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2022-05-20 - 07:09

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #4

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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  Intel

x86 Intel Core i7-E610 @2530 MHz, Linux 5.4.17-rt9 (Profile)

Latency plot of shadow in rack #5, slot #4
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -n -a -t3 -p99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: ondemand
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack5slot4s.osadl.org (updated Fri May 20, 2022 00:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2457299196187,8cyclictest0-21swapper/019:14:270
2457799177173,2cyclictest0-21swapper/119:14:271
2458199175173,1cyclictest0-21swapper/219:14:262
24053212660,11sleep00-21swapper/019:05:340
24293211560,7sleep20-21swapper/219:08:402
24322211094,12sleep10-21swapper/119:09:041
316232870,2sleep3341rcuc/319:15:023
231242780,0sleep30-21swapper/323:25:193
135492780,1sleep30-21swapper/322:50:163
244272760,1sleep024430-21kthreadcore22:55:180
49912740,0sleep30-21swapper/320:15:183
110822720,1sleep3111-21kworker/3:123:05:033
178432710,0sleep10-21swapper/123:55:181
2406627060,7sleep30-21swapper/319:05:453
148652690,0sleep30-21swapper/322:04:333
299342670,0sleep20-21swapper/220:10:132
244892670,0sleep20-21swapper/222:40:142
2457799266,10cyclictest0-21swapper/100:07:481
96582240,1sleep20-21swapper/222:47:312
161682230,0sleep00-21swapper/021:49:310
296742210,0sleep10-21swapper/120:10:121
2457799212,13cyclictest0-21swapper/122:12:341
219002210,0sleep00-21swapper/023:40:180
2457299200,18cyclictest536-21systemd-logind22:00:240
2458199190,17cyclictest358-21systemd-journal21:55:002
2458199190,17cyclictest358-21systemd-journal21:55:002
2457799195,6cyclictest0-21swapper/122:26:171
24577991916,2cyclictest0-21swapper/123:15:101
2457799190,17cyclictest536-21systemd-logind20:30:241
2457799190,17cyclictest358-21systemd-journal22:00:001
2457799190,17cyclictest29930-21grep21:40:261
2457299190,17cyclictest358-21systemd-journal20:25:010
2457799184,9cyclictest0-21swapper/119:22:321
24577991810,6cyclictest0-21swapper/100:01:311
24577991810,6cyclictest0-21swapper/100:01:311
2457299181,14cyclictest358-21systemd-journal19:19:590
2457299180,16cyclictest358-21systemd-journal22:15:010
2458199170,15cyclictest358-21systemd-journal00:15:002
2458199170,15cyclictest358-21systemd-journal00:15:002
2457799176,6cyclictest0-21swapper/100:38:311
2457799174,8cyclictest0-21swapper/123:25:571
2457799170,16cyclictest0-21swapper/122:47:011
2457799170,16cyclictest0-21swapper/121:15:231
2457799170,15cyclictest358-21systemd-journal22:55:001
2457799170,15cyclictest358-21systemd-journal19:44:101
24572991713,3cyclictest55950irq/29-enp2s0-r00:15:130
24572991713,2cyclictest0-21swapper/000:35:120
2457299170,16cyclictest536-21systemd-logind19:21:560
2457299170,15cyclictest536-21systemd-logind20:03:560
2457299170,15cyclictest358-21systemd-journal23:38:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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