You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-03-26 - 18:15

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 #3, slot #6

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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot6s.osadl.org (updated Thu Mar 26, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4754211696,15sleep00-21swapper/007:07:320
4944211593,17sleep30-21swapper/307:09:593
4942210796,6sleep10-21swapper/107:09:581
4746210594,6sleep20-21swapper/207:07:262
110652850,1sleep00-21swapper/010:40:000
248522730,0sleep10-21swapper/111:27:441
143552670,0sleep10-21swapper/109:35:171
43952630,5sleep0497299cyclictest11:05:460
4975993517,2cyclictest0-21swapper/308:15:123
497499330,31cyclictest0-21swapper/208:10:102
497299331,4cyclictest15262-21latency_hist07:35:010
497499280,2cyclictest0-21swapper/209:00:102
119152280,1sleep20-21swapper/207:25:152
497299250,4cyclictest9672-21grep11:45:180
497299241,3cyclictest0-21swapper/010:00:150
497299241,3cyclictest0-21swapper/007:20:130
497299230,3cyclictest8603-21rm09:30:100
497299230,3cyclictest0-21swapper/012:30:150
497299230,3cyclictest0-21swapper/010:55:140
497299230,3cyclictest0-21swapper/010:53:230
497299230,3cyclictest0-21swapper/010:41:140
497299220,3cyclictest32152-21fschecks_time08:15:140
497299220,3cyclictest2655-21awk08:21:030
497299220,3cyclictest21278-21ssh11:24:380
497299220,3cyclictest0-21swapper/012:20:220
497299220,3cyclictest0-21swapper/011:50:030
497299220,3cyclictest0-21swapper/011:35:140
497299220,3cyclictest0-21swapper/011:25:150
497299220,3cyclictest0-21swapper/011:14:460
497299220,3cyclictest0-21swapper/009:57:060
497299220,3cyclictest0-21swapper/009:10:070
497299220,3cyclictest0-21swapper/008:50:140
497299220,3cyclictest0-21swapper/007:50:140
497299220,2cyclictest0-21swapper/011:17:310
497299220,20cyclictest0-21swapper/011:31:280
148222220,0sleep30-21swapper/311:17:033
497299210,3cyclictest9950-21ssh10:05:100
497299210,3cyclictest6520-21ssh12:15:390
497299210,3cyclictest4708-21sed08:26:020
497299210,3cyclictest28899-21ssh09:16:500
497299210,3cyclictest28849-21sh12:05:180
497299210,3cyclictest1844-21ssh11:03:550
497299210,3cyclictest0-21swapper/012:28:420
497299210,3cyclictest0-21swapper/010:18:540
497299210,3cyclictest0-21swapper/009:45:220
497299210,2cyclictest17252-21ssh10:11:540
497299210,2cyclictest0-21swapper/011:43:550
497299210,2cyclictest0-21swapper/010:30:140
497299210,2cyclictest0-21swapper/010:26:350
497299210,2cyclictest0-21swapper/009:52:060
497299210,2cyclictest0-21swapper/008:30:110
4974992017,2cyclictest2224-21kworker/u8:210:00:042
4974992016,2cyclictest22251-21kworker/u8:010:33:042
497499200,18cyclictest0-21swapper/211:45:112
497299202,12cyclictest0-21swapper/007:29:590
497299200,3cyclictest3649-21snmpd07:12:380
497299200,2cyclictest26813-21kworker/u8:012:37:190
497299200,2cyclictest26813-21kworker/u8:012:37:180
497299200,2cyclictest21276-21diskmemload09:20:100
497299200,2cyclictest19955-21hddtemp_smartct07:45:150
497299200,2cyclictest0-21swapper/012:10:180
497299200,2cyclictest0-21swapper/012:00:500
497299200,2cyclictest0-21swapper/011:55:060
497299200,2cyclictest0-21swapper/010:23:260
497299200,2cyclictest0-21swapper/009:35:030
497299200,2cyclictest0-21swapper/009:25:260
497299200,2cyclictest0-21swapper/008:45:150
497299200,2cyclictest0-21swapper/008:35:190
497299200,2cyclictest0-21swapper/007:58:550
497299200,11cyclictest0-21swapper/008:05:160
4974991916,2cyclictest3849-21kworker/u8:111:50:052
4974991916,2cyclictest21223-21kworker/u8:212:15:052
4974991916,2cyclictest18714-21kworker/u8:010:48:012
497399193,2cyclictest21276-21diskmemload09:40:041
4973991916,2cyclictest0-21swapper/107:20:101
497399190,18cyclictest0-21swapper/109:00:101
497299190,2cyclictest20013-21ssh10:49:020
497299190,2cyclictest0-21swapper/008:55:100
497299190,2cyclictest0-21swapper/007:37:220
4974991815,2cyclictest541-21kworker/u8:110:42:042
4974991815,2cyclictest27335-21kworker/u8:009:53:042
4974991815,2cyclictest19189-21kworker/u8:209:17:042
4973991815,2cyclictest21976-21kworker/u8:211:39:041
497399180,16cyclictest0-21swapper/109:25:091
497299180,2cyclictest3649-21snmpd08:14:310
497299180,2cyclictest19485-21apt-get09:05:100
4974991714,2cyclictest5224-21kworker/u8:207:36:042
4974991714,2cyclictest4939-21kworker/u8:208:28:042
4974991714,2cyclictest18714-21kworker/u8:011:06:042
4973991714,2cyclictest2416-21kworker/u8:112:21:041
4973991714,2cyclictest20925-21kworker/u8:112:34:041
4973991714,2cyclictest18714-21kworker/u8:011:05:041
4973991714,2cyclictest15582-21kworker/u8:011:57:041
32822170,0sleep20-21swapper/211:39:442
497599161,3cyclictest25275-40update-apt-xapi07:59:133
4974991613,2cyclictest6615-21kworker/u8:210:53:042
4974991613,2cyclictest5704-21kworker/u8:111:25:052
4974991613,2cyclictest5704-21kworker/u8:111:22:052
4974991613,2cyclictest5224-21kworker/u8:207:15:052
4974991613,2cyclictest32514-21kworker/u8:009:33:042
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional