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2025-07-12 - 11:02

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 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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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 rackcslot7s.osadl.org (updated Sat Jul 12, 2025 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17497152980,7sleep30-21swapper/322:15:313
162399840,5rtkit-daemon0-21swapper/100:05:461
17523302830,8sleep12197014-21PK-Backend22:25:031
17523302830,8sleep12197014-21PK-Backend22:25:031
162399820,9rtkit-daemon1791627-21ntp_states00:15:261
162399820,14rtkit-daemon1938-21gsd-housekeepin00:21:071
162399820,14rtkit-daemon1938-21gsd-housekeepin00:21:071
168325199789,18cyclictest1753-21gnome-shell00:30:222
162399770,6rtkit-daemon2197014-21PK-Backend00:13:521
162399770,5rtkit-daemon0-21swapper/123:40:451
162399770,5rtkit-daemon0-21swapper/123:35:121
168288427646,22sleep30-21swapper/319:07:153
168279727139,9sleep10-21swapper/119:06:091
168300326848,14sleep00-21swapper/019:08:450
1683251996514,19cyclictest1753-21gnome-shell21:30:132
168162326542,16sleep20-21swapper/219:05:102
1683251996215,18cyclictest1753-21gnome-shell21:35:272
1683251996215,18cyclictest1753-21gnome-shell21:35:262
162399620,9rtkit-daemon1622-21rtkit-daemon20:27:011
1683251996115,18cyclictest1753-21gnome-shell00:25:132
1683251996115,18cyclictest1753-21gnome-shell00:25:122
162399610,8rtkit-daemon1622-21rtkit-daemon22:38:541
162399610,8rtkit-daemon1622-21rtkit-daemon21:24:141
162399600,9rtkit-daemon1622-21rtkit-daemon21:50:511
168325199596,24cyclictest1753-21gnome-shell20:35:262
168325199596,24cyclictest1753-21gnome-shell20:35:262
1683251995914,17cyclictest1753-21gnome-shell20:50:252
1683251995912,30cyclictest1753-21gnome-shell19:24:422
162399590,9rtkit-daemon1622-21rtkit-daemon21:12:391
162399590,9rtkit-daemon1622-21rtkit-daemon20:09:331
162399590,9rtkit-daemon1622-21rtkit-daemon20:09:321
162399590,40rtkit-daemon0-21swapper/120:42:501
1683251995815,23cyclictest1753-21gnome-shell20:24:212
1683251995813,27cyclictest1753-21gnome-shell22:55:212
1683251995813,18cyclictest1753-21gnome-shell22:45:292
1683251995810,18cyclictest1753-21gnome-shell22:30:162
1683251995810,17cyclictest1753-21gnome-shell23:45:012
162399580,9rtkit-daemon1622-21rtkit-daemon22:18:371
162399580,9rtkit-daemon1622-21rtkit-daemon20:14:300
168325199577,26cyclictest1753-21gnome-shell22:39:202
1683251995715,24cyclictest1753-21gnome-shell22:43:392
1683251995714,24cyclictest1753-21gnome-shell23:06:052
1683251995713,26cyclictest1753-21gnome-shell21:14:402
1683251995713,26cyclictest1753-21gnome-shell20:05:242
1683251995713,26cyclictest1753-21gnome-shell20:05:232
1683251995713,17cyclictest1753-21gnome-shell19:45:162
1683251995712,24cyclictest1753-21gnome-shell21:47:292
1683251995712,24cyclictest1753-21gnome-shell20:04:252
168324199579,43cyclictest1769802-21perf23:15:000
168325199567,30cyclictest1753-21gnome-shell20:26:492
1683251995615,24cyclictest1753-21gnome-shell23:53:092
1683251995615,23cyclictest1753-21gnome-shell19:32:202
1683251995613,17cyclictest1753-21gnome-shell23:45:162
1683251995612,26cyclictest1753-21gnome-shell19:12:292
1683251995612,26cyclictest1753-21gnome-shell00:39:332
1683251995612,23cyclictest1753-21gnome-shell22:07:272
1683251995612,18cyclictest1753-21gnome-shell21:15:272
1683251995612,18cyclictest1753-21gnome-shell21:15:262
1683251995611,23cyclictest1753-21gnome-shell23:32:382
162399560,9rtkit-daemon1622-21rtkit-daemon20:32:511
1683251995514,24cyclictest1753-21gnome-shell21:29:542
1683251995514,23cyclictest1753-21gnome-shell19:25:282
1683251995513,24cyclictest1753-21gnome-shell23:37:342
1683251995513,17cyclictest1753-21gnome-shell20:10:202
1683251995513,13cyclictest1753-21gnome-shell20:55:152
1683251995512,23cyclictest1753-21gnome-shell22:50:372
1683251995512,15cyclictest1693242-21/usr/sbin/munin19:35:242
1683251995511,24cyclictest1753-21gnome-shell21:59:562
1683251995511,23cyclictest1753-21gnome-shell00:07:422
162399550,8rtkit-daemon1622-21rtkit-daemon21:18:511
162399550,8rtkit-daemon1622-21rtkit-daemon21:18:501
168325599542,32cyclictest854-21avahi-daemon19:42:513
168325199549,19cyclictest1753-21gnome-shell22:15:012
168325199549,19cyclictest1753-21gnome-shell00:22:062
168325199549,19cyclictest1753-21gnome-shell00:22:052
168325199548,21cyclictest1713126-21sensors_temp20:30:272
168325199548,19cyclictest1753-21gnome-shell20:44:322
168325199545,12cyclictest1700231-21hddtemp_smartct19:55:232
1683251995414,23cyclictest1753-21gnome-shell21:53:142
1683251995413,16cyclictest1753-21gnome-shell23:15:262
1683251995410,24cyclictest1753-21gnome-shell19:19:432
168325199540,50cyclictest1622-21rtkit-daemon00:18:262
168324699540,50cyclictest1622-21rtkit-daemon20:03:491
1683241995417,11cyclictest438-20systemd-journal21:05:220
1683251995313,21cyclictest1753-21gnome-shell00:11:402
1683251995312,26cyclictest1753-21gnome-shell21:40:292
1683251995312,17cyclictest1698756-21needreboot19:50:252
168324699530,49cyclictest1622-21rtkit-daemon20:57:511
1683241995320,28cyclictest1727740-21cut21:15:020
168325199527,20cyclictest1765216-21needreboot23:00:232
168325199527,16cyclictest1753-21gnome-shell23:27:252
1683251995213,23cyclictest1753-21gnome-shell23:56:402
1683241995210,13cyclictest2181-21gdbus23:05:010
162399520,8rtkit-daemon1622-21rtkit-daemon21:29:440
16978972510,7sleep02197014-21PK-Backend19:50:020
1683251995113,20cyclictest1753-21gnome-shell21:03:272
1683251995112,23cyclictest1753-21gnome-shell00:03:482
1683251995111,23cyclictest1753-21gnome-shell20:17:412
1683241995117,11cyclictest1747556-21cat22:10:160
1683251995013,14cyclictest1769776-21chrt23:14:532
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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