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Subject: Comparing catime performance
From: Matt Rippa <mrippa@gemini.edu>
To: EPICS-tech-talk <tech-talk@aps.anl.gov>
Date: Thu, 08 Jan 2009 18:40:55 -1000
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

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


Replies:
Re: Comparing catime performance Till Straumann
Re: Comparing catime performance Andrew Johnson

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