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2024-05-29 - 19:14

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 Wed May 29, 2024 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81810,0rcu_preempt3-21ksoftirqd/010:21:310
81810,0rcu_preempt19683-21kworker/0:008:40:150
81800,0rcu_preempt3-21ksoftirqd/008:20:100
237042790,0sleep09950irq/345-484840011:56:530
259052770,0sleep19950irq/345-484840011:14:501
81760,0rcu_preempt3-21ksoftirqd/009:46:490
81760,0rcu_preempt3-21ksoftirqd/009:22:110
172552760,0sleep19950irq/345-484840011:48:111
81750,0rcu_preempt3-21ksoftirqd/012:05:230
81750,0rcu_preempt3-21ksoftirqd/009:40:090
81740,0rcu_preempt19-21ksoftirqd/110:21:081
81730,0rcu_preempt784-21rngd07:40:010
81730,0rcu_preempt3-21ksoftirqd/008:58:140
81720,0rcu_preempt3-21ksoftirqd/010:27:020
142002720,0sleep010050irq/346-484840008:01:340
81710,0rcu_preempt784-21rngd12:13:160
81700,0rcu_preempt3-21ksoftirqd/012:20:040
81700,0rcu_preempt3-21ksoftirqd/007:45:200
81690,0rcu_preempt3-21ksoftirqd/012:38:260
9950680,0irq/345-4848400171rcuc/111:38:581
81680,0rcu_preempt3-21ksoftirqd/009:15:250
81670,0rcu_preempt3-21ksoftirqd/010:55:210
81670,0rcu_preempt3-21ksoftirqd/009:12:270
81660,0rcu_preempt3-21ksoftirqd/011:40:420
81660,0rcu_preempt3-21ksoftirqd/010:43:400
81660,0rcu_preempt3-21ksoftirqd/010:01:140
81660,0rcu_preempt3-21ksoftirqd/009:52:250
81650,0rcu_preempt3-21ksoftirqd/012:28:500
81650,0rcu_preempt12939-21kworker/1:109:20:221
81640,0rcu_preempt3-21ksoftirqd/009:34:030
81640,0rcu_preempt3-21ksoftirqd/009:34:030
81640,0rcu_preempt12653-1kworker/0:4H09:25:220
81630,0rcu_preempt1406-21runrttasks07:24:120
81620,0rcu_preempt3-21ksoftirqd/009:00:380
140732620,0sleep19950irq/345-484840012:27:461
81610,0rcu_preempt3-21ksoftirqd/011:46:200
10050610,0irq/346-484840028134-1kworker/0:0H11:20:090
81590,0rcu_preempt3-21ksoftirqd/009:57:540
81580,0rcu_preempt54-21kswapd011:02:200
81580,0rcu_preempt3-21ksoftirqd/012:17:370
81580,0rcu_preempt19-21ksoftirqd/111:32:451
10050580,0irq/346-484840015601-21ssh12:30:030
10050580,0irq/346-484840015601-21ssh12:30:030
9950570,0irq/345-4848400181ktimersoftd/112:20:161
81570,0rcu_preempt3-21ksoftirqd/011:05:280
81560,0rcu_preempt54-21kswapd010:14:210
81560,0rcu_preempt3-21ksoftirqd/009:38:060
81560,0rcu_preempt19-21ksoftirqd/108:04:491
42912560,0chrt9950irq/345-484840009:57:151
285692560,0chrt9950irq/345-484840010:32:020
218662560,0chrt9950irq/345-484840012:37:401
127202560,0sleep010050irq/346-484840007:58:280
127202560,0sleep010050irq/346-484840007:58:280
81550,0rcu_preempt3-21ksoftirqd/012:00:450
81550,0rcu_preempt3-21ksoftirqd/011:27:410
81550,0rcu_preempt3-21ksoftirqd/010:50:380
179172550,0sleep09950irq/345-484840010:16:510
10050550,0irq/346-484840032445-1kworker/1:2H12:10:281
81540,0rcu_preempt0-21swapper/112:06:451
327572540,0sleep09950irq/345-484840007:19:500
10050540,0irq/346-484840054-21kswapd010:30:231
81530,0rcu_preempt19-21ksoftirqd/109:17:021
10050520,0irq/346-484840022381-1kworker/1:1H08:30:261
10050520,0irq/346-484840020149-1kworker/1:2H11:55:291
81510,0rcu_preempt54-21kswapd012:02:371
81510,0rcu_preempt3-21ksoftirqd/010:07:230
10050510,0irq/346-484840014222-1kworker/1:1H10:12:531
10050510,0irq/346-48484001150-1kworker/1:3H10:40:101
10050510,0irq/346-48484001080-1kworker/0:4H07:25:070
58052500,0chrt9950irq/345-484840010:45:290
10050500,0irq/346-484840022500-21sort11:09:501
10050500,0irq/346-484840016588-1kworker/1:0H09:33:271
10050500,0irq/346-484840016588-1kworker/1:0H09:33:271
81490,0rcu_preempt19-21ksoftirqd/112:31:561
81490,0rcu_preempt19-21ksoftirqd/112:31:561
81490,0rcu_preempt19-21ksoftirqd/107:40:181
81490,0rcu_preempt19-21ksoftirqd/107:23:161
81490,0rcu_preempt12939-21kworker/1:107:55:321
81490,0rcu_preempt12939-21kworker/1:107:55:321
81490,0rcu_preempt0-21swapper/108:44:271
27262490,0sleep19950irq/345-484840011:26:551
10050490,0irq/346-484840023923-1kworker/0:1H11:13:300
81480,0rcu_preempt19-21ksoftirqd/108:10:141
81480,0rcu_preempt19-21ksoftirqd/107:25:331
81480,0rcu_preempt0-21swapper/109:37:281
176982480,0sleep010050irq/346-484840008:14:070
10050480,0irq/346-48484006205-21runrttasks07:38:490
10050480,0irq/346-484840019488-21munin-run10:19:501
10050480,0irq/346-48484000-21swapper/011:19:490
81470,0rcu_preempt784-21rngd07:33:201
81470,0rcu_preempt19-21ksoftirqd/108:18:421
10050470,0irq/346-48484003095-1kworker/1:0H09:10:241
10050470,0irq/346-484840029822-1kworker/1:2H10:39:171
9950460,0irq/345-48484000-21swapper/008:05:150
81460,0rcu_preempt19-21ksoftirqd/110:52:111
81460,0rcu_preempt19-21ksoftirqd/110:25:121
81460,0rcu_preempt19-21ksoftirqd/108:25:321
81460,0rcu_preempt19-21ksoftirqd/108:05:181
296482460,0chrt9950irq/345-484840011:19:551
104842460,0sleep19950irq/345-484840010:05:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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