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2024-05-26 - 07:18

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #6

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 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: 50 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 rack4slot6s.osadl.org (updated Sun May 26, 2024 00:44:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2838623030,3sleep028389-21cron23:10:000
2774821410,2sleep027747-21proc_pri21:00:260
1408221320,3chrt14081-21ls00:20:020
575321300,3chrt5754-21run-parts21:40:300
138921280,4chrt1387-21grep19:20:090
911921260,3chrt9120-21interrupts00:00:170
292621230,3chrt2927-21missed_timers21:30:240
31143991209,18cyclictest16683-21sshd20:18:210
31143991209,17cyclictest13097-21/usr/sbin/munin20:05:330
311439912018,13cyclictest24607-21sshd20:49:220
311439911910,17cyclictest5161-21munin-run21:40:010
821821170,2sleep08217-21proc_pri21:50:280
311439911711,15cyclictest7533-21sshd21:48:220
311439911710,17cyclictest4531-21sshd23:41:220
31143991168,17cyclictest269-21runrttasks23:04:490
31143991168,17cyclictest10704-21tr00:05:330
31143991167,15cyclictest9720-21/usr/sbin/munin21:55:340
311439911615,13cyclictest32398-21/usr/sbin/munin23:25:130
31143991158,19cyclictest6418-21tr19:40:020
31143991158,16cyclictest24062-21sshd22:51:210
31143991158,16cyclictest2132-21sshd21:26:210
31143991158,15cyclictest32747-21cat19:15:210
31143991157,15cyclictest29117-21/usr/sbin/munin21:05:290
311439911510,18cyclictest15525-21seq20:14:300
31143991149,15cyclictest31401-21if_eth021:15:170
31143991149,14cyclictest12258-21sshd00:11:200
31143991148,17cyclictest30534-21cat21:10:300
31143991148,16cyclictest6455-21df_inode23:50:170
31143991148,16cyclictest32255-21seq19:13:530
31143991148,16cyclictest20500-21runrttasks22:38:570
31143991146,15cyclictest3884-21sort19:30:020
31143991139,17cyclictest11875-21if_eth022:05:180
31143991139,15cyclictest29794-21/usr/sbin/munin23:15:180
31143991138,16cyclictest14186-21latency_hist22:15:010
31143991138,14cyclictest17073-21proc_pri00:30:290
31143991138,13cyclictest162602sleep022:20:420
31143991137,17cyclictest22934-21runrttasks20:41:050
31143991137,15cyclictest19193-21sendmail-msp00:40:000
311439911310,15cyclictest8116-21ntp_states19:45:260
31143991129,22cyclictest743-21users21:20:350
31143991129,15cyclictest7729-21df_inode23:55:140
31143991129,15cyclictest2433-21latency_hist23:35:020
31143991129,12cyclictest9874-21seq19:50:530
31143991128,15cyclictest2553-21df23:35:090
31143991127,14cyclictest18393-21sshd22:30:220
31143991126,18cyclictest6789-21grep19:40:170
31143991126,16cyclictest10567-21df19:55:130
311439911224,15cyclictest22067-21/usr/sbin/munin22:45:130
311439911224,15cyclictest19390-21seq20:28:500
31143991119,12cyclictest21407-21vmstat22:40:380
311439911121,14cyclictest19949-21ntp_states20:30:200
311439911110,12cyclictest15312-21munin-run00:25:000
31143991108,14cyclictest24817-21/usr/sbin/munin20:50:130
31143991108,14cyclictest17215-21ntp_states22:25:250
31143991108,13cyclictest29137-21seq23:10:370
31143991107,16cyclictest10519-21df_inode22:00:130
31143991106,16cyclictest5191-21idleruntime23:45:170
311439911012,19cyclictest4146-21memory19:30:210
311439911011,13cyclictest14371-21df_inode22:15:140
311439911010,15cyclictest12101-21ntp_states20:00:240
31143991099,25cyclictest31965-21seq23:22:270
311439910910,15cyclictest21448-21chrt20:35:300
311439910910,15cyclictest15429-21/usr/sbin/munin00:25:200
311439910910,14cyclictest25805-21munin-run23:00:020
311439910810,18cyclictest17101-21df20:20:130
311439910710,17cyclictest27249-21cron21:00:010
31143991028,14cyclictest31199-21sed19:10:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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