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2023-03-20 - 21:06

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 Mar 20, 2023 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
290192328264,19sleep00-21swapper/007:05:330
292272314284,20sleep10-21swapper/107:08:111
291732280249,20sleep20-21swapper/207:07:282
291672263231,20sleep30-21swapper/307:07:243
208322190,0sleep10-21swapper/110:10:231
107672180,0sleep10-21swapper/110:24:561
90912140,0sleep20-21swapper/212:23:262
77512140,0sleep00-21swapper/009:22:080
234802140,0sleep00-21swapper/011:32:060
117962130,0sleep30-21swapper/310:05:163
112452130,0chrt0-21swapper/211:25:032
103852130,0sleep10-21swapper/111:04:401
223282110,1sleep30-21swapper/309:30:473
2949099102,7cyclictest27215-21rm12:34:560
294969994,3cyclictest283-21systemd-journal09:02:562
294969993,4cyclictest19340-21awk09:10:002
294959997,1cyclictest22-21ksoftirqd/107:20:011
294959990,8cyclictest0-21swapper/108:45:161
295009980,7cyclictest6194-21ssh10:41:213
294959984,3cyclictest283-21systemd-journal07:38:161
294959983,3cyclictest283-21systemd-journal09:35:031
294959982,3cyclictest3758-21snmpd10:31:011
4712270,1sleep14713-21ssh09:40:221
31789270,0sleep20-21swapper/212:17:092
295009974,2cyclictest508-21dbus-daemon07:56:363
295009974,2cyclictest283-21systemd-journal12:34:013
295009974,2cyclictest12639-21sh08:55:003
295009973,3cyclictest0-21swapper/310:45:243
295009972,4cyclictest3758-21snmpd10:30:263
295009972,1cyclictest0-21swapper/312:00:203
295009970,3cyclictest283-21systemd-journal09:27:083
294969975,1cyclictest4572-21ntpq12:00:222
294969974,2cyclictest508-21dbus-daemon12:34:012
294969973,3cyclictest508-21dbus-daemon07:30:012
294969973,3cyclictest4184-21diskstats09:40:202
294969973,3cyclictest20221-21diskstats09:50:232
294969970,1cyclictest7688-21ssh10:42:322
294959976,1cyclictest22-21ksoftirqd/111:00:001
294959974,2cyclictest283-21systemd-journal11:28:071
294959973,3cyclictest508-21dbus-daemon12:10:151
294959973,3cyclictest13640-21users09:25:221
294959973,3cyclictest11629-21ntpq08:50:171
294959972,3cyclictest283-21systemd-journal11:40:381
294959972,3cyclictest283-21systemd-journal08:45:001
294909976,1cyclictest0-21swapper/010:38:370
294909974,2cyclictest283-21systemd-journal08:34:450
294909973,3cyclictest508-21dbus-daemon12:11:050
294909973,3cyclictest508-21dbus-daemon10:56:500
294909973,3cyclictest3758-21snmpd10:50:510
294909973,3cyclictest3758-21snmpd10:32:380
294909973,1cyclictest0-21swapper/011:51:080
294909972,3cyclictest283-21systemd-journal11:11:250
294909972,3cyclictest283-21systemd-journal07:14:290
294909970,6cyclictest283-21systemd-journal07:45:010
295009966,0cyclictest0-21swapper/311:38:003
295009966,0cyclictest0-21swapper/309:49:533
295009963,2cyclictest6834-21ssh10:21:473
295009963,2cyclictest5095-21sh11:40:243
295009963,2cyclictest508-21dbus-daemon10:18:523
295009963,2cyclictest508-21dbus-daemon09:10:003
295009963,2cyclictest3758-21snmpd11:06:243
295009963,2cyclictest3758-21snmpd08:35:253
295009963,2cyclictest3758-21snmpd07:31:083
295009963,2cyclictest3708-21ssh09:40:163
295009963,2cyclictest31321-21ssh09:36:343
295009963,2cyclictest29741-11brltty09:15:023
295009963,2cyclictest28730-21ssh11:55:213
295009963,2cyclictest283-21systemd-journal11:53:593
295009963,2cyclictest27061-21idleruntime-cro11:15:003
295009963,2cyclictest13591-21/usr/sbin/munin07:45:163
295009963,1cyclictest0-21swapper/311:45:093
295009963,1cyclictest0-21swapper/310:10:393
295009962,3cyclictest508-21dbus-daemon09:55:013
295009962,3cyclictest3758-21snmpd12:16:013
295009962,3cyclictest3758-21snmpd11:33:363
295009962,3cyclictest3758-21snmpd11:26:063
295009962,3cyclictest3758-21snmpd09:24:023
295009962,3cyclictest3758-21snmpd09:04:593
295009962,3cyclictest3758-21snmpd08:41:343
295009962,3cyclictest3758-21snmpd08:32:103
295009962,3cyclictest3758-21snmpd08:17:433
295009962,3cyclictest3758-21snmpd08:10:273
295009962,3cyclictest3758-21snmpd07:21:533
295009962,3cyclictest3758-21snmpd07:10:083
295009962,3cyclictest28575-21cat11:15:183
295009962,3cyclictest23462-21cat08:05:163
295009962,3cyclictest20921-21ntpq09:10:193
295009962,3cyclictest19610-21seq10:50:183
295009962,3cyclictest14084-21readlink08:55:193
295009962,3cyclictest11944-21ls12:05:203
295009962,3cyclictest11646-21expr10:25:153
295009962,1cyclictest0-21swapper/312:20:463
295009962,1cyclictest0-21swapper/312:13:173
295009961,3cyclictest283-21systemd-journal12:25:163
295009961,3cyclictest283-21systemd-journal10:39:443
295009961,3cyclictest283-21systemd-journal08:27:043
295009960,6cyclictest0-21swapper/311:24:033
295009960,0cyclictest0-21swapper/310:03:563
294969966,0cyclictest0-21swapper/211:00:212
294969966,0cyclictest0-21swapper/210:26:332
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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