You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-09-17 - 23:44

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 #8, 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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack8slot6s.osadl.org (updated Wed Sep 17, 2025 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17840991918,1cyclictest66850irq/125-lan12:23:030
17840991918,1cyclictest66850irq/125-lan12:18:490
17840991918,1cyclictest66850irq/125-lan11:55:130
17840991918,1cyclictest66850irq/125-lan11:22:350
17840991918,1cyclictest66850irq/125-lan10:50:130
17840991918,1cyclictest66850irq/125-lan10:34:580
17840991918,1cyclictest66850irq/125-lan10:20:360
17840991918,1cyclictest66850irq/125-lan10:05:190
17840991918,1cyclictest66850irq/125-lan09:40:450
17840991818,0cyclictest66850irq/125-lan12:08:580
17840991818,0cyclictest66850irq/125-lan11:30:100
17840991818,0cyclictest66850irq/125-lan11:08:090
17840991818,0cyclictest66850irq/125-lan10:10:130
17840991818,0cyclictest66850irq/125-lan08:30:410
17840991817,1cyclictest66850irq/125-lan12:39:230
17840991817,1cyclictest66850irq/125-lan12:33:080
17840991817,1cyclictest66850irq/125-lan12:10:400
17840991817,1cyclictest66850irq/125-lan12:00:190
17840991817,1cyclictest66850irq/125-lan11:53:460
17840991817,1cyclictest66850irq/125-lan11:25:220
17840991817,1cyclictest66850irq/125-lan11:19:210
17840991817,1cyclictest66850irq/125-lan11:11:480
17840991817,1cyclictest66850irq/125-lan11:00:130
17840991817,1cyclictest66850irq/125-lan10:35:150
17840991817,1cyclictest66850irq/125-lan10:04:400
17840991817,1cyclictest66850irq/125-lan09:53:300
17840991817,1cyclictest66850irq/125-lan09:33:400
17840991817,1cyclictest66850irq/125-lan09:20:010
17840991817,1cyclictest66850irq/125-lan09:15:150
17840991817,1cyclictest66850irq/125-lan09:11:560
17840991817,1cyclictest66850irq/125-lan08:55:180
17840991817,1cyclictest66850irq/125-lan08:52:400
17847991717,0cyclictest771-21snmpd11:10:002
17847991717,0cyclictest771-21snmpd07:11:552
17847991717,0cyclictest11574-21cat09:20:172
17840991717,0cyclictest66850irq/125-lan11:35:510
17840991717,0cyclictest66850irq/125-lan10:40:540
17840991717,0cyclictest66850irq/125-lan10:29:570
17840991717,0cyclictest66850irq/125-lan09:28:470
17840991716,1cyclictest66850irq/125-lan11:45:170
17840991716,1cyclictest66850irq/125-lan11:44:000
17840991716,1cyclictest66850irq/125-lan09:59:130
17847991616,0cyclictest771-21snmpd12:20:422
17847991616,0cyclictest771-21snmpd10:02:342
17847991616,0cyclictest771-21snmpd09:27:232
17847991616,0cyclictest771-21snmpd08:02:002
17847991616,0cyclictest771-21snmpd07:52:292
17840991616,0cyclictest66850irq/125-lan10:46:380
17840991616,0cyclictest66850irq/125-lan10:17:450
17840991615,1cyclictest66850irq/125-lan12:25:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional