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2022-07-03 - 10:47

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, slot #2

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 i3-2310E @2100 MHz, Linux 5.10.47-rt46 (Profile)

Latency plot of shadow in rack #8, slot #2
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by a total of 2 SMIs that occured during the measurement.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 --smi -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 rack8slot2s.osadl.org (updated Sun Jul 03, 2022 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3240599119117,1cyclictest0-21swapper/219:14:562
32080210946,31sleep30-21swapper/319:14:153
2478021050,1sleep30-21swapper/322:20:173
50682970,0sleep30-21swapper/323:06:113
32405999189,1cyclictest0-21swapper/219:19:562
3194729145,36sleep00-21swapper/019:12:310
3181228948,31sleep20-21swapper/219:10:492
3194828846,31sleep10-21swapper/119:12:321
75622400,1sleep10-21swapper/100:15:161
208452400,1sleep30-21swapper/323:22:553
32404993123,7cyclictest0-21swapper/119:14:561
324612300,1sleep20-21swapper/223:01:012
109022290,0sleep30-21swapper/323:12:453
282382260,1sleep228-21ksoftirqd/222:57:082
99832250,1chrt9982-21ssh00:18:593
50192250,0sleep20-21swapper/222:00:162
277832240,1chrt27784-21ssh22:56:220
100472240,0sleep00-21swapper/023:45:090
32406992119,1cyclictest0-21swapper/319:14:563
3240399194,6cyclictest30329-21ssh21:53:470
3240399193,8cyclictest4097-21ntp_states19:20:140
3240399193,10cyclictest202-21jbd2/sda1-821:10:010
3240599183,4cyclictest28669-21ssh21:51:042
3240399185,9cyclictest31366-21kworker/u8:123:04:230
3240399184,13cyclictest19425-21ssh21:42:230
100882170,1sleep20-21swapper/222:39:282
3240599161,4cyclictest1484-21ssh21:25:072
3240399166,9cyclictest7431-21ssh22:03:230
3240399165,7cyclictest0-21swapper/021:45:110
3240399165,6cyclictest8068-21ssh23:42:590
3240399164,8cyclictest202-21jbd2/sda1-820:25:130
3240399161,3cyclictest16533-21ssh23:50:380
3240599151,4cyclictest21208-21if_enp3s022:50:112
3240599150,14cyclictest0-21swapper/222:15:072
3240399157,7cyclictest0-21swapper/021:08:430
3240399157,7cyclictest0-21swapper/020:10:090
3240399154,7cyclictest24136-21ssh00:34:010
3240399154,5cyclictest0-21swapper/000:11:310
3240399153,6cyclictest25700-21ssh22:21:010
3240399151,9cyclictest4181-21ssh21:26:440
32403991512,2cyclictest0-21swapper/019:14:560
3240699149,4cyclictest23433-21diskmemload23:16:283
3240599145,4cyclictest0-21swapper/221:00:202
3240599144,5cyclictest0-21swapper/223:58:572
3240599143,7cyclictest0-21swapper/223:14:482
3240599142,9cyclictest31539-21sh21:21:382
3240599140,13cyclictest0-21swapper/200:30:072
3240399147,6cyclictest0-21swapper/020:32:130
3240399147,6cyclictest0-21swapper/020:23:010
3240399146,7cyclictest0-21swapper/023:19:430
3240399146,7cyclictest0-21swapper/020:18:250
3240399144,9cyclictest0-21swapper/023:55:190
3240399144,9cyclictest0-21swapper/023:36:450
3240399144,9cyclictest0-21swapper/023:30:370
3240399144,9cyclictest0-21swapper/023:06:110
3240399144,9cyclictest0-21swapper/022:54:150
3240399144,9cyclictest0-21swapper/022:43:270
3240399144,9cyclictest0-21swapper/022:28:150
3240399144,9cyclictest0-21swapper/022:15:450
3240399144,9cyclictest0-21swapper/022:13:230
3240399144,9cyclictest0-21swapper/022:13:230
3240399144,9cyclictest0-21swapper/021:37:090
3240399144,9cyclictest0-21swapper/021:33:590
3240399144,9cyclictest0-21swapper/021:20:110
3240399144,9cyclictest0-21swapper/021:19:090
3240399144,9cyclictest0-21swapper/021:00:190
3240399144,9cyclictest0-21swapper/020:56:490
3240399144,9cyclictest0-21swapper/020:50:170
3240399144,9cyclictest0-21swapper/020:38:490
3240399144,9cyclictest0-21swapper/020:04:430
3240399144,9cyclictest0-21swapper/019:26:190
3240399144,9cyclictest0-21swapper/000:20:170
3240399144,9cyclictest0-21swapper/000:15:250
3240399144,9cyclictest0-21swapper/000:06:170
3240399144,9cyclictest0-21swapper/000:01:330
3240399144,6cyclictest131rcuc/022:05:170
3240399143,7cyclictest31258-21ssh21:54:570
3240399143,10cyclictest24828-21runrttasks23:26:230
3240399141,7cyclictest16627-21munin-run19:49:540
316692140,0sleep10-21swapper/122:27:411
3240699137,4cyclictest229-21systemd-journal22:59:543
3240599138,3cyclictest5295-21gltestperf23:40:122
3240599135,6cyclictest0-21swapper/220:42:582
3240599134,7cyclictest19105-21latency_hist23:54:552
3240599132,9cyclictest9698-21latency_hist19:34:552
3240599132,4cyclictest29041-21sh00:39:312
3240599132,3cyclictest32494-21ssh00:08:042
3240599132,3cyclictest2807-21ssh22:30:282
3240599132,2cyclictest7217-21taskset19:27:522
3240599132,2cyclictest17928-21sh00:26:092
3240599132,2cyclictest11713-21taskset19:36:302
3240599131,4cyclictest27633-21ssh21:18:322
3240599131,4cyclictest19619-21ssh21:42:412
3240399134,8cyclictest0-21swapper/022:46:530
3240399134,4cyclictest0-21swapper/019:35:110
3240399133,9cyclictest0-21swapper/023:20:130
3240399133,9cyclictest0-21swapper/022:36:510
3240399133,9cyclictest0-21swapper/022:31:050
3240399133,9cyclictest0-21swapper/020:05:150
3240399133,9cyclictest0-21swapper/019:43:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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