You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-01 - 17:21

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 #7, slot #7

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 50 highest latencies:
System rack7slot7s.osadl.org (updated Sat Aug 01, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1428529684,8sleep00-21swapper/007:09:210
1219829266,9sleep30-21swapper/307:05:023
1416329167,8sleep20-21swapper/207:07:462
1424428365,14sleep10-21swapper/107:08:501
326772650,0sleep10-21swapper/112:36:321
14428993130,1cyclictest0-21swapper/208:54:292
1442899300,29cyclictest0-21swapper/210:20:202
1442899270,27cyclictest0-21swapper/211:21:162
1443099251,14cyclictest0-21swapper/312:15:543
1442899254,5cyclictest141rcu_preempt11:49:442
1442899240,23cyclictest0-21swapper/212:09:342
1442899230,23cyclictest0-21swapper/211:40:592
1442899230,23cyclictest0-21swapper/211:15:372
1442499231,19cyclictest0-21swapper/109:00:141
1442199237,8cyclictest5266-21munin-run10:45:000
1443099222,8cyclictest16913-21/usr/sbin/munin11:10:223
14424992220,1cyclictest0-21swapper/112:30:151
1442199220,1cyclictest0-21swapper/011:07:430
1442899210,21cyclictest0-21swapper/211:13:102
1442899210,20cyclictest0-21swapper/211:25:472
1442499210,2cyclictest0-21swapper/111:58:051
141132210,0sleep30-21swapper/310:50:023
14428992011,6cyclictest0-21swapper/208:00:002
1442899200,20cyclictest0-21swapper/210:31:462
1442499200,19cyclictest0-21swapper/111:44:361
1443099190,15cyclictest24398-21sensors10:55:273
1442899199,9cyclictest26957-21apache209:39:052
1442899190,19cyclictest0-21swapper/211:05:052
1442899190,19cyclictest0-21swapper/209:16:352
1442899190,18cyclictest0-21swapper/212:34:072
1442199195,7cyclictest25119-21awk09:40:000
1442199190,14cyclictest0-21swapper/009:27:220
14430991814,4cyclictest0-21swapper/312:38:473
1442899181,2cyclictest0-21swapper/207:40:172
1442899180,18cyclictest0-21swapper/209:42:552
1442899180,16cyclictest0-21swapper/212:03:172
14424991818,0cyclictest0-21swapper/112:01:171
1442499181,1cyclictest31503-21nfs4_client08:50:201
1442499180,18cyclictest0-21swapper/109:18:381
1442499180,17cyclictest0-21swapper/110:31:491
1442199183,7cyclictest4855-21munin-run09:05:000
1442199181,1cyclictest14414-21cyclictest11:55:570
1443099172,3cyclictest0-21swapper/311:25:133
1443099170,14cyclictest0-21swapper/311:49:383
1442899170,17cyclictest0-21swapper/210:16:332
1442899170,17cyclictest0-21swapper/210:09:482
1442899170,17cyclictest0-21swapper/209:46:002
1442499170,14cyclictest0-21swapper/109:38:541
1442199175,10cyclictest0-21swapper/011:20:130
14430991615,1cyclictest0-21swapper/312:03:433
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional