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2025-11-30 - 13:06

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #1

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.

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 rack0slot1s.osadl.org (updated Sun Nov 30, 2025 00:45:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2802399132130,1cyclictest0-21swapper/421:03:324
28043991290,128cyclictest0-21swapper/719:22:497
2803699129126,2cyclictest0-21swapper/622:59:076
2802399129126,2cyclictest0-21swapper/420:59:174
2803099128127,1cyclictest0-21swapper/520:58:025
2802399128126,2cyclictest0-21swapper/423:17:354
2801199128124,4cyclictest29-21ksoftirqd/220:47:362
2804399127126,1cyclictest0-21swapper/700:26:027
2804399127124,2cyclictest0-21swapper/720:08:187
2799499127126,0cyclictest3-21ksoftirqd/019:29:370
28036991260,125cyclictest0-21swapper/600:36:396
28030991260,1cyclictest0-21swapper/519:20:185
28023991260,125cyclictest0-21swapper/421:17:164
2801199126123,3cyclictest29-21ksoftirqd/221:10:382
2804399125123,1cyclictest0-21swapper/719:12:027
2804399125123,1cyclictest0-21swapper/719:12:017
2802399125124,1cyclictest0-21swapper/421:21:574
2801199125121,4cyclictest29-21ksoftirqd/219:35:042
2801199125120,4cyclictest29-21ksoftirqd/200:34:462
2804399124123,1cyclictest0-21swapper/723:22:307
2803099124123,1cyclictest3567-21chk_conn_tcp19:14:025
2803099124123,1cyclictest3567-21chk_conn_tcp19:14:015
2803099124121,3cyclictest53-21ksoftirqd/522:47:555
2803099124121,3cyclictest53-21ksoftirqd/522:47:555
2802399124122,2cyclictest0-21swapper/419:35:094
2800599124122,1cyclictest21-21ksoftirqd/100:06:271
2802399123122,1cyclictest0-21swapper/423:00:004
2802399123122,1cyclictest0-21swapper/421:13:354
28023991230,122cyclictest0-21swapper/420:06:264
2801199123121,1cyclictest29-21ksoftirqd/220:36:512
2801199123120,3cyclictest29-21ksoftirqd/223:59:122
28030991220,1cyclictest0-21swapper/523:45:345
2800599122119,3cyclictest21-21ksoftirqd/122:31:421
2799499122122,0cyclictest3-21ksoftirqd/021:25:250
2803099121119,1cyclictest0-21swapper/521:50:325
2802399121119,1cyclictest0-21swapper/423:24:494
2802399121118,2cyclictest0-21swapper/419:55:254
2802399121118,2cyclictest0-21swapper/419:29:534
2801199121121,0cyclictest29-21ksoftirqd/220:10:442
2803699120118,1cyclictest0-21swapper/619:33:266
2801899120120,0cyclictest37-21ksoftirqd/321:52:193
2800599120118,1cyclictest21-21ksoftirqd/120:53:401
2804399119118,1cyclictest0-21swapper/723:52:017
2803699119117,1cyclictest0-21swapper/600:09:146
28036991190,118cyclictest0-21swapper/619:45:376
2803099119116,2cyclictest0-21swapper/521:04:045
2801899119117,1cyclictest37-21ksoftirqd/319:23:213
2801199119117,1cyclictest29-21ksoftirqd/221:53:512
2802399118116,1cyclictest0-21swapper/420:38:184
2801899118117,0cyclictest37-21ksoftirqd/319:41:293
2801899118116,1cyclictest37-21ksoftirqd/323:44:323
2801199118118,0cyclictest29-21ksoftirqd/220:41:462
2800599118117,1cyclictest21-21ksoftirqd/120:11:311
2800599118117,0cyclictest21-21ksoftirqd/119:30:261
2803099117115,1cyclictest0-21swapper/522:41:525
2803099117115,1cyclictest0-21swapper/522:41:515
2803099117114,2cyclictest0-21swapper/520:53:295
2800599117112,4cyclictest21-21ksoftirqd/123:56:111
2799499117116,0cyclictest3-21ksoftirqd/021:02:480
2803099116115,1cyclictest0-21swapper/523:54:105
28030991160,1cyclictest0-21swapper/520:49:295
2801199116116,0cyclictest29-21ksoftirqd/200:01:402
2799499116115,0cyclictest3-21ksoftirqd/023:48:500
2803699115113,1cyclictest0-21swapper/623:30:426
28036991150,114cyclictest0-21swapper/621:11:006
2802399115112,2cyclictest0-21swapper/422:48:064
2802399115112,2cyclictest0-21swapper/422:48:064
2801899115113,2cyclictest190750irq/36-eth1-rx-19:35:293
2801199115114,0cyclictest29-21ksoftirqd/223:35:402
2800599115114,0cyclictest21-21ksoftirqd/120:47:191
2803699114112,1cyclictest0-21swapper/621:51:106
2802399114113,1cyclictest0-21swapper/420:10:034
2800599114114,0cyclictest21-21ksoftirqd/100:38:381
2800599114113,0cyclictest21-21ksoftirqd/123:24:221
28043991130,112cyclictest0-21swapper/719:57:587
2803099113111,1cyclictest0-21swapper/522:32:085
28030991130,112cyclictest0-21swapper/522:56:285
2802399113111,1cyclictest0-21swapper/422:12:114
2802399113110,2cyclictest0-21swapper/420:50:404
2802399113110,2cyclictest0-21swapper/420:33:504
2801199113113,0cyclictest29-21ksoftirqd/221:28:082
2801199113113,0cyclictest29-21ksoftirqd/219:15:462
2801199113111,1cyclictest29-21ksoftirqd/221:04:362
2800599113112,1cyclictest21-21ksoftirqd/120:15:291
2800599113112,0cyclictest21-21ksoftirqd/119:59:461
2800599113111,1cyclictest21-21ksoftirqd/121:14:141
2799499113113,0cyclictest3-21ksoftirqd/020:09:340
2799499113111,1cyclictest3-21ksoftirqd/020:39:290
2800599112111,1cyclictest21-21ksoftirqd/121:52:241
2800599112111,1cyclictest21-21ksoftirqd/121:04:091
2799499112112,0cyclictest3-21ksoftirqd/021:18:050
2799499112111,1cyclictest0-21swapper/000:39:340
2802399111110,1cyclictest0-21swapper/400:31:124
2801899111105,5cyclictest37-21ksoftirqd/319:10:033
2801899111105,5cyclictest37-21ksoftirqd/319:10:033
2801199111107,4cyclictest29-21ksoftirqd/200:29:542
2799499111110,0cyclictest3-21ksoftirqd/000:22:290
2803099110108,1cyclictest0-21swapper/500:29:095
2800599110109,0cyclictest21-21ksoftirqd/123:34:371
2800599110109,0cyclictest21-21ksoftirqd/119:27:481
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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