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2024-04-19 - 03:21

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 the highest latencies:
System rackaslot5s.osadl.org (updated Thu Apr 18, 2024 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811420,0rcu_preempt19-21ksoftirqd/112:35:151
811370,0rcu_preempt19-21ksoftirqd/110:48:351
811300,0rcu_preempt19-21ksoftirqd/111:48:411
811300,0rcu_preempt19-21ksoftirqd/111:48:411
811290,0rcu_preempt22040-21kworker/1:212:01:021
811280,0rcu_preempt17152-1kworker/1:0H12:19:301
811260,0rcu_preempt19-21ksoftirqd/109:54:551
811200,0rcu_preempt19-21ksoftirqd/110:26:111
811160,0rcu_preempt19-21ksoftirqd/111:39:261
811150,0rcu_preempt19-21ksoftirqd/111:56:361
811150,0rcu_preempt19-21ksoftirqd/110:59:051
811110,0rcu_preempt54-21kswapd010:31:431
811110,0rcu_preempt19-21ksoftirqd/111:01:431
811080,0rcu_preempt19-21ksoftirqd/111:32:131
811070,0rcu_preempt19-21ksoftirqd/111:41:501
811060,0rcu_preempt19-21ksoftirqd/112:21:291
811060,0rcu_preempt19-21ksoftirqd/107:29:201
811050,0rcu_preempt19-21ksoftirqd/109:21:181
811020,0rcu_preempt19-21ksoftirqd/111:28:541
811010,0rcu_preempt19-21ksoftirqd/109:49:091
81990,0rcu_preempt19-21ksoftirqd/109:27:191
81980,0rcu_preempt54-21kswapd011:24:231
81980,0rcu_preempt54-21kswapd011:24:231
81980,0rcu_preempt19-21ksoftirqd/112:24:461
81980,0rcu_preempt19-21ksoftirqd/112:05:401
81980,0rcu_preempt19-21ksoftirqd/111:11:051
81960,0rcu_preempt19-21ksoftirqd/110:35:221
81960,0rcu_preempt19-21ksoftirqd/110:11:121
81960,0rcu_preempt19-21ksoftirqd/110:11:121
81950,0rcu_preempt54-21kswapd011:15:461
81950,0rcu_preempt19-21ksoftirqd/112:30:161
81950,0rcu_preempt19-21ksoftirqd/108:45:091
81940,0rcu_preempt54-21kswapd011:53:571
81930,0rcu_preempt19-21ksoftirqd/109:12:371
81920,0rcu_preempt19-21ksoftirqd/110:44:141
81910,0rcu_preempt19-21ksoftirqd/110:51:341
81900,0rcu_preempt19-21ksoftirqd/110:01:541
81900,0rcu_preempt19-21ksoftirqd/107:19:321
81890,0rcu_preempt54-21kswapd010:17:531
81890,0rcu_preempt19-21ksoftirqd/112:14:201
81890,0rcu_preempt19-21ksoftirqd/109:52:471
81890,0rcu_preempt19-21ksoftirqd/109:41:231
81890,0rcu_preempt19-21ksoftirqd/109:36:251
81890,0rcu_preempt19-21ksoftirqd/109:36:251
81890,0rcu_preempt19-21ksoftirqd/109:18:431
81880,0rcu_preempt19-21ksoftirqd/109:32:521
81870,0rcu_preempt19-21ksoftirqd/107:33:101
81860,0rcu_preempt19-21ksoftirqd/110:07:421
81860,0rcu_preempt19-21ksoftirqd/107:39:331
81850,0rcu_preempt19-21ksoftirqd/107:39:491
81850,0rcu_preempt19-21ksoftirqd/107:39:491
81820,0rcu_preempt23948-21diskstats08:24:511
81820,0rcu_preempt19-21ksoftirqd/111:07:171
81820,0rcu_preempt19-21ksoftirqd/108:31:441
81810,0rcu_preempt19-21ksoftirqd/110:21:591
81810,0rcu_preempt19-21ksoftirqd/107:59:531
81810,0rcu_preempt19-21ksoftirqd/107:44:431
81790,0rcu_preempt19-21ksoftirqd/108:09:461
81790,0rcu_preempt19-21ksoftirqd/108:08:191
81790,0rcu_preempt19-21ksoftirqd/107:56:401
81770,0rcu_preempt19-21ksoftirqd/107:14:411
81760,0rcu_preempt19-21ksoftirqd/108:19:131
81730,0rcu_preempt19-21ksoftirqd/108:39:311
81720,0rcu_preempt0-21swapper/108:20:151
81710,0rcu_preempt0-21swapper/108:59:511
81680,0rcu_preempt19-21ksoftirqd/108:54:401
81680,0rcu_preempt19-21ksoftirqd/107:53:591
81680,0rcu_preempt0-21swapper/108:39:541
81670,0rcu_preempt19-21ksoftirqd/109:04:391
81670,0rcu_preempt19-21ksoftirqd/107:11:101
81630,0rcu_preempt19-21ksoftirqd/108:50:371
31371996313,0cyclictest24262-21wc09:34:580
31371996313,0cyclictest24262-21wc09:34:580
3137199631,0cyclictest23352-21cat12:19:310
3137199622,0cyclictest27669-21munin-node0
81610,0rcu_preempt54-21kswapd010:44:550
81610,0rcu_preempt3-21ksoftirqd/009:49:420
3137199614,0cyclictest0-21swapper/010:20:090
3137199593,0cyclictest0-21swapper/009:25:530
3137199592,0cyclictest14080-21ntp_offset10:04:540
3137199583,0cyclictest0-21swapper/011:26:410
3137199583,0cyclictest0-21swapper/009:14:530
3137199583,0cyclictest0-21swapper/008:12:390
3137199582,0cyclictest0-21swapper/012:09:580
10050580,0irq/346-484840054-21kswapd008:39:310
3137199576,0cyclictest1309-21lldpd11:19:380
3137199576,0cyclictest1309-21lldpd11:19:380
3137199574,0cyclictest2249-21ping07:39:360
3137199574,0cyclictest2249-21ping07:39:360
3137199573,0cyclictest0-21swapper/008:20:010
3137199572,0cyclictest0-21swapper/009:33:500
3137199569,0cyclictest31498-21ssh10:28:030
3137199562,0cyclictest2249-21ping07:34:440
3137199562,0cyclictest0-21swapper/011:12:110
3137199552,0cyclictest0-21swapper/011:43:040
31371995515,0cyclictest0-21swapper/009:45:010
3137199551,0cyclictest7269-1kworker/0:2H09:59:320
3137199551,0cyclictest2249-21ping07:29:390
3137199543,0cyclictest0-21swapper/010:43:130
3137199542,0cyclictest2249-21ping07:44:410
3137199542,0cyclictest0-21swapper/012:27:550
3137199541,0cyclictest3466-21diskstats11:54:470
3137199541,0cyclictest10050irq/346-484840007:19:310
3137199536,0cyclictest3093-21munin-node0
81520,0rcu_preempt19-21ksoftirqd/107:09:311
10050520,0irq/346-484840011748-1kworker/0:0H11:03:280
3137199512,0cyclictest1309-21lldpd09:21:080
3137199512,0cyclictest0-21swapper/012:05:360
10050510,0irq/346-484840020507-1kworker/0:2H11:37:320
10050480,0irq/346-484840054-21kswapd012:32:580
81470,0rcu_preempt3-21ksoftirqd/007:04:500
81470,0rcu_preempt27908-21ps11:44:590
81470,0rcu_preempt27908-21ps11:44:590
10050450,0irq/346-48484000-21swapper/009:13:050
81440,0rcu_preempt3-21ksoftirqd/009:59:430
10050440,0irq/346-484840054-21kswapd012:34:570
10050440,0irq/346-484840054-21kswapd010:14:410
10050440,0irq/346-48484000-21swapper/011:49:550
10050440,0irq/346-48484000-21swapper/010:49:330
10050440,0irq/346-48484000-21swapper/010:33:340
10050430,0irq/346-484840054-21kswapd010:09:420
10050430,0irq/346-484840054-21kswapd010:09:420
10050430,0irq/346-48484000-21swapper/011:16:250
10050420,0irq/346-484840054-21kswapd011:30:010
10050420,0irq/346-48484000-21swapper/011:59:560
10050420,0irq/346-48484000-21swapper/010:58:480
10050420,0irq/346-48484000-21swapper/010:34:550
9950410,0irq/345-48484000-21swapper/009:40:070
3137199416,0cyclictest0-21swapper/008:16:440
10050410,0irq/346-484840054-21kswapd009:00:500
10050410,0irq/346-48484000-21swapper/012:22:530
3137199403,0cyclictest0-21swapper/008:04:310
81380,0rcu_preempt3-21ksoftirqd/007:54:310
3137199383,0cyclictest0-21swapper/008:24:320
31371993712,0cyclictest0-21swapper/007:57:520
10050370,0irq/346-48484000-21swapper/008:54:440
3137199369,0cyclictest0-21swapper/008:07:380
3137199348,0cyclictest0-21swapper/008:29:410
9950330,0irq/345-48484000-21swapper/008:39:580
3137199322,0cyclictest4297-21fschecks_time07:24:510
81290,0rcu_preempt3-21ksoftirqd/009:09:300
3137199292,0cyclictest1420-21runrttasks08:47:030
81260,0rcu_preempt54-21kswapd008:49:560
3137199262,0cyclictest32158-21ntp_kernel_err07:09:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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