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2025-09-19 - 02:52

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 Sep 19, 2025 00:45:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1789599136135,1cyclictest29-21ksoftirqd/222:18:082
1792299134131,2cyclictest0-21swapper/722:03:087
17922991280,1cyclictest0-21swapper/720:56:387
17908991280,127cyclictest0-21swapper/423:26:344
17908991270,126cyclictest0-21swapper/421:46:554
1789599127126,0cyclictest29-21ksoftirqd/219:36:292
1789599127120,6cyclictest29-21ksoftirqd/221:27:132
1788499127125,1cyclictest3-21ksoftirqd/023:45:380
1792299126125,1cyclictest0-21swapper/722:16:297
1790199126123,2cyclictest37-21ksoftirqd/322:11:473
1792299125120,4cyclictest12750-21chk_conn_tcp23:53:487
1790899125123,1cyclictest0-21swapper/419:51:354
1790899125123,1cyclictest0-21swapper/419:19:174
1789599125121,3cyclictest29-21ksoftirqd/221:42:212
1789599125121,3cyclictest29-21ksoftirqd/221:42:202
1792299124122,1cyclictest1658-21chk_conn_tcp22:58:037
1788499124124,0cyclictest3-21ksoftirqd/023:44:090
1790899122121,1cyclictest0-21swapper/420:07:164
1792299121119,1cyclictest0-21swapper/721:29:127
1790199119118,0cyclictest37-21ksoftirqd/322:55:353
1792299118116,1cyclictest0-21swapper/722:44:327
1790199118118,0cyclictest37-21ksoftirqd/323:45:563
1790199118118,0cyclictest37-21ksoftirqd/320:45:363
1788499118118,0cyclictest3-21ksoftirqd/022:24:490
1791799117115,1cyclictest0-21swapper/622:51:326
1791799117114,2cyclictest0-21swapper/600:05:416
1790199117117,0cyclictest37-21ksoftirqd/322:17:343
1791799116115,1cyclictest0-21swapper/619:54:006
1790199116116,0cyclictest37-21ksoftirqd/322:20:123
1790199116115,1cyclictest37-21ksoftirqd/321:28:363
1790199115115,0cyclictest37-21ksoftirqd/323:51:503
1790199115113,1cyclictest37-21ksoftirqd/322:35:543
1790199115112,2cyclictest37-21ksoftirqd/321:51:293
1789599115113,1cyclictest29-21ksoftirqd/200:15:552
1790899113110,2cyclictest0-21swapper/421:35:584
1790899113110,2cyclictest0-21swapper/421:35:584
1792299112110,1cyclictest19785-21ntp_states19:10:187
1792299112110,1cyclictest0-21swapper/720:41:227
1790199111111,0cyclictest37-21ksoftirqd/321:58:033
1789099111110,1cyclictest0-21swapper/120:56:491
1792299110108,1cyclictest0-21swapper/722:30:017
1790199110110,0cyclictest37-21ksoftirqd/323:01:423
1790199110108,1cyclictest37-21ksoftirqd/323:18:333
1788499110110,0cyclictest3-21ksoftirqd/020:39:580
1792299109107,1cyclictest22383-21chk_conn_tcp21:10:317
1791799109106,2cyclictest0-21swapper/622:06:516
1790899109106,2cyclictest0-21swapper/420:01:494
1792299108106,2cyclictest0-21swapper/721:24:077
1791799108107,1cyclictest0-21swapper/600:25:306
1791799108106,1cyclictest0-21swapper/620:51:516
1790199108108,0cyclictest37-21ksoftirqd/322:33:593
1790199108108,0cyclictest37-21ksoftirqd/322:05:343
1790199108108,0cyclictest37-21ksoftirqd/320:08:123
1790199108106,1cyclictest37-21ksoftirqd/322:03:083
1790199108106,1cyclictest37-21ksoftirqd/319:31:503
1791799107105,1cyclictest0-21swapper/620:59:396
1790199107106,1cyclictest37-21ksoftirqd/320:55:093
1790199107106,0cyclictest37-21ksoftirqd/320:22:553
1789599107106,0cyclictest29-21ksoftirqd/222:12:062
1792299106103,2cyclictest0-21swapper/721:34:087
1792299106103,2cyclictest0-21swapper/721:34:087
1791399106105,0cyclictest53-21ksoftirqd/520:56:495
1790899106104,1cyclictest0-21swapper/422:17:294
1791799105103,1cyclictest32293-21chk_conn_tcp20:41:116
1791799105103,1cyclictest20095-21chk_conn_tcp20:18:186
1791799105103,1cyclictest0-21swapper/621:04:416
1791799103100,2cyclictest0-21swapper/623:45:356
1790199103103,0cyclictest37-21ksoftirqd/321:15:543
1790199103102,0cyclictest37-21ksoftirqd/320:00:563
1789599103103,0cyclictest29-21ksoftirqd/221:35:062
1789599103103,0cyclictest29-21ksoftirqd/221:35:052
1789599103102,0cyclictest29-21ksoftirqd/219:12:482
179229910298,4cyclictest0-21swapper/722:07:507
1791799102100,2cyclictest0-21swapper/623:04:156
1788499102100,1cyclictest3-21ksoftirqd/022:02:000
17890999998,0cyclictest21-21ksoftirqd/100:23:351
17890999997,1cyclictest21-21ksoftirqd/122:18:431
17908999895,2cyclictest0-21swapper/422:14:024
17895999897,0cyclictest29-21ksoftirqd/219:20:422
17890999796,1cyclictest0-21swapper/119:33:481
17917999694,1cyclictest0-21swapper/623:05:136
17913999693,2cyclictest0-21swapper/522:18:435
17917999595,0cyclictest190750irq/36-eth1-rx-20:20:306
17895999595,0cyclictest29-21ksoftirqd/222:23:372
17895999594,1cyclictest0-21swapper/221:49:412
17922999492,1cyclictest0-21swapper/721:18:537
17913999493,1cyclictest0-21swapper/500:23:355
17895999493,0cyclictest29-21ksoftirqd/220:55:172
17922999392,1cyclictest0-21swapper/721:59:237
17908999391,1cyclictest0-21swapper/423:45:384
17884999291,1cyclictest3-21ksoftirqd/020:19:430
17913999191,0cyclictest53-21ksoftirqd/519:33:485
17908999190,1cyclictest0-21swapper/423:44:094
17884999190,0cyclictest3-21ksoftirqd/020:14:470
17901999090,0cyclictest37-21ksoftirqd/322:44:333
1789599890,1cyclictest0-21swapper/222:30:002
17884998989,0cyclictest3-21ksoftirqd/023:18:460
17884998785,1cyclictest3-21ksoftirqd/023:07:300
17901998684,1cyclictest37-21ksoftirqd/319:10:183
17908998584,1cyclictest0-21swapper/422:24:494
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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