You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-26 - 00:58

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 Mon May 25, 2026 12:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
283491840,64ptp4l0-21swapper/107:06:151
364526956,10sleep110-21swapper/1107:05:133
669626857,9sleep50-21swapper/507:05:547
689926655,9sleep60-21swapper/607:08:558
687126655,9sleep40-21swapper/407:08:306
680726654,10sleep70-21swapper/707:07:329
671726554,9sleep00-21swapper/007:06:130
602826553,9sleep100-21swapper/1007:05:232
236952600,0sleep00-21swapper/011:00:120
254862580,0sleep70-21swapper/709:35:229
155162540,0sleep30-21swapper/312:10:235
45462490,0sleep60-21swapper/612:00:008
60552480,0sleep70-21swapper/709:55:019
60552480,0sleep70-21swapper/709:55:009
731299202,14cyclictest0-21swapper/409:55:016
731299202,14cyclictest0-21swapper/409:55:006
729899193,11cyclictest0-21swapper/211:30:004
729899193,10cyclictest0-21swapper/211:05:004
729899183,10cyclictest0-21swapper/210:05:004
729899183,10cyclictest0-21swapper/210:05:004
733299175,8cyclictest30571-21kworker/u24:111:20:0010
729899173,8cyclictest0-21swapper/208:10:014
728999173,9cyclictest0-21swapper/007:15:010
728999173,8cyclictest0-21swapper/007:50:010
283491170,0ptp4l0-21swapper/111:20:151
7341991615,1cyclictest0-21swapper/1008:10:222
733699163,8cyclictest0-21swapper/908:15:0111
733699161,9cyclictest0-21swapper/909:25:0011
733299163,7cyclictest0-21swapper/809:30:0110
730699162,8cyclictest0-21swapper/309:35:005
730699162,8cyclictest0-21swapper/308:50:265
7306991612,3cyclictest0-21swapper/311:30:155
730699161,10cyclictest0-21swapper/312:30:005
729899163,9cyclictest0-21swapper/208:25:004
729899163,8cyclictest0-21swapper/209:15:014
729899162,8cyclictest0-21swapper/211:40:234
729899162,10cyclictest0-21swapper/212:40:014
67672167,7sleep80-21swapper/807:06:5710
733699153,7cyclictest0-21swapper/911:10:2311
733699153,7cyclictest0-21swapper/910:55:0011
733699152,8cyclictest0-21swapper/911:45:0011
733699152,7cyclictest0-21swapper/909:40:0011
733699152,6cyclictest0-21swapper/907:30:0011
733299153,8cyclictest0-21swapper/811:10:0110
733299153,7cyclictest0-21swapper/808:20:0110
733299152,7cyclictest0-21swapper/811:25:0010
732799152,7cyclictest0-21swapper/712:40:009
732799152,7cyclictest0-21swapper/707:50:019
730699155,6cyclictest0-21swapper/310:15:225
730699154,6cyclictest0-21swapper/311:00:015
730699152,8cyclictest0-21swapper/312:05:235
730699152,8cyclictest0-21swapper/310:30:015
729899152,9cyclictest0-21swapper/208:40:004
729499152,8cyclictest0-21swapper/110:20:011
728999153,8cyclictest0-21swapper/011:45:210
728999153,8cyclictest0-21swapper/008:10:000
728999153,7cyclictest0-21swapper/010:45:010
283491150,1ptp4l21-21ksoftirqd/107:30:201
283491150,0ptp4l0-21swapper/111:30:181
283491150,0ptp4l0-21swapper/109:15:231
200732150,1sleep111009-21runrttasks10:55:113
133482150,2sleep333-21ksoftirqd/307:55:205
734599140,13cyclictest31696-21awk09:05:003
733699142,7cyclictest0-21swapper/912:05:0011
7336991411,2cyclictest0-21swapper/910:20:2211
733699140,13cyclictest0-21swapper/907:24:5611
733299142,8cyclictest0-21swapper/807:45:0010
733299142,7cyclictest0-21swapper/810:10:0110
733299142,7cyclictest0-21swapper/810:10:0010
733299140,1cyclictest0-21swapper/810:30:0010
732799143,7cyclictest0-21swapper/711:50:009
730699143,6cyclictest0-21swapper/309:50:005
730699142,7cyclictest0-21swapper/309:45:015
283491140,0ptp4l0-21swapper/109:50:201
283491140,0ptp4l0-21swapper/109:50:191
283491140,0ptp4l0-21swapper/108:55:121
283491140,0ptp4l0-21swapper/107:25:251
733699132,6cyclictest0-21swapper/910:10:2311
733699132,6cyclictest0-21swapper/910:10:2311
733299132,7cyclictest0-21swapper/807:35:2310
733299131,8cyclictest0-21swapper/811:35:0110
732799133,6cyclictest0-21swapper/710:25:019
732799132,8cyclictest0-21swapper/707:35:009
732799132,7cyclictest0-21swapper/709:40:239
732799130,8cyclictest0-21swapper/711:20:009
732799130,8cyclictest0-21swapper/709:05:249
730699132,7cyclictest0-21swapper/311:20:255
729899132,9cyclictest0-21swapper/209:45:014
729499132,7cyclictest0-21swapper/111:25:011
729499131,8cyclictest0-21swapper/110:30:241
728999133,6cyclictest0-21swapper/012:15:000
728999132,7cyclictest0-21swapper/012:20:000
283491130,1ptp4l21-21ksoftirqd/111:59:331
283491130,1ptp4l21-21ksoftirqd/110:09:331
283491130,1ptp4l21-21ksoftirqd/110:09:331
734199120,1cyclictest0-21swapper/1011:15:142
734199120,11cyclictest0-21swapper/1011:29:562
734199120,11cyclictest0-21swapper/1010:49:552
733299120,7cyclictest0-21swapper/810:04:5610
733299120,7cyclictest0-21swapper/810:04:5510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional