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2025-09-04 - 03:52

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 here to display the system's profile data or here to proceed to next system.
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 Sep 04, 2025 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811020,0rcu_preempt30811-1kworker/1:1H21:15:201
81990,0rcu_preempt0-21swapper/121:46:041
81980,0rcu_preempt19-21ksoftirqd/119:31:511
81970,0rcu_preempt19-21ksoftirqd/121:33:331
81970,0rcu_preempt19-21ksoftirqd/121:22:051
81960,0rcu_preempt19-21ksoftirqd/121:25:561
81950,0rcu_preempt19-21ksoftirqd/121:52:541
81930,0rcu_preempt19-21ksoftirqd/120:03:241
81930,0rcu_preempt19-21ksoftirqd/120:03:241
81920,0rcu_preempt19-21ksoftirqd/122:14:441
81920,0rcu_preempt19-21ksoftirqd/121:39:261
81920,0rcu_preempt19-21ksoftirqd/100:05:271
81910,0rcu_preempt19-21ksoftirqd/122:52:051
81910,0rcu_preempt19-21ksoftirqd/121:56:071
81910,0rcu_preempt19-21ksoftirqd/121:07:371
81910,0rcu_preempt19-21ksoftirqd/119:21:251
81900,0rcu_preempt19-21ksoftirqd/123:45:571
81900,0rcu_preempt19-21ksoftirqd/123:29:231
81900,0rcu_preempt19-21ksoftirqd/122:41:101
81900,0rcu_preempt14919-21kworker/1:119:36:081
81880,0rcu_preempt19-21ksoftirqd/123:05:511
81870,0rcu_preempt19-21ksoftirqd/123:59:481
81860,0rcu_preempt19-21ksoftirqd/122:45:531
81850,0rcu_preempt19-21ksoftirqd/100:23:091
81840,0rcu_preempt2034-21ping20:24:031
81840,0rcu_preempt19-21ksoftirqd/123:31:131
81840,0rcu_preempt19-21ksoftirqd/120:16:061
81830,0rcu_preempt19-21ksoftirqd/120:14:491
81830,0rcu_preempt19-21ksoftirqd/120:06:531
81820,0rcu_preempt19-21ksoftirqd/122:21:121
81810,0rcu_preempt54-21kswapd022:36:041
81800,0rcu_preempt19-21ksoftirqd/123:51:061
81800,0rcu_preempt19-21ksoftirqd/100:30:081
81780,0rcu_preempt19-21ksoftirqd/123:11:461
81780,0rcu_preempt19-21ksoftirqd/122:03:441
81780,0rcu_preempt19-21ksoftirqd/120:27:031
81770,0rcu_preempt19-21ksoftirqd/122:57:551
81770,0rcu_preempt19-21ksoftirqd/122:31:181
81770,0rcu_preempt19-21ksoftirqd/122:26:121
81770,0rcu_preempt19-21ksoftirqd/122:10:431
81770,0rcu_preempt19-21ksoftirqd/121:20:451
81770,0rcu_preempt19-21ksoftirqd/119:46:061
81770,0rcu_preempt19-21ksoftirqd/119:10:531
81760,0rcu_preempt19-21ksoftirqd/123:25:091
81760,0rcu_preempt19-21ksoftirqd/119:26:261
81750,0rcu_preempt19-21ksoftirqd/122:18:151
81750,0rcu_preempt19-21ksoftirqd/119:56:221
81740,0rcu_preempt19-21ksoftirqd/123:45:381
81740,0rcu_preempt19-21ksoftirqd/121:01:141
81740,0rcu_preempt19-21ksoftirqd/120:44:271
81740,0rcu_preempt19-21ksoftirqd/100:18:121
81740,0rcu_preempt19-21ksoftirqd/100:18:121
81730,0rcu_preempt19-21ksoftirqd/119:54:081
81720,0rcu_preempt19-21ksoftirqd/100:11:331
81710,0rcu_preempt19-21ksoftirqd/123:36:201
81700,0rcu_preempt19-21ksoftirqd/121:41:171
81690,0rcu_preempt19-21ksoftirqd/123:09:311
81680,0rcu_preempt19-21ksoftirqd/100:09:371
81670,0rcu_preempt14919-21kworker/1:119:41:141
81650,0rcu_preempt3-21ksoftirqd/021:35:530
10050650,0irq/346-484840054-21kswapd023:17:060
81630,0rcu_preempt3-21ksoftirqd/022:25:140
81620,0rcu_preempt3-21ksoftirqd/000:11:140
10050620,0irq/346-484840030370-1kworker/0:1H23:51:470
81600,0rcu_preempt3-21ksoftirqd/023:41:560
81600,0rcu_preempt19-21ksoftirqd/100:34:501
81590,0rcu_preempt3-21ksoftirqd/021:36:340
81580,0rcu_preempt3-21ksoftirqd/022:17:420
81580,0rcu_preempt3-21ksoftirqd/022:07:120
81580,0rcu_preempt3-21ksoftirqd/021:59:570
81570,0rcu_preempt3-21ksoftirqd/023:01:240
10050570,0irq/346-48484009708-1kworker/0:3H23:26:370
10050570,0irq/346-48484008366-1kworker/0:3H22:15:070
10050560,0irq/346-484840011546-1kworker/0:0H21:28:470
81530,0rcu_preempt19-21ksoftirqd/123:18:051
10050530,0irq/346-484840054-21kswapd000:06:140
10050520,0irq/346-4848400753-21rngd21:45:440
81510,0rcu_preempt3-21ksoftirqd/019:01:080
10050510,0irq/346-484840054-21kswapd023:36:230
10050510,0irq/346-484840054-21kswapd021:17:000
81500,0rcu_preempt3-21ksoftirqd/019:56:590
10050500,0irq/346-484840054-21kswapd023:49:280
10050500,0irq/346-484840029761-1kworker/0:3H23:11:150
10050500,0irq/346-48484000-21swapper/023:07:170
10050500,0irq/346-48484000-21swapper/022:40:540
10050490,0irq/346-48484007035-21ssh22:40:450
10050490,0irq/346-484840054-21kswapd023:59:560
10050490,0irq/346-484840054-21kswapd023:32:340
10050490,0irq/346-484840054-21kswapd022:34:190
10050490,0irq/346-484840054-21kswapd021:53:070
10050490,0irq/346-484840054-21kswapd021:15:090
10050490,0irq/346-48484000-21swapper/022:50:250
10050490,0irq/346-48484000-21swapper/021:20:570
10050480,0irq/346-4848400753-21rngd22:52:010
10050480,0irq/346-484840054-21kswapd023:22:160
10050480,0irq/346-484840054-21kswapd022:01:200
10050480,0irq/346-484840054-21kswapd020:31:110
10050480,0irq/346-484840054-21kswapd000:17:070
10050480,0irq/346-484840054-21kswapd000:17:070
10050480,0irq/346-48484000-21swapper/019:26:250
56222470,0chrt10050irq/346-484840020:05:490
56222470,0chrt10050irq/346-484840020:05:490
10050470,0irq/346-484840054-21kswapd022:56:030
10050470,0irq/346-484840054-21kswapd021:46:210
10050470,0irq/346-48484001-21init00:29:490
10050470,0irq/346-48484000-21swapper/022:30:410
10050470,0irq/346-48484000-21swapper/000:24:030
81460,0rcu_preempt3-21ksoftirqd/020:17:050
81460,0rcu_preempt3-21ksoftirqd/019:53:580
81460,0rcu_preempt20806-21df_inode20:51:101
10050460,0irq/346-484840054-21kswapd021:06:230
10050460,0irq/346-484840054-21kswapd000:02:050
10050460,0irq/346-484840014154-1kworker/0:0H00:33:230
10050450,0irq/346-484840011963-1kworker/0:1H20:26:180
81430,0rcu_preempt3-21ksoftirqd/020:41:150
81430,0rcu_preempt3-21ksoftirqd/020:36:130
10050430,0irq/346-484840029480-1kworker/0:0H19:46:190
10050430,0irq/346-484840021063-1kworker/0:0H19:11:210
10050430,0irq/346-484840018465-1kworker/0:1H20:46:120
10050420,0irq/346-484840023505-1kworker/0:0H21:00:530
10050420,0irq/346-484840010229-1kworker/0:0H20:21:200
81410,0rcu_preempt19236-21ps19:06:180
81410,0rcu_preempt19-21ksoftirqd/119:11:061
1832799402,0cyclictest2034-21ping20:11:120
81390,0rcu_preempt21620-21ping19:36:070
68982390,0sleep05381-1kworker/0:3H20:06:590
1832799392,0cyclictest21620-21ping19:31:070
9950380,0irq/345-484840021620-21ping19:21:050
81380,0rcu_preempt21781-21munin-node0
81370,0rcu_preempt21620-21ping19:41:150
81370,0rcu_preempt19-21ksoftirqd/120:46:061
81370,0rcu_preempt19-21ksoftirqd/119:00:571
220032370,0sleep018465-1kworker/0:1H20:55:030
81360,0rcu_preempt3-21ksoftirqd/021:00:550
81350,0rcu_preempt19-21ksoftirqd/120:56:171
81350,0rcu_preempt0-21swapper/120:31:041
81340,0rcu_preempt21620-21ping19:16:141
81340,0rcu_preempt19-21ksoftirqd/120:36:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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