You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-14 - 19:16

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 100 highest latencies:
System rack4slot1s.osadl.org (updated Fri Aug 14, 2026 12:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
442821050,2chrt4429-21/usr/sbin/munin09:44:120
191782970,3sleep30-21swapper/307:33:503
191782970,3sleep30-21swapper/307:33:503
271392910,4sleep0201rcuc/007:54:010
24192750,3sleep30-21swapper/311:08:493
24192750,3sleep30-21swapper/311:08:493
293642700,2sleep00-21swapper/007:59:070
293642700,2sleep00-21swapper/007:59:070
38902680,2chrt0-21swapper/112:38:561
317762670,3sleep20-21swapper/208:04:122
317762670,3sleep20-21swapper/208:04:122
305582600,3chrt0-21swapper/209:29:062
226722570,3chrt0-21swapper/211:59:132
226722570,3chrt0-21swapper/211:59:132
93012560,2sleep19163-21latency_hist08:33:551
93012560,2sleep19163-21latency_hist08:33:551
150322550,3sleep2351rcuc/210:14:052
150322550,3sleep2351rcuc/210:14:052
185282530,3sleep30-21swapper/308:58:483
185282530,3sleep30-21swapper/308:58:483
20892500,1sleep02092-21wc09:39:090
20892500,1sleep02092-21wc09:39:090
269602490,3sleep30-21swapper/307:54:003
17152480,1sleep00-21swapper/011:04:110
17152480,1sleep00-21swapper/011:04:110
61252460,3sleep00-21swapper/008:24:040
256192460,3sleep30-21swapper/310:43:523
256192460,3sleep30-21swapper/310:43:523
256192460,3sleep30-21swapper/310:43:523
293202450,3sleep20-21swapper/209:24:122
86142430,2sleep30-21swapper/309:58:503
86142430,2sleep30-21swapper/309:58:503
197662430,2sleep119929-21tail08:59:151
197662430,2sleep119929-21tail08:59:151
156972420,2sleep115706-21uname08:49:061
183752400,2sleep20-21swapper/210:24:022
175932400,3sleep20-21swapper/210:19:112
175932400,3sleep20-21swapper/210:19:112
265892390,2sleep20-21swapper/209:19:012
265892390,2sleep20-21swapper/209:19:012
266812380,3chrt0-21swapper/309:19:023
266812380,3chrt0-21swapper/309:19:023
33782370,1sleep12634-21/usr/sbin/munin11:09:081
12233993731,4cyclictest12906-21latency_hist08:43:491
12233993731,4cyclictest12906-21latency_hist08:43:491
119462360,2sleep011996-21sort11:33:550
273562350,3sleep20-21swapper/207:54:032
12233993428,4cyclictest20026-21kernelversion11:54:031
12229993428,4cyclictest171ktimers/010:32:090
12229993428,4cyclictest171ktimers/010:32:090
12229993427,4cyclictest729-21dbus-daemon10:23:490
12229993427,4cyclictest729-21dbus-daemon10:23:490
12229993426,6cyclictest29050-21fschecks_count12:19:020
12229993426,6cyclictest29050-21fschecks_count12:19:020
12229993425,6cyclictest28232-21unixbench_singl12:14:120
12229993425,6cyclictest28232-21unixbench_singl12:14:120
34142330,5sleep20-21swapper/211:09:082
1224199331,6cyclictest6550-21chrt09:51:593
1224199331,6cyclictest6550-21chrt09:51:593
12233993324,7cyclictest4421-21netstat08:19:081
12233993324,7cyclictest4421-21netstat08:19:081
23582320,3sleep20-21swapper/209:39:112
23582320,3sleep20-21swapper/209:39:112
12233993223,7cyclictest550-21cron12:28:481
12233993223,7cyclictest550-21cron12:28:481
12229993228,3cyclictest24680-21gltestperf09:14:020
12229993225,5cyclictest3148-21kernelversion11:09:030
12229993222,8cyclictest7234-21gltestperf09:54:020
12229993222,8cyclictest7234-21gltestperf09:54:020
12229993222,7cyclictest8445-21fschecks_count11:24:000
12229993222,7cyclictest8445-21fschecks_count11:24:000
84672310,3sleep30-21swapper/311:24:003
84672310,3sleep30-21swapper/311:24:003
12233993123,6cyclictest26969-21cut07:54:001
256702300,4sleep20-21swapper/210:43:552
256702300,4sleep20-21swapper/210:43:552
256702300,4sleep20-21swapper/210:43:552
12233993024,3cyclictest0-21swapper/107:38:481
12233993024,3cyclictest0-21swapper/107:38:481
12229993025,3cyclictest90-1pr/ttyS012:41:420
12229993025,3cyclictest90-1pr/ttyS012:41:420
12229993025,3cyclictest90-1pr/ttyS009:12:210
12229993025,3cyclictest90-1pr/ttyS009:12:210
12229993024,5cyclictest26740-21threads10:44:110
12229993024,4cyclictest12228-21cyclictest07:39:020
12229993024,4cyclictest12228-21cyclictest07:39:020
12229993023,5cyclictest12716-21needreboot11:34:060
12229993023,5cyclictest12716-21needreboot11:34:060
120032300,2chrt0-21swapper/208:39:092
120032300,2chrt0-21swapper/208:39:092
302472290,3sleep20-21swapper/210:54:082
1224199291,9cyclictest15763-21chrt08:49:073
12233992924,3cyclictest1236-21timerandwakeup12:29:121
12233992923,4cyclictest2948-21latency_hist09:43:481
12233992923,4cyclictest2948-21latency_hist09:43:481
12233992922,5cyclictest6900-21kernelversion11:19:041
12233992922,5cyclictest6900-21kernelversion11:19:041
12233992922,5cyclictest6900-21kernelversion11:19:041
12233992922,5cyclictest23943-21sshd09:11:221
12233992922,5cyclictest23943-21sshd09:11:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional