You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-23 - 02:49

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 #0, slot #8

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.
Unexpectedly long latencies may be caused by SMIs
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 rack0slot8s.osadl.org (updated Tue Jun 23, 2026 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2834911010,87ptp4l0-21swapper/119:05:141
94080870,82rtkit-daemon0-21swapper/1019:08:142
2748526352,9sleep00-21swapper/019:05:080
3066326049,9sleep70-21swapper/719:08:279
189512580,0sleep50-21swapper/520:55:247
3065425644,10sleep110-21swapper/1119:08:203
3046825645,9sleep50-21swapper/519:05:387
3112899540,8cyclictest0-21swapper/1019:32:182
3070325443,9sleep60-21swapper/619:09:038
3063425443,9sleep40-21swapper/419:08:016
31128993534,1cyclictest0-21swapper/1021:15:212
31128993224,8cyclictest0-21swapper/1019:45:222
3111999191,17cyclictest0-21swapper/821:05:1910
3111099190,1cyclictest0-21swapper/619:32:198
3108899193,9cyclictest0-21swapper/221:20:014
3108899192,10cyclictest0-21swapper/222:55:244
283491190,0ptp4l0-21swapper/123:25:131
3108299183,9cyclictest0-21swapper/121:10:011
283491180,1ptp4l0-21swapper/122:30:121
283491180,1ptp4l0-21swapper/122:20:191
3110599173,8cyclictest0-21swapper/519:25:017
3108899173,9cyclictest0-21swapper/220:30:014
3108299173,9cyclictest0-21swapper/122:10:001
283491170,0ptp4l0-21swapper/120:00:141
3111499162,9cyclictest0-21swapper/720:55:019
3111499162,8cyclictest0-21swapper/723:40:249
3108899162,10cyclictest0-21swapper/223:35:014
3108299163,8cyclictest0-21swapper/123:40:011
3108299163,8cyclictest0-21swapper/119:45:011
3108299162,9cyclictest0-21swapper/100:30:011
305142167,7sleep80-21swapper/819:06:1610
283491160,1ptp4l21-21ksoftirqd/120:40:131
283491160,0ptp4l0-21swapper/122:10:011
283491160,0ptp4l0-21swapper/121:40:171
283491160,0ptp4l0-21swapper/121:40:161
283491160,0ptp4l0-21swapper/120:30:241
3113399153,7cyclictest0-21swapper/1122:55:003
3113399150,9cyclictest0-21swapper/1100:05:013
3111999153,7cyclictest0-21swapper/819:25:2210
3111499152,7cyclictest0-21swapper/722:40:239
3110599155,7cyclictest3359-21kworker/u24:200:10:017
3110599153,8cyclictest0-21swapper/522:05:257
3110599152,7cyclictest0-21swapper/519:50:007
3108899152,9cyclictest0-21swapper/222:35:014
3108899152,9cyclictest0-21swapper/219:55:004
3108899151,2cyclictest0-21swapper/222:50:154
3108299152,8cyclictest0-21swapper/120:20:011
283491150,2ptp4l20620-21fw_forwarded_lo19:35:151
3113399143,7cyclictest0-21swapper/1120:45:013
3113399140,9cyclictest0-21swapper/1120:05:013
3111499142,7cyclictest0-21swapper/723:25:229
3111499142,7cyclictest0-21swapper/720:15:019
3111499141,8cyclictest0-21swapper/721:05:009
3110599143,7cyclictest0-21swapper/519:35:017
3110599142,7cyclictest0-21swapper/520:15:007
3110599141,7cyclictest0-21swapper/500:35:007
3108899142,8cyclictest0-21swapper/221:50:014
3108899142,8cyclictest0-21swapper/220:10:014
3108299142,7cyclictest0-21swapper/120:20:231
3108299142,7cyclictest0-21swapper/100:25:011
3107899143,6cyclictest0-21swapper/021:30:010
3107899143,6cyclictest0-21swapper/021:30:010
3107899142,5cyclictest0-21swapper/019:45:000
283491140,1ptp4l21-21ksoftirqd/123:55:131
3113399132,7cyclictest0-21swapper/1119:55:003
31133991311,1cyclictest0-21swapper/1120:54:553
3111999131,8cyclictest0-21swapper/820:40:0110
3111999131,7cyclictest0-21swapper/823:50:0110
31119991310,2cyclictest19114-21turbostat00:30:0110
3111999130,8cyclictest0-21swapper/800:40:0010
3111499130,8cyclictest0-21swapper/719:20:009
3110599132,7cyclictest0-21swapper/521:55:007
31105991310,2cyclictest0-21swapper/522:20:167
3110099133,9cyclictest0-21swapper/400:34:596
3108899133,8cyclictest0-21swapper/219:25:004
3108899132,8cyclictest0-21swapper/223:20:004
3108299133,6cyclictest0-21swapper/120:00:001
3108299132,6cyclictest0-21swapper/122:15:241
3108299132,6cyclictest0-21swapper/121:50:011
3108299132,6cyclictest0-21swapper/121:50:001
3108299132,6cyclictest0-21swapper/119:30:011
3107899132,7cyclictest0-21swapper/020:45:010
283491130,5ptp4l21-21ksoftirqd/123:50:001
283491130,4ptp4l0-21swapper/121:10:201
283491130,1ptp4l8880-21grep19:20:131
283491130,1ptp4l21-21ksoftirqd/122:25:131
283491130,1ptp4l21-21ksoftirqd/120:27:061
283491130,1ptp4l21-21ksoftirqd/100:30:141
283491130,0ptp4l0-21swapper/123:30:181
283491130,0ptp4l0-21swapper/121:50:121
283491130,0ptp4l0-21swapper/121:00:191
283491130,0ptp4l0-21swapper/120:56:081
283491130,0ptp4l0-21swapper/120:05:181
283491130,0ptp4l0-21swapper/100:11:291
3113399122,6cyclictest0-21swapper/1121:20:003
3111999122,6cyclictest0-21swapper/819:40:0010
3111099129,2cyclictest0-21swapper/600:20:168
3110599122,6cyclictest24092-21kworker/u24:221:10:007
3110599122,6cyclictest0-21swapper/519:25:007
3110599121,7cyclictest0-21swapper/521:35:017
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional