You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-20 - 05:43

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 highest latencies:
System rack5slot7s.osadl.org (updated Mon Jul 20, 2026 00:45:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12551224412200,99sleep00-21swapper19:07:430
128529916914,129cyclictest18241-21timerwakeupswit22:56:010
128529916020,114cyclictest21454-21diskstats20:00:310
128529915933,88cyclictest12784-21systemd-journal19:20:010
128529915917,117cyclictest13327-21apt-get22:30:530
128529915811,122cyclictest24664-21modprobe20:20:010
128529915715,116cyclictest12340-21apt-get22:22:010
128529915640,93cyclictest16031-21ntp_states19:25:520
128529915625,104cyclictest30053-21diskstats00:10:340
128529915613,24cyclictest8257-21apt22:00:020
128529915612,120cyclictest6875-21diskstats21:50:330
12852991559,121cyclictest4202-21grep21:31:060
128529915533,21cyclictest0-21swapper20:35:480
128529915528,19cyclictest0-21swapper22:41:000
128529915522,29cyclictest22170-21memory23:20:440
128529915517,24cyclictest15023-21df_inode19:20:300
128529915516,119cyclictest14555-21df22:35:310
12852991549,120cyclictest20940-21grep19:55:590
128529915415,24cyclictest21205-21df_inode23:15:310
128529915415,115cyclictest18360-21apt-get23:00:530
128529915414,33cyclictest20305-21apt-get23:10:170
128529915414,24cyclictest25021-21munin-run23:40:020
128529915412,24cyclictest4821-21awk21:35:590
128529915316,112cyclictest703-21apt-get00:30:190
128529915314,115cyclictest16507-21apt-get19:30:140
12852991529,121cyclictest17555-21modprobe22:55:010
128529915220,29cyclictest23637-21diskstats23:30:350
128529915217,24cyclictest23423-21munin-run23:30:010
128529915214,97cyclictest22239-21df20:05:310
128529915214,38cyclictest26838-21df_inode23:50:300
128529915214,24cyclictest20415-21apt19:55:010
128529915214,115cyclictest10143-21irqstats22:10:380
128529915214,114cyclictest30383-21apt-get20:55:190
128529915212,118cyclictest30281-21apt20:55:010
128529915211,21cyclictest19013-21expr19:45:220
128529915121,27cyclictest28348-21apt-get00:00:220
128529915119,23cyclictest16766-21apt22:50:010
128529915118,29cyclictest25451-21users20:21:140
128529915115,114cyclictest3455-21apt21:30:020
128529915115,112cyclictest23631-21munin-run20:15:010
128529915113,113cyclictest32680-21ntp_states00:25:500
128529915021,101cyclictest1377-21memory21:15:450
128529915015,24cyclictest6213-21memory21:45:440
128529915010,122cyclictest11541-21latency_hist22:20:070
128529914938,23cyclictest18106-21latency_hist19:40:080
128529914936,91cyclictest26374-21awk23:45:570
128529914918,105cyclictest9289-21diskstats22:05:370
128529914911,119cyclictest5172-21/usr/sbin/munin21:40:110
128529914819,27cyclictest32002-21apt-get21:05:180
128529914818,35cyclictest0-21swapper00:20:030
128529914815,108cyclictest26379-21/usr/sbin/munin20:31:060
128529914813,113cyclictest27603-21wc23:55:220
12852991479,38cyclictest12784-21systemd-journal20:50:000
128529914718,27cyclictest31673-21df_inode00:20:290
128529914717,25cyclictest19622-21diskstats23:05:390
128529914716,107cyclictest451-21diskstats21:10:330
128529914713,25cyclictest13386-21awk19:10:560
128529914712,23cyclictest29776-21grep00:06:120
128529914621,99cyclictest25831-21memory20:25:450
128529914613,28cyclictest12629-21/usr/sbin/munin22:25:430
128529914612,110cyclictest28412-21/usr/sbin/munin20:40:550
128529914611,115cyclictest1741-21cat00:35:430
128529914511,112cyclictest12784-21systemd-journal23:42:310
128529914422,98cyclictest31309-21df21:00:310
128529914410,24cyclictest8382-21apt-get22:00:190
128529914316,103cyclictest18244-21diskstats19:40:340
128529914315,108cyclictest1963-21/usr/sbin/munin21:20:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional