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2025-07-01 - 04:03

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 - 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 rack0slot3s.osadl.org (updated Thu Jun 05, 2025 00:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18709432255233,14sleep10-21swapper/119:05:411
18710302254234,13sleep70-21swapper/719:06:527
18712252251243,5sleep40-21swapper/419:09:294
18709772247212,13sleep60-21swapper/619:06:106
18711012241206,27sleep00-21swapper/019:07:490
18710762240231,6sleep20-21swapper/219:07:262
18712082238222,9sleep50-21swapper/519:09:145
18709452236217,12sleep30-21swapper/319:05:423
187155799360,35cyclictest0-21swapper/622:09:336
1871554993632,3cyclictest1391-21snmpd23:03:525
1871561993535,0cyclictest1835852-21kworker/7:2+events21:04:177
1871561993521,13cyclictest1835852-21kworker/7:2+events20:57:137
1871561993521,13cyclictest1835852-21kworker/7:2+events19:47:357
187155799350,1cyclictest0-21swapper/623:16:506
187154699350,34cyclictest0-21swapper/321:52:383
1871561993432,2cyclictest1977313-21cat22:20:167
187155799340,33cyclictest0-21swapper/620:56:256
187154699340,13cyclictest0-21swapper/322:37:093
1871561993333,0cyclictest1835852-21kworker/7:2+events20:33:177
1871542993332,1cyclictest1391-21snmpd20:05:332
1871542993332,1cyclictest1391-21snmpd20:05:322
1871546993131,0cyclictest0-21swapper/322:09:113
1871537993130,1cyclictest0-21swapper/020:02:260
1871551993029,1cyclictest1391-21snmpd20:27:114
1871551993029,1cyclictest1391-21snmpd00:01:424
1871542993030,0cyclictest0-21swapper/223:06:232
1871542993030,0cyclictest0-21swapper/219:25:052
1871542993030,0cyclictest0-21swapper/200:27:332
187154299300,30cyclictest0-21swapper/221:29:312
1871554992928,1cyclictest0-21swapper/519:17:155
1871551992928,1cyclictest1391-21snmpd23:28:024
1871542992929,0cyclictest0-21swapper/222:19:322
1871542992929,0cyclictest0-21swapper/221:53:412
1871542992929,0cyclictest0-21swapper/221:19:362
187154299290,0cyclictest0-21swapper/220:20:252
1871540992928,1cyclictest1391-21snmpd00:06:041
1871561992827,1cyclictest1935015-21kworker/7:1+events21:35:207
1871554992827,1cyclictest0-21swapper/523:54:245
1871546992826,1cyclictest1391-21snmpd00:35:403
1871542992828,0cyclictest0-21swapper/223:54:302
1871542992828,0cyclictest0-21swapper/221:36:402
1871542992828,0cyclictest0-21swapper/220:52:562
1871542992828,0cyclictest0-21swapper/220:01:492
1871542992828,0cyclictest0-21swapper/200:17:052
1871546992726,0cyclictest0-21swapper/300:27:173
1871542992727,0cyclictest0-21swapper/219:17:342
187154299270,27cyclictest0-21swapper/219:35:292
187154299270,27cyclictest0-21swapper/200:08:062
1871561992626,0cyclictest1986908-21kworker/7:2+events23:59:077
1871561992626,0cyclictest0-21swapper/700:36:347
1871557992626,0cyclictest0-21swapper/621:53:306
1871554992626,0cyclictest0-21swapper/520:13:115
1871554992626,0cyclictest0-21swapper/520:13:115
1871554992626,0cyclictest0-21swapper/519:23:485
1871554992612,1cyclictest0-21swapper/521:06:405
1871542992625,1cyclictest1932347-21sed20:59:592
1871537992612,1cyclictest0-21swapper/023:20:230
1871561992525,0cyclictest1986908-21kworker/7:2+events00:18:447
1871561992525,0cyclictest1935015-21kworker/7:1+events21:52:177
1871551992524,1cyclictest1391-21snmpd22:32:034
187155199250,23cyclictest0-21swapper/422:55:564
1871546992524,1cyclictest0-21swapper/322:00:023
1871542992525,0cyclictest0-21swapper/220:34:032
1871542992524,1cyclictest41-21ksoftirqd/223:37:142
1871542992524,1cyclictest41-21ksoftirqd/223:37:132
1871540992522,2cyclictest1391-21snmpd00:19:531
1871561992424,0cyclictest1986908-21kworker/7:2+events23:30:407
1871561992424,0cyclictest1986908-21kworker/7:2+events23:00:307
1871561992424,0cyclictest1935015-21kworker/7:1+events22:10:577
1871561992424,0cyclictest1835852-21kworker/7:2+events19:32:397
1871561992421,2cyclictest1391-21snmpd21:13:257
1871557992421,2cyclictest1892643-21cat19:45:156
1871554992424,0cyclictest0-21swapper/519:58:365
1871554992422,2cyclictest1391-21snmpd21:31:465
187155499240,22cyclictest0-21swapper/522:40:165
187155499240,22cyclictest0-21swapper/521:29:175
1871551992421,2cyclictest1391-21snmpd21:34:284
1871546992422,2cyclictest1391-21snmpd23:56:033
1871546992421,3cyclictest1391-21snmpd22:43:463
1871546992421,2cyclictest1391-21snmpd19:43:553
1871542992424,0cyclictest0-21swapper/221:21:372
1871542992421,2cyclictest1892624-21cat19:45:152
1871540992420,3cyclictest2012836-21cat23:25:191
187153799240,22cyclictest0-21swapper/023:52:160
1871561992323,0cyclictest1986908-21kworker/7:2+events00:30:367
1871561992323,0cyclictest1835852-21kworker/7:2+events19:57:377
1871561992323,0cyclictest1651270-21kworker/7:1+events19:14:417
1871561992322,1cyclictest1935015-21kworker/7:1+events21:59:277
1871561992322,1cyclictest1935015-21kworker/7:1+events21:31:177
1871561992322,1cyclictest1935015-21kworker/7:1+events21:08:127
1871561992322,1cyclictest1835852-21kworker/7:2+events20:10:307
1871561992322,1cyclictest1835852-21kworker/7:2+events20:10:297
1871561992321,2cyclictest1391-21snmpd00:10:517
1871561992321,1cyclictest1986908-21kworker/7:2+events00:27:117
1871561992321,1cyclictest1935015-21kworker/7:1+events22:17:327
1871561992321,1cyclictest1935015-21kworker/7:1+events22:03:227
1871561992321,1cyclictest1835852-21kworker/7:2+events20:36:237
1871557992320,2cyclictest1895359-21cat19:50:146
187155799230,21cyclictest0-21swapper/623:20:026
187155799230,21cyclictest0-21swapper/622:12:386
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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