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2024-04-25 - 22:46

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #a, slot #5

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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackaslot5s.osadl.org (updated Thu Apr 25, 2024 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811040,0rcu_preempt3-21ksoftirqd/010:31:110
81860,0rcu_preempt3-21ksoftirqd/011:37:290
36102740,0chrt9950irq/345-484840011:09:040
81730,0rcu_preempt3-21ksoftirqd/012:34:490
10050720,0irq/346-484840054-21kswapd012:18:320
81680,0rcu_preempt3-21ksoftirqd/009:24:230
81660,0rcu_preempt19-21ksoftirqd/112:24:511
10050650,0irq/346-48484005517-21ssh09:15:051
81640,0rcu_preempt19-21ksoftirqd/110:40:481
81640,0rcu_preempt19-21ksoftirqd/109:40:041
81640,0rcu_preempt19-21ksoftirqd/109:30:101
81640,0rcu_preempt0-21swapper/010:12:560
81630,0rcu_preempt19-21ksoftirqd/110:25:381
81630,0rcu_preempt19-21ksoftirqd/107:32:131
81630,0rcu_preempt0-21swapper/011:44:330
81610,0rcu_preempt7402-21ssh12:25:010
81610,0rcu_preempt19-21ksoftirqd/110:45:191
10050610,0irq/346-48484009878-21ssh09:59:031
81600,0rcu_preempt3-21ksoftirqd/010:17:370
81600,0rcu_preempt19-21ksoftirqd/107:20:401
81590,0rcu_preempt19-21ksoftirqd/110:09:131
81580,0rcu_preempt3-21ksoftirqd/009:14:440
81580,0rcu_preempt19-21ksoftirqd/110:15:591
81580,0rcu_preempt19-21ksoftirqd/110:02:411
81580,0rcu_preempt19-21ksoftirqd/109:26:281
81570,0rcu_preempt8804-21ping08:04:410
81570,0rcu_preempt3-21ksoftirqd/011:10:190
81570,0rcu_preempt3-21ksoftirqd/008:19:290
9950560,0irq/345-48484003-21ksoftirqd/009:35:080
81560,0rcu_preempt3-21ksoftirqd/012:19:270
81560,0rcu_preempt3-21ksoftirqd/009:49:430
81560,0rcu_preempt19-21ksoftirqd/111:57:521
81560,0rcu_preempt15718-21kworker/1:210:54:331
81550,0rcu_preempt3-21ksoftirqd/011:24:550
81550,0rcu_preempt3-21ksoftirqd/010:34:370
81550,0rcu_preempt3-21ksoftirqd/009:04:440
81550,0rcu_preempt3-21ksoftirqd/008:39:320
81550,0rcu_preempt3-21ksoftirqd/007:09:350
81550,0rcu_preempt19-21ksoftirqd/112:34:221
9950540,0irq/345-4848400171rcuc/109:47:561
9950540,0irq/345-484840014738-1kworker/0:2H12:03:280
81540,0rcu_preempt3-21ksoftirqd/012:29:400
81540,0rcu_preempt3-21ksoftirqd/011:49:360
81540,0rcu_preempt3-21ksoftirqd/011:19:480
81540,0rcu_preempt3-21ksoftirqd/010:53:030
81540,0rcu_preempt3-21ksoftirqd/010:45:230
81540,0rcu_preempt3-21ksoftirqd/010:24:380
81540,0rcu_preempt3-21ksoftirqd/007:54:340
81540,0rcu_preempt19-21ksoftirqd/108:14:361
81530,0rcu_preempt3-21ksoftirqd/012:13:400
81530,0rcu_preempt3-21ksoftirqd/009:59:350
81530,0rcu_preempt3-21ksoftirqd/007:59:420
81530,0rcu_preempt28444-21kworker/0:207:24:070
81530,0rcu_preempt0-21swapper/112:36:341
10050530,0irq/346-484840054-21kswapd011:42:121
9950520,0irq/345-484840010813-1kworker/1:0H11:17:561
81520,0rcu_preempt3-21ksoftirqd/010:09:250
81520,0rcu_preempt3-21ksoftirqd/009:54:350
81520,0rcu_preempt3-21ksoftirqd/009:34:250
10050520,0irq/346-484840014813-1kworker/0:0H09:27:390
9950510,0irq/345-48484000-21swapper/110:38:401
81510,0rcu_preempt3-21ksoftirqd/011:54:500
81510,0rcu_preempt3-21ksoftirqd/011:39:510
81510,0rcu_preempt3-21ksoftirqd/008:26:370
81510,0rcu_preempt23503-21apt-get07:04:350
81510,0rcu_preempt19-21ksoftirqd/111:39:261
81510,0rcu_preempt19-21ksoftirqd/110:19:431
81510,0rcu_preempt0-21swapper/111:09:481
81500,0rcu_preempt7496-21kworker/1:111:24:151
81500,0rcu_preempt3-21ksoftirqd/011:29:550
81500,0rcu_preempt3-21ksoftirqd/010:59:410
81500,0rcu_preempt3-21ksoftirqd/009:11:320
81500,0rcu_preempt3-21ksoftirqd/009:00:210
81500,0rcu_preempt19-21ksoftirqd/110:09:461
81500,0rcu_preempt19-21ksoftirqd/108:04:541
81500,0rcu_preempt0-21swapper/111:29:141
10050500,0irq/346-48484008581-21ssh09:19:281
81490,0rcu_preempt8804-21ping08:14:360
81490,0rcu_preempt3-21ksoftirqd/010:55:040
81490,0rcu_preempt24528-21memory08:44:490
81490,0rcu_preempt19-21ksoftirqd/108:10:061
81480,0rcu_preempt9221-21php-cgi11:14:450
81480,0rcu_preempt3-21ksoftirqd/012:04:470
81480,0rcu_preempt3-21ksoftirqd/009:39:580
81480,0rcu_preempt3-21ksoftirqd/008:54:450
81480,0rcu_preempt25588-21munin-node0
81480,0rcu_preempt19-21ksoftirqd/111:05:511
81480,0rcu_preempt19-21ksoftirqd/109:37:511
81480,0rcu_preempt19-21ksoftirqd/108:24:571
10050480,0irq/346-484840054-21kswapd011:32:001
10050480,0irq/346-484840013062-1kworker/0:3H10:42:520
81470,0rcu_preempt3-21ksoftirqd/010:19:560
81470,0rcu_preempt20648-21apt-get08:34:370
81470,0rcu_preempt19-21ksoftirqd/107:59:481
81470,0rcu_preempt19-21ksoftirqd/107:57:551
81470,0rcu_preempt19-21ksoftirqd/107:34:271
81470,0rcu_preempt19006-21apt-get08:29:330
81470,0rcu_preempt17813-21chrt11:59:491
4350470,0irq/32-4330000028289-21ping07:39:390
4350470,0irq/32-4330000028289-21ping07:39:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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