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2021-01-21 - 03:55

Intel(R) Xeon(R) CPU E31220 @ 3.10GHz, Linux 4.19.8-rt6 (Profile)

Latency plot of system in rack #1, slot #0
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
Characteristics of the 50 highest latencies:
System rack1slot0.osadl.org (updated Thu Jan 21, 2021 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1945421090,0sleep20-21swapper/223:22:572
1945421090,0sleep20-21swapper/223:22:572
331721060,2sleep02033599cyclictest22:25:070
61992870,2sleep22034899cyclictest21:47:022
138352850,2sleep02033599cyclictest21:21:000
223632820,0sleep20-21swapper/200:21:342
69442650,0sleep10-21swapper/121:23:301
204522650,1sleep120450-21lspci00:24:141
300072630,2sleep12034199cyclictest23:51:441
170992630,0sleep017093-21bash00:35:060
275492620,0sleep30-21swapper/322:00:453
235672610,0sleep10-21swapper/122:38:051
76002600,4sleep37595-21lspci21:35:173
136392600,1sleep013634-21lspci21:14:510
251812590,1sleep00-21swapper/022:09:280
198102590,0sleep30-21swapper/322:43:203
87742580,0sleep30-21swapper/321:23:403
207212580,1sleep120724-21systemd-cgroups21:18:371
274442570,0sleep20-21swapper/200:05:192
2020125734,7sleep00-21swapper/019:09:300
1995425734,7sleep30-21swapper/319:06:483
162852570,0sleep10-21swapper/100:29:261
78852550,2sleep02033599cyclictest00:20:160
1990425533,7sleep10-21swapper/119:06:181
193622550,0sleep20-21swapper/221:42:222
156342540,0sleep20-21swapper/223:08:112
128572540,0sleep30-21swapper/323:36:203
263482530,0sleep226326-21cp00:38:452
265202520,0sleep30-21swapper/323:00:433
1997024635,7sleep20-21swapper/219:06:592
174432450,2sleep0111rcuc/023:16:580
131812410,0sleep10-21swapper/100:01:221
185412340,0sleep1241ktimersoftd/123:34:061
317512230,0sleep00-21swapper/022:52:500
274172230,0sleep10-21swapper/122:41:101
300402190,0sleep10-21swapper/121:28:341
133052190,0sleep10-21swapper/122:45:301
120472190,0sleep00-21swapper/022:20:050
17002180,0sleep10-21swapper/123:06:571
167762170,0sleep3391rcuc/300:35:053
307692160,0sleep30-21swapper/300:00:083
194972160,0sleep00-21swapper/021:39:270
171242160,0sleep00-21swapper/000:26:410
15592150,0sleep00-21swapper/022:19:090
66392140,0sleep20-21swapper/222:16:352
247632140,0sleep00-21swapper/022:46:330
2034899132,3cyclictest33-21ksoftirqd/223:36:132
20348991313,0cyclictest662-40kipmi021:00:082
2034899131,1cyclictest33-21ksoftirqd/223:40:052
2035399120,1cyclictest793-21dbus-daemon22:55:283
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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