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2025-05-09 - 05:36

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 May 09, 2025 00:45:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2180299139138,1cyclictest0-21swapper/719:44:197
21802991330,132cyclictest0-21swapper/719:27:597
21781991330,132cyclictest0-21swapper/400:18:464
21795991320,131cyclictest0-21swapper/600:26:446
2178199131128,2cyclictest0-21swapper/419:54:014
2177499131127,3cyclictest37-21ksoftirqd/300:17:303
2180299129125,3cyclictest0-21swapper/722:49:357
21802991290,1cyclictest2594-21chk_conn_tcp19:33:127
2179599129128,1cyclictest0-21swapper/619:30:106
2179599129127,1cyclictest28268-21chk_conn_tcp22:40:196
21781991290,1cyclictest0-21swapper/419:26:564
2177499129129,0cyclictest37-21ksoftirqd/320:48:233
2176999129127,1cyclictest29-21ksoftirqd/200:26:452
2179599128127,1cyclictest0-21swapper/619:29:426
21795991280,1cyclictest0-21swapper/623:37:466
21781991280,127cyclictest0-21swapper/421:26:124
2177499128124,3cyclictest37-21ksoftirqd/320:14:103
2176999128126,1cyclictest29-21ksoftirqd/200:21:162
2176299128127,0cyclictest21-21ksoftirqd/120:42:441
2179599127126,1cyclictest0-21swapper/619:10:236
2179599127124,2cyclictest0-21swapper/621:27:226
2178699127126,1cyclictest0-21swapper/519:18:105
2177499127127,0cyclictest37-21ksoftirqd/319:19:593
2177499127125,1cyclictest37-21ksoftirqd/320:02:353
2180299126124,1cyclictest0-21swapper/723:25:427
2180299126124,1cyclictest0-21swapper/720:03:397
21795991260,125cyclictest7905-21chk_conn_tcp21:15:236
2176999126126,0cyclictest29-21ksoftirqd/223:37:232
2176999126126,0cyclictest29-21ksoftirqd/219:19:542
2176299126124,1cyclictest21-21ksoftirqd/119:20:081
2175699126126,0cyclictest3-21ksoftirqd/019:29:360
2180299125123,1cyclictest0-21swapper/719:23:407
2179599125124,1cyclictest0-21swapper/619:43:576
2178699125124,1cyclictest0-21swapper/521:30:095
2178699125124,1cyclictest0-21swapper/519:23:205
2178699125123,1cyclictest0-21swapper/519:33:225
2178199125123,1cyclictest0-21swapper/419:32:414
2178199125122,2cyclictest0-21swapper/419:22:224
2177499125124,0cyclictest37-21ksoftirqd/319:31:303
2177499125120,4cyclictest37-21ksoftirqd/320:43:253
2176999125125,0cyclictest29-21ksoftirqd/220:35:022
2176999125125,0cyclictest29-21ksoftirqd/219:30:402
2179599124123,1cyclictest0-21swapper/600:11:296
2178699124123,1cyclictest0-21swapper/519:40:545
2178699124123,1cyclictest0-21swapper/519:28:005
2177499124124,0cyclictest37-21ksoftirqd/320:22:533
2176999124124,0cyclictest29-21ksoftirqd/220:40:062
2175699124122,1cyclictest3-21ksoftirqd/019:30:030
2180299123122,1cyclictest0-21swapper/719:18:177
2179599123122,1cyclictest0-21swapper/623:57:156
2179599123122,1cyclictest0-21swapper/622:13:576
2176999123123,0cyclictest29-21ksoftirqd/219:28:432
2176999123123,0cyclictest29-21ksoftirqd/219:11:052
2176999123121,1cyclictest29-21ksoftirqd/222:40:182
2176299123121,1cyclictest21-21ksoftirqd/119:15:451
2175699123122,0cyclictest3-21ksoftirqd/000:18:310
2178199122122,0cyclictest45-21ksoftirqd/420:26:344
2178199122120,1cyclictest0-21swapper/419:11:074
2177499122122,0cyclictest37-21ksoftirqd/319:11:183
2177499122120,2cyclictest37-21ksoftirqd/323:07:493
2176999122120,1cyclictest29-21ksoftirqd/221:15:232
2176299122122,0cyclictest21-21ksoftirqd/119:39:581
2176299122120,1cyclictest0-21swapper/121:54:021
2175699122121,0cyclictest3-21ksoftirqd/022:11:280
2179599121120,1cyclictest0-21swapper/623:50:016
2179599121119,1cyclictest790-21chk_conn_tcp20:40:126
2180299120118,1cyclictest0-21swapper/719:59:457
2180299120118,1cyclictest0-21swapper/700:15:267
2179599120119,1cyclictest0-21swapper/620:34:566
2177499120120,0cyclictest37-21ksoftirqd/319:46:153
2176999120118,1cyclictest29-21ksoftirqd/221:27:222
2175699120120,0cyclictest3-21ksoftirqd/019:11:290
2176299119119,0cyclictest21-21ksoftirqd/122:21:591
2179599118117,1cyclictest0-21swapper/619:35:106
2178699118116,2cyclictest0-21swapper/500:38:415
2178699118115,2cyclictest0-21swapper/523:31:115
2177499118117,0cyclictest37-21ksoftirqd/321:01:093
2176999118118,0cyclictest29-21ksoftirqd/219:43:572
2180299117116,1cyclictest0-21swapper/700:25:177
2179599117115,1cyclictest0-21swapper/600:00:036
2178699117115,1cyclictest0-21swapper/519:36:175
2178199117115,1cyclictest0-21swapper/419:15:554
21781991170,2cyclictest0-21swapper/423:29:014
2176299117117,0cyclictest21-21ksoftirqd/123:10:511
2175699117117,0cyclictest3-21ksoftirqd/000:02:130
2175699117116,0cyclictest3-21ksoftirqd/023:46:380
2180299116115,1cyclictest0-21swapper/700:24:407
2179599116115,1cyclictest0-21swapper/619:22:356
2178699116115,0cyclictest190750irq/36-eth1-rx-21:07:515
2177499116116,0cyclictest37-21ksoftirqd/300:13:173
2176999116116,0cyclictest29-21ksoftirqd/223:57:152
2176999116116,0cyclictest29-21ksoftirqd/200:11:292
2176999116115,0cyclictest29-21ksoftirqd/222:13:572
2176299116114,1cyclictest28284-21latency_hist19:30:001
2175699116115,1cyclictest3-21ksoftirqd/020:13:070
2175699116115,1cyclictest3-21ksoftirqd/019:53:090
2180299115113,1cyclictest0-21swapper/720:09:157
21802991150,1cyclictest0-21swapper/723:49:137
2179599115114,1cyclictest0-21swapper/619:57:216
21795991150,114cyclictest0-21swapper/621:10:386
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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