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2021-01-21 - 03:02

Intel(R) Xeon(R) CPU E3-1220L V2 @ 2.30GHz, Linux 4.4.39-rt50+ (Profile)

Latency plot of system in rack #7, 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 rack7slot0.osadl.org (updated Thu Jan 21, 2021 00:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
110050650,0irq/25-eth00-21swapper/319:07:283
110050650,0irq/25-eth00-21swapper/119:05:291
110050600,0irq/25-eth00-21swapper/219:05:342
117950510,0irq/26-eth1-rx-0-21swapper/019:08:380
9950210,0irq/24-0000:00:0-21swapper/219:10:002
191200,0ktimersoftd/14494-21sshd23:42:241
351190,0ktimersoftd/30-21swapper/323:42:233
271190,0ktimersoftd/24495-21sshd23:42:232
271180,0ktimersoftd/2343-21sshd22:38:572
271180,0ktimersoftd/227404-21sshd00:21:402
1736799180,0cyclictest0-21swapper/321:17:583
1736799170,0cyclictest0-21swapper/300:29:103
110050160,0irq/25-eth010870-21sshd22:21:272
17367991514,0cyclictest0-21swapper/322:25:013
17367991512,0cyclictest0-21swapper/323:25:453
1736799150,0cyclictest0-21swapper/300:05:563
1736599150,0cyclictest0-21swapper/121:25:111
17364991514,0cyclictest0-21swapper/000:09:440
1736499150,0cyclictest7138-21diskmemload21:25:080
41140,0ktimersoftd/00-21swapper/021:12:440
17367991413,0cyclictest0-21swapper/323:11:003
1736799140,0cyclictest6801-21seq19:55:043
17366991413,0cyclictest8024-21id23:01:382
17366991413,0cyclictest0-21swapper/222:05:392
1736699140,0cyclictest0-21swapper/200:38:042
17365991414,0cyclictest110050irq/25-eth023:47:151
17365991413,0cyclictest0-21swapper/123:03:011
1736599140,0cyclictest0-21swapper/123:09:161
1736599140,0cyclictest0-21swapper/122:24:121
17364991414,0cyclictest110050irq/25-eth023:56:510
1736499140,0cyclictest0-21swapper/021:48:570
110050140,0irq/25-eth020096-21bash21:19:161
41130,0ktimersoftd/00-21swapper/022:07:190
351130,0ktimersoftd/30-21swapper/321:11:293
17367991313,0cyclictest0-21swapper/323:32:023
17367991312,0cyclictest7138-21diskmemload22:51:163
17367991312,0cyclictest0-21swapper/321:57:493
17367991312,0cyclictest0-21swapper/321:25:453
17367991310,0cyclictest0-21swapper/300:32:193
17366991312,0cyclictest6501-21bash23:16:232
17366991312,0cyclictest0-21swapper/223:36:302
1736699130,0cyclictest0-21swapper/219:20:162
17365991312,0cyclictest28590-21sshd22:31:041
17365991312,0cyclictest0-21swapper/121:51:071
17365991312,0cyclictest0-21swapper/121:12:111
17365991311,0cyclictest15196-21sshd22:06:051
1736599130,0cyclictest0-21swapper/122:49:321
1736599130,0cyclictest0-21swapper/121:56:051
17364991312,0cyclictest0-21swapper/023:40:490
17364991312,0cyclictest0-21swapper/020:15:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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