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2024-06-17 - 00:08
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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 Sun Jun 16, 2024 00:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
84942319286,21sleep20-21swapper/219:09:422
84942319286,21sleep20-21swapper/219:09:422
83532276212,21sleep00-21swapper/019:07:510
83532276212,21sleep00-21swapper/019:07:510
81672265233,20sleep30-21swapper/319:05:413
81672265233,20sleep30-21swapper/319:05:413
82002261227,22sleep10-21swapper/119:06:071
82002261227,22sleep10-21swapper/119:06:061
139372700,0sleep30-21swapper/300:05:543
235642570,1sleep00-21swapper/022:11:590
116882550,0sleep10-21swapper/121:40:291
268512540,0sleep30-21swapper/321:50:563
171502540,0sleep30-21swapper/322:07:333
211842210,0sleep00-21swapper/021:47:230
133742190,0sleep20-21swapper/200:05:292
81782180,1sleep37997-21latency_hist00:30:003
269962180,0sleep20-21swapper/221:29:472
39922170,0sleep20-21swapper/221:58:032
121732130,0sleep20-21swapper/200:32:592
862699103,2cyclictest4441-21sh21:35:320
862699103,2cyclictest1894-21sh21:56:050
862699103,1cyclictest16519-21ntp_kernel_pll_22:55:210
862699102,3cyclictest29741-11brltty20:10:160
862699102,2cyclictest21860-21cat19:35:230
862699100,4cyclictest19982-21systemd-journal21:03:400
862699100,3cyclictest502-21systemd-logind20:05:010
862699100,3cyclictest19982-21systemd-journal22:15:260
862699100,3cyclictest19982-21systemd-journal20:30:010
862699100,3cyclictest19982-21systemd-journal20:16:570
862699100,3cyclictest19982-21systemd-journal00:40:000
862699100,3cyclictest19982-21systemd-journal00:20:100
86379994,3cyclictest19982-21systemd-journal22:27:363
86349998,1cyclictest28-21ksoftirqd/222:50:012
86349993,5cyclictest0-21swapper/222:02:052
86319992,5cyclictest502-21systemd-logind23:25:311
86269997,1cyclictest25236-21tr19:45:130
86269996,0cyclictest0-21swapper/020:30:280
86269993,2cyclictest11736-21in:imuxsock23:41:460
86269993,1cyclictest51950irq/137-enp4s0-21:30:110
86269993,1cyclictest30706-21diskmemload21:10:340
86269993,1cyclictest2142-21missed_timers22:20:230
86269993,1cyclictest11738-21rs:main0
86269992,3cyclictest31815-21apt-get20:00:110
86269992,3cyclictest29424-21fschecks_time23:05:230
86269992,3cyclictest13388-21snmpd19:21:020
86269992,2cyclictest26862-21rm21:29:390
86269992,2cyclictest24534-21taskset23:01:040
86269992,2cyclictest24534-21taskset23:01:040
86269992,2cyclictest10728-21ssh22:26:370
86269992,1cyclictest0-21swapper/022:42:400
86269991,2cyclictest11137-21ssh22:50:520
86269990,3cyclictest9497-21ntp_states00:30:220
86269990,3cyclictest27088-21rm21:51:080
86269990,3cyclictest19982-21systemd-journal23:26:460
86269990,3cyclictest19982-21systemd-journal20:22:390
86269990,3cyclictest19982-21systemd-journal19:59:250
17195290,0sleep30-21swapper/321:22:283
86379986,1cyclictest0-21swapper/323:36:363
86379983,3cyclictest19982-21systemd-journal23:06:063
86379983,3cyclictest19982-21systemd-journal21:57:593
86349987,1cyclictest28-21ksoftirqd/219:20:012
86349984,1cyclictest508-21dbus-daemon20:20:002
86349980,5cyclictest28718-21ls00:20:002
86319985,2cyclictest508-21dbus-daemon23:56:231
86319983,3cyclictest19982-21systemd-journal23:05:011
86319983,3cyclictest19982-21systemd-journal23:05:001
86269982,2cyclictest26929-21ssh23:51:030
86269982,2cyclictest20306-21ssh22:34:360
86269982,2cyclictest13388-21snmpd19:50:470
86269982,1cyclictest14350-21ssh21:42:540
86269982,1cyclictest0-21swapper/021:21:500
86269981,1cyclictest0-21swapper/000:08:580
86269980,3cyclictest6948-21diskstats22:00:170
86269980,3cyclictest18101-21df_inode23:45:180
86269980,0cyclictest0-21swapper/021:18:490
29601280,0sleep00-21swapper/023:30:070
24965280,0sleep10-21swapper/120:55:191
20034280,0sleep30-21swapper/320:45:123
18467280,0sleep10-21swapper/123:45:221
86379973,3cyclictest9812-21sensors_temp00:30:263
86379973,3cyclictest508-21dbus-daemon23:20:013
86379973,3cyclictest508-21dbus-daemon21:18:163
86379973,3cyclictest508-21dbus-daemon19:26:523
86379973,3cyclictest508-21dbus-daemon19:20:003
86379973,3cyclictest29741-11brltty22:13:213
86379973,3cyclictest19982-21systemd-journal23:32:043
86379973,3cyclictest19982-21systemd-journal20:58:063
86379973,3cyclictest19982-21systemd-journal20:11:313
86379973,3cyclictest13388-21snmpd22:59:233
86379973,3cyclictest13388-21snmpd20:39:163
86379973,3cyclictest13388-21snmpd20:32:323
86379973,3cyclictest13388-21snmpd20:20:243
86379973,3cyclictest0-21swapper/323:03:493
86379973,3cyclictest0-21swapper/323:03:493
86379973,3cyclictest0-21swapper/300:14:543
86379972,3cyclictest19982-21systemd-journal22:30:023
86379972,3cyclictest19982-21systemd-journal22:17:363
86379972,3cyclictest19982-21systemd-journal21:34:593
86349974,2cyclictest502-21systemd-logind20:52:242
86349973,3cyclictest502-21systemd-logind00:00:342
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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