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2025-12-28 - 02:08

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 the highest latencies:
System rack5slot7s.osadl.org (updated Sat Dec 27, 2025 12:45:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7647224542195,98sleep00-21swapper07:07:040
80199916229,114cyclictest289-21snmpd07:22:070
80199915918,25cyclictest19893-21munin-run11:40:020
80199915818,25cyclictest29369-21grep09:16:030
80199915813,118cyclictest3616-21apt-get10:01:500
80199915716,100cyclictest9960-21munin-run07:20:040
80199915712,31cyclictest11963-21cstates07:30:220
80199915627,107cyclictest4771-21sshd10:05:210
80199915615,116cyclictest11979-21apt-get10:50:180
80199915614,24cyclictest2819-21munin-run09:55:020
80199915514,117cyclictest7181-21apt-get10:20:210
80199915510,121cyclictest10270-21munin-run10:40:010
80199915510,120cyclictest7972-21/usr/sbin/munin10:25:580
80199915426,23cyclictest18396-21/usr/sbin/munin11:30:220
80199915418,112cyclictest24322-21diskstats12:06:020
80199915413,52cyclictest15103-21/usr/sbin/munin07:50:240
80199915413,100cyclictest29665-21df_inode09:20:300
8019991539,120cyclictest19815-21munin-run08:20:020
80199915315,115cyclictest3621-21/usr/sbin/munin10:00:060
80199915315,113cyclictest26541-21munin-run12:20:020
80199915281,49cyclictest23402-21grep08:40:460
80199915238,22cyclictest26953-21unixbench_singl09:01:020
80199915215,114cyclictest28361-21diskstats12:30:310
80199915215,113cyclictest534-21apt-get09:40:210
80199915213,114cyclictest24990-21grep08:50:460
80199915212,40cyclictest17371-21/usr/sbin/munin08:01:030
80199915210,119cyclictest2023-21munin-plugin-st09:50:010
80199915131,98cyclictest18379-21wc08:10:250
80199915118,22cyclictest8825-21munin-node07:15:060
80199915117,38cyclictest382-21sshd09:39:200
80199915116,24cyclictest30250-21apt-get09:26:370
80199915113,98cyclictest6351-21apt-get10:15:210
80199915112,115cyclictest21900-21tr11:50:480
8019991509,27cyclictest29705-21find12:36:480
8019991509,24cyclictest20950-21grep08:25:420
80199915018,104cyclictest21522-21apt-get08:30:190
80199915010,25cyclictest13513-21/usr/sbin/munin07:41:070
80199915010,116cyclictest23256-21sshd12:00:220
80199914937,92cyclictest32149-21cat09:35:050
80199914922,100cyclictest14309-21apt-get07:45:190
80199914918,25cyclictest13594-21apt-get11:00:160
80199914912,114cyclictest28624-21apt09:15:000
80199914911,116cyclictest20159-21wc08:20:410
80199914910,23cyclictest14449-21/usr/sbin/munin11:05:220
80199914817,24cyclictest16810-21apt-get11:20:210
80199914814,25cyclictest10848-21mailstats10:40:580
80199914813,95cyclictest16690-21munin-run11:20:020
80199914812,114cyclictest16602-21munin-run08:00:020
80199914810,116cyclictest27428-21grep09:05:470
8019991479,24cyclictest26221-21cat09:00:010
80199914719,104cyclictest22568-21irqstats11:55:390
80199914718,105cyclictest13396-21munin-run07:40:010
80199914713,108cyclictest8770-21/usr/sbin/munin10:30:240
80199914712,110cyclictest20807-21apt-get11:45:220
80199914711,26cyclictest15179-21/usr/sbin/munin11:10:240
80199914710,24cyclictest289-21snmpd11:00:010
80199914618,37cyclictest24046-21diskstats08:45:340
80199914613,27cyclictest25036-21/usr/sbin/munin12:10:420
80199914613,23cyclictest11252-21if_eth007:25:440
80199914612,110cyclictest22610-21ntp_kernel_pll_08:35:480
80199914610,112cyclictest4374-21kworker/u2:1110:10:130
8019991459,26cyclictest18128-21grep11:26:010
80199914516,24cyclictest26776-21diskstats12:20:350
80199914512,111cyclictest20239-21sort11:40:400
8019991449,22cyclictest17709-21cut08:05:420
80199914418,18cyclictest0-21swapper10:45:460
80199914215,104cyclictest27560-21df12:25:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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