You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-04-20 - 00:13

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 #b, 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.

Note that this system runs a non-RT kernel.
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 rackbslot7s.osadl.org (updated Fri Apr 19, 2024 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17752492121,4889sleep31716-21kworker/3:209:46:293
29600227017,2677sleep36313-1kworker/3:1H07:47:123
23626210077,962sleep323667-21ntpq10:57:153
14266287311,846sleep06299-1kworker/0:1H08:41:490
4547259016,558sleep04557-21/usr/sbin/munin08:11:570
19072241522,377sleep219127-21/usr/sbin/munin10:42:202
2300624079,385sleep016131-21kworker/0:210:56:440
9701236372,270sleep30-21swapper/308:27:143
9701236372,270sleep30-21swapper/308:27:143
17661229810,273sleep317676-21kernelversion08:52:013
13858228384,180sleep313991-21latency_hist08:41:403
19898227290,104sleep319910-21apt-get10:46:493
341223580,100sleep3400-21latency11:26:593
21226222014,189sleep221362-21awk12:32:122
11591221847,123sleep311632-21ntpq12:02:003
18492221611,191sleep218496-21ntpq07:12:312
18054220930,157sleep318161-21timerandwakeup12:22:073
26402220011,78sleep326279-21/usr/sbin/munin11:07:043
3373219619,12sleep30-21swapper/308:07:073
19617219072,24sleep30-21swapper/312:27:083
17070218915,152sleep30-21swapper/307:11:393
19247218716,145sleep30-21swapper/308:57:023
943521838,16sleep30-21swapper/311:56:393
2803218312,127sleep30-21swapper/309:47:133
768421819,152sleep00-21swapper/008:21:580
21153217911,153sleep121223-21find12:32:111
20612217827,139sleep320644-21tune2fs09:01:553
21861217772,79sleep321973-21unixbench_multi07:22:133
21796217574,85sleep321799-21cron12:36:373
1070421747,154sleep310767-21if_eth010:16:533
17051216417,128sleep217068-21idleruntime-cro07:11:382
3946216121,112sleep04075-21unixbench_singl11:37:100
29626216027,80sleep30-21swapper/309:31:393
7023215922,82sleep37062-21latency10:01:593
8908215723,117sleep18977-21sed08:26:391
1760621578,136sleep317676-21switchtime10:37:243
1760621578,136sleep317676-21switchtime10:37:243
3062921525,28sleep30-21swapper/311:20:453
5810214534,96sleep35906-21latency_hist08:16:403
2323321458,118sleep30-21swapper/307:27:143
1382321425,27sleep30-21swapper/312:09:073
869421405,29sleep30-21swapper/308:24:353
753421397,28sleep30-21swapper/311:48:153
1055621396,117sleep30-21swapper/311:57:123
1738213634,20sleep30-21swapper/308:02:023
31523213020,88sleep031591-21fschecks_time09:36:570
6682212755,59sleep36806-21timerwakeupswit08:17:083
25687212716,98sleep025722-21ps09:17:060
25687212716,98sleep025722-21ps09:17:060
7603212614,75sleep20-21swapper/210:02:102
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional