Question

I am trying to get the Xdebug profiler on OS X Lion to output files like it’s supposed to, but it won’t. I can debug OK and code coverage also works, but I cannot get it to output the cachegrind files.

Relevant section of my php.ini:

zend_extension = /usr/lib/php/extensions/no-debug-non-zts-20090626/xdebug.so
xdebug.remote_enable=on
xdebug.remote_host=localhost
xdebug.remote_handler=dbgp
xdebug.remote_port=9000
xdebug.profiler_enable=1
xdebug.profiler_output_dir = /var/log/xdebug
xdebug.profiler_output_name = "cachegrind.out.%t-%R"

include_path=".:/usr/lib/php/pear"
magic_quotes_gpc=off
date.timezone = 'Europe/Berlin'
extension = memcached.so
extension = http.so
memory_limit=1G

Answer 1

Two things I can think off:

1. The user under which PHP runs can’t write files to /var/log/xdebug
2. The filename it’s trying to generate (you use %R after all!) is too large for the filesystem to understand. Try using the default for xdebug.profiler_output_name.