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2025-03-20 - 03:44

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, 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 - 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 rack0slot7s.osadl.org (updated Thu Mar 20, 2025 00:43:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1288269211468,19sleep10-21swapper/119:09:241
1288103211266,20sleep00-21swapper/019:07:150
1288312210574,23sleep20-21swapper/219:09:582
1288116210375,21sleep30-21swapper/319:07:263
1288485995523,32cyclictest0-21swapper/019:40:060
1288488993621,14cyclictest0-21swapper/122:55:061
128848599260,25cyclictest0-21swapper/022:38:170
128848599260,25cyclictest0-21swapper/020:16:550
128848599250,24cyclictest0-21swapper/019:24:330
128849499245,1cyclictest0-21swapper/320:34:523
128849099240,24cyclictest0-21swapper/223:31:222
128849099240,15cyclictest0-21swapper/221:35:002
128849099240,15cyclictest0-21swapper/200:34:182
1288490992210,4cyclictest0-21swapper/222:08:022
128848599223,4cyclictest0-21swapper/020:27:110
1288488992110,10cyclictest0-21swapper/121:28:331
1288494992011,9cyclictest0-21swapper/319:35:443
128849099190,7cyclictest0-21swapper/220:42:492
128849099190,16cyclictest0-21swapper/219:30:172
1288488991915,4cyclictest0-21swapper/122:04:341
1288488991915,4cyclictest0-21swapper/122:04:341
128848899190,13cyclictest0-21swapper/100:19:511
128848599190,18cyclictest1305845-21awk19:50:190
128849499183,6cyclictest0-21swapper/323:15:253
128849499180,17cyclictest0-21swapper/323:10:073
128849099183,6cyclictest0-21swapper/220:08:072
128848599180,17cyclictest0-21swapper/022:40:140
128848599180,17cyclictest0-21swapper/000:29:090
1288494991712,5cyclictest0-21swapper/319:57:223
1288494991711,6cyclictest0-21swapper/322:24:473
1288494991710,7cyclictest0-21swapper/319:25:193
128849499170,8cyclictest0-21swapper/300:29:063
128849499170,17cyclictest0-21swapper/322:19:213
128849499170,17cyclictest0-21swapper/320:04:213
128849499170,16cyclictest0-21swapper/320:27:443
128849499170,16cyclictest0-21swapper/300:07:353
128849099170,15cyclictest0-21swapper/223:44:112
128849099170,15cyclictest0-21swapper/222:41:532
1288488991715,1cyclictest1394720-21awk00:10:141
128848899170,16cyclictest0-21swapper/123:27:461
128848599177,4cyclictest1326215-21ntpq20:45:160
128848599170,17cyclictest0-21swapper/021:14:380
128848599170,16cyclictest0-21swapper/023:49:200
128848599170,16cyclictest0-21swapper/022:58:390
128848599170,16cyclictest0-21swapper/022:06:170
13039812160,0chrt0-21swapper/019:45:190
128849499160,8cyclictest1335226-21ssh21:10:003
128849499160,16cyclictest0-21swapper/323:07:363
128849499160,16cyclictest0-21swapper/321:53:103
128849099160,16cyclictest0-21swapper/200:35:302
128848899160,8cyclictest0-21swapper/100:32:451
128848899160,7cyclictest0-21swapper/122:05:561
128848899160,7cyclictest0-21swapper/100:24:301
1288485991613,2cyclictest1051-21snmpd22:47:300
1288485991613,2cyclictest1051-21snmpd21:59:460
128848599160,7cyclictest0-21swapper/021:00:230
128848599160,1cyclictest0-21swapper/000:33:390
128848599160,16cyclictest0-21swapper/021:32:580
128848599160,15cyclictest0-21swapper/021:51:040
1288494991511,4cyclictest0-21swapper/319:49:523
128849499150,14cyclictest0-21swapper/322:14:313
128849099155,5cyclictest0-21swapper/223:38:402
1288490991512,2cyclictest1051-21snmpd19:12:562
128849099150,7cyclictest0-21swapper/221:34:522
128849099150,6cyclictest0-21swapper/222:01:522
128849099150,6cyclictest0-21swapper/222:01:522
128849099150,1cyclictest0-21swapper/219:25:182
128849099150,15cyclictest0-21swapper/200:00:462
128848899152,1cyclictest0-21swapper/120:31:221
1288488991512,3cyclictest0-21swapper/120:50:201
1288488991512,2cyclictest1051-21snmpd22:25:381
128848899150,7cyclictest0-21swapper/122:45:461
128848899150,1cyclictest0-21swapper/121:05:181
128848599151,6cyclictest0-21swapper/000:04:290
1288485991511,4cyclictest0-21swapper/020:01:460
1288485991511,4cyclictest0-21swapper/019:26:020
128848599150,1cyclictest0-21swapper/021:40:170
128849499145,9cyclictest0-21swapper/321:49:283
128849499144,10cyclictest0-21swapper/321:41:343
128849499144,10cyclictest0-21swapper/321:20:293
1288494991412,1cyclictest1051-21snmpd22:41:023
1288494991411,2cyclictest1051-21snmpd21:56:503
1288494991410,4cyclictest0-21swapper/320:07:073
128849499140,6cyclictest0-21swapper/323:38:273
128849499140,6cyclictest0-21swapper/323:30:283
128849499140,6cyclictest0-21swapper/319:42:033
128849099143,10cyclictest0-21swapper/221:46:092
1288490991412,1cyclictest1051-21snmpd23:16:042
1288490991412,1cyclictest1051-21snmpd21:06:322
1288490991411,3cyclictest0-21swapper/221:22:382
1288490991410,4cyclictest0-21swapper/200:06:232
128849099140,14cyclictest0-21swapper/219:56:162
128848899144,4cyclictest0-21swapper/123:58:381
128848899144,4cyclictest0-21swapper/119:22:571
1288488991413,1cyclictest0-21swapper/119:39:151
1288488991410,4cyclictest0-21swapper/121:03:031
1288485991412,1cyclictest0-21swapper/023:26:340
128848599140,6cyclictest0-21swapper/021:26:300
128848599140,5cyclictest0-21swapper/022:53:390
128848599140,1cyclictest0-21swapper/023:00:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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