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2025-04-03 - 11:13

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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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
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rackaslot5s.osadl.org (updated Thu Apr 03, 2025 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811270,0rcu_preempt19-21ksoftirqd/122:48:241
811170,0rcu_preempt0-21swapper/022:22:200
81790,0rcu_preempt12409-21kworker/0:220:13:330
81790,0rcu_preempt12409-21kworker/0:220:13:330
81770,0rcu_preempt32293-21kworker/0:021:57:560
81770,0rcu_preempt3-21ksoftirqd/021:02:320
81770,0rcu_preempt3-21ksoftirqd/000:35:470
81760,0rcu_preempt3-21ksoftirqd/022:51:360
81760,0rcu_preempt3-21ksoftirqd/021:29:050
81760,0rcu_preempt3-21ksoftirqd/020:12:220
81750,0rcu_preempt3-21ksoftirqd/020:20:480
81740,0rcu_preempt54-21kswapd022:01:350
81740,0rcu_preempt3-21ksoftirqd/023:58:310
81740,0rcu_preempt3-21ksoftirqd/023:07:020
81740,0rcu_preempt3-21ksoftirqd/023:02:400
81740,0rcu_preempt3-21ksoftirqd/022:16:470
81740,0rcu_preempt3-21ksoftirqd/021:38:420
81740,0rcu_preempt3-21ksoftirqd/020:46:300
81740,0rcu_preempt3-21ksoftirqd/020:06:240
81740,0rcu_preempt3-21ksoftirqd/000:17:110
81730,0rcu_preempt753-21rngd20:53:260
81730,0rcu_preempt54-21kswapd021:12:400
81730,0rcu_preempt3-21ksoftirqd/023:53:480
81730,0rcu_preempt3-21ksoftirqd/023:18:310
81730,0rcu_preempt3-21ksoftirqd/022:41:250
81730,0rcu_preempt3-21ksoftirqd/022:35:580
81730,0rcu_preempt3-21ksoftirqd/021:47:070
81730,0rcu_preempt3-21ksoftirqd/021:26:090
81730,0rcu_preempt3-21ksoftirqd/000:18:420
81730,0rcu_preempt10200-21ssh21:19:130
81720,0rcu_preempt3-21ksoftirqd/021:35:480
81720,0rcu_preempt3-21ksoftirqd/020:33:370
81720,0rcu_preempt3-21ksoftirqd/000:31:570
81720,0rcu_preempt3-21ksoftirqd/000:31:570
81710,0rcu_preempt3-21ksoftirqd/023:32:230
81710,0rcu_preempt3-21ksoftirqd/022:54:020
81710,0rcu_preempt3-21ksoftirqd/022:45:080
81710,0rcu_preempt3-21ksoftirqd/020:48:500
81710,0rcu_preempt3-21ksoftirqd/000:26:470
81700,0rcu_preempt3-21ksoftirqd/023:39:050
81700,0rcu_preempt3-21ksoftirqd/023:39:050
81700,0rcu_preempt3-21ksoftirqd/023:26:190
81700,0rcu_preempt3-21ksoftirqd/022:29:180
81700,0rcu_preempt3-21ksoftirqd/022:08:560
81700,0rcu_preempt3-21ksoftirqd/021:15:470
81700,0rcu_preempt3-21ksoftirqd/020:41:330
81700,0rcu_preempt3-21ksoftirqd/020:26:330
81700,0rcu_preempt3-21ksoftirqd/019:54:120
81690,0rcu_preempt3-21ksoftirqd/023:50:420
81690,0rcu_preempt3-21ksoftirqd/023:13:120
81690,0rcu_preempt3-21ksoftirqd/022:23:400
81690,0rcu_preempt32188-21diskmemload00:05:040
81690,0rcu_preempt32188-21diskmemload00:05:040
81690,0rcu_preempt19-21ksoftirqd/122:39:021
81680,0rcu_preempt3-21ksoftirqd/023:33:290
81680,0rcu_preempt3-21ksoftirqd/022:05:430
81680,0rcu_preempt25786-21df_inode22:18:341
81670,0rcu_preempt3-21ksoftirqd/021:48:440
81660,0rcu_preempt3-21ksoftirqd/019:40:390
81640,0rcu_preempt3-21ksoftirqd/000:10:300
81630,0rcu_preempt3-21ksoftirqd/019:58:310
10050620,0irq/346-4848400181ktimersoftd/100:27:141
81610,0rcu_preempt19-21ksoftirqd/123:48:361
81570,0rcu_preempt3-21ksoftirqd/019:23:470
81560,0rcu_preempt3-21ksoftirqd/019:43:400
81560,0rcu_preempt19-21ksoftirqd/120:03:461
81550,0rcu_preempt19-21ksoftirqd/122:31:331
81550,0rcu_preempt19-21ksoftirqd/122:17:441
81540,0rcu_preempt19-21ksoftirqd/121:13:401
81530,0rcu_preempt19-21ksoftirqd/123:12:561
10050530,0irq/346-484840054-21kswapd023:18:321
10050510,0irq/346-4848400181ktimersoftd/121:35:551
9950470,0irq/345-484840032675-1kworker/1:1H00:32:051
9950470,0irq/345-484840032675-1kworker/1:1H00:32:051
81470,0rcu_preempt9698-21kworker/0:119:03:390
81470,0rcu_preempt54-21kswapd023:26:441
81470,0rcu_preempt19-21ksoftirqd/120:13:411
81470,0rcu_preempt19-21ksoftirqd/120:13:411
9950460,0irq/345-484840029495-21wc19:18:490
81460,0rcu_preempt8975-21ping20:09:301
81460,0rcu_preempt4630-21runrttasks00:38:001
10050460,0irq/346-48484008193-1kworker/1:1H19:19:561
10050460,0irq/346-48484005996-1kworker/0:0H19:48:290
9950450,0irq/345-48484005074-21munin-node1
81450,0rcu_preempt19-21ksoftirqd/120:18:391
10050450,0irq/346-48484006283-1kworker/1:0H23:58:131
10050450,0irq/346-484840017884-1kworker/1:0H00:10:261
9950440,0irq/345-484840054-21kswapd023:14:580
9950440,0irq/345-48484002666-1kworker/1:1H21:55:121
81440,0rcu_preempt19-21ksoftirqd/123:28:371
81440,0rcu_preempt19-21ksoftirqd/122:08:271
81440,0rcu_preempt19-21ksoftirqd/120:59:401
81440,0rcu_preempt19-21ksoftirqd/119:58:321
81440,0rcu_preempt19-21ksoftirqd/119:56:231
10050440,0irq/346-484840029618-21ssh23:43:430
9950430,0irq/345-48484000-21swapper/019:28:370
81430,0rcu_preempt9398-21memory21:18:391
81430,0rcu_preempt19-21ksoftirqd/122:58:451
81430,0rcu_preempt19-21ksoftirqd/120:23:281
81430,0rcu_preempt19-21ksoftirqd/119:28:461
81430,0rcu_preempt19-21ksoftirqd/119:18:161
81420,0rcu_preempt3-21ksoftirqd/020:28:320
81420,0rcu_preempt19277-1kworker/1:0H22:53:241
81420,0rcu_preempt19-21ksoftirqd/119:43:161
81420,0rcu_preempt19-21ksoftirqd/119:38:491
81420,0rcu_preempt19-21ksoftirqd/100:13:351
10050420,0irq/346-484840030464-1kworker/1:1H22:28:111
10050420,0irq/346-484840011825-21ssh00:01:571
81410,0rcu_preempt3-21ksoftirqd/019:13:340
81410,0rcu_preempt21697-21sed23:33:411
81410,0rcu_preempt19-21ksoftirqd/123:38:361
81410,0rcu_preempt19-21ksoftirqd/123:38:361
81410,0rcu_preempt19-21ksoftirqd/122:43:291
81410,0rcu_preempt19-21ksoftirqd/121:48:211
81410,0rcu_preempt19-21ksoftirqd/121:39:111
81410,0rcu_preempt19-21ksoftirqd/120:46:561
81410,0rcu_preempt19-21ksoftirqd/120:38:291
81410,0rcu_preempt19-21ksoftirqd/119:23:371
81410,0rcu_preempt19-21ksoftirqd/119:03:421
81410,0rcu_preempt19-21ksoftirqd/100:05:481
81410,0rcu_preempt19-21ksoftirqd/100:05:481
10050410,0irq/346-484840031804-21ssh23:06:491
10050410,0irq/346-4848400252882sleep100:19:111
10050410,0irq/346-48484001766-21ssh21:09:311
81400,0rcu_preempt3-21ksoftirqd/021:03:290
81400,0rcu_preempt19-21ksoftirqd/123:16:131
81400,0rcu_preempt19-21ksoftirqd/121:58:461
81400,0rcu_preempt19-21ksoftirqd/121:45:281
81400,0rcu_preempt19-21ksoftirqd/120:35:391
81400,0rcu_preempt19-21ksoftirqd/120:28:281
81400,0rcu_preempt19-21ksoftirqd/119:35:121
10050400,0irq/346-484840029639-21ssh23:43:451
10050400,0irq/346-484840015828-21ssh22:07:031
9950390,0irq/345-484840010862-1kworker/1:1H21:24:111
81390,0rcu_preempt19-21ksoftirqd/121:28:301
81390,0rcu_preempt19-21ksoftirqd/121:08:061
81380,0rcu_preempt3-21ksoftirqd/019:08:300
81380,0rcu_preempt19-21ksoftirqd/120:53:251
81380,0rcu_preempt19-21ksoftirqd/120:53:001
81380,0rcu_preempt19-21ksoftirqd/119:48:331
2532399384,0cyclictest28598-21ping19:33:510
81370,0rcu_preempt26236-21ps19:08:411
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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