You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-26 - 17:50

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 #c, 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 rackcslot8s.osadl.org (updated Sun Apr 26, 2026 12:46:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
310572660,0sleep20-21swapper/209:00:182
111391660,14ptp4l9-21ksoftirqd/007:05:210
111391630,29ptp4l0-21swapper/107:09:291
1881916049,6phc2sys0-21swapper/207:07:182
111391600,5ptp4l0-21swapper/407:09:144
228302580,0sleep50-21swapper/510:19:525
140352570,0sleep00-21swapper/010:50:140
111391550,5ptp4l0-21swapper/507:05:215
1881915433,6phc2sys0-21swapper/607:08:296
876925331,7sleep70-21swapper/707:05:147
1036624736,7sleep30-21swapper/307:08:543
289672440,0sleep60-21swapper/611:51:496
111391350,0ptp4l0-21swapper/410:51:454
111391340,0ptp4l0-21swapper/010:36:060
111391330,0ptp4l0-21swapper/509:52:085
111391330,0ptp4l0-21swapper/411:25:434
111391330,0ptp4l0-21swapper/010:10:500
111391330,0ptp4l0-21swapper/010:10:490
111391320,3ptp4l0-21swapper/412:30:164
111391320,0ptp4l7473-21ssh09:59:444
111391320,0ptp4l0-21swapper/711:17:567
111391320,0ptp4l0-21swapper/409:48:174
111391320,0ptp4l0-21swapper/012:15:570
111391320,0ptp4l0-21swapper/012:08:160
111391310,0ptp4l0-21swapper/710:20:177
111391310,0ptp4l0-21swapper/512:31:315
111391310,0ptp4l0-21swapper/412:37:104
111391310,0ptp4l0-21swapper/411:52:204
111391310,0ptp4l0-21swapper/411:22:124
111391310,0ptp4l0-21swapper/409:30:154
111391310,0ptp4l0-21swapper/409:24:314
111391310,0ptp4l0-21swapper/407:55:124
111391310,0ptp4l0-21swapper/012:04:250
111391310,0ptp4l0-21swapper/011:54:350
111391310,0ptp4l0-21swapper/011:20:230
111391310,0ptp4l0-21swapper/010:31:370
111391310,0ptp4l0-21swapper/010:21:060
111391310,0ptp4l0-21swapper/009:24:520
111391300,2ptp4l0-21swapper/410:31:564
111391300,0ptp4l0-21swapper/611:49:336
111391300,0ptp4l0-21swapper/411:42:274
111391300,0ptp4l0-21swapper/410:20:104
111391300,0ptp4l0-21swapper/410:10:074
111391300,0ptp4l0-21swapper/410:10:064
111391300,0ptp4l0-21swapper/012:38:250
111391300,0ptp4l0-21swapper/010:41:370
111391290,3ptp4l0-21swapper/409:44:044
111391290,3ptp4l0-21swapper/012:34:090
111391290,0ptp4l0-21swapper/411:59:154
111391290,0ptp4l0-21swapper/411:39:514
111391290,0ptp4l0-21swapper/409:14:484
111391290,0ptp4l0-21swapper/111:12:121
111391290,0ptp4l0-21swapper/110:31:481
111391290,0ptp4l0-21swapper/011:10:250
111391290,0ptp4l0-21swapper/009:41:340
111391290,0ptp4l0-21swapper/009:29:360
111391290,0ptp4l0-21swapper/007:45:130
111391280,1ptp4l0-21swapper/411:09:214
111391280,0ptp4l0-21swapper/411:04:234
111391280,0ptp4l0-21swapper/410:56:524
111391280,0ptp4l0-21swapper/409:52:094
111391280,0ptp4l0-21swapper/409:38:594
111391280,0ptp4l0-21swapper/409:19:444
111391280,0ptp4l0-21swapper/011:40:200
111391280,0ptp4l0-21swapper/011:32:420
111391280,0ptp4l0-21swapper/009:52:190
111391280,0ptp4l0-21swapper/009:38:240
111391270,6ptp4l7866-21kworker/0:211:36:150
111391270,3ptp4l721ktimersoftd/711:05:577
111391270,1ptp4l0-21swapper/412:23:184
111391270,0ptp4l25571-21ssh11:48:054
111391270,0ptp4l0-21swapper/412:17:384
111391270,0ptp4l0-21swapper/412:01:324
111391270,0ptp4l0-21swapper/411:16:564
111391270,0ptp4l0-21swapper/410:47:534
111391270,0ptp4l0-21swapper/011:49:500
111391270,0ptp4l0-21swapper/009:59:210
111391260,3ptp4l0-21swapper/411:10:594
111391260,1ptp4l20074-21irqstats10:15:161
111391260,0ptp4l0-21swapper/412:06:224
111391260,0ptp4l0-21swapper/410:26:204
111391260,0ptp4l0-21swapper/012:26:400
111391260,0ptp4l0-21swapper/012:20:220
111391260,0ptp4l0-21swapper/012:13:160
111391260,0ptp4l0-21swapper/010:15:010
111391250,3ptp4l0-21swapper/408:30:464
111391250,0ptp4l0-21swapper/412:27:144
111391250,0ptp4l0-21swapper/410:43:104
111391250,0ptp4l0-21swapper/409:25:094
111391250,0ptp4l0-21swapper/409:05:194
111391250,0ptp4l0-21swapper/408:10:154
111391250,0ptp4l0-21swapper/408:01:414
111391250,0ptp4l0-21swapper/407:50:124
111391250,0ptp4l0-21swapper/407:15:014
111391250,0ptp4l0-21swapper/210:15:312
111391250,0ptp4l0-21swapper/112:38:481
111391250,0ptp4l0-21swapper/011:55:180
111391250,0ptp4l0-21swapper/011:15:460
111391250,0ptp4l0-21swapper/011:01:280
111391250,0ptp4l0-21swapper/010:55:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional