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2022-06-30 - 22:46

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 Thu Jun 30, 2022 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
132902523502,14sleep10-21swapper/107:09:341
131622507485,15sleep00-21swapper/007:08:170
1337799462389,45cyclictest0-21swapper/007:12:400
1337899411335,43cyclictest0-21swapper/107:12:401
2119991180,4rtkit-daemon2118-21rtkit-daemon11:20:231
2119991180,4rtkit-daemon2118-21rtkit-daemon11:20:231
2119991030,4rtkit-daemon2118-21rtkit-daemon12:15:291
310852990,2sleep041ktimersoftd/011:15:020
211999830,4rtkit-daemon2118-21rtkit-daemon11:49:130
211999800,4rtkit-daemon2118-21rtkit-daemon11:06:020
315472780,4chrt31549-21unixbench_singl10:20:250
211999750,4rtkit-daemon2118-21rtkit-daemon09:35:351
211999740,5rtkit-daemon2118-21rtkit-daemon12:05:240
211999740,4rtkit-daemon2118-21rtkit-daemon12:00:181
211999740,4rtkit-daemon2118-21rtkit-daemon10:55:071
211999740,3rtkit-daemon2118-21rtkit-daemon09:57:461
211999730,5rtkit-daemon2118-21rtkit-daemon09:09:351
211999730,4rtkit-daemon2118-21rtkit-daemon12:32:431
211999730,4rtkit-daemon2118-21rtkit-daemon07:21:341
211999730,3rtkit-daemon2118-21rtkit-daemon08:18:591
211999730,3rtkit-daemon13690-21unixbench_singl08:45:241
211999720,4rtkit-daemon2118-21rtkit-daemon11:46:431
211999720,4rtkit-daemon2118-21rtkit-daemon10:36:270
211999720,4rtkit-daemon2118-21rtkit-daemon09:12:550
211999710,5rtkit-daemon2118-21rtkit-daemon11:30:231
211999710,4rtkit-daemon2118-21rtkit-daemon11:59:481
211999710,4rtkit-daemon2118-21rtkit-daemon10:44:261
211999710,4rtkit-daemon2118-21rtkit-daemon08:27:441
211999710,3rtkit-daemon2118-21rtkit-daemon11:42:181
211999700,4rtkit-daemon2118-21rtkit-daemon10:24:461
211999700,4rtkit-daemon2118-21rtkit-daemon09:20:350
211999700,4rtkit-daemon2118-21rtkit-daemon08:52:291
211999700,27rtkit-daemon2118-21rtkit-daemon10:43:070
13377997014,34cyclictest0-21swapper/010:15:180
211999690,4rtkit-daemon2118-21rtkit-daemon11:56:070
211999690,4rtkit-daemon2118-21rtkit-daemon10:55:470
211999690,3rtkit-daemon2118-21rtkit-daemon12:12:441
211999690,3rtkit-daemon2118-21rtkit-daemon10:51:271
211999670,4rtkit-daemon2118-21rtkit-daemon11:16:170
13377996713,46cyclictest0-21swapper/007:49:230
211999660,4rtkit-daemon2118-21rtkit-daemon12:38:591
211999660,4rtkit-daemon2118-21rtkit-daemon12:14:590
211999660,4rtkit-daemon2118-21rtkit-daemon10:38:171
211999660,3rtkit-daemon2118-21rtkit-daemon08:09:391
211999660,3rtkit-daemon2118-21rtkit-daemon07:15:481
13377996631,24cyclictest0-21swapper/011:54:560
211999650,4rtkit-daemon2118-21rtkit-daemon07:50:140
211999640,4rtkit-daemon2118-21rtkit-daemon10:09:410
13377996422,33cyclictest0-21swapper/012:25:110
13377996416,32cyclictest0-21swapper/008:44:340
211999630,4rtkit-daemon2118-21rtkit-daemon07:28:391
211999630,3rtkit-daemon2118-21rtkit-daemon09:30:001
13377996333,24cyclictest0-21swapper/010:25:290
13377996323,32cyclictest0-21swapper/012:00:250
13377996312,34cyclictest0-21swapper/010:00:150
211999620,4rtkit-daemon2118-21rtkit-daemon09:34:551
13377996231,24cyclictest0-21swapper/010:14:420
1337799617,48cyclictest0-21swapper/009:45:010
1337799616,48cyclictest0-21swapper/009:25:210
61502605,15sleep10-21swapper/110:32:501
211999600,4rtkit-daemon2118-21rtkit-daemon10:48:071
211999600,4rtkit-daemon0-21swapper/011:32:130
211999600,3rtkit-daemon13375-21cyclictest07:22:390
1337799608,35cyclictest0-21swapper/009:15:240
13377996036,18cyclictest0-21swapper/008:55:210
13377996036,17cyclictest0-21swapper/009:55:250
211999590,4rtkit-daemon2118-21rtkit-daemon10:12:561
211999590,2rtkit-daemon13375-21cyclictest10:30:520
1337799599,34cyclictest0-21swapper/008:30:010
1337799597,44cyclictest0-21swapper/007:35:150
1337799597,44cyclictest0-21swapper/007:35:150
1337799596,46cyclictest0-21swapper/011:00:140
13377995935,18cyclictest0-21swapper/009:35:250
13377995935,17cyclictest0-21swapper/008:50:200
13377995932,21cyclictest0-21swapper/008:45:230
13377995912,40cyclictest0-21swapper/010:45:230
1337799587,44cyclictest0-21swapper/009:48:530
1337799586,34cyclictest0-21swapper/008:10:010
1337799585,36cyclictest0-21swapper/008:05:010
1337799585,33cyclictest0-21swapper/008:25:010
13377995834,17cyclictest0-21swapper/008:15:100
13377995832,20cyclictest0-21swapper/008:35:190
13377995825,16cyclictest0-21swapper/011:30:000
13377995817,34cyclictest0-21swapper/012:15:540
133502585,15sleep10-21swapper/111:39:281
1337799577,33cyclictest0-21swapper/011:35:340
1337799576,33cyclictest0-21swapper/010:54:500
1337799575,45cyclictest0-21swapper/012:30:210
1337799575,43cyclictest0-21swapper/012:25:000
1337799575,35cyclictest0-21swapper/007:25:010
13377995726,25cyclictest0-21swapper/007:57:100
13377995716,35cyclictest0-21swapper/011:40:230
13378995611,38cyclictest0-21swapper/108:44:091
1337799567,43cyclictest0-21swapper/009:51:510
1337799567,38cyclictest0-21swapper/007:16:520
1337799567,30cyclictest0-21swapper/011:20:180
1337799567,30cyclictest0-21swapper/011:20:170
301232554,20sleep10-21swapper/111:12:441
1337799555,34cyclictest0-21swapper/007:45:010
1337799555,33cyclictest0-21swapper/008:15:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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