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2021-09-27 - 05:55

Intel(R) Xeon(R) CPU E31220L @ 2.20GHz, Linux 3.18.43-rt46-fulldebug (Profile)

Latency plot of system in rack #b, slot #0
Note that this system runs a non-optimized debug kernel.
Data to construct the above plot have been generated using the RT test utility cyclictest.
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: ondemand
Characteristics of the 20 highest latencies:
System rackbslot0.osadl.org (updated Mon Sep 27, 2021 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1408127441,10sleep20-21swapper/201:03:192
1417427342,10sleep00-21swapper/001:04:130
1436726944,19sleep30-21swapper/301:06:333
1428226835,11sleep10-21swapper/101:05:311
242799610,3rtkit-daemon2426-21rtkit-daemon02:07:363
234812580,1sleep3361ktimersoftd/306:23:523
257182500,1sleep2281ktimersoftd/203:50:212
242799490,3rtkit-daemon19156-21sshd05:46:161
290762470,3sleep31464499cyclictest03:54:273
1463499474,37cyclictest29-21ksoftirqd/206:05:002
14634994626,9cyclictest19686-21sshd06:15:462
14634994429,9cyclictest17307-21sshd05:46:092
14634994028,6cyclictest11370-21sshd04:58:282
14615993926,10cyclictest122750irq/25-em105:40:180
14615993919,18cyclictest122750irq/25-em104:45:040
242799380,3rtkit-daemon0-21swapper/201:09:202
14634993725,6cyclictest26804-21sshd06:32:012
242799360,3rtkit-daemon0-21swapper/304:17:173
1463499366,20cyclictest0-21swapper/201:22:352
1463499366,20cyclictest0-21swapper/201:22:352
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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