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2024-04-29 - 21:59

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, 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 50 highest latencies:
System rack7slot7s.osadl.org (updated Mon Apr 29, 2024 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10498210685,17sleep10-21swapper/107:07:281
10655210289,9sleep30-21swapper/307:09:313
1053928270,8sleep00-21swapper/007:08:000
1056628063,6sleep20-21swapper/207:08:222
10789992320,2cyclictest7744-21snmpd10:55:113
10789992320,2cyclictest7744-21snmpd10:04:483
1078999230,1cyclictest0-21swapper/312:15:453
1078999230,1cyclictest0-21swapper/311:42:583
10775992320,2cyclictest7744-21snmpd12:15:430
10784992219,2cyclictest7744-21snmpd12:14:372
10784992219,2cyclictest7744-21snmpd10:01:422
1078499220,22cyclictest0-21swapper/211:28:202
10780992220,1cyclictest7744-21snmpd11:53:031
1077599220,2cyclictest0-21swapper/010:10:120
10789992119,1cyclictest7744-21snmpd12:30:583
10789992119,1cyclictest7744-21snmpd11:56:153
1078499211,20cyclictest12766-21kworker/2:211:49:392
1078499210,20cyclictest0-21swapper/211:00:352
10780992118,2cyclictest7744-21snmpd12:01:491
10775992119,1cyclictest7744-21snmpd10:52:550
10775992118,2cyclictest7744-21snmpd12:38:560
10775992118,2cyclictest7744-21snmpd09:30:500
1077599211,18cyclictest31827-21sh11:00:290
10789992017,2cyclictest7744-21snmpd11:49:033
10789992017,1cyclictest30782-21latency11:20:223
10784992017,2cyclictest2003-21grep07:55:322
10780992017,2cyclictest7744-21snmpd10:17:211
1078099200,0cyclictest0-21swapper/112:35:221
10789991916,3cyclictest39-21ksoftirqd/312:23:003
1078999191,17cyclictest7660-21ntp_offset10:20:243
10780991916,2cyclictest7744-21snmpd12:30:341
10775991917,1cyclictest7744-21snmpd10:47:550
1078999184,9cyclictest29865-21apt-get09:50:023
10789991817,1cyclictest0-21swapper/311:14:173
10789991815,2cyclictest7744-21snmpd10:09:183
10780991816,1cyclictest7744-21snmpd12:28:401
10775991816,1cyclictest7744-21snmpd11:58:590
204572170,0sleep20-21swapper/211:33:442
12222170,0sleep20-21swapper/209:51:422
10789991715,1cyclictest7744-21snmpd09:29:113
10789991714,2cyclictest7744-21snmpd10:25:073
10789991714,2cyclictest7744-21snmpd09:24:163
10784991714,2cyclictest7744-21snmpd10:58:472
1078499170,0cyclictest0-21swapper/209:23:512
10780991715,1cyclictest7744-21snmpd12:17:251
10789991615,1cyclictest0-21swapper/308:01:463
10789991613,2cyclictest7744-21snmpd09:15:283
1078999160,9cyclictest0-21swapper/312:13:593
1078499169,6cyclictest30979-21wc11:40:002
10784991614,1cyclictest538-21aten2_r7power_e12:00:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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