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2025-07-12 - 12:50

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #5

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 rack0slot5s.osadl.org (updated Sat Jul 12, 2025 00:47:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39001912430422,5sleep20-21swapper/219:07:258
39001112420412,5sleep150-21swapper/1519:06:187
39002682412405,5sleep80-21swapper/819:08:3614
39002112406392,12sleep30-21swapper/319:07:439
39003562402395,5sleep40-21swapper/419:09:5210
39003032402396,4sleep60-21swapper/619:09:0512
39001492401393,5sleep140-21swapper/1419:06:506
39003462399392,5sleep110-21swapper/1119:09:423
39001762398391,5sleep50-21swapper/519:07:1311
39001072398392,4sleep120-21swapper/1219:06:154
39001902397390,5sleep10-21swapper/119:07:251
39002552395388,5sleep130-21swapper/1319:08:255
39003242394386,5sleep90-21swapper/919:09:2515
39001422390383,5sleep100-21swapper/1019:06:462
39001132390383,5sleep00-21swapper/019:06:200
39000472390382,5sleep70-21swapper/719:05:2213
390072199479,25cyclictest801ktimers/620:59:1012
390072199468,25cyclictest0-21swapper/622:59:5712
390072199468,25cyclictest0-21swapper/621:10:0812
390072199404,25cyclictest0-21swapper/620:04:1412
390072199380,25cyclictest0-21swapper/621:43:0512
390072199380,25cyclictest0-21swapper/600:05:5212
390075699365,18cyclictest0-21swapper/1419:45:076
3900748993533,1cyclictest1526-21snmpd22:56:144
3900694993434,0cyclictest0-21swapper/022:29:290
390072199339,13cyclictest0-21swapper/600:27:5012
390072199327,25cyclictest0-21swapper/621:32:0712
390072199327,14cyclictest0-21swapper/621:21:0812
3900730993130,1cyclictest0-21swapper/823:07:4414
390072199316,14cyclictest0-21swapper/620:37:1212
390070399318,1cyclictest0-21swapper/220:30:198
3900739993027,2cyclictest1526-21snmpd20:37:152
390072199305,25cyclictest0-21swapper/622:05:0412
390072199305,14cyclictest0-21swapper/623:21:5612
390072199305,14cyclictest0-21swapper/619:53:1512
3900717993029,1cyclictest1526-21snmpd19:13:0911
390073599290,0cyclictest0-21swapper/900:39:2715
3900726992927,2cyclictest1526-21snmpd20:07:4113
3900726992927,2cyclictest1526-21snmpd20:07:4013
3900726992927,1cyclictest1526-21snmpd21:59:2313
390072199295,13cyclictest0-21swapper/620:48:1112
390072199295,13cyclictest0-21swapper/619:42:1612
390072199295,11cyclictest0-21swapper/620:15:1312
390070399290,1cyclictest0-21swapper/222:04:168
390075999280,28cyclictest0-21swapper/1522:48:567
390075999280,1cyclictest0-21swapper/1521:32:197
3900752992827,1cyclictest1526-21snmpd22:34:385
3900752992827,1cyclictest1526-21snmpd19:28:575
390075299280,5cyclictest0-21swapper/1320:58:265
3900739992827,1cyclictest1526-21snmpd22:09:292
3900739992826,1cyclictest1526-21snmpd22:49:422
3900735992827,1cyclictest1526-21snmpd21:27:1015
3900735992827,1cyclictest1526-21snmpd00:21:5615
3900735992827,1cyclictest1526-21snmpd00:21:5615
390073599280,28cyclictest0-21swapper/919:52:4415
390073599280,27cyclictest0-21swapper/921:50:0115
390073599280,27cyclictest0-21swapper/921:49:5815
390072699285,1cyclictest0-21swapper/720:40:1913
390072699284,14cyclictest0-21swapper/723:00:0813
3900726992826,1cyclictest1526-21snmpd19:20:1013
390072199284,14cyclictest0-21swapper/620:26:1212
390072199284,13cyclictest0-21swapper/619:31:1712
390072199284,13cyclictest0-21swapper/600:38:4912
390072199284,11cyclictest0-21swapper/623:43:5312
3900721992826,2cyclictest1526-21snmpd19:25:4012
390072199280,27cyclictest0-21swapper/621:57:0812
3900717992827,1cyclictest1526-21snmpd23:52:2411
3900712992826,2cyclictest1526-21snmpd22:42:5010
3900699992827,1cyclictest1526-21snmpd22:41:291
3900694992827,1cyclictest1526-21snmpd21:02:250
3900759992726,1cyclictest1526-21snmpd21:04:277
390075999270,27cyclictest0-21swapper/1523:19:527
3900756992726,1cyclictest1526-21snmpd23:10:576
3900756992726,1cyclictest1526-21snmpd23:04:566
3900756992726,1cyclictest1526-21snmpd19:29:166
390075699270,27cyclictest0-21swapper/1422:25:346
390075699270,27cyclictest0-21swapper/1419:16:556
3900752992726,1cyclictest1526-21snmpd22:35:485
3900752992726,1cyclictest1526-21snmpd00:16:355
3900752992726,1cyclictest1526-21snmpd00:16:345
390075299270,27cyclictest0-21swapper/1323:48:065
390075299270,27cyclictest0-21swapper/1322:15:505
390075299270,27cyclictest0-21swapper/1322:15:505
390074899270,27cyclictest0-21swapper/1221:34:224
3900744992726,1cyclictest1526-21snmpd00:15:533
3900744992726,1cyclictest1526-21snmpd00:15:523
390074499270,27cyclictest0-21swapper/1122:06:443
390074499270,27cyclictest0-21swapper/1100:39:233
390073999270,27cyclictest0-21swapper/1022:23:442
390073999270,27cyclictest0-21swapper/1021:37:432
390073999270,27cyclictest0-21swapper/1020:56:032
390073999270,27cyclictest0-21swapper/1020:53:412
390073999270,1cyclictest0-21swapper/1023:46:102
3900735992726,1cyclictest1526-21snmpd19:32:3415
3900735992726,1cyclictest1526-21snmpd00:28:2915
390073599270,27cyclictest0-21swapper/919:22:3115
3900730992726,1cyclictest1526-21snmpd21:49:3714
3900730992726,1cyclictest1526-21snmpd21:43:2214
390073099270,27cyclictest0-21swapper/821:07:4814
390073099270,27cyclictest0-21swapper/820:26:0314
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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