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2024-04-20 - 00:07

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #2, 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.

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 rack2slot7s.osadl.org (updated Fri Apr 19, 2024 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2086993995538,14cyclictest2180611-21munin-plugin-st10:25:052
2086991995428,23cyclictest2281865-21unixbench_multi12:35:370
2086993995324,7cyclictest2273549-21needreboot12:25:242
2086991995331,19cyclictest2111603-21cron08:25:050
2086993995121,8cyclictest2104433-21ntp_kernel_pll_08:00:322
2086991995126,22cyclictest2191571-21sh10:39:240
2086993995026,5cyclictest2116472-21unixbench_singl08:35:332
2086993995020,8cyclictest2110982-21ntp_kernel_err08:20:232
2086992995032,14cyclictest2157536-21unixbench-2d09:50:361
208699299472,16cyclictest2247510-21ntpq11:50:291
2086991994720,5cyclictest412-21avahi-daemon08:05:310
2086993994622,5cyclictest2207352-21tr11:00:222
208699299462,11cyclictest435-21mta-sts-daemon12:15:261
208699299462,11cyclictest435-21mta-sts-daemon12:15:261
2086991994634,8cyclictest2270030-21mailstats12:20:360
2086993994522,4cyclictest876-21mta-sts-daemon12:15:172
2086993994522,4cyclictest876-21mta-sts-daemon12:15:172
208699199454,16cyclictest2131143-21rm09:15:270
2086991994524,18cyclictest0-21swapper/010:25:180
2086992994425,16cyclictest2204766-21unixbench-2d10:55:341
208699299441,15cyclictest2171972-21ntpq10:10:291
2086991994420,3cyclictest0-21swapper/012:25:190
208699299432,33cyclictest2193239-21ssh10:40:321
208699299421,13cyclictest2200616-21ntpq10:50:271
2086991994220,3cyclictest0-21swapper/010:40:340
2086991994215,7cyclictest2202652-21sshd10:53:560
2086991994214,7cyclictest2145816-21missed_timers09:35:210
2086993994132,5cyclictest2109993-21systemd-run08:20:062
2086993994132,5cyclictest2109993-21systemd-run08:20:062
2086992994122,16cyclictest2110572-21fschecks_time08:20:181
208699299412,13cyclictest2126978-21diskstats09:10:191
2086992994114,23cyclictest2134536-21fschecks_time09:20:181
208699299411,15cyclictest2258935-21ntpq12:05:401
208699299411,13cyclictest2088095-21ntpq07:10:281
208699299411,11cyclictest2089643-21/usr/sbin/munin07:15:271
208699299411,10cyclictest2220326-21ssh11:15:451
208699299411,10cyclictest2220326-21ssh11:15:451
2086991994132,5cyclictest2102386-21gltestperf07:55:220
208699199413,16cyclictest2227891-21ssh11:25:290
208699299407,4cyclictest2234668-21ssh11:35:041
208699299402,6cyclictest2092953-21ntpq07:25:241
2086992994021,16cyclictest2208253-21unixbench-2d11:00:391
208699299401,9cyclictest2115366-21df08:35:151
2086992994015,22cyclictest2099128-21gltestperf07:45:181
208699299401,13cyclictest2175190-21ssh10:16:071
208699299401,13cyclictest2133198-21ssh09:18:371
208699299401,12cyclictest2277505-21ntpq12:30:281
208699299401,12cyclictest2262737-21ntpq12:10:291
208699299401,12cyclictest2154354-21ssh09:46:081
208699299401,11cyclictest2227757-21ntpq11:25:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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