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2022-06-29 - 16:02

x86 Intel Core i3-4360 CPU @3700 MHz, Linux 5.14.2-rt21 (Profile)

Latency plot of system in rack #0, slot #4
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 50 highest latencies:
System rack0slot4.osadl.org (updated Wed Jun 29, 2022 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1265394211983,27sleep20-21swapper/219:05:502
1265843211668,39sleep00-21swapper/019:09:330
1265388210870,29sleep10-21swapper/119:05:451
126382229968,24sleep30-21swapper/319:05:073
1266145999811,52cyclictest0-21swapper/121:19:421
1266145999613,49cyclictest0-21swapper/123:39:421
1266145999310,49cyclictest0-21swapper/119:59:421
1266145999211,46cyclictest0-21swapper/123:14:421
1266145999210,50cyclictest0-21swapper/120:24:411
1266145999111,47cyclictest0-21swapper/122:49:421
1266145999111,47cyclictest0-21swapper/121:44:421
126614599879,46cyclictest0-21swapper/119:34:411
126614599869,46cyclictest0-21swapper/120:44:421
1266145997510,45cyclictest0-21swapper/122:04:421
1266145997211,48cyclictest0-21swapper/122:29:421
1266145997111,48cyclictest0-21swapper/119:14:421
1266144996360,3cyclictest1275000-21sensors19:35:270
1266144996261,1cyclictest1101-21snmpd22:05:070
1266147996159,1cyclictest1111439-21gnome-shell23:15:583
1266146996059,1cyclictest1101-21snmpd22:30:132
1266146996059,1cyclictest1101-21snmpd22:30:122
1266145996059,1cyclictest1371687-21sensors22:35:241
1266145996059,1cyclictest1358419-21sensors22:20:221
1266145996059,1cyclictest1299859-21sensors20:55:281
1266144996059,1cyclictest1424672-21sensors23:35:190
1266147995958,1cyclictest1111439-21gnome-shell00:20:593
1266146995958,1cyclictest1424666-21sensors23:35:192
1266146995956,3cyclictest1101-21snmpd20:39:502
1266144995957,1cyclictest1315771-21sensors21:25:270
1266147995857,1cyclictest1288356-21kworker/3:121:27:583
1266147995856,1cyclictest1402580-21sensors23:10:193
1266146995755,1cyclictest1420253-21sensors23:30:182
1266145995756,1cyclictest1477657-21sensors00:35:191
1266147995655,1cyclictest1424670-21sensors23:35:193
1266145995655,1cyclictest1101-21snmpd19:19:341
1266144995655,1cyclictest1380517-21sensors22:45:230
1266144995654,1cyclictest1407011-21sensors23:15:200
14300502550,1sleep10-21swapper/123:41:301
1266147995552,2cyclictest1111439-21gnome-shell23:22:593
1266145995554,1cyclictest1455603-21sensors00:10:191
14175562540,0sleep10-21swapper/123:27:491
1266144995452,2cyclictest1303897-21diskmemload21:45:030
1266144995450,4cyclictest0-21swapper/023:55:270
1266147995352,1cyclictest0-21swapper/323:50:203
1266146995351,1cyclictest1101-21snmpd21:45:032
1266145995310,43cyclictest0-21swapper/123:24:421
1266144995352,1cyclictest0-21swapper/019:15:010
1266144995350,2cyclictest1111439-21gnome-shell22:55:580
1266144995350,2cyclictest1111439-21gnome-shell22:53:580
1266147995249,2cyclictest1111439-21gnome-shell22:07:593
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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