You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-09-15 - 06:30

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 #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 20 highest latencies:
System rackbslot7s.osadl.org (updated Sun Sep 15, 2024 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
210292669718,6668sleep020840-21kworker/0:222:32:270
238532592815,5901sleep39682-21kworker/3:019:18:273
3549217149,1690sleep03506-21apt-get23:19:520
16054210749,1049sleep38265-1kworker/3:1H20:34:273
2965428947,851sleep229696-21ntpq22:59:392
2965428947,851sleep229696-21ntpq22:59:392
19037272611,698sleep019165-21/usr/sbin/munin22:24:480
3235926356,620sleep38265-1kworker/3:1H19:44:363
3235926356,620sleep38265-1kworker/3:1H19:44:363
818261719,582sleep3827-21/usr/sbin/munin21:29:313
1207258115,552sleep11213-21ntpq21:29:411
23374256216,527sleep123500-21/usr/sbin/munin00:19:461
1418251277,350sleep21433-21fschecks_count19:49:322
1480247591,261sleep21620-21latency_hist23:14:162
296223299,305sleep23000-21idleruntime-cro23:19:132
402229440,162sleep2482-21threads19:45:042
402229440,162sleep2482-21threads19:45:042
13939227413,243sleep314059-21grep23:49:433
1006522279,26sleep20-21swapper/223:39:332
9766220328,114sleep29913-21sed23:39:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional