You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2025-12-31 - 07:54

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 #4, slot #1

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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack4slot1s.osadl.org (updated Wed Dec 31, 2025 00:44:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
77502910,3sleep30-21swapper/321:45:353
77502910,3sleep30-21swapper/321:45:353
254762860,3sleep30-21swapper/321:05:393
215382780,3chrt0-21swapper/219:30:302
13432780,3chrt1345-21threads20:00:401
13432780,3chrt1345-21threads20:00:401
316342680,2sleep20-21swapper/200:15:372
316342680,2sleep20-21swapper/200:15:372
316342680,2sleep20-21swapper/200:15:372
283032660,2sleep2351rcuc/222:40:332
283032660,2sleep2351rcuc/222:40:332
63492650,2chrt0-21swapper/221:40:392
63492650,2chrt0-21swapper/221:40:392
235002590,3sleep30-21swapper/321:00:363
14107995852,3cyclictest0-21swapper/000:00:260
14107995852,3cyclictest0-21swapper/000:00:260
14107995852,3cyclictest0-21swapper/000:00:260
127522580,3chrt0-21swapper/120:30:431
280972550,3sleep20-21swapper/200:05:402
197182540,3sleep30-21swapper/322:15:423
197182540,3sleep30-21swapper/322:15:423
307102530,2sleep30-21swapper/322:45:413
307102530,2sleep30-21swapper/322:45:413
182382490,3chrt0-21swapper/319:20:343
182382490,3chrt0-21swapper/319:20:343
266642470,1sleep00-21swapper/000:00:480
266642470,1sleep00-21swapper/000:00:480
1411099471,30cyclictest28950-21latency_hist19:50:261
1411099464,32cyclictest25969-21memory00:00:361
1411099464,32cyclictest25969-21memory00:00:361
8922450,3sleep00-21swapper/000:20:340
8922450,3sleep00-21swapper/000:20:340
269792450,2sleep30-21swapper/319:45:223
269792450,2sleep30-21swapper/319:45:223
1411099451,31cyclictest8075-21taskset23:12:231
1411099451,31cyclictest8075-21taskset23:12:231
217592440,3sleep00-21swapper/019:30:320
202482430,3sleep20-21swapper/223:45:342
202482430,3sleep20-21swapper/223:45:342
1411099421,28cyclictest15753-21taskset23:34:501
1411099421,28cyclictest15753-21taskset23:34:501
1411099420,29cyclictest2939-21/usr/sbin/munin21:30:431
1411099420,29cyclictest2939-21/usr/sbin/munin21:30:431
103892420,3sleep30-21swapper/320:25:343
326062410,1sleep1346-21unixbench_singl22:50:421
326062410,1sleep1346-21unixbench_singl22:50:421
278412410,2sleep127844-21missed_timers00:05:351
272612410,3sleep00-21swapper/000:05:300
148632410,1sleep10-21swapper/122:05:311
148632410,1sleep10-21swapper/122:05:311
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional