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2022-07-06 - 05:58

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, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack7slot3s.osadl.org (updated Wed Jul 06, 2022 00:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2128499995,61cyclictest0-21swapper/000:31:100
2128499952,44cyclictest9559-21tail22:06:250
2128499931,13cyclictest0-21swapper/023:46:080
141652930,2sleep30-21swapper/320:20:573
21284998915,38cyclictest0-21swapper/019:16:090
21284998817,35cyclictest0-21swapper/022:51:090
21288998625,52cyclictest7850irq/56-dwc_otg19:26:091
37452840,5sleep12128899cyclictest00:11:121
121142840,4sleep121276-21cyclictest22:55:081
117142840,3sleep211076-21/usr/sbin/munin21:26:162
216242800,2sleep10-21swapper/100:35:401
65162790,3sleep30-21swapper/321:19:453
2128499796,57cyclictest0-21swapper/023:06:090
2128899751,58cyclictest25061-21munin-node20:51:061
186902740,2sleep20-21swapper/222:20:032
283512730,2sleep30-21swapper/322:31:473
2128499732,6cyclictest1017-21snmpd19:26:090
2128899721,50cyclictest1146-21ssh22:40:041
2128899721,50cyclictest1146-21ssh22:40:041
2128899711,49cyclictest24851-21ssh00:39:341
2128499714,35cyclictest0-21swapper/020:56:080
302972700,2sleep10-21swapper/122:35:561
2128899702,40cyclictest2419150ssh23:11:111
2128899701,48cyclictest5398-21/usr/sbin/munin22:46:121
21284997031,10cyclictest0-21swapper/020:36:080
205482700,2sleep30-21swapper/319:06:243
205482700,2sleep30-21swapper/319:06:243
2128899691,54cyclictest19463-21ssh23:04:451
2128899691,49cyclictest4354-21ssh22:44:101
2128899691,47cyclictest2318-21ssh23:25:371
2128899691,47cyclictest2318-21ssh23:25:371
2128899691,44cyclictest18501-21ssh22:19:391
2128899691,41cyclictest24113-21/usr/sbin/munin22:26:221
2128899681,52cyclictest19560-21cpu22:21:111
246662670,3sleep021276-21cyclictest23:11:170
2128899673,44cyclictest0-21swapper/120:46:051
2128899671,50cyclictest22891-21ssh23:09:001
2128899671,45cyclictest5125-21apt-get19:56:071
2128499675,13cyclictest0-21swapper/023:39:090
221272660,2sleep20-21swapper/200:36:092
2128899661,49cyclictest13969-21rm21:29:501
2128899661,46cyclictest4657-21ssh23:27:361
2128899661,46cyclictest17899-21ssh21:35:181
2128899652,40cyclictest12041-21ssh22:11:071
2128899651,61cyclictest1024850ssh21:24:431
2128899651,46cyclictest27950-21chrt21:47:571
2128899651,42cyclictest7810-21/usr/sbin/munin00:16:181
21288996429,7cyclictest7850irq/56-dwc_otg23:39:091
2128899641,52cyclictest24332-21ssh21:43:061
2128899641,50cyclictest31594-21ssh21:52:511
2128899641,41cyclictest25639-21ntpq19:21:191
2128899641,39cyclictest16075-21ssh23:00:301
2128499643,43cyclictest0-21swapper/023:56:240
2128899631,52cyclictest8915-21ssh23:33:441
2128899631,49cyclictest5410-21ssh21:17:251
2128899631,45cyclictest2668-21ssh21:57:201
2128899631,45cyclictest2668-21ssh21:57:201
2128899631,41cyclictest18615-21/usr/sbin/munin23:46:251
2128899631,39cyclictest28626-21aten_rbpower_po19:31:091
2128899631,39cyclictest21355-21ssh23:51:061
2128899621,47cyclictest8849-21ssh22:06:161
2128899621,45cyclictest29653-21ssh23:17:391
2128899621,44cyclictest11508-21/usr/sbin/munin20:11:231
2128899621,44cyclictest0-21swapper/121:12:071
2128899621,43cyclictest28051-21users20:56:241
2128899621,38cyclictest17604-21ssh00:30:011
2128499622,44cyclictest15249-21unixbench_singl23:41:240
2128499622,44cyclictest15249-21unixbench_singl23:41:240
2128499622,43cyclictest0-21swapper/022:00:560
2128499622,43cyclictest0-21swapper/022:00:560
2128899606,10cyclictest7850irq/56-dwc_otg00:01:081
2128899602,41cyclictest0-21swapper/120:45:431
2128899601,44cyclictest28119-21ssh00:00:071
2128899601,44cyclictest2425-21ssh00:08:571
2128899601,40cyclictest14126-21ssh00:25:401
2128899601,39cyclictest21718-21ssh21:40:301
2128899601,36cyclictest15703-21runrttasks23:42:211
2128899601,36cyclictest15703-21runrttasks23:42:211
2128499602,43cyclictest10809-21sh21:25:560
2128499602,36cyclictest0-21swapper/021:16:170
21284996023,5cyclictest7950irq/56-dwc_otg_23:51:280
2128499601,43cyclictest23168-21/usr/sbin/munin22:26:160
2128899591,41cyclictest0-21swapper/120:05:341
2128899591,37cyclictest16073-21aten_rbpower_cu20:26:091
2128899591,36cyclictest32153-21apt-get19:41:071
21284995932,5cyclictest32101-21apt-get00:05:560
2128499592,41cyclictest11699-21processes00:21:210
2128499586,43cyclictest0-21swapper/022:46:090
2128499581,11cyclictest0-21swapper/022:01:110
2128899571,38cyclictest5548-21sensors22:01:241
2128499571,44cyclictest0-21swapper/019:51:150
2128499571,44cyclictest0-21swapper/019:51:150
2128499571,41cyclictest18859-21ssh21:36:130
2128899561,38cyclictest8050irq/56-dwc_otg_20:25:571
2128899561,38cyclictest8050irq/56-dwc_otg_20:25:571
2128899561,38cyclictest13835-21taskset20:20:141
2128899561,37cyclictest1008-21runrttasks19:15:131
2128499562,9cyclictest259592sleep021:46:070
2128499562,7cyclictest6518-21ssh23:31:060
21284995617,28cyclictest31358-21ntp_kernel_pll_22:36:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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