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2022-10-04 - 02:45

x86 Intel Core i5-8265UE @1600 MHz, Linux 5.10.41-rt42 (Profile)

Latency plot of system in rack #a, slot #8
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 Oct 03, 2022 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
241142286256,19sleep20-21swapper/207:07:022
241272269213,17sleep30-21swapper/307:07:123
241082266236,19sleep10-21swapper/107:06:571
223822263233,19sleep00-21swapper/007:05:030
61562660,0sleep20-21swapper/211:28:062
42142660,0sleep20-21swapper/211:47:522
86582630,0sleep10-21swapper/110:48:491
11702600,0sleep30-21swapper/311:25:153
95882580,0sleep10-21swapper/111:50:561
42572570,0sleep00-21swapper/011:47:550
66022540,0sleep30-21swapper/310:47:063
112972500,0sleep30-21swapper/311:52:253
101042190,1sleep00-21swapper/010:08:230
146082180,0sleep10-21swapper/110:10:361
42332160,0sleep00-21swapper/009:44:180
302132150,0sleep30-21swapper/312:25:213
145862150,0sleep10-21swapper/111:33:451
20232140,0sleep10-21swapper/110:03:131
294132130,0sleep30-21swapper/308:30:203
24473991312,1cyclictest28-21ksoftirqd/207:15:002
192752130,0sleep00-21swapper/010:14:280
275742100,0sleep30-21swapper/311:00:203
2446499100,9cyclictest13981-21users09:05:290
244769994,3cyclictest283-21systemd-journal11:16:383
244689997,1cyclictest22-21ksoftirqd/110:35:011
244649990,8cyclictest7938-21ssh11:08:470
244769980,1cyclictest4988-21ssh12:09:583
244769980,1cyclictest4988-21ssh12:09:583
244739985,2cyclictest19023-21snmpd09:54:172
244689986,1cyclictest14418-21ssh10:51:521
244689984,3cyclictest283-21systemd-journal10:17:491
244689981,6cyclictest23603-21munin-run11:40:001
244649985,2cyclictest508-21dbus-daemon12:04:100
244649984,3cyclictest508-21dbus-daemon10:48:420
19185280,2sleep119259-21fschecks_count10:55:191
9770270,0sleep30-21swapper/309:47:203
244769974,2cyclictest508-21dbus-daemon10:10:453
244769974,2cyclictest508-21dbus-daemon10:04:533
244769974,2cyclictest508-21dbus-daemon08:41:033
244769974,2cyclictest508-21dbus-daemon07:39:203
244769973,3cyclictest508-21dbus-daemon12:20:503
244769973,3cyclictest283-21systemd-journal08:52:183
244769973,3cyclictest1-21systemd07:15:003
244769973,2cyclictest283-21systemd-journal12:03:463
244769973,1cyclictest0-21swapper/309:18:573
244769972,3cyclictest283-21systemd-journal09:51:333
244769972,3cyclictest283-21systemd-journal09:00:143
244739976,1cyclictest28-21ksoftirqd/211:55:012
244739975,2cyclictest28-21ksoftirqd/210:50:002
244739975,2cyclictest28-21ksoftirqd/209:25:012
244739975,1cyclictest28-21ksoftirqd/208:20:012
244739975,1cyclictest28-21ksoftirqd/208:20:012
244739973,3cyclictest31904-21ntpq08:35:302
244739973,3cyclictest19023-21snmpd09:34:282
244739972,3cyclictest283-21systemd-journal10:35:202
244739972,3cyclictest283-21systemd-journal07:36:502
244739971,5cyclictest29741-11brltty10:12:252
244689976,1cyclictest22-21ksoftirqd/107:20:011
244689975,1cyclictest0-21swapper/110:05:541
244689974,2cyclictest3956-21sshd11:05:321
244689973,3cyclictest5682-21sshd08:50:121
244689973,3cyclictest19023-21snmpd12:00:201
244689973,3cyclictest19023-21snmpd07:47:101
244689973,1cyclictest0-21swapper/109:48:361
244689971,5cyclictest0-21swapper/107:40:001
244689970,3cyclictest283-21systemd-journal09:15:001
244649974,2cyclictest508-21dbus-daemon11:13:170
244649973,3cyclictest508-21dbus-daemon08:15:110
244649973,3cyclictest508-21dbus-daemon08:15:110
244649973,3cyclictest283-21systemd-journal10:27:510
244649973,3cyclictest283-21systemd-journal08:23:570
244649973,3cyclictest22345-21ntpq12:20:200
244649973,2cyclictest283-21systemd-journal07:17:130
244649973,1cyclictest0-21swapper/012:36:180
244649970,4cyclictest11088-21turbostat12:35:000
244649970,1cyclictest0-21swapper/009:19:050
1601270,0sleep20-21swapper/207:30:012
11813270,0sleep00-21swapper/009:49:020
4921260,0sleep30-21swapper/312:30:173
25303260,0sleep00-21swapper/011:40:220
244769964,2cyclictest11736-21in:imuxsock07:41:253
244769963,2cyclictest508-21dbus-daemon07:55:103
244769963,2cyclictest502-21systemd-logind08:18:313
244769963,2cyclictest502-21systemd-logind08:18:313
244769963,2cyclictest4971-21gunzip10:25:233
244769963,2cyclictest30295-21cut07:20:233
244769963,2cyclictest20972-21ssh09:13:423
244769963,2cyclictest19268-21ssh11:36:133
244769963,2cyclictest18784-21ssh10:55:163
244769963,2cyclictest13674-21ssh10:51:153
244769963,2cyclictest1-21systemd08:46:533
244769963,2cyclictest11329-21sh12:35:003
244769963,2cyclictest10127-21tail07:45:263
244769963,2cyclictest0-21swapper/310:16:393
244769962,3cyclictest8185-21expr08:55:143
244769962,3cyclictest31933-21sed09:40:283
244769962,3cyclictest19452-21apt-get10:35:173
244769962,3cyclictest19023-21snmpd10:40:243
244769962,3cyclictest19023-21snmpd08:05:293
244769962,3cyclictest19023-21snmpd08:00:293
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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