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2025-02-11 - 02:26

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 792 highest latencies:
System rack3slot5s.osadl.org (updated Tue Feb 11, 2025 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2424721390chrt121750irq/30-eth0_g0_22:32:311
127421390sleep0121650irq/29-eth0_g0_23:15:590
127421390sleep0121650irq/29-eth0_g0_23:15:590
2286321240sleep0121650irq/29-eth0_g0_22:25:400
121880ksoftirqd/1121750irq/30-eth0_g0_22:44:341
314342570sleep0121650irq/29-eth0_g0_23:08:040
121560ksoftirqd/1121750irq/30-eth0_g0_19:45:461
945399541cyclictest5069-21ntp_offset23:35:121
945399541cyclictest12314-21/usr/sbin/munin21:35:101
214872540sleep0121650irq/29-eth0_g0_22:19:480
945399531cyclictest25722-21/usr/sbin/munin20:15:081
945399531cyclictest2261-21fgrep23:20:151
945399531cyclictest2010-21runrttasks23:16:231
945399531cyclictest2010-21runrttasks23:16:231
945399522cyclictest0-21swapper/123:25:241
945399521cyclictest9033-21df23:55:091
945399521cyclictest30779-21taskset20:35:101
121520ksoftirqd/1121750irq/30-eth0_g0_22:25:051
121520ksoftirqd/1121750irq/30-eth0_g0_22:15:061
945399511cyclictest17347-21cat21:59:541
945399511cyclictest0-21swapper/122:21:491
121510ksoftirqd/1121750irq/30-eth0_g0_22:58:291
945399502cyclictest10337-21iostat00:00:091
945399501cyclictest4248-21df21:00:061
945399501cyclictest248612sleep120:10:171
945399492cyclictest29078-21/usr/sbin/munin20:29:541
945399491cyclictest27426-21grep20:20:161
121750490irq/30-eth0_g0_121ksoftirqd/121:40:091
121490ksoftirqd/1121750irq/30-eth0_g0_22:35:571
945399481cyclictest15079-21grep19:30:181
158012480sleep1121650irq/29-eth0_g0_21:51:341
121480ksoftirqd/1121750irq/30-eth0_g0_21:18:071
9453994725cyclictest35722chrt23:30:021
945399471cyclictest11400-21grep21:30:121
121750470irq/30-eth0_g0_121ksoftirqd/100:11:291
121470ksoftirqd/1121750irq/30-eth0_g0_22:54:051
121470ksoftirqd/1121650irq/29-eth0_g0_23:06:501
121750460irq/30-eth0_g0_121ksoftirqd/123:10:521
121750460irq/30-eth0_g0_0-21swapper/100:17:391
945399451cyclictest6481-21diskmemload21:10:001
945399451cyclictest17029-21sshd19:40:071
121750450irq/30-eth0_g0_945399cyclictest00:31:301
121750450irq/30-eth0_g0_945399cyclictest00:22:241
121750450irq/30-eth0_g0_121ksoftirqd/123:47:171
121750450irq/30-eth0_g0_121ksoftirqd/119:20:111
945399442cyclictest3339-21taskset20:55:131
121750440irq/30-eth0_g0_121ksoftirqd/121:45:491
121750440irq/30-eth0_g0_121ksoftirqd/100:27:381
121650440irq/29-eth0_g0_13-21kworker/0:122:05:010
121750430irq/30-eth0_g0_121ksoftirqd/122:05:531
121750430irq/30-eth0_g0_121ksoftirqd/121:21:031
121650430irq/29-eth0_g0_945399cyclictest00:36:121
121430ksoftirqd/1121650irq/29-eth0_g0_23:01:471
945399421cyclictest0-21swapper/120:44:541
945399421cyclictest0-21swapper/119:52:101
121750420irq/30-eth0_g0_945399cyclictest21:28:321
121750420irq/30-eth0_g0_8272-21tail23:50:141
121750420irq/30-eth0_g0_121ksoftirqd/123:41:121
121750420irq/30-eth0_g0_121ksoftirqd/122:10:051
121650420irq/29-eth0_g0_8307-21/usr/sbin/munin19:05:100
121750410irq/30-eth0_g0_1219-21kworker/1:200:09:411
121750410irq/30-eth0_g0_121ksoftirqd/120:50:111
121750410irq/30-eth0_g0_0-21swapper/021:00:070
121650410irq/29-eth0_g0_6481-21diskmemload23:11:150
121410ksoftirqd/196452sleep023:55:400
121410ksoftirqd/1121650irq/29-eth0_g0_23:46:580
182342400sleep0121650irq/29-eth0_g0_22:01:190
121750400irq/30-eth0_g0_121ksoftirqd/122:48:501
121750400irq/30-eth0_g0_121ksoftirqd/122:00:301
121650400irq/29-eth0_g0_31ksoftirqd/022:19:560
121650400irq/29-eth0_g0_31ksoftirqd/021:47:540
121650390irq/29-eth0_g0_945299cyclictest23:50:130
121650390irq/29-eth0_g0_13-21kworker/0:123:37:070
121650390irq/29-eth0_g0_13-21kworker/0:123:27:240
121650390irq/29-eth0_g0_13-21kworker/0:123:02:090
121650390irq/29-eth0_g0_13-21kworker/0:122:56:260
121650390irq/29-eth0_g0_13-21kworker/0:121:59:040
121650390irq/29-eth0_g0_13-21kworker/0:121:32:300
121650390irq/29-eth0_g0_13-21kworker/0:100:10:040
121650390irq/29-eth0_g0_121ksoftirqd/121:52:100
945399382cyclictest5640-21memory21:05:101
121650380irq/29-eth0_g0_31ksoftirqd/000:30:040
121650380irq/29-eth0_g0_13-21kworker/0:122:40:190
121650380irq/29-eth0_g0_13-21kworker/0:100:06:460
121650380irq/29-eth0_g0_12675-21unixbench_singl19:20:150
121380ksoftirqd/1121750irq/30-eth0_g0_21:18:380
121380ksoftirqd/1121650irq/29-eth0_g0_22:51:240
1099380migration/18847-21sendmail_mailqu19:05:141
945399371cyclictest16330-21sed19:35:151
945399371cyclictest13225-21/usr/sbin/munin19:25:071
121650370irq/29-eth0_g0_29422-21latency20:30:110
121650370irq/29-eth0_g0_13-21kworker/0:123:40:430
121650370irq/29-eth0_g0_13-21kworker/0:123:30:090
121650370irq/29-eth0_g0_13-21kworker/0:123:24:050
121650370irq/29-eth0_g0_13-21kworker/0:122:35:520
121650370irq/29-eth0_g0_13-21kworker/0:122:10:560
121650370irq/29-eth0_g0_13-21kworker/0:121:41:460
121650370irq/29-eth0_g0_13-21kworker/0:121:27:130
121650370irq/29-eth0_g0_0-21swapper/000:39:260
121650370irq/29-eth0_g0_0-21swapper/000:23:010
121370ksoftirqd/1121750irq/30-eth0_g0_21:14:230
121370ksoftirqd/1121650irq/29-eth0_g0_20:08:491
945399361cyclictest9603-21df19:10:061
121650360irq/29-eth0_g0_945299cyclictest22:32:490
121650360irq/29-eth0_g0_13-21kworker/0:121:38:130
121650360irq/29-eth0_g0_13-21kworker/0:100:26:010
121360ksoftirqd/1945399cyclictest19:57:091
945399351cyclictest534-21sed20:45:081
945399351cyclictest29878-21unixbench_singl20:30:181
945399351cyclictest11470-21grep19:15:171
121650350irq/29-eth0_g0_945299cyclictest21:21:030
121650350irq/29-eth0_g0_13-21kworker/0:100:17:580
121650340irq/29-eth0_g0_3340-21proc_pri20:55:130
121650340irq/29-eth0_g0_13-21kworker/0:122:47:190
121650340irq/29-eth0_g0_0-21swapper/000:04:210
945399331cyclictest0-21swapper/120:02:381
121650330irq/29-eth0_g0_9603-21df19:10:060
121650330irq/29-eth0_g0_26200-21unixbench_singl20:15:150
121650330irq/29-eth0_g0_14413-21latency_hist19:29:550
121650320irq/29-eth0_g0_24644-21/usr/sbin/munin20:10:130
121650320irq/29-eth0_g0_21230-21unixbench_multi19:55:160
121650320irq/29-eth0_g0_19552-21/usr/sbin/munin19:50:090
121650320irq/29-eth0_g0_18816-21unixbench_singl19:45:160
121650320irq/29-eth0_g0_17152-21latency19:40:090
121650320irq/29-eth0_g0_10948-21if_err_eth019:15:080
121650320irq/29-eth0_g0_0-21swapper/021:06:320
121650320irq/29-eth0_g0_0-21swapper/020:38:070
121650320irq/29-eth0_g0_0-21swapper/020:07:510
121750310irq/30-eth0_g0_27246-21rt-features20:20:140
121650310irq/29-eth0_g0_945299cyclictest20:45:100
121650310irq/29-eth0_g0_0-21swapper/020:40:090
121650310irq/29-eth0_g0_0-21swapper/020:28:080
121650300irq/29-eth0_g0_16855-21latency_hist19:39:540
121650300irq/29-eth0_g0_0-21swapper/019:30:270
121650290irq/29-eth0_g0_945299cyclictest20:50:090
121650290irq/29-eth0_g0_21811-21/usr/sbin/munin20:00:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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