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2025-04-11 - 23:12

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 792 highest latencies:
System rack5slot7s.osadl.org (updated Fri Apr 11, 2025 12:45:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12433224222195,84sleep00-21swapper07:09:290
125339917119,27cyclictest6339-21apt-get09:55:280
125339916114,123cyclictest268-21snmpd12:00:580
125339915837,23cyclictest16619-21latency_hist11:15:040
125339915819,110cyclictest25363-21apt-get12:20:200
125339915812,26cyclictest6287-21cat09:55:080
125339915618,111cyclictest18013-21apt-get07:40:200
125339915617,39cyclictest1006-21sshd09:15:200
125339915612,27cyclictest26910-21grep12:30:580
125339915434,24cyclictest9374-21awk10:15:500
125339915417,22cyclictest8968-21munin-run10:15:010
125339915417,21cyclictest14416-21users07:16:220
125339915415,114cyclictest23888-21tr08:15:490
125339915413,116cyclictest13336-21munin-node07:15:080
125339915319,29cyclictest16401-21/usr/sbin/munin07:31:180
125339915318,20cyclictest28347-21apt-get08:45:510
125339915317,23cyclictest15280-21apt-get07:25:520
125339915315,114cyclictest20389-21apt-get07:55:210
125339915312,119cyclictest15118-21sort07:20:560
125339915311,102cyclictest24372-21grep12:11:150
125339915241,90cyclictest32621-21latency_hist09:10:050
125339915238,91cyclictest4140-21timerwakeupswit09:36:030
125339915219,106cyclictest24417-21apt-get08:20:180
125339915213,22cyclictest17893-21munin-run07:40:040
125339915141,23cyclictest25166-21unixbench_singl12:16:010
125339915136,20cyclictest27559-21mailstats12:35:590
125339915117,114cyclictest18210-21munin-run11:25:020
125339915115,35cyclictest19892-21awk07:50:510
125339915114,96cyclictest19928-21munin-run11:40:030
125339915114,112cyclictest22463-21munin-run12:00:010
125339915112,113cyclictest7984-21grep10:01:080
125339915038,90cyclictest4836-21mailstats09:41:040
125339915012,23cyclictest10368-21mailstats10:21:000
12533991497,24cyclictest26657-21grep08:31:070
125339914937,23cyclictest18613-21kernelversion11:30:420
125339914916,23cyclictest30375-21diskstats08:55:320
125339914915,19cyclictest27657-21apt-get08:40:220
125339914912,25cyclictest27450-21sed08:36:080
125339914911,116cyclictest878-21vmstat09:11:120
125339914815,21cyclictest14978-21apt-get11:00:210
125339914814,111cyclictest29900-21find08:51:060
125339914813,24cyclictest14838-21cron11:00:010
125339914811,115cyclictest22546-21wc08:06:000
125339914810,114cyclictest26183-21latency_hist12:30:000
125339914716,104cyclictest21208-21apt-get08:00:150
125339914715,31cyclictest19119-21ntpq07:45:500
125339914714,23cyclictest1938-21df_inode09:20:290
125339914713,113cyclictest20672-21grep11:41:020
125339914713,110cyclictest5406-21cron09:50:010
125339914712,36cyclictest21661-21munin-run11:55:010
125339914614,27cyclictest12436-21/usr/sbin/munin10:40:520
125339914613,109cyclictest13355-21/usr/sbin/munin10:50:450
125339914529,23cyclictest10919-21df10:30:210
125339914518,102cyclictest23036-21memory08:10:470
125339914515,29cyclictest3308-21wc09:31:040
125339914511,112cyclictest25255-21apt-get08:25:210
12533991449,111cyclictest10728-21grep10:30:030
125339914434,89cyclictest13344-21cat10:50:050
125339914428,22cyclictest0-21swapper09:00:180
125339914413,28cyclictest20852-21cron11:50:010
125339914410,113cyclictest16758-21wc11:15:230
125339914410,109cyclictest11792-21irqstats10:35:410
125339914313,25cyclictest2649-21munin-run09:30:030
12533991423,117cyclictest15859-21wc11:10:040
12533991409,106cyclictest18326-21modprobe11:30:010
125339913912,27cyclictest8148-21sshd10:06:210
125339913712,26cyclictest23648-21latency_hist12:10:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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