You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2025-12-10 - 17:54

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 #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 Wed Dec 10, 2025 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
94980880,83rtkit-daemon0-21swapper/1007:09:502
275991830,65ptp4l0-21swapper/107:09:521
104862710,0sleep80-21swapper/809:35:1910
2513126957,10sleep70-21swapper/707:09:529
2427726859,6sleep50-21swapper/507:05:257
2496326655,9sleep00-21swapper/007:07:310
60192650,0sleep60-21swapper/608:05:208
2483526554,9sleep60-21swapper/607:05:388
2183826352,9sleep110-21swapper/1107:05:063
25892610,0sleep80-21swapper/807:20:1710
290092600,0sleep00-21swapper/007:55:000
2486126049,9sleep40-21swapper/407:06:006
164622580,0sleep100-21swapper/1008:20:132
58032550,0sleep40-21swapper/410:10:206
58032550,0sleep40-21swapper/410:10:206
212092550,0sleep10-21swapper/107:45:011
199462550,0sleep100-21swapper/1009:05:182
172072550,0sleep10-21swapper/109:45:141
67752210,0sleep60-21swapper/608:50:018
268092200,0sleep90-21swapper/909:55:2211
2547199186,8cyclictest12899-21kworker/u24:207:25:008
2547199184,9cyclictest12899-21kworker/u24:207:30:018
2545299184,9cyclictest0-21swapper/207:10:014
2544299183,9cyclictest0-21swapper/008:35:000
317302170,0sleep80-21swapper/809:20:1710
275991170,0ptp4l0-21swapper/108:05:271
2548999172,9cyclictest0-21swapper/907:30:2611
2548099172,9cyclictest0-21swapper/707:35:009
2545899172,9cyclictest0-21swapper/311:50:255
2545299173,9cyclictest0-21swapper/211:45:014
95832160,0sleep50-21swapper/509:35:177
275991160,0ptp4l0-21swapper/111:40:191
275991160,0ptp4l0-21swapper/111:35:111
2548999163,7cyclictest0-21swapper/909:20:0011
2548599163,7cyclictest0-21swapper/812:24:1610
2547199163,8cyclictest0-21swapper/611:35:018
2545899163,8cyclictest0-21swapper/308:30:245
2544799162,8cyclictest0-21swapper/112:25:001
2544299163,8cyclictest0-21swapper/009:24:100
2544299163,7cyclictest0-21swapper/007:14:590
251322167,7sleep80-21swapper/807:09:5310
147582160,0sleep110-21swapper/1111:45:253
275991150,0ptp4l0-21swapper/111:20:161
275991150,0ptp4l0-21swapper/108:00:221
2548999152,7cyclictest0-21swapper/911:35:0111
2548099152,7cyclictest0-21swapper/708:20:009
2548099152,7cyclictest0-21swapper/708:10:019
2547199152,7cyclictest0-21swapper/608:10:268
2545299158,6cyclictest16319-21switchtime07:35:264
2545299154,7cyclictest29886-21kworker/u24:112:35:004
2545299153,8cyclictest0-21swapper/207:50:014
2544799152,8cyclictest0-21swapper/108:25:241
2544299152,8cyclictest0-21swapper/011:55:010
2544299152,8cyclictest0-21swapper/010:15:010
2544299152,8cyclictest0-21swapper/010:15:010
2544299151,9cyclictest0-21swapper/012:05:000
24582150,0sleep1075-21ksoftirqd/1010:05:372
24582150,0sleep1075-21ksoftirqd/1010:05:372
36642140,0sleep00-21swapper/011:30:240
275991140,1ptp4l26790-21unixbench_singl08:30:241
275991140,1ptp4l21-21ksoftirqd/111:55:161
275991140,0ptp4l0-21swapper/111:45:271
275991140,0ptp4l0-21swapper/111:10:141
275991140,0ptp4l0-21swapper/110:25:161
275991140,0ptp4l0-21swapper/110:25:151
275991140,0ptp4l0-21swapper/110:15:291
275991140,0ptp4l0-21swapper/110:15:291
275991140,0ptp4l0-21swapper/109:37:121
2548999142,7cyclictest0-21swapper/908:50:0111
2548999141,8cyclictest0-21swapper/910:15:0011
2548999141,8cyclictest0-21swapper/910:15:0011
2548099143,7cyclictest0-21swapper/708:50:019
2548099143,6cyclictest0-21swapper/709:00:009
2548099142,8cyclictest0-21swapper/709:20:009
2548099142,6cyclictest0-21swapper/712:30:019
2547199142,8cyclictest0-21swapper/607:39:598
2547199142,7cyclictest0-21swapper/611:10:238
2547199142,7cyclictest0-21swapper/610:50:008
2547199142,7cyclictest0-21swapper/609:25:008
2547199142,7cyclictest0-21swapper/609:00:018
2547199142,7cyclictest0-21swapper/608:05:008
2545899142,7cyclictest0-21swapper/312:30:015
2545299145,5cyclictest29886-21kworker/u24:110:55:004
2545299143,9cyclictest0-21swapper/210:00:014
2545299140,13cyclictest0-21swapper/210:20:144
2545299140,13cyclictest0-21swapper/210:20:134
2545299140,13cyclictest0-21swapper/207:30:174
2544799142,8cyclictest0-21swapper/109:05:011
2544799142,8cyclictest0-21swapper/108:50:011
2544799142,7cyclictest0-21swapper/110:45:001
2544299143,6cyclictest0-21swapper/007:35:000
2544299142,8cyclictest0-21swapper/008:35:000
2544299142,7cyclictest0-21swapper/011:15:010
2544299141,7cyclictest0-21swapper/010:00:010
294422130,0sleep20-21swapper/208:35:194
275991130,0ptp4l0-21swapper/112:00:211
275991130,0ptp4l0-21swapper/110:20:181
275991130,0ptp4l0-21swapper/110:20:171
275991130,0ptp4l0-21swapper/109:15:221
275991130,0ptp4l0-21swapper/108:40:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional