You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2023-03-31 - 04:20

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 
Special  All - All RT - Optimization - Ethernet - Thumbnails - Next
  

ARM Freescale i.MX535 @1000 MHz, Linux 4.19.142-rt63+ (Profile)

Latency plot of shadow in rack #4, slot #6
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l50000000 -m -n -a0 -t1 -p99 -h400 -i400 -q
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 20 highest latencies:
System rack4slot6s.osadl.org (updated Fri Mar 31, 2023 00:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2693622590,2sleep026935-21grep20:40:220
1575122570,2sleep015752-21load22:05:180
2065421590,3sleep020651-21grep00:35:010
2049021400,4chrt20491-21/usr/sbin/munin20:15:250
1829721360,3sleep018296-21cat22:15:180
441521340,3sleep04417-21grep19:10:260
930921260,4chrt9307-21memory21:40:190
1340121190,3chrt13399-21sendmail_mailtr21:55:260
424221150,3chrt4243-21ntp_offset21:20:220
1649821130,4chrt16501-21latency20:00:180
1433021020,4sleep014275-21/usr/sbin/munin22:00:170
3128621010,4sleep031292-21df_inode23:10:140
1906021000,5sleep019085-21memory20:10:200
5852990,2sleep0583-21timerandwakeup23:15:350
105732960,3sleep010610-21load19:35:190
246742950,4sleep024742-21sed22:45:020
183822880,4sleep018383-21sshd20:06:530
130752845,9sleep013080-21df_inode19:45:160
84682824,65sleep08471-21vmstat19:25:370
208692820,4sleep020886-21/usr/sbin/munin00:35:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional