You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-03-12 - 09:02

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 #b, 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 rackbslot8s (updated Thu Mar 12, 2026 00:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12333199127126,1cyclictest297356-21cat22:50:144
1230582118103,10sleep70-21swapper/719:09:317
1227932118103,10sleep20-21swapper/219:05:422
1227882115100,10sleep60-21swapper/619:05:376
122978211398,9sleep10-21swapper/119:08:221
122934211298,9sleep40-21swapper/419:07:444
122971211197,9sleep50-21swapper/519:08:175
122915211197,9sleep30-21swapper/319:07:273
122809210994,10sleep00-21swapper/019:05:550
1233349910399,1cyclictest553-21snmpd20:11:215
1233349910298,1cyclictest553-21snmpd21:20:015
1233319910299,3cyclictest553-21snmpd20:01:044
1233319910299,3cyclictest553-21snmpd00:30:164
1233229910299,3cyclictest553-21snmpd22:30:592
1233229910299,3cyclictest413501-21cat00:35:152
1233229910299,3cyclictest160644-21cat20:20:142
1233229910299,3cyclictest137653-21cat19:35:132
123322991020,102cyclictest0-21swapper/200:15:162
1233189910299,3cyclictest553-21snmpd21:41:081
12331499102100,2cyclictest553-21snmpd20:39:240
123314991020,100cyclictest0-21swapper/021:59:170
123342991010,1cyclictest0-21swapper/722:32:167
123342991010,0cyclictest0-21swapper/721:20:047
1233379910199,1cyclictest553-21snmpd20:05:146
123337991010,0cyclictest0-21swapper/620:55:096
123334991010,100cyclictest0-21swapper/522:39:175
123334991010,100cyclictest0-21swapper/522:08:585
123334991010,100cyclictest0-21swapper/522:04:455
1233319910199,1cyclictest553-21snmpd20:25:324
1233269910199,2cyclictest553-21snmpd23:00:553
1233229910199,1cyclictest605-21lldpd00:02:212
1233229910198,3cyclictest553-21snmpd21:26:012
1233229910198,3cyclictest553-21snmpd21:14:252
1233229910198,3cyclictest553-21snmpd20:26:262
1233229910198,3cyclictest553-21snmpd19:47:372
123322991010,101cyclictest0-21swapper/223:02:462
123322991010,100cyclictest0-21swapper/223:07:442
123322991010,100cyclictest0-21swapper/221:45:022
1233189910198,3cyclictest553-21snmpd21:45:531
123318991010,0cyclictest0-21swapper/119:12:571
1233149910199,2cyclictest553-21snmpd23:06:410
1233149910199,2cyclictest553-21snmpd22:09:360
1233149910199,2cyclictest553-21snmpd21:46:230
1233149910199,2cyclictest553-21snmpd21:33:200
12331499101100,1cyclictest553-21snmpd22:28:430
12331499101100,1cyclictest553-21snmpd19:53:100
123314991010,100cyclictest0-21swapper/022:48:160
123342991000,99cyclictest0-21swapper/723:40:317
123342991000,99cyclictest0-21swapper/721:45:157
123342991000,99cyclictest0-21swapper/720:47:487
123342991000,99cyclictest0-21swapper/719:49:077
123342991000,99cyclictest0-21swapper/719:21:047
123342991000,99cyclictest0-21swapper/719:19:367
123342991000,100cyclictest0-21swapper/723:15:087
123342991000,100cyclictest0-21swapper/722:57:437
123342991000,100cyclictest0-21swapper/721:06:407
123342991000,100cyclictest0-21swapper/719:31:577
123342991000,100cyclictest0-21swapper/700:16:377
1233379910099,1cyclictest553-21snmpd23:06:456
1233379910099,1cyclictest553-21snmpd22:48:106
1233379910099,1cyclictest553-21snmpd19:36:496
1233379910099,1cyclictest329098-21kworker/6:023:56:166
1233379910099,1cyclictest329098-21kworker/6:023:27:186
1233379910099,1cyclictest329098-21kworker/6:000:38:006
1233379910099,1cyclictest241036-21kworker/6:223:13:566
1233379910099,1cyclictest241036-21kworker/6:222:50:406
1233379910099,1cyclictest241036-21kworker/6:222:30:226
1233379910099,1cyclictest241036-21kworker/6:222:20:126
1233379910099,1cyclictest241036-21kworker/6:222:02:186
1233379910099,1cyclictest219052-21kworker/6:021:51:126
1233379910099,1cyclictest179985-21kworker/6:021:18:046
123337991000,99cyclictest0-21swapper/621:57:566
123337991000,99cyclictest0-21swapper/621:14:056
123337991000,99cyclictest0-21swapper/620:41:066
1233349910099,1cyclictest553-21snmpd23:17:235
1233349910099,1cyclictest553-21snmpd22:42:135
1233349910099,1cyclictest553-21snmpd22:12:305
1233349910099,1cyclictest147728-21cat19:55:135
123334991000,99cyclictest0-21swapper/521:48:475
123334991000,99cyclictest0-21swapper/521:44:515
123334991000,99cyclictest0-21swapper/520:21:175
123334991000,99cyclictest0-21swapper/500:17:015
123334991000,100cyclictest0-21swapper/521:51:385
123334991000,100cyclictest0-21swapper/521:36:005
123334991000,100cyclictest0-21swapper/519:53:195
1233319910099,1cyclictest553-21snmpd22:57:524
1233319910099,1cyclictest553-21snmpd20:14:574
1233319910099,1cyclictest553-21snmpd19:33:214
1233319910098,2cyclictest553-21snmpd23:11:444
1233319910098,2cyclictest553-21snmpd21:24:344
1233319910098,2cyclictest553-21snmpd00:07:374
1233319910097,3cyclictest553-21snmpd21:27:404
12333199100100,0cyclictest553-21snmpd23:16:414
123331991000,99cyclictest212610-21ssh21:33:414
123331991000,99cyclictest0-21swapper/423:36:544
123331991000,99cyclictest0-21swapper/420:43:404
123331991000,99cyclictest0-21swapper/419:53:404
123331991000,100cyclictest0-21swapper/422:19:064
1233269910099,1cyclictest553-21snmpd23:40:363
1233269910099,1cyclictest553-21snmpd22:56:563
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional