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2024-12-10 - 07:00

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 Dec 10, 2024 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
312140ksoftirqd/039292chrt19:09:280
3035121090sleep0121450irq/29-eth0_g0_23:10:310
5932780sleep0121550irq/30-eth0_g0_23:23:260
92282730sleep1121550irq/30-eth0_g0_23:58:511
152592730chrt121550irq/30-eth0_g0_19:55:000
152592730chrt121550irq/30-eth0_g0_19:55:000
152922720sleep1121550irq/30-eth0_g0_22:10:041
61342700sleep1121550irq/30-eth0_g0_23:45:061
8162690sleep1121550irq/30-eth0_g0_21:09:461
33942680sleep1121450irq/29-eth0_g0_21:19:521
289872640chrt121550irq/30-eth0_g0_23:05:080
255072610sleep1121550irq/30-eth0_g0_22:51:031
274422590sleep0121550irq/30-eth0_g0_23:00:050
181442570sleep1121450irq/29-eth0_g0_22:20:451
153582570sleep1121450irq/29-eth0_g0_00:24:101
43092560sleep0121450irq/29-eth0_g0_23:38:300
78062520sleep0121450irq/29-eth0_g0_23:51:310
105042520sleep0121550irq/30-eth0_g0_00:04:300
121490ksoftirqd/1121550irq/30-eth0_g0_19:40:081
28352480sleep1121450irq/29-eth0_g0_23:30:351
121550480irq/30-eth0_g0_1221-21kworker/1:200:31:441
121550480irq/30-eth0_g0_1221-21kworker/1:200:31:441
121470ksoftirqd/1121550irq/30-eth0_g0_20:04:591
208402460chrt121450irq/29-eth0_g0_22:33:431
121460ksoftirqd/1121550irq/30-eth0_g0_21:25:301
243192450sleep0121550irq/30-eth0_g0_22:46:280
157132450sleep1121450irq/29-eth0_g0_00:24:591
121550450irq/30-eth0_g0_121ksoftirqd/120:30:081
121550450irq/30-eth0_g0_121ksoftirqd/119:45:091
121450ksoftirqd/1121550irq/30-eth0_g0_19:20:011
233702440sleep1121450irq/29-eth0_g0_22:44:421
190552440sleep0121450irq/29-eth0_g0_00:39:370
121550440irq/30-eth0_g0_141412sleep100:19:121
121550440irq/30-eth0_g0_121ksoftirqd/121:45:111
121550440irq/30-eth0_g0_121ksoftirqd/100:35:081
121450440irq/29-eth0_g0_65862sleep023:46:310
107462440sleep1121450irq/29-eth0_g0_21:50:051
121550430irq/30-eth0_g0_1221-21kworker/1:223:25:531
121450430irq/29-eth0_g0_13276-21sed19:45:100
121450430irq/29-eth0_g0_121ksoftirqd/100:09:461
121430ksoftirqd/1121550irq/30-eth0_g0_20:58:561
121430ksoftirqd/1121450irq/29-eth0_g0_00:13:461
121550420irq/30-eth0_g0_1221-21kworker/1:222:27:021
121550420irq/30-eth0_g0_121ksoftirqd/100:00:001
121450420irq/29-eth0_g0_16093-21chrt22:14:470
121450420irq/29-eth0_g0_13-21kworker/0:122:54:140
121420ksoftirqd/1121550irq/30-eth0_g0_23:43:110
121420ksoftirqd/1121550irq/30-eth0_g0_23:02:291
121420ksoftirqd/1121550irq/30-eth0_g0_20:13:291
121550410irq/30-eth0_g0_3336-21runrttasks19:05:041
121550410irq/30-eth0_g0_1221-21kworker/1:223:15:021
121450410irq/29-eth0_g0_13-21kworker/0:123:32:480
121450410irq/29-eth0_g0_13-21kworker/0:100:22:430
121450410irq/29-eth0_g0_121ksoftirqd/123:10:081
121450410irq/29-eth0_g0_10298-21df_inode19:34:590
121550400irq/30-eth0_g0_1221-21kworker/1:223:41:181
121550400irq/30-eth0_g0_1221-21kworker/1:223:24:471
121550400irq/30-eth0_g0_1221-21kworker/1:221:59:081
121550400irq/30-eth0_g0_121ksoftirqd/123:39:041
121450400irq/29-eth0_g0_31ksoftirqd/023:26:530
121450400irq/29-eth0_g0_121ksoftirqd/121:30:031
121550390irq/30-eth0_g0_1221-21kworker/1:222:06:181
121550390irq/30-eth0_g0_121ksoftirqd/122:46:531
121550390irq/30-eth0_g0_121ksoftirqd/121:18:031
121550390irq/30-eth0_g0_121ksoftirqd/119:25:071
121450390irq/29-eth0_g0_8911-21vmstat23:55:090
121450390irq/29-eth0_g0_821-21diskmemload22:35:000
121450390irq/29-eth0_g0_4776-21df_abs21:25:000
121450390irq/29-eth0_g0_22596-21irqstats20:25:010
121550380irq/30-eth0_g0_1221-21kworker/1:223:52:311
121550380irq/30-eth0_g0_1221-21kworker/1:221:34:591
121550380irq/30-eth0_g0_0-21swapper/122:17:091
121550380irq/30-eth0_g0_0-21swapper/121:41:101
121450380irq/29-eth0_g0_9291-21netstat19:30:020
121450380irq/29-eth0_g0_31ksoftirqd/022:39:530
121450380irq/29-eth0_g0_29989-21memory20:55:030
121450380irq/29-eth0_g0_21265-21df_abs20:19:570
121450380irq/29-eth0_g0_13-21kworker/0:121:35:210
121450380irq/29-eth0_g0_13-21kworker/0:100:19:100
121450380irq/29-eth0_g0_13-21kworker/0:100:12:270
121450380irq/29-eth0_g0_121ksoftirqd/122:55:101
121450380irq/29-eth0_g0_121ksoftirqd/122:00:001
121450380irq/29-eth0_g0_11797-21swap21:55:030
121550370irq/30-eth0_g0_4706-21grep19:10:070
121550370irq/30-eth0_g0_4435-21ntp_kernel_err19:10:031
121450370irq/29-eth0_g0_8298-21/usr/sbin/munin21:39:560
121450370irq/29-eth0_g0_25982-21df22:54:570
121450370irq/29-eth0_g0_19805-21/usr/sbin/munin22:30:070
121450370irq/29-eth0_g0_1920-21runrttasks20:38:030
121450370irq/29-eth0_g0_17803-21netstat20:05:040
121450370irq/29-eth0_g0_13-21kworker/0:123:15:250
121450370irq/29-eth0_g0_13-21kworker/0:122:22:160
121450370irq/29-eth0_g0_13-21kworker/0:121:15:160
121450370irq/29-eth0_g0_12867-21ntp_states22:00:040
121450370irq/29-eth0_g0_0-21swapper/022:18:480
121450370irq/29-eth0_g0_0-21swapper/021:45:010
121370ksoftirqd/1121550irq/30-eth0_g0_21:51:580
121550360irq/30-eth0_g0_1221-21kworker/1:221:10:571
121550360irq/30-eth0_g0_0-21swapper/123:04:481
121450360irq/29-eth0_g0_6622-21df_abs19:19:580
121450360irq/29-eth0_g0_4545-21latency_hist21:24:470
121450360irq/29-eth0_g0_1920-21runrttasks20:51:170
121450360irq/29-eth0_g0_17469-21runrttasks00:30:150
121450360irq/29-eth0_g0_17469-21runrttasks00:30:150
121450360irq/29-eth0_g0_16483-21irqstats20:00:030
121450360irq/29-eth0_g0_16483-21irqstats20:00:030
121450360irq/29-eth0_g0_1615-21unixbench_singl21:10:090
121450360irq/29-eth0_g0_13805-21/usr/sbin/munin19:50:000
121450360irq/29-eth0_g0_13-21kworker/0:122:28:310
121450360irq/29-eth0_g0_13-21kworker/0:121:31:240
121450360irq/29-eth0_g0_13-21kworker/0:100:26:550
121450360irq/29-eth0_g0_11022-21ntp_states00:05:040
121360ksoftirqd/1121550irq/30-eth0_g0_22:06:150
121550350irq/30-eth0_g0_0-21swapper/120:25:081
121450350irq/29-eth0_g0_5662-21seq19:15:070
121450350irq/29-eth0_g0_31562-21unixbench_multi21:00:080
121450350irq/29-eth0_g0_27356-21df_abs20:44:580
121450350irq/29-eth0_g0_24235-21grep20:30:090
121450350irq/29-eth0_g0_0-21swapper/020:10:050
396699342cyclictest121550irq/30-eth0_g0_22:36:591
121550340irq/30-eth0_g0_31566-21sed21:00:081
121550340irq/30-eth0_g0_21689-21mailstats20:20:061
121550340irq/30-eth0_g0_0-21swapper/120:00:031
121550340irq/30-eth0_g0_0-21swapper/120:00:031
121450340irq/29-eth0_g0_7861-21df_inode19:24:590
121450340irq/29-eth0_g0_32547-21ntp_states21:05:040
121450340irq/29-eth0_g0_20333-21/usr/sbin/munin20:15:050
121450340irq/29-eth0_g0_0-21swapper/019:41:460
121550330irq/30-eth0_g0_25404-21timerandwakeup20:35:081
121550330irq/30-eth0_g0_15572-21mailstats19:55:061
121550330irq/30-eth0_g0_15572-21mailstats19:55:061
121550330irq/30-eth0_g0_0-21swapper/119:51:481
121550330irq/30-eth0_g0_0-21swapper/119:34:331
121450330irq/29-eth0_g0_26338-21sed20:40:020
121550320irq/30-eth0_g0_26577-21/usr/sbin/munin20:40:061
121450320irq/29-eth0_g0_28759-21memory20:50:001
121550310irq/30-eth0_g0_20320-21open_files20:15:051
121550310irq/30-eth0_g0_1920-21runrttasks19:15:191
121550300irq/30-eth0_g0_10801-21unixbench_multi19:35:071
121550290irq/30-eth0_g0_27885-21unixbench_multi20:45:071
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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