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2025-12-11 - 12:08
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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 Thu Dec 11, 2025 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
86942283251,21sleep00-21swapper/019:05:090
104792281247,22sleep10-21swapper/119:07:281
105062274206,20sleep20-21swapper/219:07:492
86872260224,23sleep30-21swapper/319:05:043
81992610,0sleep10-21swapper/121:59:581
153582600,1sleep20-21swapper/221:20:132
246682590,0sleep10-21swapper/121:48:531
125202580,0sleep30-21swapper/300:18:273
202192140,0sleep10-21swapper/123:15:141
268352130,0sleep00-21swapper/022:56:270
55442120,0sleep00-21swapper/000:39:180
7120290,0sleep30-21swapper/322:42:573
32698290,1sleep20-21swapper/223:00:222
107809996,2cyclictest34-21ksoftirqd/319:15:013
107809994,3cyclictest19982-21systemd-journal23:13:283
107769990,8cyclictest11199-21mailstats22:45:202
107719997,1cyclictest30337-21sshd21:01:201
107719994,3cyclictest19982-21systemd-journal22:58:281
107719994,3cyclictest19982-21systemd-journal21:26:281
21259280,0sleep20-21swapper/222:08:202
107809986,1cyclictest34-21ksoftirqd/322:40:003
107809983,3cyclictest19982-21systemd-journal23:15:103
107809983,3cyclictest19982-21systemd-journal21:15:013
107769984,3cyclictest19982-21systemd-journal23:44:282
107769984,3cyclictest19982-21systemd-journal21:02:542
107769983,3cyclictest20523-21systemd-udevd23:50:202
107769983,3cyclictest19982-21systemd-journal22:43:202
107719985,2cyclictest19982-21systemd-journal00:37:461
107719984,3cyclictest508-21dbus-daemon22:05:301
107719984,3cyclictest11736-21in:imuxsock20:37:521
107719984,1cyclictest19408-21awk23:15:011
107719983,3cyclictest19982-21systemd-journal19:20:411
107719983,3cyclictest19982-21systemd-journal19:20:411
107669983,3cyclictest19982-21systemd-journal22:12:100
107669983,3cyclictest19982-21systemd-journal21:27:060
30589270,0sleep20-21swapper/221:52:382
26581270,0sleep326582-21grep21:50:153
21928270,0sleep30-21swapper/322:53:263
17945270,0sleep00-21swapper/022:05:220
107809976,1cyclictest34-21ksoftirqd/322:30:013
107809974,2cyclictest20186-21df00:00:133
107809974,2cyclictest19982-21systemd-journal21:29:263
107809974,2cyclictest18023-21sshd00:22:273
107809974,2cyclictest11736-21in:imuxsock19:56:063
107809973,3cyclictest508-21dbus-daemon23:10:013
107809973,3cyclictest508-21dbus-daemon00:13:093
107809973,3cyclictest2757-21sensors_temp20:00:213
107809973,3cyclictest14330-21cut19:15:133
107809973,3cyclictest0-21swapper/321:42:273
107809973,2cyclictest19982-21systemd-journal23:20:593
107809973,2cyclictest19982-21systemd-journal22:56:433
107809973,2cyclictest19982-21systemd-journal19:29:523
107809973,1cyclictest0-21swapper/323:42:123
107809973,1cyclictest0-21swapper/322:00:153
107809973,1cyclictest0-21swapper/321:32:083
107809972,3cyclictest19982-21systemd-journal22:45:073
107809972,3cyclictest19982-21systemd-journal22:17:103
107809972,3cyclictest19982-21systemd-journal20:50:483
107809972,3cyclictest19982-21systemd-journal00:34:013
107809971,4cyclictest51850irq/136-enp4s0-22:31:383
107769974,2cyclictest27845-21ls00:05:212
107769974,2cyclictest2083-21cron22:40:012
107769973,3cyclictest7661-21lldpd23:20:322
107769973,3cyclictest508-21dbus-daemon22:55:012
107769973,3cyclictest502-21systemd-logind21:47:082
107769973,3cyclictest26629-21sshd22:11:352
107769973,3cyclictest19982-21systemd-journal23:55:282
107769973,3cyclictest0-21swapper/223:46:572
107769973,1cyclictest0-21swapper/221:31:422
107769973,1cyclictest0-21swapper/200:27:172
107769972,3cyclictest19982-21systemd-journal23:38:062
107769972,3cyclictest19982-21systemd-journal23:13:532
107769972,3cyclictest19982-21systemd-journal00:13:512
107769971,4cyclictest19982-21systemd-journal00:01:532
107769971,3cyclictest18075-21munin-run19:25:012
107769971,3cyclictest18075-21munin-run19:25:012
107719974,2cyclictest22-21ksoftirqd/119:55:001
107719973,3cyclictest508-21dbus-daemon22:05:001
107719973,3cyclictest29741-11brltty19:26:071
107719973,3cyclictest19982-21systemd-journal23:08:291
107719973,3cyclictest14769-21df_inode00:20:141
107719973,2cyclictest19982-21systemd-journal22:51:481
107719973,1cyclictest0-21swapper/122:17:451
107719973,1cyclictest0-21swapper/121:12:451
107719973,1cyclictest0-21swapper/100:02:031
107719972,4cyclictest22-21ksoftirqd/119:36:041
107719972,2cyclictest23641-21ls20:50:011
107669975,1cyclictest12-21ksoftirqd/022:45:010
107669974,2cyclictest32568-21sshd21:06:220
107669974,2cyclictest278192sleep020:56:390
107669973,3cyclictest7657-21cron00:19:550
107669973,3cyclictest508-21dbus-daemon19:15:160
107669973,3cyclictest30654-21snmpd00:13:230
107669973,3cyclictest30654-21snmpd00:06:200
107669973,3cyclictest19116-21gdbus19:30:010
107669973,3cyclictest16163-21smart_sda20:30:200
107669973,3cyclictest11736-21in:imuxsock23:54:460
107669973,3cyclictest0-21swapper/023:55:160
107669973,3cyclictest0-21swapper/023:27:050
107669973,3cyclictest0-21swapper/022:16:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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