You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-27 - 14:52

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 #b, slot #5

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
  Phytec
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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackbslot5s.osadl.org (updated Thu Nov 27, 2025 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4050051995428,22cyclictest4107521-21cat22:00:013
4050051995226,22cyclictest391ktimers/323:50:153
4050036995132,15cyclictest0-21swapper/022:20:010
4050046995043,4cyclictest4089620-21munin-plugin-st21:10:012
4050046994923,22cyclictest0-21swapper/220:55:232
4050036994925,20cyclictest0-21swapper/019:10:260
4050051994817,6cyclictest4071711-21fschecks_time20:10:183
4050039994835,10cyclictest231ktimers/123:35:121
4050036994839,6cyclictest4105333-21grep21:50:250
4050036994839,6cyclictest4105333-21grep21:50:250
4050051994719,7cyclictest4130140-21grep23:00:253
4050039994732,11cyclictest231ktimers/100:10:111
4050051994522,7cyclictest391ktimers/319:25:113
4050051994417,4cyclictest0-21swapper/322:05:253
4050046994427,12cyclictest0-21swapper/219:25:252
4050036994415,4cyclictest4158089-21latency_hist00:25:000
4050036994415,4cyclictest4158089-21latency_hist00:24:590
4050051994332,7cyclictest4150826-21grep00:00:253
4050051994331,8cyclictest4114979-21grep22:20:163
405004699432,4cyclictest4051956-21cut19:15:012
405004699431,9cyclictest4068421-21/usr/sbin/munin20:00:222
405003699438,6cyclictest0-21swapper/023:00:250
4050051994234,4cyclictest0-21swapper/322:20:013
405004699423,8cyclictest4120772-21/usr/sbin/munin22:35:192
4050046994230,7cyclictest0-21swapper/221:30:242
405004699421,9cyclictest4099327-21df_inode21:35:142
4050039994233,6cyclictest4053568-21unixbench_singl19:15:241
4050036994230,9cyclictest4112626-21cron22:15:010
4050036994218,20cyclictest0-21swapper/022:09:590
4050036994217,3cyclictest13950irq/36-mmc122:50:010
4050036994214,7cyclictest4073904-21which20:15:260
4050036994213,3cyclictest0-21swapper/019:10:000
405004699412,6cyclictest4070363-21ntp_states20:05:212
405004699411,8cyclictest4151138-21cron00:04:002
4050036994117,20cyclictest0-21swapper/022:55:150
4050036994114,3cyclictest0-21swapper/000:30:170
4050051994033,4cyclictest4123529-21idleruntime-cro22:45:013
405004699402,5cyclictest4146796-21memory23:50:232
405004699402,4cyclictest4106637-21/usr/sbin/munin21:55:222
405004699401,9cyclictest4158869-21ntp_states00:25:222
405004699401,9cyclictest4083358-21irqstats20:50:172
405004699401,8cyclictest4061833-21/usr/sbin/munin19:40:232
405004699401,7cyclictest4123115-21/usr/sbin/munin22:40:232
405004699401,6cyclictest4094290-21/usr/sbin/munin21:20:202
405004699401,6cyclictest4092094-21/usr/sbin/munin21:15:162
4050046994012,24cyclictest0-21swapper/222:25:272
405004699401,10cyclictest4157167-21ntp_states00:20:212
405004699401,10cyclictest4157167-21ntp_states00:20:212
405004699401,10cyclictest4134991-21open_inodes23:15:222
405003699401,9cyclictest4142896-21sed23:40:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional