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2022-07-05 - 08:22

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #c, 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 
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x86 Intel Celeron 33455 @1500 MHz, Linux 5.15.2-rt19 (Profile)

Latency plot of shadow in rack #c, slot #7
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 rackcslot7s.osadl.org (updated Tue Jul 05, 2022 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1623991210,28rtkit-daemon1753-21gnome-shell23:20:110
162399930,51rtkit-daemon0-21swapper/119:09:471
162399920,75rtkit-daemon0-21swapper/019:06:270
38310022890,6sleep20-21swapper/221:35:132
377872728869,13sleep30-21swapper/319:09:223
377858228873,9sleep20-21swapper/219:07:292
162399850,6rtkit-daemon0-21swapper/119:48:301
162399840,5rtkit-daemon0-21swapper/123:16:041
162399830,5rtkit-daemon0-21swapper/119:43:231
162399830,5rtkit-daemon0-21swapper/119:20:381
162399830,5rtkit-daemon0-21swapper/100:22:071
162399820,5rtkit-daemon0-21swapper/123:05:471
162399820,5rtkit-daemon0-21swapper/123:05:461
162399820,5rtkit-daemon0-21swapper/122:56:341
162399810,5rtkit-daemon0-21swapper/123:12:431
162399770,9rtkit-daemon1622-21rtkit-daemon21:15:033
162399770,5rtkit-daemon0-21swapper/120:43:181
162399770,5rtkit-daemon0-21swapper/120:32:431
162399760,6rtkit-daemon0-21swapper/123:51:321
162399760,6rtkit-daemon0-21swapper/123:51:321
162399760,6rtkit-daemon0-21swapper/122:50:221
162399750,5rtkit-daemon0-21swapper/120:59:271
162399740,5rtkit-daemon0-21swapper/120:47:321
38950912730,6chrt0-21swapper/300:35:123
38548512710,6sleep21826-21JS14:31:442
38145432710,5sleep00-21swapper/020:45:300
377894499708,31cyclictest3827822-21awk21:25:193
162399690,4rtkit-daemon0-21swapper/219:49:052
3778944996212,26cyclictest1753-21gnome-shell20:15:263
162399620,9rtkit-daemon1622-21rtkit-daemon21:40:063
377894499618,19cyclictest3851803-21perf22:35:013
3778944996014,16cyclictest1753-21gnome-shell23:11:553
3778944996013,17cyclictest1753-21gnome-shell23:20:383
3778944995914,17cyclictest1753-21gnome-shell00:25:193
377894499588,29cyclictest1753-21gnome-shell23:09:423
377894499588,29cyclictest1753-21gnome-shell23:09:423
3778944995815,16cyclictest438-20systemd-journal19:41:353
3778944995813,16cyclictest1753-21gnome-shell23:30:313
3778944995813,16cyclictest1753-21gnome-shell23:30:303
377894499578,28cyclictest1753-21gnome-shell23:42:493
377894499578,28cyclictest1753-21gnome-shell20:22:303
3778944995713,17cyclictest1753-21gnome-shell22:05:183
3778944995713,16cyclictest1753-21gnome-shell19:15:053
3778944995711,18cyclictest1753-21gnome-shell23:25:263
3778941995732,9cyclictest34-21ksoftirqd/222:47:332
162399570,37rtkit-daemon0-21swapper/122:38:301
377894499565,28cyclictest3881924-40apt-check23:57:183
3778944995613,15cyclictest1753-21gnome-shell00:15:213
162399560,9rtkit-daemon1622-21rtkit-daemon19:53:553
377894499558,26cyclictest1753-21gnome-shell00:35:003
377894499558,24cyclictest1753-21gnome-shell00:05:303
3778944995513,11cyclictest1753-21gnome-shell19:55:173
3778941995523,28cyclictest3840275-40lsb_release22:00:272
3778934995517,33cyclictest3837837-21wc21:55:200
377894499547,15cyclictest3809903-21df20:35:153
377894499547,15cyclictest3809903-21df20:35:143
377894499547,13cyclictest3790341-21sed19:40:013
3778944995414,20cyclictest1753-21gnome-shell21:06:253
3778944995413,14cyclictest3889165-21apt-get00:20:053
377894499537,20cyclictest3800989-21wc20:10:123
3778944995314,11cyclictest1753-21gnome-shell23:45:243
3778944995313,17cyclictest1753-21gnome-shell19:10:243
3778934995318,30cyclictest3862944-21basename23:05:190
3778934995318,30cyclictest3862944-21basename23:05:190
162399530,6rtkit-daemon1622-21rtkit-daemon20:04:063
377894499529,24cyclictest1753-21gnome-shell00:02:293
377894499529,16cyclictest1753-21gnome-shell22:56:243
377894499528,17cyclictest1753-21gnome-shell20:42:263
377894499526,23cyclictest0-21swapper/323:00:113
3778944995217,12cyclictest1753-21gnome-shell21:22:193
3778944995214,21cyclictest1753-21gnome-shell22:18:013
3778944995214,21cyclictest1753-21gnome-shell22:18:013
3778944995214,16cyclictest1753-21gnome-shell20:49:313
3778944995212,23cyclictest1753-21gnome-shell19:27:213
3778944995211,25cyclictest0-21swapper/320:05:273
3778944995210,17cyclictest3807778-21/usr/sbin/munin20:30:243
3778941995222,9cyclictest34-21ksoftirqd/219:11:102
3778941995221,8cyclictest34-21ksoftirqd/219:35:302
3778934995220,27cyclictest3895682-21netstat00:35:230
3778934995216,31cyclictest3804942-21cat20:20:240
377894499519,17cyclictest3887054-21awk00:10:313
377894499518,17cyclictest3874295-21sed23:35:283
377894499518,16cyclictest1753-21gnome-shell23:52:303
377894499518,16cyclictest1753-21gnome-shell23:52:303
377894499516,20cyclictest3838828-21users21:55:373
3778944995114,16cyclictest1753-21gnome-shell21:00:353
3778944995112,11cyclictest1753-21gnome-shell21:00:013
3778944995110,16cyclictest3847451-21sort22:20:213
3778944995110,13cyclictest1753-21gnome-shell22:53:503
3778941995121,9cyclictest34-21ksoftirqd/223:31:472
3778941995121,9cyclictest34-21ksoftirqd/223:31:472
3778934995116,30cyclictest3817285-21cat20:55:150
3778934995116,30cyclictest3786486-21sort19:30:020
162399510,8rtkit-daemon1622-21rtkit-daemon20:05:402
377894499507,27cyclictest1753-21gnome-shell19:21:073
377894499507,16cyclictest3843751-21df22:10:153
377894499507,16cyclictest3806678-21cat20:25:233
3778944995014,18cyclictest1753-21gnome-shell20:51:023
3778944995014,16cyclictest1753-21gnome-shell22:42:573
3778944995012,23cyclictest1753-21gnome-shell21:14:263
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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