Experimental Physics and
Industrial Control System

Kate Feng <[email protected]> · Sat, 10 Jan 2009 21:33:23 -0500

Till Straumann wrote:

Matt Rippa wrote:

Hi all-

I've setup an mvme2700 with RTEMS and an exampleApp (R3.14.10). I was

wondering how my catime results compare with other sites using other

boards or OS. Is there an expectation for a 10/100 port?

I've already seen the notes on the mvme-5500 and it looks like my

setup isn't quite as good:

http://www.aps.anl.gov/epics/tech-talk/2005/msg00265.php

Your numbers (except for the async get test which indeed looks bad)

are very similar

to what I got on the SVGM board (IIRC CPU similar to mvme2700). The

mvme5500

is quite a bit more powerful so you can't expect to get the same

performance.

What exactly is the catime performance on the beatink BSP ?

Bob Dalesio wrote :

> I am looking for any measurements made on Channel Access performance

on an installed system.

Ciao!  The performance of the installed system at NSLS are
"not slower" than the data I have published so far.

Cheers,
Kate

T.

Perhaps my subnet is busy.

Best regards,
Matt Rippa

--
> catime mrippa:aiExample
Testing with 10000 channels named mrippa:aiExample
channel connect test
Elapsed Per Item =   0.00042084 sec,     2376.2 Items per sec, 1.3 Mbps

Search tries per chan - mean=1.032500 std dev=0.203577 min=1.000000

max=3.000000

channel name=mrippa:aiExample, native type=6, native count=1
        pend event test
Elapsed Per Item =   0.00000342 sec,   292758.6 Items per sec
float test
        async put test
Elapsed Per Item =   0.00000897 sec,   111438.1 Items per sec, 15.2 Mbps
        async get test
Elapsed Per Item =   0.00019678 sec,     5081.7 Items per sec, 1.3 Mbps
        synch get test
Elapsed Per Item =   0.00022803 sec,     4385.4 Items per sec, 1.2 Mbps
double test
        async put test
Elapsed Per Item =   0.00000898 sec,   111321.7 Items per sec, 15.1 Mbps
        async get test
Elapsed Per Item =   0.00019742 sec,     5065.3 Items per sec, 1.3 Mbps
        synch get test
Elapsed Per Item =   0.00023804 sec,     4201.0 Items per sec, 1.1 Mbps
string test
        async put test
Elapsed Per Item =   0.00001010 sec,    99040.4 Items per sec, 16.6 Mbps
        async get test
Elapsed Per Item =   0.00019695 sec,     5077.3 Items per sec, 1.5 Mbps
        synch get test
Elapsed Per Item =   0.00022858 sec,     4374.8 Items per sec, 1.3 Mbps
integer test
        async put test
Elapsed Per Item =   0.00000906 sec,   110324.7 Items per sec, 15.0 Mbps
        async get test
Elapsed Per Item =   0.00022911 sec,     4364.7 Items per sec, 1.2 Mbps
        synch get test
Elapsed Per Item =   0.00022638 sec,     4417.3 Items per sec, 1.2 Mbps
round trip jitter test

Round trip get delays - mean=0.000228 sec, std dev=0.000008 sec,

min=0.000221 sec max=0.000469 sec

free test
Elapsed Per Item =   0.00000056 sec,  1794331.9 Items per sec, 0.0 Mbps

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System