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2024-04-19 - 17:29

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #7

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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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Note that this system runs a non-RT kernel.
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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackbslot7s.osadl.org (updated Fri Apr 19, 2024 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21450247714,444sleep021584-21unixbench_singl22:12:110
2941242421,384sleep23032-21/usr/sbin/munin19:32:182
18975234131,29sleep00-21swapper/023:47:050
16593233833,192sleep016596-21cron20:16:380
21620231412,284sleep121667-40ogrotate23:56:391
21620231412,284sleep121667-40ogrotate23:56:391
21265229520,258sleep221287-21awk20:31:392
13625228916,253sleep213756-21grep21:47:102
13175228717,253sleep213267-21/usr/sbin/munin23:27:242
30895228112,253sleep330939-21unin-run21:01:403
7315225610,233sleep07366-21sort19:46:540
30457225544,144sleep00-21swapper/000:22:270
7518225111,228sleep00-21swapper/023:12:000
7518225111,228sleep00-21swapper/023:12:000
23509225013,178sleep00-21swapper/000:02:030
217742243105,27sleep021805-21sed23:56:420
217742243105,27sleep021805-21sed23:56:420
9652224299,22sleep00-21swapper/021:36:420
9652224299,22sleep00-21swapper/021:36:420
2879222915,197sleep02618-21/usr/sbin/munin19:32:160
27941222014,189sleep328016-21/usr/sbin/munin22:32:133
11498221626,172sleep0373-21sshd19:59:020
8039221527,171sleep18116-21timerandwakeup23:12:131
8039221527,171sleep18116-21timerandwakeup23:12:131
29731221542,121sleep029867-21latency_hist00:21:420
28694221595,76sleep028697-21cron22:36:390
19880219966,83sleep020020-21unixbench_multi22:07:150
3095621969,146sleep031000-21ntp_offset22:42:040
5759218050,24sleep00-21swapper/021:22:120
5759218050,24sleep00-21swapper/021:22:120
28423216727,125sleep028475-21vmstat19:11:450
9933216417,129sleep39965-21fschecks_count21:36:573
3144216229,119sleep03169-21awk22:57:020
27025216122,41sleep327184-21latency_hist22:31:413
31609215937,67sleep00-21swapper/021:02:050
1498215752,64sleep00-21swapper/000:32:120
2173214944,49sleep00-21swapper/021:11:590
2173214944,49sleep00-21swapper/021:11:590
1176214710,27sleep00-21swapper/022:51:490
31831214315,109sleep00-21swapper/019:21:550
2543321437,99sleep025582-21sed22:26:410
15843214110,116sleep115446-21/usr/sbin/munin23:37:051
11494213956,60sleep00-21swapper/021:41:590
1810221376,118sleep00-21swapper/023:44:270
155602136104,19sleep015607-21fschecks_count23:37:000
9969213339,62sleep00-21swapper/021:36:580
885721318,82sleep00-21swapper/019:51:510
9611213024,85sleep39650-21latency_hist21:36:413
9611213024,85sleep39650-21latency_hist21:36:413
2804721299,84sleep028065-21kernelversion20:52:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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