On Sun, Jun 06, 2010 at 08:53:03PM +0200, Stefan Fritsch wrote:
On Sunday 06 June 2010, Brian Pane wrote:
As long as the documentation explained to users that they need to
have enough memory to accommodate MaxClient *
MaxOutputBufferedPerRequest (where the latter is a hypothetical
name
On 16 Jun 2010, at 10:45 AM, Joe Orton wrote:
There is already mod_buffer in trunk. From reading the docs, it
should
be suitable for this purpose. Or is it missing some functionality?
You can get many of the benefits of using a memory buffer in the
output
filter chain very cheaply by
On Wed, Jun 16, 2010 at 12:05:21PM +0200, Graham Leggett wrote:
On 16 Jun 2010, at 10:45 AM, Joe Orton wrote:
There is already mod_buffer in trunk. From reading the docs, it
should
be suitable for this purpose. Or is it missing some functionality?
You can get many of the benefits of using
On 16 Jun 2010, at 12:49 PM, Joe Orton wrote:
The core output filter should coalesce small writes already and if
it's not doing that effeciently that's a bug. Are the tiny files
you
were seeing getting sendfile()d out bigger than AP_MIN_SENDFILE_BYTES?
That sounds like a case for bumping up
On Jun 9, 2010, at 12:08 PM, Akins, Brian wrote:
On 6/8/10 7:21 PM, Graham Leggett minf...@sharp.fm wrote:
That said, if your server doesn't have work to do, ie
you're just a bit-shifter, then a simple async loop will win hands down.
We also found that even for resource intensive tasks
On Jun 6, 2010, at 2:53 PM, Stefan Fritsch wrote:
On Sunday 06 June 2010, Brian Pane wrote:
On Sun, Jun 6, 2010 at 5:03 AM, Graham Leggett minf...@sharp.fm
wrote: [...]
We've also been playing with Varnish, one of the cooler things it
does is have the ability to suck up an entire response
On 6/8/10 6:34 PM, Sean Conner s...@conman.org wrote:
If your platform is x86, have you considered testing with LuaJIT? It
compiles Lua code directly into x86 code and is a drop-in replacement for
lua (just link against libluajit instead of liblua). The few tests I've
done have been
On 6/8/10 7:21 PM, Graham Leggett minf...@sharp.fm wrote:
That said, if your server doesn't have work to do, ie
you're just a bit-shifter, then a simple async loop will win hands down.
We also found that even for resource intensive tasks -- like rendering a
template or something similar --
On 2010-06-07 at 17:42, Akins, Brian brian.ak...@turner.com wrote:
On 6/7/10 9:16 AM, Dan Poirier poir...@pobox.com wrote:
Did you profile httpd? I'm wondering if you had a few non-trivial hooks
in lua, if it would be a significant part of the CPU consumption, or
would it be swamped by the
On 6/8/10 8:07 AM, Dan Poirier poir...@pobox.com wrote:
That's a shame. I wonder if another embedded language would do better?
E.g. mod_perl, mod_python? They've both been around for a while. I
wonder why neither has gotten into the server?
Lua is leaps and bounds faster than both of those
On Tue, Jun 8, 2010 at 09:34, Akins, Brian brian.ak...@turner.com wrote:
On 6/8/10 8:07 AM, Dan Poirier poir...@pobox.com wrote:
That's a shame. I wonder if another embedded language would do better?
E.g. mod_perl, mod_python? They've both been around for a while. I
wonder why neither has
It was thus said that the Great Akins, Brian once stated:
On 6/7/10 9:16 AM, Dan Poirier poir...@pobox.com wrote:
Did you profile httpd? I'm wondering if you had a few non-trivial hooks
in lua, if it would be a significant part of the CPU consumption, or
would it be swamped by the rest of
On 07 Jun 2010, at 11:46 PM, Akins, Brian wrote:
With multi-core architectures, we're finding that humble worker on
our
commodity hardware is as fast or faster than our load balancers.
+1
We soon found that the web servers spends more time doing context
switches
than actual work. (Or so
On 2010-06-04 at 18:21, Akins, Brian brian.ak...@turner.com wrote:
Also, I do a good bit with Lua -- in httpd and other projects. Every time I
run profiles on this stuff, Lua is always 3 out of the top 5 cpu consumers.
And lots of it is just the language itself (all the table look-ups) and we
On 6/7/10 9:16 AM, Dan Poirier poir...@pobox.com wrote:
Did you profile httpd? I'm wondering if you had a few non-trivial hooks
in lua, if it would be a significant part of the CPU consumption, or
would it be swamped by the rest of the processing that always goes on
for a request?
On 6/6/10 8:03 AM, Graham Leggett minf...@sharp.fm wrote:
With multi-core architectures, we're finding that humble worker on our
commodity hardware is as fast or faster than our load balancers.
+1
We soon found that the web servers spends more time doing context switches
than actual work.
a dainting task, and one that
creates many other issues.
Yeah, I thought about that as well. However, I already know C ;) A
config/runtime language built using llvm could probably be just as fast as
writing straight C.
The thing I hate about VCL is that it teases you with being C like
On 05 Jun 2010, at 12:21 AM, Akins, Brian wrote:
So, we thought about wouldn't it just be cool if Apache had VCL.
Then I
thought, I already know C, why do I need to learn a meta-language
that just
writes C??? Won't someone think of the users! I could here all of
the
#httpd folks saying.
On Sun, Jun 6, 2010 at 5:03 AM, Graham Leggett minf...@sharp.fm wrote:
[...]
We've also been playing with Varnish, one of the cooler things it does is
have the ability to suck up an entire response into a RAM buffer and
releasing the backend before playing out the response to the browser. I've
On Sunday 06 June 2010, Brian Pane wrote:
On Sun, Jun 6, 2010 at 5:03 AM, Graham Leggett minf...@sharp.fm
wrote: [...]
We've also been playing with Varnish, one of the cooler things it
does is have the ability to suck up an entire response into a
RAM buffer and releasing the backend
On 5 Jun 2010, at 03:18, Dennis J. wrote:
The nginx syntax may look C-like but it really isn't at all. For one thing
it's declarative and then you have all kinds of weird behaviors with
variables and control structures that make no sense if you're coming from
C-like angle.
I think what
anyway, so
it was just a matter of porting the Lua helpers into straight C. It took
less than 2 hours. We were sort of shocked at the results - 1/3 the memory
usage and 50% better performance (you run out of CPU eventually, no matter
what you do). Odd thing was, the code in C for the Config
All of you folks who have to answer user questions, go ahead and ready
your
hate mail :)
This is not a hate-mail (:
I've been playing some with Varnish (long story) and lots of people
seem to
like it. The config language (VCL) is just a thin wrapper on top of
C.
Heck, you can just
On Fri, Jun 4, 2010 at 3:21 PM, Akins, Brian brian.ak...@turner.com wrote:
All of you folks who have to answer user questions, go ahead and ready your
hate mail :)
I've been playing some with Varnish (long story) and lots of people seem to
like it. The config language (VCL) is just a thin
On 6/4/10 7:30 PM, Paul Querna p...@querna.org wrote:
Are you using LuaJIT 2? The performance numbers its putting up seemed
very impressive.
Yes and meh...
--
Brian Akins
On 06/05/2010 12:51 AM, Igor Galić wrote:
Not a terribly interesting read, but we are seriously considering just
using
straight C with some helper functions and macros as the config for
one of
our projects.
And, for the record I was wrong in the past - yes, async is the
answer...
I've been a
On Jun 4, 2010, at 4:32 PM, Akins, Brian brian.ak...@turner.com
wrote:
On 6/4/10 7:30 PM, Paul Querna p...@querna.org wrote:
Are you using LuaJIT 2? The performance numbers its putting up
seemed
very impressive.
Yes and meh...
bummer.
The most iteresting thing in this space
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