You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-25 - 22:30

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 #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.

Total number of samples: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack4slot6s.osadl.org (updated Tue Nov 25, 2025 12:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
129821320,4chrt1295-21ntpq07:10:210
1502721300,4chrt15029-21latency_hist10:10:010
2546221240,4chrt25464-21sh08:45:000
2302921240,3sleep023030-21/usr/sbin/munin10:40:180
263621210,2sleep02635-21open_inodes07:15:270
922991169,93cyclictest7772-21ntp_states07:35:250
922991168,91cyclictest21848-21irqstats08:30:170
9229911511,89cyclictest19750-21seq08:20:330
922991149,90cyclictest6337-21/usr/sbin/munin07:30:170
922991147,92cyclictest32053-21/usr/sbin/munin09:10:250
922991137,90cyclictest16311-21latency_hist10:15:010
922991129,90cyclictest17122-21users08:10:290
922991129,88cyclictest269-21runrttasks07:51:090
922991118,90cyclictest29832-21switchtime11:05:300
922991118,89cyclictest12935-21ntp_states07:55:250
922991109,88cyclictest5497-21uptime07:25:290
922991109,88cyclictest10061-21if_eth009:50:170
922991108,89cyclictest12394-21munin-run10:00:010
922991107,90cyclictest2064-21munin-run09:20:010
922991107,89cyclictest28498-21/usr/sbin/munin08:55:250
922991107,87cyclictest8919-21ntp_kernel_pll_09:45:210
922991098,88cyclictest18001-21ntp_states10:20:210
922991098,87cyclictest29553-21fw_packets09:00:170
922991098,87cyclictest26224-21chrt08:45:460
922991098,87cyclictest22189-21snmpd09:25:020
922991098,86cyclictest20579-21ntp_states10:30:260
9229910915,84cyclictest269-21runrttasks11:36:050
922991089,87cyclictest4828-21df_inode09:30:130
922991089,85cyclictest31352-21seq11:11:300
922991089,85cyclictest19506-21chrt12:30:530
922991088,86cyclictest2057-21/usr/sbin/munin11:25:290
922991088,86cyclictest12674-21irqstats10:00:170
922991088,75cyclictest12199-21sshd12:04:300
922991087,88cyclictest4465-21chrt07:22:250
922991087,87cyclictest9088-21runrttasks07:40:250
922991087,87cyclictest8503-21/usr/sbin/munin11:50:130
922991079,85cyclictest3538-21df09:25:130
922991079,85cyclictest18733-21munin-run12:30:010
922991079,85cyclictest107152sleep007:45:450
922991078,88cyclictest21712-21irqstats10:35:170
922991078,87cyclictest269-21runrttasks12:10:250
922991078,86cyclictest9839-21df11:55:130
922991078,85cyclictest29268-21ls11:05:010
922991077,87cyclictest7997-21runrttasks11:46:530
922991077,87cyclictest26592-21seq10:54:570
922991077,86cyclictest22994-21/usr/sbin/munin08:35:290
922991077,85cyclictest31961-21chrt11:15:130
922991077,85cyclictest26983-21/usr/sbin/munin10:55:210
922991077,85cyclictest19848-21sshd10:27:290
922991076,88cyclictest16243-21chrt08:08:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional