You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-30 - 12:23

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 #e, slot #6

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
  TI
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 rackeslot6s.osadl.org (updated Tue Jun 30, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1909996995823,31cyclictest0-21swapper/020:20:280
1909996995820,35cyclictest1952843-21grep23:15:310
1910002995547,4cyclictest1950738-21fschecks_time23:05:212
1910002995344,5cyclictest1910800-21munin-plugin-st19:15:002
1909996995337,12cyclictest15-21rcuc/019:15:140
1909996995244,5cyclictest1966514-21unixbench_multi00:35:300
1910002995142,5cyclictest1934947-21apt-config21:35:012
1909999994937,9cyclictest1935847-21sendmail21:40:001
1909999994931,13cyclictest231ktimers/120:10:131
1909996994942,4cyclictest1961391-21unixbench_singl00:05:350
1909999994837,7cyclictest1943453-21munin-plugin-st22:24:591
1909996994840,4cyclictest20650irq/252-8000000.ethernet22:40:260
1909999994736,8cyclictest1945311-21munin-plugin-st22:35:011
1909999994736,8cyclictest1945311-21munin-plugin-st22:35:011
1909999994736,5cyclictest1912786-21munin-plugin-st19:25:001
1909999994729,13cyclictest0-21swapper/119:10:011
1910002994638,4cyclictest1955426-21grep23:30:282
1910002994637,4cyclictest0-21swapper/223:35:262
1909999994638,5cyclictest1929854-21munin-plugin-st21:05:011
1909996994635,8cyclictest0-21swapper/020:35:010
1909996994631,10cyclictest0-21swapper/022:30:010
1909996994631,10cyclictest0-21swapper/022:30:010
1909996994618,7cyclictest0-21swapper/022:40:010
1909996994538,4cyclictest167350irq/118-8000000.ethernet-tx022:20:150
1910002994434,6cyclictest1914378-21grep19:30:302
1910002994432,8cyclictest1946156-21sendmail22:39:592
1910002994431,9cyclictest1932378-21sendmail21:20:002
1909999994422,12cyclictest0-21swapper/120:50:311
190999999441,13cyclictest22-21rcuc/119:40:031
1910002994335,5cyclictest1963100-21grep00:15:272
1910002994335,5cyclictest1963100-21grep00:15:272
1910002994333,6cyclictest1951997-21grep23:10:272
1910002994333,6cyclictest1951997-21grep23:10:272
1910002994327,8cyclictest0-21swapper/200:05:352
1909999994332,8cyclictest1962406-21apt-key00:15:011
1909999994332,8cyclictest1962406-21apt-key00:15:001
1909999994330,8cyclictest0-21swapper/122:15:281
1909999994329,9cyclictest0-21swapper/123:05:291
1909999994327,8cyclictest0-21swapper/119:15:001
1909996994335,4cyclictest0-21swapper/022:15:010
1909996994331,8cyclictest0-21swapper/023:45:300
190999699431,9cyclictest1910935-21munin-node19:15:020
1910002994233,4cyclictest0-21swapper/220:05:292
1910002994233,4cyclictest0-21swapper/220:05:282
1910002994231,5cyclictest1966507-21grep00:35:302
1910002994227,9cyclictest0-21swapper/222:20:262
190999999425,15cyclictest0-21swapper/123:15:021
190999999425,15cyclictest0-21swapper/123:15:021
1909999994229,8cyclictest0-21swapper/100:09:591
1909999994228,9cyclictest0-21swapper/120:00:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional