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2022-07-05 - 08:53

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #3

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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ARM Broadcom BCM2835 @1400 MHz, Linux 4.18.16-rt9 (Profile)

Latency plot of shadow in rack #7, slot #3
Data to construct the above plot have been generated using the RT test utility cyclictest.
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 highest latencies:
System rack7slot3s.osadl.org (updated Tue Jul 05, 2022 00:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
159962860,2sleep00-21swapper/022:36:230
76712830,6sleep2557199cyclictest23:52:212
149252760,2sleep30-21swapper/323:19:253
556999726,20cyclictest0-21swapper/022:41:080
556999712,8cyclictest24343-21ssh21:21:050
556999712,8cyclictest24343-21ssh21:21:050
5569997016,12cyclictest0-21swapper/000:21:080
557099682,19cyclictest8050irq/56-dwc_otg_22:46:161
556999676,33cyclictest0-21swapper/021:31:070
5569996711,12cyclictest0-21swapper/019:11:060
556999662,37cyclictest0-21swapper/020:16:060
93112640,2sleep00-21swapper/021:44:260
5569996317,6cyclictest0-21swapper/023:31:150
5569996235,5cyclictest0-21swapper/019:26:120
5569996216,3cyclictest0-21swapper/021:36:060
275532620,1sleep30-21swapper/321:25:373
275532620,1sleep30-21swapper/321:25:373
5570996121,27cyclictest0-21swapper/121:41:081
556999606,20cyclictest0-21swapper/019:31:090
5569996028,4cyclictest8886-21ssh00:40:090
557299595,9cyclictest0-21swapper/321:26:073
557099597,20cyclictest0-21swapper/122:16:081
5569995913,3cyclictest0-21swapper/000:20:010
315832590,1sleep20-21swapper/221:30:552
74622580,2sleep07465-21aten_rbpower_cu22:26:090
556999582,32cyclictest0-21swapper/019:36:090
556999582,32cyclictest0-21swapper/019:36:090
5569995735,5cyclictest6959-21grep20:41:220
5569995729,13cyclictest7950irq/56-dwc_otg_23:00:540
556999562,34cyclictest0-21swapper/022:55:560
556999562,34cyclictest0-21swapper/022:55:560
556999556,37cyclictest0-21swapper/020:26:070
5569995530,6cyclictest14562-21basename22:35:550
5569995526,17cyclictest20267-21idleruntime-cro21:15:550
5569995522,5cyclictest7850irq/56-dwc_otg23:21:060
556999551,27cyclictest0-21swapper/019:16:080
557199547,28cyclictest0-21swapper/219:56:082
556999541,27cyclictest28834-21ssh22:11:090
112052540,2sleep00-21swapper/023:57:020
556999536,4cyclictest0-21swapper/020:01:050
556999533,10cyclictest0-21swapper/000:01:090
5569995315,20cyclictest9550irq/48-DMA16:29:390
556999531,26cyclictest0-21swapper/022:16:070
5569995312,23cyclictest0-21swapper/021:27:360
5569995310,5cyclictest0-21swapper/020:56:080
118892530,1sleep30-21swapper/323:15:553
5569995233,12cyclictest101ktimersoftd/000:35:560
5569995219,15cyclictest7850irq/56-dwc_otg23:50:550
5569995219,15cyclictest7850irq/56-dwc_otg23:50:550
5569995215,20cyclictest0-21swapper/023:11:070
5569995211,23cyclictest27430-21sh23:36:120
5569995126,6cyclictest21838-21/usr/sbin/munin19:56:090
5569995125,6cyclictest32358-21unixbench_multi00:26:240
556999512,30cyclictest0-21swapper/020:51:180
556999512,28cyclictest0-21swapper/021:20:350
5569995116,32cyclictest101ktimersoftd/023:01:460
5569995116,19cyclictest0-21swapper/020:21:070
556999511,38cyclictest20062-21fschecks_time23:26:110
556999511,38cyclictest20062-21fschecks_time23:26:110
5569995111,7cyclictest2565-21fschecks_time20:31:140
556999511,13cyclictest16561-21diskmemload22:01:170
5569995022,14cyclictest28349-21unixbench_multi20:11:210
556999501,27cyclictest13255-21aten_rbpower_po21:01:100
556999497,23cyclictest15332-21ls21:06:130
556999493,5cyclictest0-21swapper/021:46:090
556999491,14cyclictest0-21swapper/022:06:120
556999491,14cyclictest0-21swapper/022:06:120
557299487,21cyclictest7950irq/56-dwc_otg_20:16:063
5569994826,4cyclictest8050irq/56-dwc_otg_00:06:120
5569994823,10cyclictest101ktimersoftd/022:00:260
5569994813,6cyclictest0-21swapper/022:21:060
556999481,28cyclictest16561-21diskmemload23:06:200
556999481,28cyclictest16561-21diskmemload23:06:200
556999475,25cyclictest9-21ksoftirqd/020:36:220
556999472,22cyclictest12534-21grep23:16:120
557299467,26cyclictest0-21swapper/320:21:103
557299467,25cyclictest0-21swapper/319:26:083
557299467,24cyclictest0-21swapper/300:21:083
557299466,25cyclictest0-21swapper/320:06:073
5570994622,5cyclictest748850wget19:16:101
5569994626,5cyclictest7950irq/56-dwc_otg_00:11:050
556999461,25cyclictest20159-21grep19:51:090
557299457,25cyclictest0-21swapper/320:01:083
557199456,4cyclictest7850irq/56-dwc_otg22:31:062
557199456,26cyclictest0-21swapper/221:01:092
557199452,7cyclictest8050irq/56-dwc_otg_23:56:082
557099457,27cyclictest0-21swapper/121:46:091
556999456,26cyclictest0-21swapper/020:46:010
5569994519,13cyclictest6976-21ssh23:51:240
556999451,25cyclictest31393-21kworker/u8:122:50:550
78822440,3sleep10-21swapper/122:26:141
557299447,25cyclictest0-21swapper/320:56:093
557299447,25cyclictest0-21swapper/300:01:103
557199444,11cyclictest7950irq/56-dwc_otg_22:41:062
5571994423,5cyclictest30010-21/usr/sbin/munin22:11:242
557099447,22cyclictest0-21swapper/119:56:081
556999446,17cyclictest13-21rcuc/023:41:060
556999441,40cyclictest9390-21ls19:21:100
5569994412,19cyclictest16734-21fschecks_time19:41:120
557299437,22cyclictest0-21swapper/322:21:083
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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