You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-07-01 - 08:09

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 #4, slot #1

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.

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 rack4slot1s.osadl.org (updated Tue Jul 01, 2025 00:44:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
302221100,2sleep13024-21needreboot20:36:411
302221100,2sleep13024-21needreboot20:36:411
1634921050,2sleep30-21swapper/322:36:463
1634921050,2sleep30-21swapper/322:36:463
321822870,7sleep032184-21grep20:26:470
140132850,2sleep014017-21gltestperf21:06:380
140132850,2sleep014017-21gltestperf21:06:380
214872820,2sleep121486-21cat00:21:201
214872820,2sleep121486-21cat00:21:201
277142710,1sleep00-21swapper/021:41:440
277142710,1sleep00-21swapper/021:41:440
2603996039,13cyclictest55150irq/47-eth020:51:320
2603996039,13cyclictest55150irq/47-eth020:51:320
240332600,3chrt0-21swapper/020:06:370
240332600,3chrt0-21swapper/020:06:370
228842570,2chrt22885-21cp22:56:221
228842570,2chrt22885-21cp22:56:221
147952560,3sleep30-21swapper/319:41:483
2604995532,17cyclictest281ktimers/121:56:351
2604995532,17cyclictest281ktimers/121:56:351
260399552,39cyclictest394-21snmpd23:11:330
260399552,39cyclictest394-21snmpd23:11:330
260499543,7cyclictest181rcu_preempt22:36:361
260499543,7cyclictest181rcu_preempt22:36:361
260499522,41cyclictest394-21snmpd20:16:361
124532520,2sleep00-21swapper/023:51:440
124532520,2sleep00-21swapper/023:51:440
2603995036,10cyclictest0-21swapper/022:46:350
2603995036,10cyclictest0-21swapper/022:46:350
260399493,43cyclictest0-21swapper/020:46:320
260399493,43cyclictest0-21swapper/020:46:320
2603994933,7cyclictest1885-21kworker/0:1+events_freezable23:26:330
2603994933,7cyclictest1885-21kworker/0:1+events_freezable23:26:330
9242480,2sleep20-21swapper/220:31:392
9242480,2sleep20-21swapper/220:31:392
2603994818,16cyclictest55150irq/47-eth021:31:330
2603994818,16cyclictest55150irq/47-eth021:31:330
260499470,5cyclictest181rcu_preempt00:36:321
260499470,5cyclictest181rcu_preempt00:36:321
263082460,2sleep20-21swapper/220:11:452
263082460,2sleep20-21swapper/220:11:452
260599451,30cyclictest2268-21chrt23:26:342
260599451,30cyclictest2268-21chrt23:26:342
2604994526,9cyclictest91-1pr/ttyS023:37:071
2604994526,9cyclictest91-1pr/ttyS023:37:071
50402440,2sleep05044-21proc_pri20:41:420
50402440,2sleep05044-21proc_pri20:41:420
307822440,3sleep30-21swapper/321:51:283
307822440,3sleep30-21swapper/321:51:283
2604994324,9cyclictest91-1pr/ttyS021:29:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional