I remember a discussion about system calls here earlier. What is the
status of that?
I've been doing some tests and have found that this code runs about 2.5
times slower under 4.3.2 than it did on 4.1.2 on the same machine
(running OS X):
I did some tests with fs_usage to check file system c
Uh, the number of open() calls really shouldn't change. Are you sure you
are comparing the same code? And how are you testing? Attach strace or
truss to your running httpd process and hit your script a single time.
Then look at the output and compare them. Some of the keys to reducing
syscalls:
Here is an analysis of the situation as it stands with PHP 4.3.3. As far as I
can tell that even when opening files with the full path we do a lot of
completely unnecessary work.
We start from expand_filepath() which, gets called when opening a file. This
function does a getcwd() everytime it i
I believe those are from the realpath call. It splits the path and stats each
part to make sure it is real:
1) /
2) /home
3) /home/rei
4) /home/rei/PHP_CVS
5) /home/rei/PHP_CVS/STABLE
6) /home/rei/PHP_CVS/STABLE/php4
Brian
On Wed, 4 Jun 2003 13:27:14 -0400, Ilia A. wrote:
> Now, the interestin
On Wed, 4 Jun 2003, Ilia A. wrote:
> Here is an analysis of the situation as it stands with PHP 4.3.3. As far as I
> can tell that even when opening files with the full path we do a lot of
> completely unnecessary work.
>
> We start from expand_filepath() which, gets called when opening a file. Thi
On Wednesday, June 4, 2003, at 12:21 PM, Rasmus Lerdorf wrote:
Uh, the number of open() calls really shouldn't change. Are you sure
you
are comparing the same code?
Yes. I am sure.
And how are you testing?
I attach fs_usage to the running httpd process and hit the script a
single time.
ht
Oh, this is on OSX? I guess realpath() does an open() on every component
of a path on OSX? That's nuts!
-Rasmus
On Wed, 4 Jun 2003, Jeff Moore wrote:
>
> On Wednesday, June 4, 2003, at 12:21 PM, Rasmus Lerdorf wrote:
>
> > Uh, the number of open() calls really shouldn't change. Are you sure
At 01:27 PM 6/4/2003 -0400, Ilia A. wrote:
Here is an analysis of the situation as it stands with PHP 4.3.3. As far as I
can tell that even when opening files with the full path we do a lot of
completely unnecessary work.
We start from expand_filepath() which, gets called when opening a file. This
On Monday, June 9, 2003, at 12:58 PM, Andi Gutmans wrote:
At 01:27 PM 6/4/2003 -0400, Ilia A. wrote:
Here is an analysis of the situation as it stands with PHP 4.3.3. As
far as I
can tell that even when opening files with the full path we do a lot
of
completely unnecessary work.
We start from
There are a several things that could be done to speed file opening process
up. Attached is a fairly simple patch that in most cases optimizes
potentially expensive code that looks for ../ and ./ in the path.
Ilia
Index: TSRM/tsrm_virtual_cwd.c
=
On June 9, 2003 12:58 pm, Andi Gutmans wrote:
> At 01:27 PM 6/4/2003 -0400, Ilia A. wrote:
> >Here is an analysis of the situation as it stands with PHP 4.3.3. As far
> > as I can tell that even when opening files with the full path we do a lot
> > of completely unnecessary work.
> >
> >We start fr
On Tue, 10 Jun 2003, Ilia A. wrote:
> As far as realpath() goes beyond the _once() directives and php installations
> where safe_mode or open_basedir are enabled it is not really needed. To
> handle safe_mode/open_basedir is fairly easy and mostly involves passing
> TSRMLS_CC to virtual_file_ex() a
At 09:51 PM 6/10/2003 -0400, Ilia A. wrote:
There are a several things that could be done to speed file opening process
up. Attached is a fairly simple patch that in most cases optimizes
potentially expensive code that looks for ../ and ./ in the path.
This sounds like a weird patch to me. How many
At 06:55 PM 6/10/2003 -0700, Rasmus Lerdorf wrote:
On Tue, 10 Jun 2003, Ilia A. wrote:
> As far as realpath() goes beyond the _once() directives and php
installations
> where safe_mode or open_basedir are enabled it is not really needed. To
> handle safe_mode/open_basedir is fairly easy and mostly
At 07:15 AM 6/11/2003 +0300, Andi Gutmans wrote:
At 09:51 PM 6/10/2003 -0400, Ilia A. wrote:
There are a several things that could be done to speed file opening process
up. Attached is a fairly simple patch that in most cases optimizes
potentially expensive code that looks for ../ and ./ in the pat
Well, judging from my own experience, most people do either a full path
include, or a relative path include from the current directory such as
a/b/c.php and similar. So for these cases we can bypass tokenizing the patch
at an fairly light cost of 2 memchr() calls.
The realpath may alleviate the
At 12:52 AM 6/11/2003 -0400, Ilia A. wrote:
Well, judging from my own experience, most people do either a full path
include, or a relative path include from the current directory such as
a/b/c.php and similar. So for these cases we can bypass tokenizing the patch
at an fairly light cost of 2 memchr
On Wed, 11 Jun 2003 07:49:24 +0300 [EMAIL PROTECTED] (Andi Gutmans) wrote:
> It's really quite simple. Make a hash that holds a structure which has the
> realpath() and time of entry in it. If it's still relevant use it. If you
> want to limit the hash to X entries (no need IMO) the easy way is
At 12:14 AM 6/12/2003 +, Thomas Seifert wrote:
On Wed, 11 Jun 2003 07:49:24 +0300 [EMAIL PROTECTED] (Andi Gutmans) wrote:
> It's really quite simple. Make a hash that holds a structure which has the
> realpath() and time of entry in it. If it's still relevant use it. If you
> want to limit the
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