You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-14 - 19:36

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 Tue Apr 14, 2026 12:46:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111391770,29ptp4l0-21swapper/007:05:130
1198226241,6sleep20-21swapper/207:08:142
180482610,0sleep00-21swapper/010:15:130
299002600,0sleep60-21swapper/611:16:566
270442600,0sleep30-21swapper/311:14:043
111391600,5ptp4l0-21swapper/407:08:394
1179525949,6sleep70-21swapper/707:05:547
267572580,0sleep00-21swapper/011:13:130
111391570,4ptp4l0-21swapper/107:05:071
1180025434,6sleep30-21swapper/307:05:583
1189324935,9sleep60-21swapper/607:07:066
1021324534,6sleep50-21swapper/507:05:045
111391310,2ptp4l0-21swapper/009:36:060
111391310,0ptp4l0-21swapper/409:42:114
111391300,0ptp4l0-21swapper/710:48:427
111391300,0ptp4l0-21swapper/512:24:425
111391300,0ptp4l0-21swapper/412:23:574
111391300,0ptp4l0-21swapper/309:17:283
111391300,0ptp4l0-21swapper/010:01:170
111391290,0ptp4l0-21swapper/511:35:185
111391290,0ptp4l0-21swapper/411:48:454
111391290,0ptp4l0-21swapper/411:41:584
111391290,0ptp4l0-21swapper/410:01:554
111391290,0ptp4l0-21swapper/111:32:561
111391290,0ptp4l0-21swapper/012:16:560
111391290,0ptp4l0-21swapper/012:08:050
111391290,0ptp4l0-21swapper/011:46:050
111391290,0ptp4l0-21swapper/010:48:130
111391280,0ptp4l0-21swapper/512:05:215
111391280,0ptp4l0-21swapper/512:02:575
111391280,0ptp4l0-21swapper/412:01:054
111391280,0ptp4l0-21swapper/411:10:444
111391280,0ptp4l0-21swapper/410:35:184
111391280,0ptp4l0-21swapper/409:33:014
111391280,0ptp4l0-21swapper/212:26:382
111391280,0ptp4l0-21swapper/110:44:551
111391280,0ptp4l0-21swapper/011:51:000
111391280,0ptp4l0-21swapper/009:56:510
111391280,0ptp4l0-21swapper/009:55:000
111391280,0ptp4l0-21swapper/009:13:430
111391270,0ptp4l0-21swapper/511:55:225
111391270,0ptp4l0-21swapper/510:52:115
111391270,0ptp4l0-21swapper/510:52:115
111391270,0ptp4l0-21swapper/510:42:145
111391270,0ptp4l0-21swapper/410:09:254
111391270,0ptp4l0-21swapper/409:58:044
111391270,0ptp4l0-21swapper/409:39:304
111391270,0ptp4l0-21swapper/310:20:483
111391270,0ptp4l0-21swapper/112:19:411
111391270,0ptp4l0-21swapper/112:04:551
111391270,0ptp4l0-21swapper/110:06:541
111391270,0ptp4l0-21swapper/109:24:351
111391270,0ptp4l0-21swapper/108:50:131
111391270,0ptp4l0-21swapper/011:24:060
111391270,0ptp4l0-21swapper/010:58:060
111391270,0ptp4l0-21swapper/010:25:010
111391270,0ptp4l0-21swapper/009:47:540
111391270,0ptp4l0-21swapper/009:44:440
111391270,0ptp4l0-21swapper/008:20:150
111391260,0ptp4l0-21swapper/710:20:047
111391260,0ptp4l0-21swapper/508:15:185
111391260,0ptp4l0-21swapper/508:15:185
111391260,0ptp4l0-21swapper/412:09:354
111391260,0ptp4l0-21swapper/411:16:144
111391260,0ptp4l0-21swapper/410:56:164
111391260,0ptp4l0-21swapper/410:28:314
111391260,0ptp4l0-21swapper/409:47:354
111391260,0ptp4l0-21swapper/409:13:394
111391260,0ptp4l0-21swapper/112:38:401
111391260,0ptp4l0-21swapper/111:18:541
111391260,0ptp4l0-21swapper/110:04:291
111391260,0ptp4l0-21swapper/012:23:520
111391260,0ptp4l0-21swapper/012:01:060
111391260,0ptp4l0-21swapper/011:59:040
111391260,0ptp4l0-21swapper/011:42:310
111391260,0ptp4l0-21swapper/010:43:420
111391260,0ptp4l0-21swapper/007:10:120
111391250,1ptp4l24941-21fw_conntrack07:35:144
111391250,1ptp4l16337-21df_inode12:30:140
111391250,0ptp4l0-21swapper/510:07:535
111391250,0ptp4l0-21swapper/510:02:425
111391250,0ptp4l0-21swapper/412:31:264
111391250,0ptp4l0-21swapper/412:26:584
111391250,0ptp4l0-21swapper/411:25:144
111391250,0ptp4l0-21swapper/411:20:204
111391250,0ptp4l0-21swapper/411:09:414
111391250,0ptp4l0-21swapper/410:51:134
111391250,0ptp4l0-21swapper/410:51:134
111391250,0ptp4l0-21swapper/409:23:014
111391250,0ptp4l0-21swapper/111:21:241
111391250,0ptp4l0-21swapper/109:52:421
111391250,0ptp4l0-21swapper/109:45:151
111391250,0ptp4l0-21swapper/109:28:141
111391250,0ptp4l0-21swapper/108:40:191
111391250,0ptp4l0-21swapper/012:15:000
111391250,0ptp4l0-21swapper/011:20:000
111391250,0ptp4l0-21swapper/009:33:470
111391240,3ptp4l121rcu_preempt08:19:010
111391240,3ptp4l121rcu_preempt08:19:010
111391240,2ptp4l0-21swapper/110:45:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional