/209:29:552
47179971,4cyclictest19982-21systemd-journal09:35:452
47129974,2cyclictest508-21dbus-daemon12:27:391
47129974,2cyclictest19982-21systemd-journal11:05:381
47129974,2cyclictest1-21systemd08:15:001
47129973,3cyclictest8348-21tail10:40:171
47129973,3cyclictest508-21dbus-daemon11:38:001
47129973,3cyclictest508-21dbus-daemon11:27:091
47129973,3cyclictest508-21dbus-daemon07:55:011
47129973,3cyclictest30654-21snmpd12:20:561
47129973,3cyclictest15974-21irqstats10:20:181
47129973,3cyclictest0-21swapper/112:31:421
47129973,3cyclictest0-21swapper/111:16:361
47129973,3cyclictest0-21swapper/110:25:141
47129973,2cyclictest19982-21systemd-journal08:38:481
47129973,1cyclictest0-21swapper/110:49:541
47129972,4cyclictest28606-21cron10:09:551
47129972,3cyclictest19982-21systemd-journal12:16:481
47079973,3cyclictest7661-21lldpd10:10:150
47079973,3cyclictest30654-21snmpd11:07:000
47079973,3cyclictest30654-21snmpd09:31:270
47079973,3cyclictest29038-21cat08:00:140
47079973,3cyclictest19982-21systemd-journal10:35:350
47079973,3cyclictest18437-21expr11:15:140
47079973,3cyclictest12710-21/usr/sbin/munin11:35:250
47079973,3cyclictest1-21systemd08:49:530
47079973,3cyclictest0-21swapper/012:26:090
47079973,3cyclictest0-21swapper/010:31:370
47079973,3cyclictest0-21swapper/009:47:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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