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2024-04-24 - 17:47

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, 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 - Rack #f/#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 rack0slot4s.osadl.org (updated Wed Apr 24, 2024 00:46:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10865192368349,12sleep70-21swapper/719:05:0213
10899752358341,6sleep00-21swapper/019:06:480
10900352353334,13sleep130-21swapper/1319:07:335
10901892352331,14sleep10-21swapper/119:09:131
10901512352331,14sleep50-21swapper/519:08:4411
10899382352316,12sleep120-21swapper/1219:06:274
10867302352332,13sleep150-21swapper/1519:05:107
10901602350330,13sleep140-21swapper/1419:08:546
10901572350330,13sleep110-21swapper/1119:08:513
10867812350329,14sleep30-21swapper/319:05:149
10899132349329,13sleep60-21swapper/619:06:0512
10900792348328,13sleep100-21swapper/1019:08:022
10900512348328,13sleep80-21swapper/819:07:4414
10902262347327,13sleep20-21swapper/219:09:478
10900522342322,13sleep90-21swapper/919:07:4515
10898882340321,13sleep40-21swapper/419:05:4710
10906469910732,75cyclictest0-21swapper/219:41:148
1090662999033,29cyclictest0-21swapper/719:41:1313
1090644997517,58cyclictest0-21swapper/119:41:141
1090687997012,28cyclictest0-21swapper/1519:41:137
1090670996565,0cyclictest0-21swapper/919:41:1315
1090677996161,0cyclictest0-21swapper/1219:41:134
1090653996059,1cyclictest28066-21Xorg19:41:1410
1090640996030,30cyclictest0-21swapper/019:41:130
1090675994443,1cyclictest1278214-21kworker/u32:4+events_unbound21:30:233
1090646994343,0cyclictest0-21swapper/223:21:168
1090672994240,2cyclictest28066-21Xorg19:41:142
1090644994241,1cyclictest1193575-21kworker/u32:0+flush-259:020:30:151
1090665994039,1cyclictest28066-21Xorg19:41:1314
1090662993936,2cyclictest1451467-21kworker/7:2+events00:30:1913
1090646993938,1cyclictest1189333-21kworker/u32:2+flush-259:020:35:188
1090644993938,1cyclictest1443631-21kworker/u32:4+flush-259:023:25:171
1090687993835,2cyclictest1193575-21kworker/u32:0+flush-259:020:53:377
1090650993737,0cyclictest0-21swapper/321:51:099
1090685993634,2cyclictest1304901-21kworker/u32:0+flush-259:022:20:186
1090662993635,0cyclictest1366668-21kworker/7:0+events23:20:2113
1090662993633,2cyclictest1176674-21kworker/7:1+events21:05:1513
1090650993636,0cyclictest0-21swapper/322:55:419
1090650993636,0cyclictest0-21swapper/320:06:279
1090646993636,0cyclictest0-21swapper/200:12:538
1090675993535,0cyclictest0-21swapper/1121:51:093
1090650993535,0cyclictest0-21swapper/320:48:219
1090650993535,0cyclictest0-21swapper/320:41:479
1090646993535,0cyclictest0-21swapper/220:26:518
1090644993534,1cyclictest1397029-21kworker/u32:2+flush-259:023:50:181
1090675993434,0cyclictest0-21swapper/1123:31:073
1090675993433,1cyclictest0-21swapper/1123:59:313
1090662993432,2cyclictest1366668-21kworker/7:0+events23:01:1513
1090662993431,2cyclictest1451467-21kworker/7:2+events00:13:1513
1090662993429,3cyclictest1451467-21kworker/7:2+events00:28:2913
1090650993434,0cyclictest0-21swapper/322:05:419
1090650993434,0cyclictest0-21swapper/322:05:419
1090650993434,0cyclictest0-21swapper/321:37:499
1090650993434,0cyclictest0-21swapper/319:51:579
1090650993434,0cyclictest0-21swapper/319:31:019
1090646993434,0cyclictest0-21swapper/200:34:198
109068799330,32cyclictest0-21swapper/1522:01:467
1090675993333,0cyclictest0-21swapper/1123:22:293
1090675993333,0cyclictest0-21swapper/1100:22:453
1090662993331,2cyclictest1176674-21kworker/7:1+events21:35:1713
1090662993331,2cyclictest1176674-21kworker/7:1+events20:10:1013
1090662993330,3cyclictest1103575-21kworker/7:2+events19:27:0813
1090662993330,2cyclictest1176674-21kworker/7:1+events21:26:0313
1090662993328,3cyclictest1176674-21kworker/7:1+events21:01:0913
1090662993320,11cyclictest1103575-21kworker/7:2+events20:01:2313
1090650993333,0cyclictest0-21swapper/320:36:459
1090646993333,0cyclictest0-21swapper/223:57:578
1090646993333,0cyclictest0-21swapper/223:42:198
1090646993333,0cyclictest0-21swapper/222:06:358
1090646993333,0cyclictest0-21swapper/222:06:358
1090646993331,2cyclictest0-21swapper/222:50:148
1090640993331,2cyclictest1548072-21kworker/u32:4+events_unbound00:30:210
109068799320,29cyclictest0-21swapper/1523:35:537
1090685993231,1cyclictest1354126-21kworker/u32:3+flush-259:022:10:176
1090685993231,1cyclictest1354126-21kworker/u32:3+flush-259:022:10:176
109068199320,31cyclictest0-21swapper/1319:41:135
1090675993232,0cyclictest0-21swapper/1123:26:143
1090675993232,0cyclictest0-21swapper/1123:17:133
1090675993232,0cyclictest0-21swapper/1122:55:413
1090675993232,0cyclictest0-21swapper/1122:06:353
1090675993232,0cyclictest0-21swapper/1122:06:353
1090675993232,0cyclictest0-21swapper/1119:45:333
1090675993232,0cyclictest0-21swapper/1119:24:353
1090675993232,0cyclictest0-21swapper/1100:17:033
109067599320,32cyclictest0-21swapper/1119:50:113
1090662993230,2cyclictest1176674-21kworker/7:1+events21:13:2513
1090662993230,1cyclictest1176674-21kworker/7:1+events22:01:1513
1090662993229,2cyclictest1451467-21kworker/7:2+events00:21:3913
109066099320,29cyclictest0-21swapper/621:20:1712
1090646993232,0cyclictest0-21swapper/221:55:398
1090646993232,0cyclictest0-21swapper/220:45:558
1090646993232,0cyclictest0-21swapper/220:41:478
1090646993232,0cyclictest0-21swapper/219:34:438
1090687993130,1cyclictest1037881-21kworker/u32:1+events_unbound19:15:037
1090687993129,2cyclictest3769378-21snmpd23:31:227
109068799310,30cyclictest0-21swapper/1521:58:237
109068799310,30cyclictest0-21swapper/1520:13:357
109068799310,28cyclictest0-21swapper/1500:37:297
1090681993130,1cyclictest3769378-21snmpd00:39:455
1090675993131,0cyclictest0-21swapper/1122:13:553
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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