So, we have determined we are cpu-bound and we need to go faster. What can we do?
Some low-hanging fruit:
include_path = "/usr/share/pear:."
]]>
open_basedir = "/usr/share/htdocs/:/usr/share/pear/"
open_basedir checking adds some extra syscalls to every file operation. It can be useful,
but it is rather expensive, so turn it off if you don't think you need it.
variables_order = "GPC"
]]>
If you never use cookies, turn those off too
zend_extension=/usr/local/lib/php/20020429/apc.so
apc.enabled=1
apc.shm_segments=1
apc.optimization=0
apc.shm_size=30
apc.num_files_hint=10
apc.gc_ttl=10
apc.mmap_file_mask=/tmp/apc.XXXXXX
apc.filters=
| 156 request/sec | Standard PHP 4.3 | |
161 requests/sec | Fix include_path, and only populate GP | |
191 requests/sec | Add IonCube Accelerator on top | |
196 requests/sec | APC no optimizer, IPC shared mem + semaphore locking | |
198 requests/sec | Turck MMCache no optimizer with spinlocks | |
200 requests/sec | APC no optimizer, mmap mem + user space sleep locks | |
202 requests/sec | Turck MMCache with optimizer and spinlocks | |