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2025-06-12 - 14:03

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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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 792 highest latencies:
System rack3slot5s.osadl.org (updated Thu Jun 12, 2025 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122212800sleep12288750irq/30-eth0_g0_11:31:581
280572790sleep12288650irq/29-eth0_g0_12:35:471
121680ksoftirqd/195422chrt09:09:050
86712620sleep12288650irq/29-eth0_g0_11:18:331
121590ksoftirqd/12288650irq/29-eth0_g0_09:24:111
121530ksoftirqd/12288650irq/29-eth0_g0_08:49:041
151172510sleep12288750irq/30-eth0_g0_07:19:101
121510ksoftirqd/12288750irq/30-eth0_g0_11:19:040
121480ksoftirqd/12288650irq/29-eth0_g0_09:23:191
121480ksoftirqd/12288650irq/29-eth0_g0_09:22:050
121480ksoftirqd/12288650irq/29-eth0_g0_07:09:120
121470ksoftirqd/12288650irq/29-eth0_g0_10:15:491
2288650460irq/29-eth0_g0_121ksoftirqd/107:04:101
121450ksoftirqd/12288750irq/30-eth0_g0_10:56:020
121450ksoftirqd/12288750irq/30-eth0_g0_09:53:170
121450ksoftirqd/12288650irq/29-eth0_g0_12:33:051
121450ksoftirqd/12288650irq/29-eth0_g0_09:51:251
121450ksoftirqd/12288650irq/29-eth0_g0_09:36:051
2288750440irq/30-eth0_g0_11318-21latency07:04:070
2288650440irq/29-eth0_g0_151752sleep109:31:471
2288650440irq/29-eth0_g0_12749-21sort11:34:071
121440ksoftirqd/12288750irq/30-eth0_g0_12:08:311
121440ksoftirqd/12288750irq/30-eth0_g0_11:08:551
121440ksoftirqd/12288750irq/30-eth0_g0_11:08:551
121440ksoftirqd/12288750irq/30-eth0_g0_11:08:031
121440ksoftirqd/12288750irq/30-eth0_g0_11:08:031
2288650430irq/29-eth0_g0_31ksoftirqd/012:06:480
121430ksoftirqd/12288650irq/29-eth0_g0_11:53:541
121420ksoftirqd/12288650irq/29-eth0_g0_11:46:181
121420ksoftirqd/12288650irq/29-eth0_g0_10:01:421
2288750410irq/30-eth0_g0_22885-21kworker/0:212:35:220
2288750410irq/30-eth0_g0_1219399cyclictest09:24:100
2288650410irq/29-eth0_g0_31ksoftirqd/009:34:150
121410ksoftirqd/12288650irq/29-eth0_g0_08:54:361
2288750400irq/30-eth0_g0_31ksoftirqd/010:19:230
2288750400irq/30-eth0_g0_22885-21kworker/0:211:39:040
2288750400irq/30-eth0_g0_22885-21kworker/0:211:09:590
2288750400irq/30-eth0_g0_22885-21kworker/0:211:09:590
2288650400irq/29-eth0_g0_470-21kworker/1:110:24:061
2288650400irq/29-eth0_g0_121ksoftirqd/110:51:111
2288650400irq/29-eth0_g0_121ksoftirqd/110:40:471
214662400sleep12288650irq/29-eth0_g0_09:58:401
121400ksoftirqd/12288750irq/30-eth0_g0_11:34:500
121400ksoftirqd/12288650irq/29-eth0_g0_12:12:101
121400ksoftirqd/12288650irq/29-eth0_g0_11:52:411
121400ksoftirqd/12288650irq/29-eth0_g0_08:36:581
121400ksoftirqd/12288650irq/29-eth0_g0_08:28:361
121400ksoftirqd/12288650irq/29-eth0_g0_08:21:151
121400ksoftirqd/12288650irq/29-eth0_g0_07:12:121
2288750390irq/30-eth0_g0_22885-21kworker/0:212:00:190
2288750390irq/30-eth0_g0_22885-21kworker/0:211:54:080
2288750390irq/30-eth0_g0_22885-21kworker/0:211:52:520
2288750390irq/30-eth0_g0_22885-21kworker/0:211:31:000
2288750390irq/30-eth0_g0_22885-21kworker/0:211:02:150
2288750390irq/30-eth0_g0_22885-21kworker/0:211:02:150
2288750390irq/30-eth0_g0_22885-21kworker/0:210:38:240
2288750390irq/30-eth0_g0_22885-21kworker/0:210:30:500
2288750390irq/30-eth0_g0_22885-21kworker/0:210:18:280
2288750390irq/30-eth0_g0_22885-21kworker/0:209:44:030
2288750390irq/30-eth0_g0_14279-21chrt09:29:040
2288650390irq/29-eth0_g0_470-21kworker/1:109:43:521
2288650390irq/29-eth0_g0_272392sleep110:19:161
2288650390irq/29-eth0_g0_23517-21/usr/sbin/munin12:19:071
12194993911cyclictest4533-21unixbench_multi10:59:181
12194993911cyclictest4533-21unixbench_multi10:59:181
121390ksoftirqd/12288750irq/30-eth0_g0_11:18:270
121390ksoftirqd/12288650irq/29-eth0_g0_12:01:591
121390ksoftirqd/12288650irq/29-eth0_g0_10:43:541
121390ksoftirqd/12288650irq/29-eth0_g0_10:08:521
121390ksoftirqd/12288650irq/29-eth0_g0_08:00:341
121390ksoftirqd/12288650irq/29-eth0_g0_07:58:471
121390ksoftirqd/12288650irq/29-eth0_g0_07:58:471
121390ksoftirqd/12288650irq/29-eth0_g0_07:53:511
121390ksoftirqd/12288650irq/29-eth0_g0_07:38:331
2288750380irq/30-eth0_g0_31ksoftirqd/012:29:530
2288750380irq/30-eth0_g0_31ksoftirqd/011:08:520
2288750380irq/30-eth0_g0_31ksoftirqd/011:08:520
2288750380irq/30-eth0_g0_31ksoftirqd/009:54:290
2288750380irq/30-eth0_g0_22885-21kworker/0:212:27:450
2288750380irq/30-eth0_g0_22885-21kworker/0:212:14:180
2288750380irq/30-eth0_g0_22885-21kworker/0:211:46:320
2288750380irq/30-eth0_g0_22885-21kworker/0:211:24:380
2288750380irq/30-eth0_g0_22885-21kworker/0:210:40:180
2288750380irq/30-eth0_g0_22694-21ls07:49:110
2288650380irq/29-eth0_g0_470-21kworker/1:110:09:441
12194993812cyclictest2498-21awk08:39:081
121380ksoftirqd/12288650irq/29-eth0_g0_11:39:071
121380ksoftirqd/12288650irq/29-eth0_g0_09:15:371
117450380irq/72-mmc00-21swapper/107:32:391
2288750370irq/30-eth0_g0_22885-21kworker/0:212:10:570
2288750370irq/30-eth0_g0_22885-21kworker/0:210:50:180
2288750370irq/30-eth0_g0_22885-21kworker/0:210:48:190
2288750370irq/30-eth0_g0_22885-21kworker/0:210:09:180
2288750370irq/30-eth0_g0_22885-21kworker/0:210:05:540
2288750370irq/30-eth0_g0_22885-21kworker/0:210:01:320
2288750370irq/30-eth0_g0_2021-21runrttasks08:54:100
2288650370irq/29-eth0_g0_470-21kworker/1:111:25:231
2288650370irq/29-eth0_g0_121ksoftirqd/107:44:071
2288650370irq/29-eth0_g0_0-21swapper/110:34:161
121370ksoftirqd/1300052sleep008:19:110
121370ksoftirqd/12288750irq/30-eth0_g0_12:19:110
121370ksoftirqd/12288650irq/29-eth0_g0_12:24:051
121370ksoftirqd/12288650irq/29-eth0_g0_11:22:441
2288750360irq/30-eth0_g0_31ksoftirqd/009:15:060
2288750360irq/30-eth0_g0_2021-21runrttasks08:38:550
2288750360irq/30-eth0_g0_17298-21unixbench_multi09:39:150
2288750360irq/30-eth0_g0_121ksoftirqd/110:25:570
2288650360irq/29-eth0_g0_26172-21ntp_kernel_pll_08:04:141
2288650360irq/29-eth0_g0_2021-21runrttasks07:39:000
2288750350irq/30-eth0_g0_0-21swapper/008:09:160
2288650350irq/29-eth0_g0_8389-21sort09:04:081
2288650350irq/29-eth0_g0_2021-21runrttasks12:17:361
2288650350irq/29-eth0_g0_2021-21runrttasks10:55:561
2288650350irq/29-eth0_g0_1219499cyclictest09:09:201
121350ksoftirqd/12288750irq/30-eth0_g0_07:55:250
121350ksoftirqd/12288750irq/30-eth0_g0_07:55:250
2288750340irq/30-eth0_g0_31667-21taskset08:27:070
2288750340irq/30-eth0_g0_28891-21unixbench_multi08:14:120
2288650340irq/29-eth0_g0_2021-21runrttasks07:33:390
1219499348cyclictest7070-21ethtool08:59:091
1219499342cyclictest27300-21memory08:09:091
2288750330irq/30-eth0_g0_2021-21runrttasks09:03:250
2288750330irq/30-eth0_g0_2021-21runrttasks07:36:170
2288750330irq/30-eth0_g0_16207-21cat07:24:060
2288750330irq/30-eth0_g0_1390-21unixbench_singl08:34:160
2288650330irq/29-eth0_g0_470-21kworker/1:109:45:141
2288650330irq/29-eth0_g0_3175-21/usr/sbin/munin08:44:151
2288650330irq/29-eth0_g0_16419-21proc_pri07:24:101
2288650330irq/29-eth0_g0_0-21swapper/108:14:081
2288650330irq/29-eth0_g0_0-21swapper/107:18:511
121330ksoftirqd/12288750irq/30-eth0_g0_08:08:240
121330ksoftirqd/12288650irq/29-eth0_g0_08:30:401
2288750320irq/30-eth0_g0_2021-21runrttasks09:04:080
2288750320irq/30-eth0_g0_2021-21runrttasks08:48:450
2288650320irq/29-eth0_g0_29608-21tail10:29:161
2288650320irq/29-eth0_g0_20996-21sed07:44:040
2288650320irq/29-eth0_g0_20273-21grep07:39:111
2288650320irq/29-eth0_g0_1219399cyclictest07:14:080
2288750310irq/30-eth0_g0_2021-21runrttasks07:23:040
2288650310irq/29-eth0_g0_24842-21chrt07:59:060
2288750300irq/30-eth0_g0_2021-21runrttasks08:49:490
2288650300irq/29-eth0_g0_2021-21runrttasks08:28:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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