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2022-07-06 - 18:56

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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x86 Intel Core i3-6100U @2300 MHz, Linux 4.9.47-rt37 (Profile)

Latency plot of shadow in rack #7, slot #7
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rack7slot7s.osadl.org (updated Wed Jul 06, 2022 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
889218159,116sleep30-21swapper/307:07:403
934217256,88sleep10-21swapper/107:08:141
59728964,12sleep20-21swapper/207:05:272
75728864,20sleep00-21swapper/007:05:560
75552860,3sleep20-21swapper/209:39:232
141572820,3sleep2136099cyclictest08:45:192
44232800,3sleep10-21swapper/109:36:481
293322660,1sleep10-21swapper/110:12:491
74582590,2sleep1135999cyclictest09:59:361
136099242,20cyclictest32342chrt07:11:402
135899240,22cyclictest25487-21fschecks_count10:30:190
136099210,20cyclictest61750irq/127-enp2s0-11:09:432
136199190,18cyclictest61750irq/127-enp2s0-09:46:343
135899192,16cyclictest31091-21kworker/0:109:00:170
135899190,18cyclictest31091-21kworker/0:108:03:260
135899182,13cyclictest31091-21kworker/0:111:59:090
135899182,13cyclictest31091-21kworker/0:109:41:130
135899182,12cyclictest31091-21kworker/0:108:45:210
135899181,14cyclictest31091-21kworker/0:111:11:410
135899181,12cyclictest31091-21kworker/0:111:19:210
69772170,3sleep20-21swapper/211:39:342
278972170,1sleep10-21swapper/109:11:171
214672170,1sleep30-21swapper/311:08:003
135899172,9cyclictest31091-21kworker/0:111:50:570
135899172,13cyclictest31091-21kworker/0:110:15:370
135899171,15cyclictest31091-21kworker/0:108:10:130
135899171,13cyclictest31091-21kworker/0:111:35:500
135899171,13cyclictest31091-21kworker/0:110:49:170
135899171,13cyclictest31091-21kworker/0:107:50:170
135899171,13cyclictest31091-21kworker/0:107:40:010
135899171,10cyclictest31091-21kworker/0:109:20:010
135899170,13cyclictest31091-21kworker/0:107:36:370
136199160,15cyclictest61750irq/127-enp2s0-09:20:283
135899162,11cyclictest31091-21kworker/0:109:55:570
135899162,10cyclictest31091-21kworker/0:111:30:570
135899162,10cyclictest31091-21kworker/0:110:40:130
135899162,10cyclictest31091-21kworker/0:109:15:130
135899161,14cyclictest31091-21kworker/0:111:25:410
135899161,14cyclictest31091-21kworker/0:110:55:330
135899161,14cyclictest31091-21kworker/0:110:13:090
135899161,14cyclictest31091-21kworker/0:109:48:210
135899161,14cyclictest17236-21kworker/0:212:33:490
135899161,13cyclictest17236-21kworker/0:212:25:130
135899161,12cyclictest31091-21kworker/0:111:23:090
135899161,12cyclictest31091-21kworker/0:111:01:180
135899161,12cyclictest31091-21kworker/0:110:02:100
135899161,12cyclictest17236-21kworker/0:212:17:170
135899161,11cyclictest31091-21kworker/0:109:50:250
135899161,11cyclictest31091-21kworker/0:109:30:130
135899161,11cyclictest31091-21kworker/0:108:18:170
135899161,11cyclictest31091-21kworker/0:108:18:170
135899161,11cyclictest31091-21kworker/0:107:30:090
135899161,11cyclictest17236-21kworker/0:212:22:250
135899161,11cyclictest17236-21kworker/0:212:10:180
135899161,10cyclictest31091-21kworker/0:107:15:330
135899160,1cyclictest31091-21kworker/0:108:05:130
135899160,14cyclictest31091-21kworker/0:111:48:090
135899160,13cyclictest31091-21kworker/0:110:36:180
135899160,13cyclictest31091-21kworker/0:110:36:170
135899160,12cyclictest31091-21kworker/0:108:40:250
135899160,11cyclictest31091-21kworker/0:111:42:580
135999158,6cyclictest16550irq/16-i801_smb10:55:241
135899153,8cyclictest31091-21kworker/0:109:25:140
135899152,9cyclictest31091-21kworker/0:112:00:370
135899152,8cyclictest31091-21kworker/0:109:36:130
135899152,11cyclictest17236-21kworker/0:212:37:210
135899152,10cyclictest31091-21kworker/0:109:06:210
135899151,9cyclictest17236-21kworker/0:212:08:340
135899151,8cyclictest31091-21kworker/0:111:06:060
135899151,13cyclictest31091-21kworker/0:108:24:580
135899151,11cyclictest31091-21kworker/0:110:25:290
135899151,10cyclictest31091-21kworker/0:110:20:010
135899151,10cyclictest31091-21kworker/0:108:35:210
135899150,9cyclictest31091-21kworker/0:108:30:210
135899150,11cyclictest31091-21kworker/0:108:25:260
135999149,3cyclictest0-21swapper/111:05:131
135999140,3cyclictest24680-21ssh09:50:021
135899142,7cyclictest31091-21kworker/0:107:45:330
135899142,10cyclictest31091-21kworker/0:110:05:140
135899141,9cyclictest31091-21kworker/0:107:25:100
135899141,8cyclictest31091-21kworker/0:109:10:130
135899141,13cyclictest31091-21kworker/0:107:14:330
135899141,12cyclictest31091-21kworker/0:110:51:170
135899140,11cyclictest31091-21kworker/0:108:55:140
135899140,10cyclictest31091-21kworker/0:107:24:060
136199136,6cyclictest16550irq/16-i801_smb08:11:513
135999132,1cyclictest28020-21ssh11:31:541
1359991310,2cyclictest0-21swapper/107:30:141
135999130,9cyclictest25-21ksoftirqd/112:15:411
135999130,3cyclictest5804-21ssh10:18:151
135999130,2cyclictest0-21swapper/111:39:421
135999130,2cyclictest0-21swapper/111:13:101
135999130,2cyclictest0-21swapper/110:42:401
135899132,10cyclictest31091-21kworker/0:107:56:220
156132120,11sleep261650irq/126-enp2s0-11:04:422
136199127,4cyclictest16550irq/16-i801_smb12:12:363
136199127,4cyclictest16550irq/16-i801_smb12:05:213
136199127,4cyclictest16550irq/16-i801_smb12:00:233
136199127,4cyclictest16550irq/16-i801_smb11:47:323
136199127,4cyclictest16550irq/16-i801_smb11:42:313
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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