Hi Bill and all,
not sure what is the right way for comparison between using and not
using APR. I tried Apache ab tool like this:
ab -c 4 -n 10000 http://localhost:8080/favicon.ico
And I don't see any difference. Actually it might be little bit slower
with APR. The file size is 21630, so it should use sendfile then (well
actually our APR doesn't use sendfile at the moment as far as I know).
And the other issue is stability with APR. When I configure Tomcat to
use SSL via APR it works for simple requests. But using huge amount of
requests with ab it will fail (and tomcat is no longer responding to any
request):
bash-3.00# /usr/apache2/bin/ab -c 4 -n 10000
https://localhost:443/favicon.ico
This is ApacheBench, Version 2.0.40-dev <$Revision: 1.146 $> apache-2.0
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Copyright 2006 The Apache Software Foundation, http://www.apache.org/
Benchmarking localhost (be patient)
SSL handshake failed (5).
Test aborted after 10 failures
apr_socket_connect(): Connection refused (146)
Total of 1 requests completed
--
Any comment to this?
Petr
Bill Barker wrote:
"Petr Sumbera" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
Hi Guys,
Does anybody have experience or even better some numbers comparing
performance of Tomcat running with and without Tomcat native library
(libtcnative-1)?
I don't see any comparable difference so far (using TC 5.5.23, Native
Library 1.1.10, Solaris/i386).
On Solaris there wasn't a big difference last time I profiled it. On
Solaris, it doesn't cost much to have a large number of threads blocking on
input, so you don't get a lot from the APR Poller. Also, the Solaris JVM is
pretty optimized for the OS. From testing with the AJP Connectors, you
might have noticible improvements with TC 6 and the NIO Connector on
Solaris, but I haven't profiled it myself.
It's with Linux boxes (I haven't seen reports for other *nixs) with older
kernels that you see the most improvement when using the APR Connector.
Cheers,
Petr
---------------------------------------------------------------------
To start a new topic, e-mail: users@tomcat.apache.org
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
---------------------------------------------------------------------
To start a new topic, e-mail: users@tomcat.apache.org
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
