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2022-06-29 - 13:58

x86 Intel Xeon E3-1220L V2 @2300 MHz, Linux 4.9.47-rt37 (Profile)

Latency plot of system in rack #a, 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 rackaslot0.osadl.org (updated Wed Jun 29, 2022 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
95342920,0sleep39533-21bash22:34:393
147652910,0sleep214762-21bash23:23:222
157612690,1sleep215729-21sshd23:32:312
127052640,0sleep339-21ksoftirqd/323:56:273
286232580,1sleep337-21rcuc/300:01:043
265662570,1sleep01776-21runrttasks23:18:270
223452570,1sleep30-21swapper/321:10:203
309522560,1sleep230931-21sshd00:31:162
309522560,1sleep230931-21sshd00:31:152
289282560,1sleep01776-21runrttasks22:45:260
155152560,1sleep115513-21sshd22:41:101
93942550,1sleep09395-21bash21:15:170
52582550,0sleep15257-21bash00:32:001
52582550,0sleep15257-21bash00:31:591
25092540,0sleep10-21swapper/121:26:441
115382540,2sleep31474299cyclictest23:10:573
282682530,1sleep21474199cyclictest23:51:542
170352530,0sleep10-21swapper/123:05:261
1314125322,4sleep10-21swapper/119:05:221
312782520,0sleep231268-21sshd23:43:092
71982510,1sleep17196-21sshd22:49:321
42542500,0sleep14238-21sshd00:05:111
1436825027,19sleep20-21swapper/219:08:362
1418425024,8sleep30-21swapper/319:06:173
104012500,0sleep20-21swapper/221:48:562
104012500,0sleep20-21swapper/221:48:562
214472490,1sleep30-21swapper/321:22:293
1412524824,19sleep00-21swapper/019:05:380
129992470,1sleep337-21rcuc/323:02:033
16162460,0sleep10-21swapper/122:58:011
258792450,1sleep025840-21sshd23:48:430
251912450,0sleep00-21swapper/022:39:100
211222450,1sleep321118-21sshd00:23:233
203792440,0sleep118926-21diskmemload22:11:141
198042440,0sleep118926-21diskmemload23:17:491
115202440,0sleep118926-21diskmemload22:04:251
47262430,0sleep10-21swapper/100:25:061
72552410,1sleep00-21swapper/000:11:520
273692400,0sleep30-21swapper/322:05:473
148952380,2sleep01473999cyclictest21:49:230
148952380,2sleep01473999cyclictest21:49:230
5452350,2sleep01473999cyclictest00:24:400
127622280,0sleep012761-21bash21:58:190
14740992220,1cyclictest13140-21sshd22:50:051
14742992119,1cyclictest0-21swapper/321:47:323
14742992119,1cyclictest0-21swapper/321:47:313
14740992119,1cyclictest1480-21sshd00:11:141
69562200,0sleep20-21swapper/221:42:312
69562200,0sleep20-21swapper/221:42:312
1474299200,19cyclictest0-21swapper/300:14:293
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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