Hi Dinh,
sorry, I don't get why having a wrong include_path configuration inside WP
should have a negative outcome like have 8 tentatives in order to read this
file.
Regards,
Vincenzo
On Sun, Jun 20, 2010 at 9:26 AM, Dinh <pcd...@gmail.com> wrote:
> Hi,
>
> Unfortunately, your web application abused include_path. You can change WP
> source code to include PHP files using absolute path
>
> Regards,
>
> Dinh
>
> On Sun, Jun 20, 2010 at 1:49 PM, Vincenzo D'Amore <v.dam...@gmail.com>wrote:
>
>> Hello,
>>
>> to have a performance problem with apache/mod_php5 configuration under
>> heavy
>> load the website becomes too slow.
>> Using strace I found what appears to me a strange behavior
>> The strange behavior I want point out is related to a sequence of
>> tentative
>> httpd/mod_php5 does in order to read an php page.
>>
>> In this particular case apache httpd servers tries 8 times before reach
>> and
>> read the file (if you want I can send the complete strace output)
>> More strange all these tentative seems to be correctly completed because
>> of
>> success (0) return code for each line.
>> Ffor every file should be served by apache httpd, apache httpd tries to
>> lstat all directory in path more times:
>>
>> lstat("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>> lstat("/usr/local", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>> lstat("/usr/local/sitipersonali", {st_mode=S_IFDIR|0755, st_size=4096,
>> ...})
>> = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08", {st_mode=S_IFDIR|0777,
>> st_size=1024, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP",
>> {st_mode=S_IFDIR|0755,
>> st_size=13312, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa",
>> {st_mode=S_IFDIR|0755, st_size=80, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al",
>> {st_mode=S_IFDIR|0755, st_size=80, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps",
>> {st_mode=S_IFDIR|0750, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs",
>> {st_mode=S_IFDIR|0755, st_size=2048, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content",
>> {st_mode=S_IFDIR|0777, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content/languages",
>> {st_mode=S_IFDIR|0777, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content/languages/zh_CN.php",
>> {st_mode=S_IFREG|0777, st_size=1312, ...}) = 0
>>
>> *FIRST TENTATIVE*
>>
>> lstat("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>> lstat("/usr/local", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>> lstat("/usr/local/sitipersonali", {st_mode=S_IFDIR|0755, st_size=4096,
>> ...})
>> = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08", {st_mode=S_IFDIR|0777,
>> st_size=1024, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP",
>> {st_mode=S_IFDIR|0755,
>> st_size=13312, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa",
>> {st_mode=S_IFDIR|0755, st_size=80, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al",
>> {st_mode=S_IFDIR|0755, st_size=80, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps",
>> {st_mode=S_IFDIR|0750, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs",
>> {st_mode=S_IFDIR|0755, st_size=2048, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content",
>> {st_mode=S_IFDIR|0777, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content/languages",
>> {st_mode=S_IFDIR|0777, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content/languages/zh_CN.php",
>> {st_mode=S_IFREG|0777, st_size=1312, ...}) = 0
>>
>> *SECOND*
>>
>> lstat("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>> lstat("/usr/local", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>> lstat("/usr/local/sitipersonali", {st_mode=S_IFDIR|0755, st_size=4096,
>> ...})
>> = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08", {st_mode=S_IFDIR|0777,
>> st_size=1024, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP",
>> {st_mode=S_IFDIR|0755,
>> st_size=13312, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa",
>> {st_mode=S_IFDIR|0755, st_size=80, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al",
>> {st_mode=S_IFDIR|0755, st_size=80, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps",
>> {st_mode=S_IFDIR|0750, st_size=1024, ...}) = 0
>>
>> access("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content/languages/zh_CN.php",
>> R_OK) = 0
>>
>> *THIRD*
>>
>> lstat("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>> lstat("/usr/local", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>> lstat("/usr/local/sitipersonali", {st_mode=S_IFDIR|0755, st_size=4096,
>> ...})
>> = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08", {st_mode=S_IFDIR|0777,
>> st_size=1024, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP",
>> {st_mode=S_IFDIR|0755,
>> st_size=13312, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa",
>> {st_mode=S_IFDIR|0755, st_size=80, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al",
>> {st_mode=S_IFDIR|0755, st_size=80, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps",
>> {st_mode=S_IFDIR|0750, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs",
>> {st_mode=S_IFDIR|0755, st_size=2048, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content",
>> {st_mode=S_IFDIR|0777, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content/languages",
>> {st_mode=S_IFDIR|0777, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content/languages/zh_CN.php",
>> {st_mode=S_IFREG|0777, st_size=1312, ...}) = 0
>>
>> *FOURTH*
>>
>> lstat("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>> lstat("/usr/local", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>> lstat("/usr/local/sitipersonali", {st_mode=S_IFDIR|0755, st_size=4096,
>> ...})
>> = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08", {st_mode=S_IFDIR|0777,
>> st_size=1024, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP",
>> {st_mode=S_IFDIR|0755,
>> st_size=13312, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa",
>> {st_mode=S_IFDIR|0755, st_size=80, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al",
>> {st_mode=S_IFDIR|0755, st_size=80, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps",
>> {st_mode=S_IFDIR|0750, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs",
>> {st_mode=S_IFDIR|0755, st_size=2048, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content",
>> {st_mode=S_IFDIR|0777, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content/languages",
>> {st_mode=S_IFDIR|0777, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content/languages/zh_CN.php",
>> {st_mode=S_IFREG|0777, st_size=1312, ...}) = 0
>>
>> *FIFTH*
>>
>> lstat("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>> lstat("/usr/local", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>> lstat("/usr/local/sitipersonali", {st_mode=S_IFDIR|0755, st_size=4096,
>> ...})
>> = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08", {st_mode=S_IFDIR|0777,
>> st_size=1024, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP",
>> {st_mode=S_IFDIR|0755,
>> st_size=13312, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa",
>> {st_mode=S_IFDIR|0755, st_size=80, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al",
>> {st_mode=S_IFDIR|0755, st_size=80, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps",
>> {st_mode=S_IFDIR|0750, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs",
>> {st_mode=S_IFDIR|0755, st_size=2048, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content",
>> {st_mode=S_IFDIR|0777, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content/languages",
>> {st_mode=S_IFDIR|0777, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content/languages/zh_CN.php",
>> {st_mode=S_IFREG|0777, st_size=1312, ...}) = 0
>>
>> *SIXTH*
>>
>> lstat("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>> lstat("/usr/local", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>> lstat("/usr/local/sitipersonali", {st_mode=S_IFDIR|0755, st_size=4096,
>> ...})
>> = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08", {st_mode=S_IFDIR|0777,
>> st_size=1024, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP",
>> {st_mode=S_IFDIR|0755,
>> st_size=13312, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa",
>> {st_mode=S_IFDIR|0755, st_size=80, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al",
>> {st_mode=S_IFDIR|0755, st_size=80, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps",
>> {st_mode=S_IFDIR|0750, st_size=1024, ...}) = 0
>>
>> *SEVENTH (blocked in the middle of path scan)*
>>
>> lstat("/usr", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>> lstat("/usr/local", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
>> lstat("/usr/local/sitipersonali", {st_mode=S_IFDIR|0755, st_size=4096,
>> ...})
>> = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08", {st_mode=S_IFDIR|0777,
>> st_size=1024, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP",
>> {st_mode=S_IFDIR|0755,
>> st_size=13312, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa",
>> {st_mode=S_IFDIR|0755, st_size=80, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al",
>> {st_mode=S_IFDIR|0755, st_size=80, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps",
>> {st_mode=S_IFDIR|0750, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451",
>> {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs",
>> {st_mode=S_IFDIR|0755, st_size=2048, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content",
>> {st_mode=S_IFDIR|0777, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content/languages",
>> {st_mode=S_IFDIR|0777, st_size=1024, ...}) = 0
>>
>> lstat("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content/languages/zh_CN.php",
>> {st_mode=S_IFREG|0777, st_size=1312, ...}) = 0
>>
>> *EIGHT AND FINALLY READ THE FILE*
>>
>>
>> open("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content/languages/zh_CN.php",
>> O_RDONLY) = 416
>> fstat(416, {st_mode=S_IFREG|0777, st_size=1312, ...}) = 0
>>
>> open("/usr/local/sitipersonali/sitipersonali08/NSP/wa/al/wall/webspace/siteapps/21451/htdocs/wp-content/languages/zh_CN.php",
>> O_RDONLY) = 417
>> fstat(417, {st_mode=S_IFREG|0777, st_size=1312, ...}) = 0
>> mmap(NULL, 1312, PROT_READ, MAP_SHARED, 417, 0) = 0x2b4a96443000
>> munmap(0x2b4a96443000, 1312) = 0
>> close(417) = 0
>> read(416, "<?php\r\n// Make the admin interfa"..., 8192) = 1312
>> read(416, "", 8192) = 0
>> read(416, "", 8192) = 0
>> close(416) = 0
>>
>> Could anybody explain me why I have this behavior and if it is
>> attributable
>> to a misconfiguration of php?
>>
>> Best regards,
>> Vincenzo
>>
>
>
>
> --
> Spica Framework: http://code.google.com/p/spica
> http://www.twitter.com/pcdinh
> http://groups.google.com/group/phpvietnam
>
--
Vincenzo D'Amore
email: v.dam...@gmail.com
msn: free...@hotmail.com
skype: free.dev
mobile: +39 349 8513251
