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2025-08-29 - 12:00

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 Fri Aug 29, 2025 00:45:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
752499132129,2cyclictest0-21swapper/500:08:005
749599132132,0cyclictest21-21ksoftirqd/119:50:011
749599131130,0cyclictest21-21ksoftirqd/100:17:591
750499129127,1cyclictest29-21ksoftirqd/221:41:232
7495991260,125cyclictest0-21swapper/123:18:251
753799125123,1cyclictest0-21swapper/719:47:587
753099124123,1cyclictest0-21swapper/621:41:236
751299124123,0cyclictest37-21ksoftirqd/319:47:573
753799123121,1cyclictest0-21swapper/720:46:417
752499123121,1cyclictest5350ksoftirqd/500:04:375
749599123122,0cyclictest21-21ksoftirqd/120:41:121
753799121120,1cyclictest0-21swapper/719:41:377
753799121119,1cyclictest0-21swapper/723:42:027
751299121120,0cyclictest37-21ksoftirqd/320:46:413
749599121119,1cyclictest0-21swapper/123:38:381
749599121119,1cyclictest0-21swapper/121:59:521
753799120117,2cyclictest0-21swapper/723:59:257
7530991200,119cyclictest0-21swapper/620:52:216
751799120119,1cyclictest0-21swapper/420:41:394
751299120119,0cyclictest37-21ksoftirqd/323:42:023
751299119119,0cyclictest37-21ksoftirqd/319:41:373
751799118117,1cyclictest0-21swapper/400:11:424
751299118116,1cyclictest37-21ksoftirqd/323:59:253
753799117116,1cyclictest0-21swapper/723:03:267
753099117114,2cyclictest0-21swapper/620:44:416
751799116115,1cyclictest0-21swapper/419:42:514
751799116114,1cyclictest0-21swapper/400:00:314
752499115115,0cyclictest190750irq/36-eth1-rx-19:11:085
751299115115,0cyclictest37-21ksoftirqd/323:03:263
748999115115,0cyclictest3-21ksoftirqd/020:41:390
752499114114,0cyclictest190750irq/36-eth1-rx-20:39:085
750499114112,1cyclictest29-21ksoftirqd/221:09:132
748999114112,1cyclictest3-21ksoftirqd/023:36:280
753799113112,1cyclictest0-21swapper/719:17:347
753799113110,2cyclictest4758-21chk_conn_tcp00:00:247
751799113112,1cyclictest0-21swapper/422:05:174
751799113111,1cyclictest883-21chk_conn_tcp23:12:554
751299113112,0cyclictest37-21ksoftirqd/319:17:343
750499113112,0cyclictest29-21ksoftirqd/221:48:052
751299112111,0cyclictest37-21ksoftirqd/300:00:243
748999112112,0cyclictest3-21ksoftirqd/000:11:430
751799111109,1cyclictest12369-21chk_conn_tcp21:10:164
751799111109,1cyclictest11735-21chk_conn_tcp23:04:414
750499111110,0cyclictest29-21ksoftirqd/221:12:072
750499111109,1cyclictest29-21ksoftirqd/200:14:232
748999110110,0cyclictest3-21ksoftirqd/019:42:510
748999110110,0cyclictest3-21ksoftirqd/000:00:310
753799109107,2cyclictest0-21swapper/719:21:457
753099109107,1cyclictest0-21swapper/621:48:056
753099109106,2cyclictest0-21swapper/621:12:076
752499109107,1cyclictest0-21swapper/523:56:535
751799109105,3cyclictest13930-21ssh00:09:044
750499109107,1cyclictest29-21ksoftirqd/200:08:472
748999109107,1cyclictest3-21ksoftirqd/023:12:540
753799108105,2cyclictest0-21swapper/721:14:007
753099108107,1cyclictest0-21swapper/621:09:126
748999108108,0cyclictest3-21ksoftirqd/022:05:180
753799107105,1cyclictest17453-21chk_conn_tcp22:03:067
753099107104,2cyclictest0-21swapper/600:14:236
751299107105,1cyclictest37-21ksoftirqd/322:03:063
753799106104,1cyclictest0-21swapper/700:36:077
7530991060,2cyclictest0-21swapper/600:06:416
751799106104,1cyclictest26033-21chk_conn_tcp22:19:254
751299106106,0cyclictest37-21ksoftirqd/319:21:453
751299106105,1cyclictest37-21ksoftirqd/321:14:003
748999106104,1cyclictest3-21ksoftirqd/023:04:410
748999106104,1cyclictest3-21ksoftirqd/021:10:160
748999106101,4cyclictest3-21ksoftirqd/000:09:040
749599105104,1cyclictest0-21swapper/120:31:081
749599105104,1cyclictest0-21swapper/120:31:071
751799104101,2cyclictest0-21swapper/400:29:074
751799104101,2cyclictest0-21swapper/400:29:064
751299104103,0cyclictest37-21ksoftirqd/300:36:063
749599104100,4cyclictest21-21ksoftirqd/100:32:511
749599103102,0cyclictest21-21ksoftirqd/120:22:041
752499102102,0cyclictest53-21ksoftirqd/520:22:465
750499102101,0cyclictest29-21ksoftirqd/200:32:282
75379910098,1cyclictest0-21swapper/723:53:197
75379910098,1cyclictest0-21swapper/720:24:437
74899910099,0cyclictest3-21ksoftirqd/022:19:250
7517999996,2cyclictest0-21swapper/422:04:594
7489999997,1cyclictest3-21ksoftirqd/000:29:070
7489999997,1cyclictest3-21ksoftirqd/000:29:060
7517999896,1cyclictest6997-21chk_conn_tcp00:31:214
7512999898,0cyclictest37-21ksoftirqd/323:53:183
7512999897,0cyclictest37-21ksoftirqd/320:24:433
7537999796,1cyclictest0-21swapper/700:08:417
7530999796,1cyclictest0-21swapper/600:32:286
7517999795,1cyclictest0-21swapper/419:57:524
7512999796,0cyclictest37-21ksoftirqd/300:08:423
7504999796,1cyclictest29-21ksoftirqd/221:34:122
7517999695,1cyclictest0-21swapper/419:12:254
7504999695,1cyclictest29-21ksoftirqd/220:37:002
7504999694,2cyclictest0-21swapper/219:53:292
7504999594,1cyclictest29-21ksoftirqd/222:23:592
7504999594,0cyclictest29-21ksoftirqd/219:23:502
7537999492,1cyclictest0-21swapper/720:43:577
7524999492,1cyclictest0-21swapper/520:49:495
7504999493,0cyclictest29-21ksoftirqd/220:27:202
7504999492,1cyclictest29-21ksoftirqd/200:29:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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