APC

installer php APC sur sme8 (http://www.php.net/manual/en/apc.installation.php)

yum install php-pear
yum install php-devel
yum install httpd-devel
yum install gcc
yum install pcre-devel
 pecl install apc

répondre aux questions

résultat

Libraries have been installed in:
   /var/tmp/pear-build-root/APC-3.1.13/modules

If you ever happen to want to link against installed libraries
in a given directory, LIBDIR, you must either use libtool, and
specify the full pathname of the library, or use the `-LLIBDIR'
flag during linking and do at least one of the following:
   - add LIBDIR to the `LD_LIBRARY_PATH' environment variable
     during execution
   - add LIBDIR to the `LD_RUN_PATH' environment variable
     during linking
   - use the `-Wl,--rpath -Wl,LIBDIR' linker flag
   - have your system administrator add LIBDIR to `/etc/ld.so.conf'

See any operating system documentation about shared libraries for
more information, such as the ld(1) and ld.so(8) manual pages.
----------------------------------------------------------------------

Build complete.
Don't forget to run 'make test'.

running: make INSTALL_ROOT="/var/tmp/pear-build-root/install-APC-3.1.13" install
Installing shared extensions:     /var/tmp/pear-build-root/install-APC-3.1.13/usr/lib64/php/modules/
Installing header files:          /var/tmp/pear-build-root/install-APC-3.1.13/usr/include/php/
running: find "/var/tmp/pear-build-root/install-APC-3.1.13" -ls
233242626    4 drwxr-xr-x   3 root     root         4096 juin 17 14:07 /var/tmp/pear-build-root/install-APC-3.1.13
233242692    4 drwxr-xr-x   4 root     root         4096 juin 17 14:07 /var/tmp/pear-build-root/install-APC-3.1.13/usr
233242696    4 drwxr-xr-x   3 root     root         4096 juin 17 14:07 /var/tmp/pear-build-root/install-APC-3.1.13/usr/include
233242697    4 drwxr-xr-x   3 root     root         4096 juin 17 14:07 /var/tmp/pear-build-root/install-APC-3.1.13/usr/include/php
233242698    4 drwxr-xr-x   3 root     root         4096 juin 17 14:07 /var/tmp/pear-build-root/install-APC-3.1.13/usr/include/php/ext
233242699    4 drwxr-xr-x   2 root     root         4096 juin 17 14:07 /var/tmp/pear-build-root/install-APC-3.1.13/usr/include/php/ext/apc
233242700    4 -rw-r--r--   1 root     root         3357 juin 17 14:07 /var/tmp/pear-build-root/install-APC-3.1.13/usr/include/php/ext/apc/apc_serializer.h
233242693    4 drwxr-xr-x   3 root     root         4096 juin 17 14:07 /var/tmp/pear-build-root/install-APC-3.1.13/usr/lib64
233242694    4 drwxr-xr-x   3 root     root         4096 juin 17 14:07 /var/tmp/pear-build-root/install-APC-3.1.13/usr/lib64/php
233242695    4 drwxr-xr-x   2 root     root         4096 juin 17 14:07 /var/tmp/pear-build-root/install-APC-3.1.13/usr/lib64/php/modules
233242691  680 -rwxr-xr-x   1 root     root       688778 juin 17 14:07 /var/tmp/pear-build-root/install-APC-3.1.13/usr/lib64/php/modules/apc.so

Build process completed successfully
Installing '/var/tmp/pear-build-root/install-APC-3.1.13//usr/include/php/ext/apc/apc_serializer.h'
Installing '/var/tmp/pear-build-root/install-APC-3.1.13//usr/lib64/php/modules/apc.so'

Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those   methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'America/New_York' for 'EDT/-4.0/DST' instead in PEAR/Validate.php on line 454

Warning: strtotime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those  methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'America/New_York' for 'EDT/-4.0/DST' instead in PEAR/Validate.php on line 486
install ok: channel://pecl.php.net/APC-3.1.13
You should add "extension=apc.so" to php.ini

puis :

mkdir --parent /etc/e-smith/templates-custom/etc/php.ini/
echo "extension=apc.so"> /etc/e-smith/templates-custom/etc/php.ini/99apc
expand-template /etc/php.ini
service httpd-e-smith restart

perso après un petit

cp /usr/share/pear/apc.php /home/e-smith/files/ibays/Primary/html/

j'Ai pu voir que le 32 M de cache etait pqas suffisant seulement 55% de hits dans le cache et renouvellement incessant. solution :

echo "apc.shm_size= 64M">>/etc/e-smith/templates-custom/etc/php.ini/99apc
expand-template /etc/php.ini
service httpd-e-smith restart

notes

verifier sshmax kernel

cat /proc/sys/kernel/shmmax

modifier temproairement

 sysctl -w kernel.shmmax=536870912

prise en compte a chaque reboot

mkdir --parent /etc/e-smith/templates-custom/etc/sysctl.conf
echo "kernel.shmmax=536870912" >/etc/e-smith/templates-custom/etc/sysctl.conf/99sshmax
expand-template /etc/sysctl.conf