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2025-11-24 - 14:28
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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 Mon Nov 24, 2025 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
80362331299,20sleep20-21swapper/219:09:462
60652287220,23sleep10-21swapper/119:05:031
79952275210,22sleep30-21swapper/319:09:153
77762266233,21sleep00-21swapper/019:06:230
174552590,0sleep10-21swapper/122:27:211
183952580,0sleep00-21swapper/021:22:570
164672580,0sleep10-21swapper/123:55:151
221562560,0sleep00-21swapper/021:46:480
185312560,0sleep00-21swapper/023:12:210
264752550,1sleep30-21swapper/321:28:323
31482190,0sleep20-21swapper/223:24:292
12262190,0sleep00-21swapper/022:16:110
14222180,0sleep20-21swapper/200:30:152
816399150,3cyclictest29740-21head21:05:151
8172991412,1cyclictest34-21ksoftirqd/320:30:003
816399144,3cyclictest19982-21systemd-journal23:09:561
250362140,0sleep10-21swapper/121:49:251
816399132,3cyclictest19982-21systemd-journal23:53:191
816399130,2cyclictest14972-21sh21:20:191
290162130,0sleep00-21swapper/022:35:170
816399122,2cyclictest19982-21systemd-journal00:23:481
816399121,2cyclictest19982-21systemd-journal19:40:011
816399120,4cyclictest13383-21ssh21:40:391
816399120,3cyclictest20551-21smart_sda20:45:191
816399120,3cyclictest19982-21systemd-journal21:20:001
816399113,3cyclictest30654-21snmpd22:49:461
816399113,2cyclictest27038-21sh21:29:021
816399113,1cyclictest11736-21in:imuxsock20:59:451
816399112,2cyclictest5712-21tr20:15:151
816399112,2cyclictest16722-21cut19:25:201
816399112,1cyclictest12995-21dump-pmu-power22:25:001
816399112,1cyclictest0-21swapper/123:38:171
816399112,1cyclictest0-21swapper/122:42:461
816399112,1cyclictest0-21swapper/100:37:241
816399111,2cyclictest28115-21ssh23:40:201
816399111,1cyclictest19982-21systemd-journal21:01:501
816399110,3cyclictest4416-21ssh21:35:141
816399110,3cyclictest19982-21systemd-journal23:24:241
816399110,3cyclictest19982-21systemd-journal00:29:371
816399110,3cyclictest11134-21munin-node19:15:011
816399110,3cyclictest0-21swapper/121:55:201
816399110,2cyclictest19982-21systemd-journal23:50:011
816399110,2cyclictest19982-21systemd-journal23:30:001
816399110,2cyclictest19982-21systemd-journal23:15:211
816399110,2cyclictest19982-21systemd-journal22:19:021
816399110,2cyclictest19982-21systemd-journal20:25:001
319982110,0sleep30-21swapper/320:00:153
817299109,1cyclictest34-21ksoftirqd/321:40:013
817299107,2cyclictest34-21ksoftirqd/300:30:003
816399102,2cyclictest21622-21uname22:30:151
816399102,2cyclictest13798-21tr20:30:191
816399102,1cyclictest9138-21fschecks_time22:00:161
816399101,3cyclictest0-21swapper/122:39:491
816399101,2cyclictest23061-21apt-get00:00:121
816399100,4cyclictest31784-21cut21:10:121
816399100,4cyclictest23611-21apt-config20:55:001
816399100,3cyclictest5358-21awk20:15:011
816399100,3cyclictest508-21dbus-daemon20:05:011
816399100,3cyclictest32720-21cstates23:00:121
816399100,3cyclictest30883-21ssh21:30:371
816399100,3cyclictest29256-21ssh22:13:531
816399100,3cyclictest28361-21unixbench_multi19:50:211
816399100,3cyclictest25246-21hddtemp_smartct19:45:161
816399100,3cyclictest22955-21grep19:40:161
816399100,3cyclictest2091-21ntpq20:05:171
816399100,3cyclictest19492-21grep22:50:211
816399100,3cyclictest12721-21/usr/sbin/munin00:15:161
816399100,3cyclictest12369-21grep23:30:151
816399100,2cyclictest6910-21sed00:10:241
816399100,2cyclictest19982-21systemd-journal22:09:011
816399100,2cyclictest19982-21systemd-journal20:25:461
816399100,2cyclictest19982-21systemd-journal19:33:481
816399100,2cyclictest19982-21systemd-journal00:30:021
816199109,1cyclictest12-21ksoftirqd/021:00:000
81729998,1cyclictest34-21ksoftirqd/321:20:003
81729997,2cyclictest34-21ksoftirqd/322:40:003
81729996,2cyclictest34-21ksoftirqd/319:15:013
81729993,4cyclictest34-21ksoftirqd/322:40:313
81729993,4cyclictest34-21ksoftirqd/300:34:333
81729992,5cyclictest34-21ksoftirqd/323:40:043
81729992,5cyclictest34-21ksoftirqd/323:32:553
81729992,5cyclictest34-21ksoftirqd/322:07:113
81729992,5cyclictest34-21ksoftirqd/321:31:123
81729992,5cyclictest34-21ksoftirqd/321:14:483
81729992,5cyclictest0-21swapper/323:24:243
81729992,5cyclictest0-21swapper/319:35:113
81729992,4cyclictest34-21ksoftirqd/323:57:483
81729992,4cyclictest34-21ksoftirqd/323:47:323
81729992,4cyclictest34-21ksoftirqd/323:01:183
81679993,3cyclictest26033-21munin-plugin-st00:25:002
81679990,8cyclictest7912-21ssh22:20:342
81639992,1cyclictest15825-21ntp_states20:35:191
81639991,2cyclictest25351-21cpuspeed_turbos22:55:151
81639990,3cyclictest3194-21sshd00:08:351
81639990,3cyclictest25975-21sh21:50:041
81639990,3cyclictest17504-21diskstats20:40:141
81639990,3cyclictest15028-21df_inode23:10:141
81639990,2cyclictest19982-21systemd-journal19:55:421
81619998,1cyclictest12-21ksoftirqd/022:00:010
81619994,3cyclictest19982-21systemd-journal20:45:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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