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2023-09-26 - 15:08

OSADL QA Farm on Real-time of Mainline Linux

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

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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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rack7slot7s.osadl.org (updated Tue Sep 26, 2023 12:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1758629985,9sleep10-21swapper/107:05:391
1790229177,9sleep30-21swapper/307:08:183
1591628467,13sleep20-21swapper/207:05:162
1774428166,10sleep00-21swapper/007:06:140
18114994139,1cyclictest25-21ksoftirqd/111:22:361
18123993324,8cyclictest39-21ksoftirqd/311:37:263
18114993230,1cyclictest25-21ksoftirqd/111:05:101
18114993028,1cyclictest25-21ksoftirqd/112:13:211
18114993028,1cyclictest25-21ksoftirqd/111:51:191
18114993028,1cyclictest25102-21apache212:08:451
18114993026,1cyclictest25-21ksoftirqd/111:17:491
18114992927,1cyclictest25-21ksoftirqd/111:46:581
18114992927,1cyclictest25-21ksoftirqd/111:11:321
18114992926,1cyclictest25-21ksoftirqd/111:00:201
18114992925,2cyclictest25-21ksoftirqd/109:37:591
18114992924,2cyclictest25-21ksoftirqd/112:28:161
18119992825,2cyclictest235652sleep212:33:072
18114992828,0cyclictest0-21swapper/110:38:161
18114992828,0cyclictest0-21swapper/110:38:161
18114992826,1cyclictest25-21ksoftirqd/112:35:251
18114992826,1cyclictest25-21ksoftirqd/112:30:151
18114992826,1cyclictest25-21ksoftirqd/112:22:251
18114992826,1cyclictest25-21ksoftirqd/112:16:291
18114992826,1cyclictest25-21ksoftirqd/112:02:081
18114992826,1cyclictest25-21ksoftirqd/111:56:211
18114992826,1cyclictest25-21ksoftirqd/111:40:331
18114992826,1cyclictest25-21ksoftirqd/111:33:111
18114992826,1cyclictest25-21ksoftirqd/111:28:241
18114992826,1cyclictest25-21ksoftirqd/110:56:201
18114992826,1cyclictest25-21ksoftirqd/110:47:331
18114992826,1cyclictest25-21ksoftirqd/110:42:391
18114992826,1cyclictest25-21ksoftirqd/110:30:581
18114992826,1cyclictest25-21ksoftirqd/110:26:171
18114992826,1cyclictest25-21ksoftirqd/110:16:241
18114992826,1cyclictest25-21ksoftirqd/110:13:521
18114992826,1cyclictest25-21ksoftirqd/110:09:211
18114992826,1cyclictest25-21ksoftirqd/110:01:051
18114992826,1cyclictest25-21ksoftirqd/109:55:411
18114992826,1cyclictest25-21ksoftirqd/109:49:041
18114992826,1cyclictest25-21ksoftirqd/109:42:571
18114992826,1cyclictest25-21ksoftirqd/109:33:511
18114992826,1cyclictest25-21ksoftirqd/109:27:451
18114992826,1cyclictest25-21ksoftirqd/109:18:251
18110992824,2cyclictest123892sleep011:00:280
18123992724,2cyclictest39-21ksoftirqd/312:20:403
18123992724,2cyclictest39-21ksoftirqd/311:22:493
18123992724,2cyclictest1291-21runrttasks09:49:183
18119992724,2cyclictest32-21ksoftirqd/211:11:492
18114992725,1cyclictest25-21ksoftirqd/111:35:011
18114992725,1cyclictest25-21ksoftirqd/110:54:381
18114992725,1cyclictest25-21ksoftirqd/110:20:001
18114992725,1cyclictest25-21ksoftirqd/109:50:211
18114992725,1cyclictest25-21ksoftirqd/109:20:191
18114992725,1cyclictest25-21ksoftirqd/109:10:081
18110992725,1cyclictest19022-21/usr/sbin/munin11:30:400
18110992719,4cyclictest493-21systemd-logind11:49:220
18123992624,1cyclictest14497-21/usr/sbin/munin10:35:263
18123992624,1cyclictest14497-21/usr/sbin/munin10:35:253
18123992623,2cyclictest39-21ksoftirqd/312:26:413
18123992623,2cyclictest39-21ksoftirqd/312:10:113
18123992623,2cyclictest39-21ksoftirqd/311:15:543
18123992623,2cyclictest39-21ksoftirqd/310:30:193
18123992623,2cyclictest39-21ksoftirqd/309:20:073
18119992622,3cyclictest24331-21needreboot09:20:252
18110992623,3cyclictest13-21ksoftirqd/010:53:380
18110992623,2cyclictest13-21ksoftirqd/012:38:070
18110992623,2cyclictest13-21ksoftirqd/010:30:160
18123992523,2cyclictest39-21ksoftirqd/311:46:123
18123992523,2cyclictest39-21ksoftirqd/311:31:043
18123992523,2cyclictest39-21ksoftirqd/310:42:063
18123992523,2cyclictest39-21ksoftirqd/310:09:103
18123992523,2cyclictest39-21ksoftirqd/309:32:073
18123992522,2cyclictest39-21ksoftirqd/312:02:003
18123992521,3cyclictest19765-21sort12:30:293
18119992523,2cyclictest32-21ksoftirqd/211:57:012
18119992523,2cyclictest32-21ksoftirqd/211:28:002
18119992523,2cyclictest32-21ksoftirqd/210:44:392
18119992523,2cyclictest32-21ksoftirqd/210:21:342
18119992523,2cyclictest32-21ksoftirqd/210:09:002
18119992523,2cyclictest32-21ksoftirqd/209:16:442
18119992522,2cyclictest32-21ksoftirqd/212:03:452
18119992522,2cyclictest32-21ksoftirqd/211:47:312
18119992522,2cyclictest32-21ksoftirqd/209:58:442
18119992521,3cyclictest32-21ksoftirqd/210:13:182
18110992523,2cyclictest13-21ksoftirqd/009:59:520
18110992522,2cyclictest13-21ksoftirqd/012:26:120
18110992522,2cyclictest13-21ksoftirqd/012:15:210
18110992522,2cyclictest13-21ksoftirqd/012:01:470
18110992522,2cyclictest13-21ksoftirqd/010:37:530
18110992522,2cyclictest13-21ksoftirqd/010:37:530
18110992522,2cyclictest13-21ksoftirqd/010:29:490
18110992517,4cyclictest0-21swapper/010:57:490
1811099250,2cyclictest0-21swapper/008:40:200
18123992422,2cyclictest39-21ksoftirqd/312:39:023
18123992422,2cyclictest39-21ksoftirqd/310:57:353
18123992422,2cyclictest39-21ksoftirqd/310:48:553
18123992422,2cyclictest39-21ksoftirqd/309:44:403
18123992422,1cyclictest28048-21interrupts11:55:273
18123992421,2cyclictest39-21ksoftirqd/311:40:103
18123992421,2cyclictest39-21ksoftirqd/310:10:293
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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