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2024-11-25 - 09:58

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 376 highest latencies:
System rackaslot5s.osadl.org (updated Mon Nov 25, 2024 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811340,0rcu_preempt3-21ksoftirqd/023:19:580
811340,0rcu_preempt3-21ksoftirqd/021:42:410
811330,0rcu_preempt3-21ksoftirqd/023:09:130
811310,0rcu_preempt3-21ksoftirqd/021:50:350
811310,0rcu_preempt3-21ksoftirqd/021:26:180
811300,0rcu_preempt3-21ksoftirqd/022:05:350
811300,0rcu_preempt3-21ksoftirqd/021:13:230
811290,0rcu_preempt3-21ksoftirqd/021:21:520
811280,0rcu_preempt3-21ksoftirqd/023:31:020
811280,0rcu_preempt3-21ksoftirqd/022:51:360
811280,0rcu_preempt3-21ksoftirqd/021:16:570
811270,0rcu_preempt3-21ksoftirqd/023:06:230
811270,0rcu_preempt3-21ksoftirqd/023:06:230
811230,0rcu_preempt3-21ksoftirqd/023:48:300
811160,0rcu_preempt3-21ksoftirqd/022:42:040
811090,0rcu_preempt3-21ksoftirqd/021:58:410
811080,0rcu_preempt17588-21kworker/0:123:39:490
811040,0rcu_preempt3-21ksoftirqd/022:47:130
811030,0rcu_preempt3-21ksoftirqd/022:58:520
811030,0rcu_preempt3-21ksoftirqd/022:23:180
811010,0rcu_preempt3-21ksoftirqd/023:36:300
811010,0rcu_preempt3-21ksoftirqd/000:18:080
811000,0rcu_preempt3-21ksoftirqd/023:14:390
811000,0rcu_preempt3-21ksoftirqd/022:38:160
811000,0rcu_preempt3-21ksoftirqd/022:12:420
81990,0rcu_preempt3-21ksoftirqd/000:28:200
81980,0rcu_preempt3-21ksoftirqd/023:27:100
81980,0rcu_preempt3-21ksoftirqd/022:31:120
81980,0rcu_preempt3-21ksoftirqd/022:14:360
81980,0rcu_preempt3-21ksoftirqd/021:30:030
81980,0rcu_preempt3-21ksoftirqd/000:20:200
81980,0rcu_preempt3-21ksoftirqd/000:13:240
81970,0rcu_preempt30798-21kworker/0:121:53:450
81970,0rcu_preempt30798-21kworker/0:121:53:450
81820,0rcu_preempt54-21kswapd020:08:400
81810,0rcu_preempt3-21ksoftirqd/020:03:390
81800,0rcu_preempt3-21ksoftirqd/020:13:490
81800,0rcu_preempt3-21ksoftirqd/000:29:230
81790,0rcu_preempt3-21ksoftirqd/023:59:290
81790,0rcu_preempt3-21ksoftirqd/020:38:140
81790,0rcu_preempt3-21ksoftirqd/020:20:490
81790,0rcu_preempt3-21ksoftirqd/000:03:580
81780,0rcu_preempt3-21ksoftirqd/023:56:430
81780,0rcu_preempt3-21ksoftirqd/020:28:520
81760,0rcu_preempt3-21ksoftirqd/021:44:450
81760,0rcu_preempt3-21ksoftirqd/020:43:430
81760,0rcu_preempt3-21ksoftirqd/020:00:200
81760,0rcu_preempt3-21ksoftirqd/019:55:380
81760,0rcu_preempt3-21ksoftirqd/019:13:390
81760,0rcu_preempt3-21ksoftirqd/000:37:510
81750,0rcu_preempt3-21ksoftirqd/022:55:050
81750,0rcu_preempt3-21ksoftirqd/021:33:370
81730,0rcu_preempt3-21ksoftirqd/023:44:030
81730,0rcu_preempt3-21ksoftirqd/020:38:420
81730,0rcu_preempt16471-21kworker/0:219:48:580
81720,0rcu_preempt54-21kswapd020:23:510
10050720,0irq/346-4848400171rcuc/122:20:151
9950710,0irq/345-4848400181ktimersoftd/100:18:521
81710,0rcu_preempt3-21ksoftirqd/020:48:540
81710,0rcu_preempt25865-1kworker/0:0H19:24:010
9950700,0irq/345-4848400171rcuc/121:14:151
81690,0rcu_preempt3-21ksoftirqd/022:24:350
81690,0rcu_preempt3-21ksoftirqd/020:58:490
81690,0rcu_preempt3-21ksoftirqd/020:53:540
81690,0rcu_preempt3-21ksoftirqd/019:48:200
81680,0rcu_preempt3-21ksoftirqd/021:05:120
81680,0rcu_preempt3-21ksoftirqd/021:05:120
81660,0rcu_preempt3-21ksoftirqd/019:39:040
81660,0rcu_preempt3-21ksoftirqd/019:11:530
81630,0rcu_preempt3-21ksoftirqd/019:30:330
10050620,0irq/346-4848400181ktimersoftd/122:01:211
10050620,0irq/346-484840014998-1kworker/1:0H22:57:021
81600,0rcu_preempt16471-21kworker/0:219:18:500
10050590,0irq/346-484840054-21kswapd023:19:521
10050590,0irq/346-4848400181ktimersoftd/121:18:541
10050590,0irq/346-4848400171rcuc/100:07:401
81580,0rcu_preempt16471-21kworker/0:219:33:470
10050570,0irq/346-484840054-21kswapd000:10:411
10050570,0irq/346-4848400181ktimersoftd/100:02:151
9950550,0irq/345-4848400181ktimersoftd/123:40:031
10050550,0irq/346-4848400181ktimersoftd/123:51:511
10050550,0irq/346-4848400181ktimersoftd/123:34:441
10050550,0irq/346-4848400181ktimersoftd/122:26:291
10050550,0irq/346-4848400171rcuc/121:28:071
10050550,0irq/346-4848400171rcuc/100:33:521
9950540,0irq/345-4848400171rcuc/122:38:581
10050540,0irq/346-48484008290-1kworker/1:0H00:15:001
10050540,0irq/346-48484006195-1kworker/1:0H23:43:431
10050540,0irq/346-4848400171rcuc/123:29:531
10050540,0irq/346-4848400171rcuc/123:27:391
81530,0rcu_preempt9950irq/345-484840021:43:431
10050530,0irq/346-484840031622-1kworker/1:1H22:38:131
10050520,0irq/346-4848400171rcuc/122:51:171
10050520,0irq/346-48484000-21swapper/123:53:491
2190599517,0cyclictest27791-1kworker/1:2H22:32:431
2190599517,0cyclictest14900-21ntpq20:23:541
2190599513,0cyclictest28754-21apt-get23:13:371
10050510,0irq/346-48484007074-1kworker/1:4H23:09:081
10050510,0irq/346-484840054-21kswapd021:53:581
10050510,0irq/346-484840054-21kswapd021:53:581
10050510,0irq/346-484840029671-1kworker/1:1H21:50:451
10050510,0irq/346-4848400181ktimersoftd/122:58:531
10050510,0irq/346-4848400181ktimersoftd/120:58:381
64902500,0sleep19950irq/345-484840022:44:471
10050500,0irq/346-484840022084-21ssh00:28:581
10050500,0irq/346-484840018770-21ssh00:23:571
10050500,0irq/346-484840017055-1kworker/1:0H20:33:501
2190599491,0cyclictest10469-21apt-get22:08:421
10050490,0irq/346-48484008784-1kworker/1:2H22:07:331
10050490,0irq/346-484840054-21kswapd021:41:501
10050490,0irq/346-484840054-21kswapd021:12:011
10050490,0irq/346-4848400181ktimersoftd/121:37:291
2190599481,0cyclictest14237-21apt-get22:13:381
21905994712,0cyclictest28253-21munin-node1
21905994712,0cyclictest28253-21munin-node1
10050470,0irq/346-484840014222-1kworker/1:4H21:31:391
2190599467,0cyclictest10933-21apt-get20:13:391
2190599461,0cyclictest6815-21munin-node1
10050460,0irq/346-484840020240-1kworker/0:0H19:03:480
2190599457,0cyclictest8681-1kworker/1:2H20:08:521
2190599457,0cyclictest752-21rngd19:18:281
2190599454,0cyclictest23232-1kworker/1:1H19:13:561
2190599452,0cyclictest1371-21runrttasks19:53:571
2190599452,0cyclictest0-21swapper/120:43:371
2190599448,0cyclictest10050irq/346-484840023:03:371
2190599448,0cyclictest10050irq/346-484840023:03:371
2190599441,0cyclictest54-21kswapd020:28:451
2190599437,0cyclictest21903-21cyclictest20:55:451
2190599436,0cyclictest13972-21seq20:22:281
2190599435,0cyclictest1238-21snmpd19:48:521
2190599432,0cyclictest22049-21apt-get19:08:381
2190599431,0cyclictest7667-21munin-node1
2190599428,0cyclictest20211-21runrttasks20:39:061
2190599425,0cyclictest1324-21entropy19:43:471
2190599422,0cyclictest29790-1kworker/1:3H19:33:491
2190599422,0cyclictest25179-21ping19:41:061
2190599422,0cyclictest25179-21ping19:23:461
2190599422,0cyclictest22416-21apt-get20:48:371
2190599421,0cyclictest28850-21grep19:28:471
81390,0rcu_preempt19-21ksoftirqd/119:03:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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