You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-18 - 03:45

OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

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 
Special  All - All RT - Optimization - Ethernet - Thumbnails - Next
  
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 Thu Jun 18, 2026 00:45:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16399224472212,90sleep00-21swapper19:09:560
164499916532,112cyclictest8908-21latency_hist21:40:010
164499916018,118cyclictest8905-21apt-get21:41:130
164499916017,22cyclictest22735-21apt-get19:45:180
164499915917,117cyclictest11548-21apt-get21:56:350
164499915818,46cyclictest16427-21apt-get19:11:320
164499915817,25cyclictest14398-21df22:10:280
164499915816,38cyclictest3296-21apt21:05:020
164499915715,116cyclictest31032-21apt-get20:35:190
164499915712,122cyclictest1886-21df_inode20:55:270
164499915633,99cyclictest28981-21grep23:40:060
164499915611,23cyclictest22360-21grep19:40:570
164499915530,101cyclictest0-21swapper23:45:070
164499915522,29cyclictest30817-21apt-get23:50:280
164499915519,25cyclictest23934-21apt-get23:10:170
164499915518,26cyclictest16625-21munin-run22:25:010
164499915517,22cyclictest27219-21apt-get23:30:250
164499915511,118cyclictest18190-21awk22:31:080
164499915433,22cyclictest22628-21ntpq23:00:460
164499915418,112cyclictest22227-21munin-run23:00:020
164499915416,21cyclictest15091-21apt-get22:15:180
164499915415,39cyclictest32554-21/usr/sbin/munin00:00:360
164499915415,111cyclictest28414-21apt-get20:20:200
164499915414,19cyclictest26786-21apt-get20:10:140
164499915324,27cyclictest9690-1kworker/u3:421:45:110
164499915315,116cyclictest8106-21munin-run21:35:010
164499915314,116cyclictest30235-21memory23:46:200
164499915314,113cyclictest20562-21head22:46:050
164499915313,114cyclictest29106-21apt-get20:26:490
164499915211,116cyclictest6919-21awk21:25:480
16449991519,119cyclictest25495-21grep20:00:480
164499915118,27cyclictest6515-21munin-run21:25:020
164499915118,109cyclictest21819-21munin-run19:40:030
164499915115,113cyclictest3073-21munin-run00:20:020
164499915111,117cyclictest1138-21wc00:05:560
164499915028,19cyclictest0-21swapper19:30:550
164499915013,112cyclictest26421-21wc20:05:550
164499915012,29cyclictest25560-21apt23:20:110
164499915011,99cyclictest32472-21grep20:41:040
164499914921,27cyclictest17896-21users19:15:250
164499914918,25cyclictest17418-21munin-run22:30:000
164499914917,35cyclictest0-21swapper00:25:000
164499914916,111cyclictest11550-21munin-run21:55:030
164499914915,24cyclictest6283-21munin-run00:40:030
164499914913,112cyclictest26896-21grep23:26:000
164499914911,115cyclictest23832-21apt23:09:590
164499914910,97cyclictest5355-21grep21:15:530
164499914843,85cyclictest25176-21mailstats23:15:560
164499914830,20cyclictest12707-21sshd22:00:190
164499914820,102cyclictest18846-21diskstats19:20:360
164499914816,20cyclictest0-21swapper23:56:160
164499914816,106cyclictest13496-21/usr/sbin/munin22:05:500
164499914815,39cyclictest19019-21munin-run22:40:030
164499914813,25cyclictest982-21/usr/sbin/munin20:51:090
164499914811,113cyclictest5425-21sed00:31:010
164499914732,95cyclictest2189-21head00:11:020
164499914710,23cyclictest4136-21latency_hist21:10:040
164499914618,26cyclictest25072-21apt20:00:010
164499914618,26cyclictest19139-21apt-get22:40:180
164499914614,22cyclictest32648-21apt-get20:45:180
164499914522,102cyclictest30236-21apt20:30:100
164499914519,20cyclictest19842-21ntp_states19:25:500
164499914511,107cyclictest4189-21/usr/sbin/munin21:10:230
164499914510,98cyclictest8739-21snmpd19:50:560
164499914418,24cyclictest20901-21irqstats22:50:390
164499914412,107cyclictest27577-21/usr/sbin/munin20:15:510
164499914312,25cyclictest4147-21/usr/sbin/munin00:25:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional