You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-08-30 - 00:49

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 #f, slot #4

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: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackfslot4s.osadl.org (updated Fri Aug 29, 2025 12:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2612721270,3chrt26128-21grep12:25:370
924721200,2chrt9248-21sleep10:56:060
897521160,2chrt8974-21cut07:55:240
2406321150,2chrt24061-21/usr/sbin/munin09:26:370
329721120,3chrt3300-21grep10:45:550
2885821100,2chrt28859-21sleep07:30:500
30121070,2chrt302-21sleep11:39:040
187312890,2sleep018729-21open_files09:17:160
277672880,1sleep027768-21ssh11:30:230
39922780,1sleep03990-21aten2.4-expect07:45:260
18228907317,48cyclictest29871-21ssh10:35:480
1822890725,48cyclictest28091-21ntp_states10:31:490
18228907211,51cyclictest32028-21irqrtprio12:36:060
1822890715,56cyclictest7948-21ssh09:56:200
18228907112,52cyclictest29628-21sort08:35:410
1822890707,53cyclictest20779-21ssh11:16:540
1822890707,52cyclictest18349-21apt-get07:10:190
1822890707,52cyclictest11103-21apt-get11:00:250
1822890706,54cyclictest25547-21ssh10:27:320
1822890705,55cyclictest800-21apt-get11:40:200
1822890705,54cyclictest31372-21apt-get09:40:270
1822890705,45cyclictest20065-21ntpq08:16:050
1822890705,44cyclictest10414-21ntp_states11:56:470
1822890704,55cyclictest4429-21/usr/sbin/munin09:52:120
1822890704,55cyclictest31227-21/usr/sbin/munin07:35:270
1822890704,55cyclictest19136-21ssh12:12:230
1822890704,46cyclictest15649-21users11:07:250
18228907015,45cyclictest30067-21ld09:37:260
94272690,1sleep09424-21aten2.4_rfpower09:00:240
1822890696,54cyclictest6793-21ntpq10:51:380
1822890695,54cyclictest29747-21ssh12:31:340
1822890695,54cyclictest11428-21/usr/sbin/munin08:00:400
1822890694,55cyclictest1823-21aten2.4_rfpower09:45:330
1822890694,44cyclictest2823-21ntpq08:46:050
18228906917,43cyclictest7596-21ntpq11:51:410
18228906915,45cyclictest6787-21/usr/sbin/munin08:55:360
18228906915,45cyclictest22176-21irqrtprio10:21:080
18228906914,44cyclictest14119-21ssh10:06:360
1822890686,51cyclictest25636-21apt-get09:30:240
1822890686,42cyclictest20051-21apt-get09:20:160
1822890685,47cyclictest14451-21ssh09:10:240
1822890684,55cyclictest3946-21ssh11:45:420
1822890684,55cyclictest24059-21ld12:21:170
1822890684,46cyclictest859-21snmpd10:16:340
1822890684,44cyclictest12995-21ntpq12:01:230
18228906814,46cyclictest12018-21sleep10:02:390
18228906814,44cyclictest31748-21aten2.4_rfpower08:40:280
1822890676,42cyclictest20265-21cut12:15:300
1822890675,53cyclictest7406-21ntpq07:51:030
1822890675,53cyclictest32480-21apt-get10:40:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional