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2021-01-21 - 03:59

Intel(R) Core(TM) i5-7300U CPU @ 2.60GHz, Linux 5.0.21-rt16 (Profile)

Latency plot of system in rack #1, slot #1
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 rack1slot1.osadl.org (updated Thu Jan 21, 2021 00:45:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
157942201165,24sleep20-21swapper/219:07:472
157182200162,25sleep30-21swapper/319:06:473
156212200160,26sleep00-21swapper/019:05:320
158182199161,25sleep10-21swapper/119:08:061
177712720,0sleep20-21swapper/220:25:002
319612700,1sleep21607599cyclictest23:35:052
323202600,0sleep30-21swapper/321:42:233
11432550,0sleep00-21swapper/000:12:480
248432200,1sleep024850-21switchtime22:10:120
248432200,1sleep024850-21switchtime22:10:120
140022160,0sleep30-21swapper/321:59:133
12752140,0sleep20-21swapper/223:00:042
1607599130,12cyclictest0-21swapper/222:16:422
1606999130,13cyclictest0-21swapper/119:20:521
1606999130,0cyclictest0-21swapper/123:49:351
1606999130,0cyclictest0-21swapper/123:49:351
106582130,0sleep20-21swapper/223:10:102
1606999120,12cyclictest0-21swapper/122:08:481
1606999120,12cyclictest0-21swapper/121:46:271
1606999120,12cyclictest0-21swapper/120:50:261
1606999120,12cyclictest0-21swapper/120:28:031
1606999120,0cyclictest0-21swapper/123:27:111
1606999120,0cyclictest0-21swapper/121:01:391
1606999120,0cyclictest0-21swapper/120:16:511
1606999120,0cyclictest0-21swapper/119:54:281
1606999120,0cyclictest0-21swapper/119:32:041
16069991111,0cyclictest21-21ksoftirqd/122:55:441
16069991111,0cyclictest21-21ksoftirqd/122:28:101
1606999110,7cyclictest21-21ksoftirqd/123:05:031
1606999110,11cyclictest0-21swapper/121:24:031
1606999110,11cyclictest0-21swapper/120:05:391
1606999110,0cyclictest0-21swapper/123:04:471
1606999110,0cyclictest0-21swapper/122:42:241
16079991010,0cyclictest35-21ksoftirqd/321:18:533
1607599101,5cyclictest20329-21apt-get22:45:032
1607599100,10cyclictest0-21swapper/221:19:022
1607599100,0cyclictest0-21swapper/221:41:532
1606999109,1cyclictest21-21ksoftirqd/122:02:531
1606999105,4cyclictest21-21ksoftirqd/100:02:241
1606999102,7cyclictest111rcu_preempt23:40:061
1606999100,0cyclictest0-21swapper/122:31:121
160759999,0cyclictest0-21swapper/222:53:002
160699999,0cyclictest21-21ksoftirqd/121:43:541
160699999,0cyclictest111rcu_preempt21:32:261
160699999,0cyclictest111rcu_preempt19:45:001
160699998,1cyclictest21-21ksoftirqd/123:51:421
160699998,1cyclictest21-21ksoftirqd/123:36:371
160699998,1cyclictest21-21ksoftirqd/123:32:351
160699998,1cyclictest21-21ksoftirqd/123:15:141
160699998,1cyclictest21-21ksoftirqd/122:35:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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