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2025-12-07 - 01:32

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, 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: 50.5 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rack5slot7s.osadl.org (updated Sat Dec 06, 2025 12:45:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30711224382198,98sleep00-21swapper07:09:320
308099917519,128cyclictest7410-21apt-get08:00:330
308099917317,127cyclictest27752-21apt-get10:05:250
308099916220,114cyclictest5213-21diskstats11:05:330
308099916119,117cyclictest5800-21df07:50:450
30809991599,122cyclictest6637-21sshd07:55:430
308099915817,25cyclictest31616-21munin-node07:15:090
308099915816,100cyclictest13892-21munin-run08:40:030
308099915815,99cyclictest4307-21apt-get11:00:140
308099915716,115cyclictest1944-21/usr/sbin/munin07:27:030
308099915714,119cyclictest2176-21awk10:45:460
308099915615,116cyclictest6979-21grep11:15:480
308099915613,117cyclictest4737-21cstates07:45:250
308099915512,116cyclictest19069-21cat09:10:470
308099915413,116cyclictest15276-21awk08:46:000
308099915413,100cyclictest18104-21munin-run12:25:000
308099915330,32cyclictest9171-21apt-get08:10:130
308099915318,112cyclictest8434-21df_inode11:25:440
308099915317,112cyclictest13087-21munin-run08:35:020
308099915315,113cyclictest19112-21diskstats12:30:350
308099915314,98cyclictest17651-21find09:01:000
308099915314,27cyclictest31786-21df_inode07:15:150
308099915313,113cyclictest11428-21cron11:45:010
308099915310,120cyclictest3962-21df07:40:260
308099915227,22cyclictest28708-21apt-get10:10:200
308099915213,26cyclictest25002-21awk09:46:000
308099915213,114cyclictest25688-21sendmail_mailqu09:50:560
308099915212,25cyclictest11392-21sort08:21:020
308099915210,120cyclictest6139-21memory11:10:430
308099915117,26cyclictest30233-21sendmail-msp10:20:030
308099915115,96cyclictest3323-21grep10:51:050
308099915114,24cyclictest13832-21apt12:00:010
308099915114,22cyclictest14634-21sshd12:03:430
308099915113,116cyclictest10680-21munin-run08:20:030
308099915112,99cyclictest23548-21munin-run09:40:030
308099915112,119cyclictest15446-21apt-get12:11:130
308099915111,116cyclictest17090-21cron09:00:000
308099915026,103cyclictest19800-21apt-get12:35:290
308099915024,109cyclictest11543-1kworker/u3:412:15:180
308099915022,100cyclictest30334-21apt-get10:20:210
308099915019,108cyclictest1197-21df_inode10:40:330
308099915018,108cyclictest31863-21snmpd12:28:210
308099915017,111cyclictest21941-21apt09:30:010
308099915015,25cyclictest11712-21irqstats11:45:420
308099915015,23cyclictest10625-21munin-run11:40:010
308099915015,110cyclictest26053-21/usr/sbin/munin09:55:460
308099915012,98cyclictest3734-21cron07:40:010
308099915012,114cyclictest7823-21awk11:20:490
30809991499,117cyclictest32136-21cat10:30:430
308099914936,93cyclictest31496-21proc_pri10:25:550
308099914929,101cyclictest27571-21cron10:05:010
308099914911,22cyclictest9539-21awk11:30:560
308099914911,115cyclictest24313-21unixbench_singl09:41:040
30809991488,118cyclictest12973-21head11:51:040
308099914821,26cyclictest2351-21diskstats07:30:410
308099914814,113cyclictest14249-21memory08:40:430
308099914812,111cyclictest3801-21ntpq10:55:560
308099914811,25cyclictest22533-21cut09:31:030
308099914729,19cyclictest15446-21apt12:10:010
308099914718,25cyclictest16263-21users08:51:090
308099914714,25cyclictest19615-21/usr/sbin/munin09:15:380
308099914711,26cyclictest1168-21apt-config07:25:080
308099914626,96cyclictest20814-21ps09:20:530
308099914613,22cyclictest12358-21sort08:30:040
308099914610,113cyclictest18393-21ps09:05:550
308099914517,103cyclictest507-21memory10:35:440
308099914414,108cyclictest8478-21df_inode08:05:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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