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2022-07-05 - 09:45

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #8

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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x86 Intel Core i7-X990 @3470 MHz, Linux 5.10.47-rt46 (Profile)

Latency plot of shadow in rack #0, 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 --smi
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 highest latencies:
System rack0slot8s.osadl.org (updated Tue Jul 05, 2022 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1488529986,10sleep110-21swapper/1119:08:423
91780980,93rtkit-daemon0-21swapper/1019:08:512
299891970,87ptp4l0-21swapper/119:05:271
1402426854,10sleep60-21swapper/619:05:248
1311626150,8sleep00-21swapper/019:05:190
1469825544,9sleep50-21swapper/519:05:597
1468425543,10sleep40-21swapper/419:05:476
1432825542,10sleep70-21swapper/719:05:269
311422360,0sleep110-21swapper/1120:10:123
1533899227,9cyclictest0-21swapper/621:59:598
1533899202,13cyclictest21870-21kworker/u24:119:50:008
1531099192,16cyclictest0-21swapper/000:20:160
6362180,0sleep100-21swapper/1020:10:232
1533899182,10cyclictest0-21swapper/623:40:008
1531499181,6cyclictest0-21swapper/121:20:231
299891170,0ptp4l0-21swapper/120:15:191
1536099171,3cyclictest0-21swapper/1120:40:153
1534799170,16cyclictest0-21swapper/822:40:0010
1534199173,8cyclictest0-21swapper/721:25:019
1533899173,8cyclictest0-21swapper/600:10:008
1533899171,10cyclictest0-21swapper/622:35:008
1531499172,8cyclictest0-21swapper/120:45:011
1531099172,11cyclictest21906-21kworker/u24:123:55:000
1531099172,10cyclictest0-21swapper/021:00:010
299891160,2ptp4l11504-21gltestperf21:50:151
299891160,0ptp4l0-21swapper/120:35:251
1534799162,8cyclictest0-21swapper/823:20:0010
15347991613,2cyclictest0-21swapper/820:40:1610
1531999161,10cyclictest0-21swapper/221:25:014
1531099162,9cyclictest0-21swapper/019:30:000
299891150,1ptp4l21-21ksoftirqd/123:54:401
299891150,1ptp4l21-21ksoftirqd/121:25:131
299891150,0ptp4l0-21swapper/123:15:121
299891150,0ptp4l0-21swapper/122:25:121
299891150,0ptp4l0-21swapper/120:10:181
299891150,0ptp4l0-21swapper/119:45:151
299891150,0ptp4l0-21swapper/100:10:011
259022150,1sleep1201rcuc/122:50:181
1534799153,7cyclictest0-21swapper/800:35:0110
1534199153,8cyclictest0-21swapper/722:50:009
1534199153,7cyclictest0-21swapper/723:59:599
1534199153,7cyclictest0-21swapper/721:00:019
1534199153,7cyclictest0-21swapper/700:19:599
1533899153,7cyclictest0-21swapper/621:35:238
1533899152,7cyclictest0-21swapper/620:00:018
1533899151,8cyclictest0-21swapper/619:25:018
1531499153,7cyclictest0-21swapper/122:20:001
1531499152,8cyclictest0-21swapper/123:25:001
1531099152,8cyclictest0-21swapper/000:05:010
128372156,6sleep90-21swapper/919:05:1611
299891140,1ptp4l21-21ksoftirqd/121:05:121
299891140,0ptp4l0-21swapper/123:55:131
299891140,0ptp4l0-21swapper/121:00:201
299891140,0ptp4l0-21swapper/100:00:131
160572140,0sleep60-21swapper/619:10:128
1536099142,8cyclictest0-21swapper/1121:45:003
1534799143,7cyclictest0-21swapper/820:15:0110
1534799142,8cyclictest0-21swapper/820:55:0110
1534799142,7cyclictest0-21swapper/800:30:0110
1534199142,7cyclictest0-21swapper/720:10:009
1534199141,10cyclictest0-21swapper/722:30:009
1531999142,8cyclictest0-21swapper/219:10:014
1531499142,7cyclictest0-21swapper/100:10:011
15314991411,2cyclictest0-21swapper/120:55:011
1531099143,7cyclictest0-21swapper/019:50:010
1531099142,7cyclictest0-21swapper/023:20:000
1531099142,7cyclictest0-21swapper/020:10:230
299891130,5ptp4l0-21swapper/122:05:121
299891130,1ptp4l7060-21fw_forwarded_lo20:20:151
299891130,1ptp4l21-21ksoftirqd/123:36:001
299891130,1ptp4l21-21ksoftirqd/123:30:261
299891130,1ptp4l21-21ksoftirqd/122:35:201
299891130,1ptp4l21-21ksoftirqd/122:33:531
299891130,1ptp4l21-21ksoftirqd/122:10:221
299891130,1ptp4l21-21ksoftirqd/119:30:201
299891130,0ptp4l0-21swapper/122:20:131
299891130,0ptp4l0-21swapper/120:45:171
277091130,0getstats0-21swapper/200:35:114
1536099132,7cyclictest0-21swapper/1120:30:013
15360991311,1cyclictest0-21swapper/1100:30:003
1535699131,8cyclictest0-21swapper/1019:15:012
1534799132,6cyclictest0-21swapper/800:25:0010
1534799130,8cyclictest0-21swapper/820:40:0110
1534199132,7cyclictest0-21swapper/722:30:009
1534199131,8cyclictest0-21swapper/700:30:009
1533899133,6cyclictest0-21swapper/623:43:368
1533899132,7cyclictest0-21swapper/620:35:018
1533899132,6cyclictest0-21swapper/621:00:258
1531499133,6cyclictest0-21swapper/121:30:001
1531499132,7cyclictest0-21swapper/123:30:001
1531499132,7cyclictest0-21swapper/123:05:001
1531499130,12cyclictest31297-21head23:40:151
299891120,5ptp4l21-21ksoftirqd/100:30:191
299891120,2ptp4l21030-21diskstats22:45:221
299891120,1ptp4l21-21ksoftirqd/100:19:291
299891120,1ptp4l0-21swapper/119:20:141
299891120,0ptp4l0-21swapper/121:45:241
299891120,0ptp4l0-21swapper/121:10:131
299891120,0ptp4l0-21swapper/120:55:141
299891120,0ptp4l0-21swapper/120:30:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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