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2022-07-06 - 19:13

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, 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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x86 Intel Core i7-4960X @3600 MHz, Linux 5.15.2-rt19 (Profile)

Latency plot of shadow in rack #0, slot #3
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 rack0slot3s.osadl.org (updated Wed May 18, 2022 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
405583999622,960cyclictest0-21swapper/600:27:388
405590999582,956cyclictest0-21swapper/821:23:0010
405590997571,756cyclictest0-21swapper/823:49:4910
405590997571,756cyclictest0-21swapper/823:49:4910
405590995572,555cyclictest0-21swapper/823:43:4710
405590995572,555cyclictest0-21swapper/823:43:4710
405564995442,542cyclictest0-21swapper/123:15:331
405598995212,519cyclictest0-21swapper/1020:10:282
405575995112,509cyclictest0-21swapper/419:55:156
405590994892,487cyclictest0-21swapper/821:29:2210
405572991932,191cyclictest0-21swapper/322:45:245
405579991832,181cyclictest0-21swapper/500:00:257
405579991732,171cyclictest0-21swapper/523:28:387
405579991732,171cyclictest0-21swapper/523:23:347
405579991732,171cyclictest0-21swapper/522:03:097
405583991722,170cyclictest0-21swapper/623:56:518
405583991722,170cyclictest0-21swapper/623:56:518
405564991702,168cyclictest0-21swapper/121:36:511
405579991692,167cyclictest0-21swapper/523:34:407
405587991682,166cyclictest0-21swapper/723:09:019
405583991661,165cyclictest0-21swapper/621:46:048
405564991652,163cyclictest0-21swapper/119:42:441
405600991632,161cyclictest0-21swapper/1121:40:333
405587991632,161cyclictest0-21swapper/721:55:209
405583991632,161cyclictest0-21swapper/600:07:278
405564991622,160cyclictest0-21swapper/123:23:401
405561991592,157cyclictest0-21swapper/023:24:580
405579991562,154cyclictest0-21swapper/521:59:017
405572991552,153cyclictest0-21swapper/321:33:225
405598991522,150cyclictest0-21swapper/1020:57:532
405575991512,149cyclictest0-21swapper/400:34:136
405569991512,149cyclictest0-21swapper/200:26:304
405598991492,147cyclictest0-21swapper/1023:14:542
405569991492,147cyclictest0-21swapper/219:43:114
405564991492,147cyclictest0-21swapper/121:06:291
405590991482,146cyclictest0-21swapper/822:57:0210
405590991482,146cyclictest0-21swapper/822:38:3510
405590991482,146cyclictest0-21swapper/821:33:3610
405590991482,146cyclictest0-21swapper/819:35:1210
405587991482,146cyclictest0-21swapper/700:31:089
405590991471,146cyclictest0-21swapper/800:19:2410
405593991462,144cyclictest0-21swapper/921:54:4111
405575991462,144cyclictest0-21swapper/423:38:386
405572991462,144cyclictest0-21swapper/320:34:175
405587991452,143cyclictest0-21swapper/721:49:439
405579991452,143cyclictest0-21swapper/523:04:417
405569991452,143cyclictest0-21swapper/223:35:174
405600991442,142cyclictest0-21swapper/1122:11:363
405569991442,142cyclictest0-21swapper/222:16:424
405564991442,142cyclictest0-21swapper/121:56:491
405561991442,142cyclictest0-21swapper/021:48:030
405593991432,141cyclictest0-21swapper/921:40:4011
405593991432,141cyclictest0-21swapper/900:31:0711
405569991432,141cyclictest0-21swapper/223:55:204
405569991432,141cyclictest0-21swapper/223:55:204
405569991432,141cyclictest0-21swapper/223:50:334
405569991432,141cyclictest0-21swapper/223:50:324
405569991432,141cyclictest0-21swapper/223:48:214
405569991432,141cyclictest0-21swapper/223:48:214
405569991432,141cyclictest0-21swapper/221:42:444
405569991432,141cyclictest0-21swapper/200:17:144
405579991422,140cyclictest0-21swapper/521:50:287
405569991422,140cyclictest0-21swapper/223:10:174
405598991402,138cyclictest0-21swapper/1019:15:122
405590991402,138cyclictest0-21swapper/823:31:3810
405587991402,138cyclictest0-21swapper/719:49:199
405590991392,137cyclictest0-21swapper/820:56:3710
405569991392,137cyclictest0-21swapper/222:58:404
405593991382,136cyclictest0-21swapper/923:58:2311
405593991382,136cyclictest0-21swapper/923:58:2311
405587991382,136cyclictest0-21swapper/700:16:009
405564991372,135cyclictest0-21swapper/120:26:321
405600991362,134cyclictest0-21swapper/1120:26:123
405598991362,134cyclictest0-21swapper/1022:44:372
405598991362,134cyclictest0-21swapper/1020:33:412
405587991362,134cyclictest0-21swapper/720:33:119
405569991362,134cyclictest0-21swapper/222:53:074
405587991352,133cyclictest0-21swapper/720:57:199
405587991342,132cyclictest0-21swapper/722:28:449
405587991342,132cyclictest0-21swapper/720:14:589
405598991332,131cyclictest0-21swapper/1022:48:532
405575991332,131cyclictest0-21swapper/419:44:266
405564991332,131cyclictest0-21swapper/122:13:191
40309121330,5sleep50-21swapper/519:05:147
405600991312,129cyclictest0-21swapper/1123:51:113
405600991312,129cyclictest0-21swapper/1123:51:113
405600991312,129cyclictest0-21swapper/1123:45:153
405600991312,129cyclictest0-21swapper/1123:45:143
405600991312,129cyclictest0-21swapper/1123:41:593
405600991312,129cyclictest0-21swapper/1123:41:593
405600991312,129cyclictest0-21swapper/1123:25:453
405600991312,129cyclictest0-21swapper/1123:14:563
405600991312,129cyclictest0-21swapper/1123:05:313
405600991312,129cyclictest0-21swapper/1123:01:123
405600991312,129cyclictest0-21swapper/1122:56:463
405600991312,129cyclictest0-21swapper/1122:52:343
405600991312,129cyclictest0-21swapper/1122:44:263
405600991312,129cyclictest0-21swapper/1122:33:213
405600991312,129cyclictest0-21swapper/1122:22:393
405600991312,129cyclictest0-21swapper/1122:05:433
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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