Re: [j-devel] strange performance

[Andras S. <as...@ma...>]

On Tue, 8 Feb 2005, Alex Mizrahi wrote:

> Hello, All!
>
> i have strange performance issues when ABCL works with sevlet -- from
> debugger (that is separate thread, spawned by lisp itself) function that
> generates html works about 4 msecs, but in servlet itself (that runs in
> threads spawned by web-server) it works about 100 msecs, that is not very
> good 8-]
> i believe problem is with threads -- something like if they are not
> initialized, variable lookup is too slow. can i do something with it?

I can't comment on this.

>
> by the way, i've tried working with SQL server from ABCL -- works quite
> fine. so i'm going to try using it in some quite serious web-dev project
> (after some more stability test) -- i believe it will be faster and more
> pleasant to do in Common Lisp than in PHP even if i'll have to do some tools
> and somewhat debug implementation 8-] so far it appears to be quite
> stable -- better than in my previous experience with CMUCL with mod_lisp. i
> even tried to compile function while it's being benchmarked by two
> processes -- it didn't crash, and looks like became somewhat faster 8-]

If you do a lot of calls to Java, you might want to give
http://www.math.bme.hu/~asimon/lisp/jfli-abcl.tar a try. I cleaned it
up a bit a few weeks ago, so it may actually work.

(This is OT, but if you get desperate, have a look at CMUCL + Portable
Aserve; it's quite stable and fast. And certainly more joy than PHP.)

Andras