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2023-02-07 - 20:14

x86 Intel Atom Z530 @1600 MHz, Linux 3.12.61-rt81 (Profile)

Latency plot of system in rack #1, slot #8
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
Compare latency of primary with shadow system
Characteristics of the 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack1slot8.osadl.org (updated Tue Feb 07, 2023 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
96522954934,13sleep10-21swapper/107:09:401
971999888788,94cyclictest0-21swapper/007:10:270
92712878855,15sleep00-21swapper/007:05:560
972099764680,47cyclictest10726-21munin-node07:10:271
971999434347,11cyclictest18941-21ssh09:11:580
211999940,4rtkit-daemon2118-21rtkit-daemon10:30:381
211999940,3rtkit-daemon22711-21gvfsd-trash09:21:431
211999900,3rtkit-daemon2118-21rtkit-daemon07:57:171
167282870,5sleep041ktimersoftd/010:02:340
211999820,4rtkit-daemon2118-21rtkit-daemon10:03:341
211999820,4rtkit-daemon2118-21rtkit-daemon08:26:220
211999820,4rtkit-daemon2118-21rtkit-daemon08:02:220
211999820,11rtkit-daemon29637-21kworker/0:110:07:141
211999810,4rtkit-daemon2118-21rtkit-daemon09:50:381
211999810,4rtkit-daemon2118-21rtkit-daemon09:33:530
211999810,4rtkit-daemon2118-21rtkit-daemon08:11:370
211999810,4rtkit-daemon2118-21rtkit-daemon07:33:160
211999800,4rtkit-daemon2118-21rtkit-daemon10:49:101
211999800,4rtkit-daemon2118-21rtkit-daemon07:25:061
211999800,4rtkit-daemon2118-21rtkit-daemon07:21:261
211999800,3rtkit-daemon2118-21rtkit-daemon09:56:591
211999790,4rtkit-daemon2118-21rtkit-daemon12:19:120
211999790,4rtkit-daemon2118-21rtkit-daemon11:23:210
211999790,4rtkit-daemon2118-21rtkit-daemon11:13:350
211999790,4rtkit-daemon2118-21rtkit-daemon11:06:450
211999790,4rtkit-daemon2118-21rtkit-daemon09:44:230
211999790,4rtkit-daemon2118-21rtkit-daemon09:15:031
211999790,4rtkit-daemon2118-21rtkit-daemon08:50:361
211999790,4rtkit-daemon2118-21rtkit-daemon07:54:470
211999790,4rtkit-daemon2118-21rtkit-daemon07:45:100
211999780,4rtkit-daemon2118-21rtkit-daemon12:39:270
211999780,4rtkit-daemon2118-21rtkit-daemon12:23:460
211999780,4rtkit-daemon2118-21rtkit-daemon12:16:371
211999780,4rtkit-daemon2118-21rtkit-daemon11:39:111
211999780,4rtkit-daemon2118-21rtkit-daemon11:28:011
211999780,4rtkit-daemon2118-21rtkit-daemon07:58:010
211999770,4rtkit-daemon2118-21rtkit-daemon12:11:360
211999770,4rtkit-daemon2118-21rtkit-daemon11:04:150
211999770,4rtkit-daemon2118-21rtkit-daemon10:44:300
211999770,4rtkit-daemon2118-21rtkit-daemon10:31:190
211999770,4rtkit-daemon2118-21rtkit-daemon09:46:270
211999770,4rtkit-daemon2118-21rtkit-daemon09:44:381
211999770,4rtkit-daemon2118-21rtkit-daemon09:34:331
211999770,4rtkit-daemon2118-21rtkit-daemon08:50:220
211999770,4rtkit-daemon2118-21rtkit-daemon08:38:070
211999770,4rtkit-daemon2118-21rtkit-daemon08:21:570
211999770,4rtkit-daemon2118-21rtkit-daemon07:52:061
211999770,4rtkit-daemon2118-21rtkit-daemon07:40:210
211999770,3rtkit-daemon2118-21rtkit-daemon11:42:411
211999760,4rtkit-daemon2118-21rtkit-daemon12:01:500
211999760,4rtkit-daemon2118-21rtkit-daemon11:46:510
211999760,4rtkit-daemon2118-21rtkit-daemon11:38:010
211999760,4rtkit-daemon2118-21rtkit-daemon11:30:510
211999760,4rtkit-daemon2118-21rtkit-daemon11:24:301
211999760,4rtkit-daemon2118-21rtkit-daemon11:16:450
211999760,4rtkit-daemon2118-21rtkit-daemon10:47:000
211999760,4rtkit-daemon2118-21rtkit-daemon10:37:040
211999760,4rtkit-daemon2118-21rtkit-daemon10:29:390
211999760,4rtkit-daemon2118-21rtkit-daemon10:23:340
211999760,4rtkit-daemon2118-21rtkit-daemon09:36:230
211999760,4rtkit-daemon2118-21rtkit-daemon09:36:220
211999760,4rtkit-daemon2118-21rtkit-daemon09:23:280
211999760,4rtkit-daemon2118-21rtkit-daemon09:15:080
211999760,4rtkit-daemon2118-21rtkit-daemon09:05:170
211999760,4rtkit-daemon2118-21rtkit-daemon08:48:420
211999760,4rtkit-daemon2118-21rtkit-daemon08:16:520
211999760,4rtkit-daemon2118-21rtkit-daemon08:06:210
211999760,4rtkit-daemon2118-21rtkit-daemon07:37:260
211999760,4rtkit-daemon2118-21rtkit-daemon07:16:560
211999750,4rtkit-daemon2118-21rtkit-daemon12:30:170
211999750,4rtkit-daemon2118-21rtkit-daemon12:27:470
211999750,4rtkit-daemon2118-21rtkit-daemon11:53:350
211999750,4rtkit-daemon2118-21rtkit-daemon11:26:360
211999750,4rtkit-daemon2118-21rtkit-daemon10:56:100
211999750,4rtkit-daemon2118-21rtkit-daemon10:51:300
211999750,4rtkit-daemon2118-21rtkit-daemon10:22:441
211999750,4rtkit-daemon2118-21rtkit-daemon10:08:180
211999750,4rtkit-daemon2118-21rtkit-daemon09:52:130
211999750,4rtkit-daemon2118-21rtkit-daemon08:42:420
211999750,4rtkit-daemon2118-21rtkit-daemon08:41:261
211999750,3rtkit-daemon2118-21rtkit-daemon09:09:271
211999740,4rtkit-daemon2118-21rtkit-daemon12:25:061
211999740,4rtkit-daemon2118-21rtkit-daemon08:58:020
211999740,4rtkit-daemon2118-21rtkit-daemon08:45:521
211999740,4rtkit-daemon2118-21rtkit-daemon07:29:560
211999740,3rtkit-daemon2118-21rtkit-daemon11:47:411
211999740,3rtkit-daemon2118-21rtkit-daemon11:34:511
211999730,4rtkit-daemon2118-21rtkit-daemon11:13:241
211999730,4rtkit-daemon2118-21rtkit-daemon09:00:270
211999730,33rtkit-daemon2118-21rtkit-daemon11:07:201
211999730,3rtkit-daemon2118-21rtkit-daemon10:27:141
211999730,3rtkit-daemon2118-21rtkit-daemon08:56:271
211999720,4rtkit-daemon2118-21rtkit-daemon10:38:101
9719997040,23cyclictest0-21swapper/009:56:480
211999700,4rtkit-daemon2118-21rtkit-daemon11:00:341
211999700,4rtkit-daemon2118-21rtkit-daemon09:28:331
9719996940,23cyclictest0-21swapper/008:33:200
211999690,3rtkit-daemon2118-21rtkit-daemon10:52:491
9719996829,32cyclictest0-21swapper/010:17:510
211999680,4rtkit-daemon2118-21rtkit-daemon09:36:481
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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