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2025-06-28 - 20:41

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, 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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  Eltec
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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 rack3slot5s.osadl.org (updated Sat Jun 28, 2025 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1940821750chrt2288650irq/29-eth0_g0_10:45:230
121870ksoftirqd/12288750irq/30-eth0_g0_07:03:341
121860ksoftirqd/12288750irq/30-eth0_g0_10:07:561
242902790sleep02288650irq/29-eth0_g0_11:05:080
104272780sleep02288650irq/29-eth0_g0_12:22:230
84972730sleep12288650irq/29-eth0_g0_10:01:381
81462700sleep02288650irq/29-eth0_g0_12:13:240
121670ksoftirqd/12288750irq/30-eth0_g0_09:33:331
121590ksoftirqd/12288650irq/29-eth0_g0_11:13:431
127072560sleep02288650irq/29-eth0_g0_12:30:270
121560ksoftirqd/12288750irq/30-eth0_g0_11:08:471
141402490sleep02288650irq/29-eth0_g0_12:37:520
121490ksoftirqd/12288750irq/30-eth0_g0_08:58:280
121490ksoftirqd/12288650irq/29-eth0_g0_09:13:270
67492460sleep02288650irq/29-eth0_g0_12:07:180
29012440sleep02288750irq/30-eth0_g0_11:50:130
121440ksoftirqd/12288750irq/30-eth0_g0_10:31:441
121440ksoftirqd/12288650irq/29-eth0_g0_08:53:131
121440ksoftirqd/12288650irq/29-eth0_g0_08:23:401
2288750430irq/30-eth0_g0_31ksoftirqd/010:59:170
2288750430irq/30-eth0_g0_22885-21kworker/0:209:19:320
121430ksoftirqd/12288750irq/30-eth0_g0_10:33:410
2288750420irq/30-eth0_g0_30008-21sendmail_mailqu07:03:310
2288750420irq/30-eth0_g0_31ksoftirqd/011:14:230
2288750420irq/30-eth0_g0_22885-21kworker/0:211:23:390
2288750420irq/30-eth0_g0_22885-21kworker/0:209:45:110
2288650420irq/29-eth0_g0_470-21kworker/1:111:50:041
2288650420irq/29-eth0_g0_207182sleep110:51:241
2288650420irq/29-eth0_g0_121ksoftirqd/110:17:521
121420ksoftirqd/12288750irq/30-eth0_g0_10:22:361
2288750410irq/30-eth0_g0_8782-21unixbench_singl07:48:470
2288750410irq/30-eth0_g0_22885-21kworker/0:210:57:040
2288750410irq/30-eth0_g0_0-21swapper/108:43:281
2288650410irq/29-eth0_g0_470-21kworker/1:111:25:321
2288650410irq/29-eth0_g0_470-21kworker/1:109:23:051
2288650410irq/29-eth0_g0_108362sleep110:10:211
2288650410irq/29-eth0_g0_0-21swapper/109:08:131
121410ksoftirqd/12288650irq/29-eth0_g0_09:48:441
121410ksoftirqd/12288650irq/29-eth0_g0_09:28:131
2288750400irq/30-eth0_g0_31ksoftirqd/009:08:340
2288750400irq/30-eth0_g0_22885-21kworker/0:211:54:110
2288750400irq/30-eth0_g0_22885-21kworker/0:211:18:360
2288750400irq/30-eth0_g0_22885-21kworker/0:210:04:570
2288750400irq/30-eth0_g0_22885-21kworker/0:209:52:330
2288750400irq/30-eth0_g0_16135-21head08:18:380
2288650400irq/29-eth0_g0_470-21kworker/1:109:11:481
2288650400irq/29-eth0_g0_31ksoftirqd/011:39:420
2288650400irq/29-eth0_g0_31ksoftirqd/009:30:170
2288650400irq/29-eth0_g0_19712-21ls10:48:141
121400ksoftirqd/12288650irq/29-eth0_g0_12:03:051
2288750390irq/30-eth0_g0_31ksoftirqd/011:34:260
2288750390irq/30-eth0_g0_22885-21kworker/0:212:12:250
2288750390irq/30-eth0_g0_22885-21kworker/0:211:45:290
2288750390irq/30-eth0_g0_22885-21kworker/0:210:48:470
2288750390irq/30-eth0_g0_22885-21kworker/0:210:17:050
2288750390irq/30-eth0_g0_22885-21kworker/0:210:12:070
2288750390irq/30-eth0_g0_15008-21/usr/sbin/munin10:28:260
2288750390irq/30-eth0_g0_14274-21taskset08:13:290
2288650390irq/29-eth0_g0_470-21kworker/1:112:23:301
2288650390irq/29-eth0_g0_470-21kworker/1:109:28:321
2288650390irq/29-eth0_g0_3722sleep111:39:521
2288650390irq/29-eth0_g0_22885-21kworker/0:211:10:590
2288650390irq/29-eth0_g0_121ksoftirqd/112:07:331
2288650390irq/29-eth0_g0_121ksoftirqd/109:13:261
2288650390irq/29-eth0_g0_0-21swapper/110:38:571
121390ksoftirqd/12288650irq/29-eth0_g0_11:48:131
121390ksoftirqd/12288650irq/29-eth0_g0_11:05:371
121390ksoftirqd/12288650irq/29-eth0_g0_10:27:041
121390ksoftirqd/12288650irq/29-eth0_g0_08:40:171
121390ksoftirqd/12288650irq/29-eth0_g0_08:35:441
121390ksoftirqd/12288650irq/29-eth0_g0_07:16:331
121390ksoftirqd/12288650irq/29-eth0_g0_07:12:261
2288750380irq/30-eth0_g0_31ksoftirqd/009:53:500
2288750380irq/30-eth0_g0_2840-21iostat09:38:310
2288750380irq/30-eth0_g0_22885-21kworker/0:212:24:020
2288750380irq/30-eth0_g0_22885-21kworker/0:210:28:120
2288750380irq/30-eth0_g0_22885-21kworker/0:210:19:150
2288750380irq/30-eth0_g0_1863-21latency_hist07:23:140
2288650380irq/29-eth0_g0_470-21kworker/1:111:28:551
2288650380irq/29-eth0_g0_30929-21df_inode11:33:291
2288650380irq/29-eth0_g0_3062199cyclictest09:38:351
2288650380irq/29-eth0_g0_18565-21unixbench_singl08:28:361
2288650380irq/29-eth0_g0_121ksoftirqd/110:58:371
2288650380irq/29-eth0_g0_0-21swapper/112:31:271
121380ksoftirqd/12288650irq/29-eth0_g0_12:21:301
78812370sleep12288650irq/29-eth0_g0_12:11:131
2288750370irq/30-eth0_g0_22885-21kworker/0:212:02:550
2288750370irq/30-eth0_g0_22885-21kworker/0:210:40:470
2288750370irq/30-eth0_g0_22885-21kworker/0:210:02:350
2288750370irq/30-eth0_g0_22885-21kworker/0:209:24:470
2288750370irq/30-eth0_g0_121ksoftirqd/111:56:331
2288650370irq/29-eth0_g0_4687-21ls07:33:311
2288650370irq/29-eth0_g0_2650-21unixbench_singl07:23:351
2288650370irq/29-eth0_g0_26391-21wc09:03:131
2288650370irq/29-eth0_g0_0-21swapper/110:33:291
121370ksoftirqd/12288650irq/29-eth0_g0_11:29:560
2288750360irq/30-eth0_g0_2021-21runrttasks08:37:170
2288750360irq/30-eth0_g0_2021-21runrttasks08:31:300
2288750360irq/30-eth0_g0_2021-21runrttasks08:27:160
2288750360irq/30-eth0_g0_0-21swapper/008:53:300
2288650360irq/29-eth0_g0_470-21kworker/1:112:37:371
2288650360irq/29-eth0_g0_3062199cyclictest10:56:381
30621993520cyclictest6937-21sed07:43:281
2288750350irq/30-eth0_g0_3062199cyclictest12:13:331
2288750350irq/30-eth0_g0_0-21swapper/009:35:400
2288650350irq/29-eth0_g0_6951-21grep09:53:371
2288650350irq/29-eth0_g0_6290-21grep07:38:351
2288650350irq/29-eth0_g0_27335-21irqstats11:18:311
2288650350irq/29-eth0_g0_14843-21unixbench_multi08:13:381
2288650350irq/29-eth0_g0_1351-21unixbench_multi07:18:381
2288650350irq/29-eth0_g0_10804-21latency07:58:301
2288650350irq/29-eth0_g0_0-21swapper/108:18:281
2288650350irq/29-eth0_g0_0-21swapper/108:08:281
2288750340irq/30-eth0_g0_2021-21runrttasks08:41:180
2288750340irq/30-eth0_g0_2021-21runrttasks07:44:290
2288650340irq/29-eth0_g0_12419-21unixbench_multi08:03:381
2288650340irq/29-eth0_g0_0-21swapper/107:48:351
2288650340irq/29-eth0_g0_0-21swapper/107:28:361
121340ksoftirqd/12288650irq/29-eth0_g0_07:56:231
2288750330irq/30-eth0_g0_3566-21ntp_kernel_err07:28:310
2288750330irq/30-eth0_g0_31308-21sort07:08:410
2288750330irq/30-eth0_g0_27090-21grep09:03:370
2288750330irq/30-eth0_g0_23245-21ps08:48:340
2288750330irq/30-eth0_g0_2021-21runrttasks08:02:320
2288750330irq/30-eth0_g0_2021-21runrttasks07:34:420
2288750330irq/30-eth0_g0_2021-21runrttasks07:27:570
2288750330irq/30-eth0_g0_13221-21irqstats08:08:290
2288650330irq/29-eth0_g0_24009-21cpu08:53:261
2288650330irq/29-eth0_g0_0-21swapper/109:43:271
2288750320irq/30-eth0_g0_6038-21ntp_states07:38:320
2288650320irq/29-eth0_g0_0-21swapper/008:43:290
2288750310irq/30-eth0_g0_32091-21df_inode07:13:280
2288750310irq/30-eth0_g0_2021-21runrttasks07:53:340
2288650300irq/29-eth0_g0_0-21swapper/008:03:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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