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2024-03-03 - 18:01

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 Sun Mar 03, 2024 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811300,0rcu_preempt19-21ksoftirqd/111:51:011
811220,0rcu_preempt3-21ksoftirqd/011:01:090
811060,0rcu_preempt19-21ksoftirqd/109:55:281
81950,0rcu_preempt32320-1kworker/1:0H11:43:471
81900,0rcu_preempt19-21ksoftirqd/111:20:271
81870,0rcu_preempt19-21ksoftirqd/111:00:271
81870,0rcu_preempt19-21ksoftirqd/111:00:271
81840,0rcu_preempt19-21ksoftirqd/111:01:091
81800,0rcu_preempt1382-21cyclictest12:01:001
81790,0rcu_preempt19-21ksoftirqd/112:05:521
81760,0rcu_preempt3-21ksoftirqd/011:45:570
81760,0rcu_preempt3-21ksoftirqd/010:15:280
81760,0rcu_preempt19-21ksoftirqd/109:36:051
81760,0rcu_preempt19-21ksoftirqd/109:36:051
81750,0rcu_preempt3-21ksoftirqd/010:46:040
81740,0rcu_preempt19-21ksoftirqd/110:55:281
81740,0rcu_preempt1382-21cyclictest08:06:081
81720,0rcu_preempt19-21ksoftirqd/111:06:041
81700,0rcu_preempt19-21ksoftirqd/109:05:281
81690,0rcu_preempt19-21ksoftirqd/111:25:591
81680,0rcu_preempt3-21ksoftirqd/012:34:550
81680,0rcu_preempt3-21ksoftirqd/012:34:550
81680,0rcu_preempt3-21ksoftirqd/010:32:360
81680,0rcu_preempt3-21ksoftirqd/007:15:270
81680,0rcu_preempt19-21ksoftirqd/111:31:021
81670,0rcu_preempt19-21ksoftirqd/112:31:071
81670,0rcu_preempt19-21ksoftirqd/112:31:071
81670,0rcu_preempt19-21ksoftirqd/110:35:271
81670,0rcu_preempt19-21ksoftirqd/109:25:551
81660,0rcu_preempt20013-21gzip12:06:040
81650,0rcu_preempt3-21ksoftirqd/012:25:540
81650,0rcu_preempt3-21ksoftirqd/009:20:580
81650,0rcu_preempt29205-21kworker/0:007:16:090
81650,0rcu_preempt19-21ksoftirqd/110:10:461
81640,0rcu_preempt3-21ksoftirqd/009:01:060
81640,0rcu_preempt23187-21kworker/0:212:10:400
81640,0rcu_preempt19-21ksoftirqd/107:20:281
81630,0rcu_preempt19-21ksoftirqd/112:15:561
81630,0rcu_preempt19-21ksoftirqd/112:15:561
81620,0rcu_preempt7956-21kworker/0:211:24:200
81620,0rcu_preempt3-21ksoftirqd/011:40:270
81620,0rcu_preempt3-21ksoftirqd/011:40:270
81620,0rcu_preempt3-21ksoftirqd/010:10:110
81620,0rcu_preempt3-21ksoftirqd/009:07:370
81610,0rcu_preempt3-21ksoftirqd/011:40:500
81610,0rcu_preempt3-21ksoftirqd/010:18:020
81610,0rcu_preempt3-21ksoftirqd/009:27:330
81600,0rcu_preempt3-21ksoftirqd/011:10:260
81600,0rcu_preempt3-21ksoftirqd/010:55:470
81600,0rcu_preempt3-21ksoftirqd/010:55:470
81600,0rcu_preempt3-21ksoftirqd/007:30:580
81580,0rcu_preempt3-21ksoftirqd/008:35:450
81580,0rcu_preempt27331-1kworker/1:0H08:25:281
81580,0rcu_preempt19-21ksoftirqd/109:56:031
81580,0rcu_preempt19-21ksoftirqd/107:35:271
81570,0rcu_preempt19-21ksoftirqd/111:46:031
81570,0rcu_preempt19-21ksoftirqd/110:45:551
81570,0rcu_preempt19001-21apt-get10:00:470
10050570,0irq/346-48484000-21swapper/012:16:520
10050570,0irq/346-48484000-21swapper/012:16:520
81560,0rcu_preempt3-21ksoftirqd/008:56:010
81560,0rcu_preempt19-21ksoftirqd/108:51:051
81550,0rcu_preempt19-21ksoftirqd/109:45:571
81540,0rcu_preempt8380-21diskmemload09:11:001
81540,0rcu_preempt3-21ksoftirqd/011:34:570
81540,0rcu_preempt3-21ksoftirqd/011:26:340
81540,0rcu_preempt13586-21munin-node0
81530,0rcu_preempt3-21ksoftirqd/010:25:430
81530,0rcu_preempt3-21ksoftirqd/007:21:050
81530,0rcu_preempt19-21ksoftirqd/111:58:051
81520,0rcu_preempt3-21ksoftirqd/011:14:550
81520,0rcu_preempt3-21ksoftirqd/009:53:050
81520,0rcu_preempt11313-1kworker/0:2H10:40:550
81520,0rcu_preempt11313-1kworker/0:2H10:40:550
81510,0rcu_preempt3-21ksoftirqd/009:48:340
81510,0rcu_preempt29786-21kworker/0:209:39:220
81510,0rcu_preempt29786-21kworker/0:209:39:220
10050510,0irq/346-48484000-21swapper/009:19:410
81500,0rcu_preempt3-21ksoftirqd/011:56:010
81500,0rcu_preempt3-21ksoftirqd/011:15:540
81500,0rcu_preempt3-21ksoftirqd/010:35:460
81500,0rcu_preempt3-21ksoftirqd/010:23:270
81500,0rcu_preempt29786-21kworker/0:209:56:030
81500,0rcu_preempt19-21ksoftirqd/108:40:551
10050500,0irq/346-484840016815-21munin-node0
10050500,0irq/346-48484000-21swapper/009:42:400
81490,0rcu_preempt3-21ksoftirqd/012:21:040
81490,0rcu_preempt22315-21kworker/1:112:27:501
81490,0rcu_preempt19-21ksoftirqd/110:05:471
81490,0rcu_preempt19-21ksoftirqd/107:35:561
81490,0rcu_preempt1002-21thttpd10:53:160
81480,0rcu_preempt3-21ksoftirqd/009:31:070
81480,0rcu_preempt19-21ksoftirqd/110:24:211
10050480,0irq/346-484840014821-21ssh12:00:450
10050480,0irq/346-48484001018-1kworker/0:0H07:05:590
81470,0rcu_preempt3-21ksoftirqd/008:21:020
81470,0rcu_preempt3-21ksoftirqd/007:00:430
81470,0rcu_preempt30759-21kworker/1:010:44:511
81470,0rcu_preempt30759-21kworker/1:010:44:511
81470,0rcu_preempt19-21ksoftirqd/109:15:561
81460,0rcu_preempt19-21ksoftirqd/112:13:171
10050460,0irq/346-48484009733-21ssh11:54:460
10050460,0irq/346-484840015743-21ssh09:14:490
81450,0rcu_preempt3-21ksoftirqd/008:01:020
138399452,0cyclictest0-21swapper/007:55:280
81440,0rcu_preempt19-21ksoftirqd/109:40:441
10050440,0irq/346-48484003-21ksoftirqd/007:27:060
81430,0rcu_preempt3-21ksoftirqd/008:50:280
81430,0rcu_preempt19-21ksoftirqd/110:35:471
81430,0rcu_preempt19216-21ssh10:00:511
10050430,0irq/346-48484004668-21ping07:36:270
10050430,0irq/346-48484000-21swapper/007:45:470
10050430,0irq/346-48484000-21swapper/007:45:470
81420,0rcu_preempt19-21ksoftirqd/111:24:231
81420,0rcu_preempt19-21ksoftirqd/107:04:411
10050420,0irq/346-484840028730-21ls08:26:060
81410,0rcu_preempt19-21ksoftirqd/111:36:021
81410,0rcu_preempt19-21ksoftirqd/111:36:021
81410,0rcu_preempt19-21ksoftirqd/111:11:031
81410,0rcu_preempt19-21ksoftirqd/109:33:061
81410,0rcu_preempt19-21ksoftirqd/109:05:271
81410,0rcu_preempt19-21ksoftirqd/107:20:481
81400,0rcu_preempt19-21ksoftirqd/108:01:061
1599400,0migration/024509-21taskset08:15:340
1599400,0migration/022534-21taskset08:08:420
81390,0rcu_preempt19-21ksoftirqd/108:46:011
10050390,0irq/346-484840054-21kswapd008:47:190
10050390,0irq/346-48484000-21swapper/008:30:590
81380,0rcu_preempt19-21ksoftirqd/108:36:021
81380,0rcu_preempt1034-21ps08:41:000
138399382,0cyclictest17568-21ping08:10:550
9950370,0irq/345-484840031305-21interrupts10:15:561
81370,0rcu_preempt19-21ksoftirqd/112:21:211
81370,0rcu_preempt19-21ksoftirqd/109:21:491
81370,0rcu_preempt19-21ksoftirqd/107:25:511
81360,0rcu_preempt19-21ksoftirqd/110:25:321
81360,0rcu_preempt19-21ksoftirqd/107:40:481
81360,0rcu_preempt19-21ksoftirqd/107:15:281
1699350,0migration/15464-21sh08:55:521
1699350,0migration/129626-21sh08:30:481
257932340,0chrt25693-1kworker/1:1H08:18:191
1699340,0migration/117969-21munin-node1
10050330,0irq/346-484840017793-21munin-run07:55:271
81320,0rcu_preempt19-21ksoftirqd/107:06:301
81300,0rcu_preempt19-21ksoftirqd/108:25:591
9950290,0irq/345-48484000-21swapper/108:11:071
9950290,0irq/345-48484000-21swapper/107:45:581
9950290,0irq/345-48484000-21swapper/107:45:581
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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