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2025-05-21 - 01:30

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 376 highest latencies:
System rack3slot5s.osadl.org (updated Tue May 20, 2025 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
613721270sleep0121750irq/30-eth0_g0_12:18:420
111712900sleep1121650irq/29-eth0_g0_10:25:071
121850ksoftirqd/1121750irq/30-eth0_g0_08:25:501
121840ksoftirqd/1121650irq/29-eth0_g0_11:44:570
261882760sleep0121650irq/29-eth0_g0_11:26:530
179592740sleep1121750irq/30-eth0_g0_10:54:571
22372730sleep0121650irq/29-eth0_g0_07:34:570
121690ksoftirqd/1121750irq/30-eth0_g0_12:06:301
121560ksoftirqd/1121750irq/30-eth0_g0_10:20:201
102942550sleep0121750irq/30-eth0_g0_10:22:020
121500ksoftirqd/1121750irq/30-eth0_g0_07:32:411
121490ksoftirqd/1121750irq/30-eth0_g0_10:42:331
326972470sleep1121750irq/30-eth0_g0_09:39:451
302042470sleep0121750irq/30-eth0_g0_09:29:440
121750460irq/30-eth0_g0_121ksoftirqd/107:24:361
121650460irq/29-eth0_g0_22331-21unixbench_singl11:10:090
121650460irq/29-eth0_g0_16148-21unixbench_multi10:45:080
121460ksoftirqd/1121750irq/30-eth0_g0_10:35:301
121750450irq/30-eth0_g0_470-21kworker/1:111:43:361
121650450irq/29-eth0_g0_31ksoftirqd/011:54:580
121650450irq/29-eth0_g0_17421-21unixbench_singl10:50:090
121450ksoftirqd/1121650irq/29-eth0_g0_09:52:181
121440ksoftirqd/1316522sleep009:34:580
121440ksoftirqd/1121750irq/30-eth0_g0_12:35:041
121750430irq/30-eth0_g0_470-21kworker/1:112:17:051
121750430irq/30-eth0_g0_470-21kworker/1:111:02:591
121750430irq/30-eth0_g0_470-21kworker/1:111:02:591
121750430irq/30-eth0_g0_470-21kworker/1:109:32:561
121750430irq/30-eth0_g0_470-21kworker/1:109:21:141
121650430irq/29-eth0_g0_31ksoftirqd/011:40:080
121650430irq/29-eth0_g0_31ksoftirqd/011:34:590
121750420irq/30-eth0_g0_470-21kworker/1:112:25:001
121750420irq/30-eth0_g0_470-21kworker/1:111:38:231
121750420irq/30-eth0_g0_470-21kworker/1:111:25:201
121750420irq/30-eth0_g0_1662-21/usr/sbin/munin09:45:001
121650420irq/29-eth0_g0_31ksoftirqd/009:45:060
121650420irq/29-eth0_g0_23860-21chrt11:18:200
121650420irq/29-eth0_g0_2021-21runrttasks07:06:070
121650420irq/29-eth0_g0_188412sleep010:56:530
121650420irq/29-eth0_g0_13-21kworker/0:111:05:170
121750410irq/30-eth0_g0_470-21kworker/1:111:23:441
121750410irq/30-eth0_g0_321962sleep111:50:451
121650410irq/29-eth0_g0_31ksoftirqd/009:50:010
121650410irq/29-eth0_g0_2021-21runrttasks09:55:230
121650410irq/29-eth0_g0_13-21kworker/0:111:02:330
121650410irq/29-eth0_g0_13-21kworker/0:111:02:330
121650410irq/29-eth0_g0_13-21kworker/0:110:05:330
2838099401cyclictest32594-21ps07:25:041
2838099401cyclictest23487-21grep11:15:061
2838099401cyclictest21197-21grep08:50:071
121750400irq/30-eth0_g0_470-21kworker/1:112:14:251
121650400irq/29-eth0_g0_7640-21unixbench_singl10:10:100
121650400irq/29-eth0_g0_31ksoftirqd/010:34:030
121650400irq/29-eth0_g0_13-21kworker/0:110:27:200
121400ksoftirqd/1121650irq/29-eth0_g0_11:33:031
121400ksoftirqd/1121650irq/29-eth0_g0_08:39:391
121750390irq/30-eth0_g0_470-21kworker/1:110:01:481
121750390irq/30-eth0_g0_470-21kworker/1:109:14:091
121750390irq/30-eth0_g0_0-21swapper/110:52:081
121650390irq/29-eth0_g0_30537-21iostat09:30:040
121650390irq/29-eth0_g0_31ksoftirqd/011:59:590
121650390irq/29-eth0_g0_31ksoftirqd/011:30:390
121650390irq/29-eth0_g0_13172-21df_abs10:34:580
121650390irq/29-eth0_g0_13-21kworker/0:112:30:030
121650390irq/29-eth0_g0_13-21kworker/0:109:18:530
121650390irq/29-eth0_g0_121ksoftirqd/111:49:450
121650390irq/29-eth0_g0_121ksoftirqd/107:05:021
121390ksoftirqd/1121650irq/29-eth0_g0_10:18:081
121390ksoftirqd/1121650irq/29-eth0_g0_09:17:021
121390ksoftirqd/1121650irq/29-eth0_g0_08:05:411
121390ksoftirqd/1121650irq/29-eth0_g0_07:38:241
2838099382cyclictest7708-21tail07:55:091
2838099382cyclictest24704-21awk09:05:081
121750380irq/30-eth0_g0_470-21kworker/1:112:03:581
121750380irq/30-eth0_g0_470-21kworker/1:111:05:361
121750380irq/30-eth0_g0_22308-21unixbench_singl11:10:081
121750380irq/30-eth0_g0_121ksoftirqd/112:33:441
121750380irq/30-eth0_g0_121ksoftirqd/112:24:121
121750380irq/30-eth0_g0_121ksoftirqd/111:44:461
121650380irq/29-eth0_g0_7853-21sed12:25:040
121650380irq/29-eth0_g0_5197-21unixbench_singl10:00:080
121650380irq/29-eth0_g0_31ksoftirqd/012:08:270
121650380irq/29-eth0_g0_31ksoftirqd/010:16:190
121650380irq/29-eth0_g0_2021-21runrttasks08:50:560
121650380irq/29-eth0_g0_13-21kworker/0:112:13:160
121650380irq/29-eth0_g0_13-21kworker/0:109:44:190
121650380irq/29-eth0_g0_13-21kworker/0:109:10:020
121650380irq/29-eth0_g0_121ksoftirqd/110:49:141
121380ksoftirqd/1121650irq/29-eth0_g0_10:30:031
121380ksoftirqd/1121650irq/29-eth0_g0_08:19:351
121380ksoftirqd/1121650irq/29-eth0_g0_08:03:331
121380ksoftirqd/1121650irq/29-eth0_g0_07:15:551
2838099371cyclictest5307-21grep07:45:091
2838099371cyclictest25310-21diskmemload09:25:011
2838099371cyclictest23641-21unixbench_multi09:00:251
121750370irq/30-eth0_g0_470-21kworker/1:111:56:051
121750370irq/30-eth0_g0_470-21kworker/1:109:57:201
121750370irq/30-eth0_g0_16392-21seq08:30:351
121750370irq/30-eth0_g0_0-21swapper/109:39:571
121650370irq/29-eth0_g0_3648-21sort07:40:000
121650370irq/29-eth0_g0_31ksoftirqd/012:39:050
121650370irq/29-eth0_g0_2021-21runrttasks07:15:000
121650370irq/29-eth0_g0_13-21kworker/0:109:23:040
121650370irq/29-eth0_g0_0-21swapper/007:50:220
2838099361cyclictest6520-21grep07:50:241
2838099361cyclictest0-21swapper/108:45:161
121750360irq/30-eth0_g0_470-21kworker/1:110:10:091
121650360irq/29-eth0_g0_23618-21unixbench_multi09:00:250
121650360irq/29-eth0_g0_18711-21unixbench_multi08:40:071
121650360irq/29-eth0_g0_13-21kworker/0:112:23:010
121650360irq/29-eth0_g0_13-21kworker/0:111:20:060
121650360irq/29-eth0_g0_13-21kworker/0:110:41:500
121650360irq/29-eth0_g0_0-21swapper/008:46:050
28380993520cyclictest11020-21/usr/sbin/munin08:10:011
2838099351cyclictest138052sleep108:20:071
121750350irq/30-eth0_g0_0-21swapper/110:07:271
121650350irq/29-eth0_g0_8831-21wc08:00:050
121650350irq/29-eth0_g0_4776-21df_abs07:45:000
121650350irq/29-eth0_g0_2837999cyclictest07:55:070
121650350irq/29-eth0_g0_22584-21taskset08:56:320
121650350irq/29-eth0_g0_2021-21runrttasks08:34:130
121650350irq/29-eth0_g0_0-21swapper/007:10:070
121650340irq/29-eth0_g0_32538-21ntp_states07:25:030
121650340irq/29-eth0_g0_2084-21wc07:34:450
121650340irq/29-eth0_g0_18215-21df_inode08:39:580
121650340irq/29-eth0_g0_14637-21irqstats08:25:010
121650340irq/29-eth0_g0_13428-21latency08:20:000
290932330sleep129102-21unixbench_multi07:10:071
2838099331cyclictest3552-21df_inode07:39:571
2838099331cyclictest0-21swapper/108:59:101
121650330irq/29-eth0_g0_31463-21mailstats07:20:060
121650330irq/29-eth0_g0_24850-21/usr/sbin/munin09:05:110
121650330irq/29-eth0_g0_12091-21sed08:14:590
121650330irq/29-eth0_g0_10736-21runrttasks08:09:560
121650330irq/29-eth0_g0_10251-21vmstat08:05:100
121650320irq/29-eth0_g0_17534-21unixbench_singl08:35:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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