Re: Re: Memory investigation
| From: | larry@garfieldtech.com | Date: | Wed, 03 Mar 2010 19:16:17 +0000 |
| Subject: | Re: Re: Memory investigation | ||
| References: | 1 2 3 4 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-302516@lists.php.net to get a copy of this message | ||
That's not really what I'm after. Let me try an example:
function foo($id) {
static $foos = array();
if (empty($foos[$id]) {
$foos[$id] = load_foo($id);} return $foos[$id]; } When load_foo() is slow (e.g., lots of DB traffic or remote-server calls or whatever), such caching can have a significant performance boost. Sometime after foo() has been called 15 times from 30 places in code, when I get to the end of the request (or just every time I call foo() would be fine) I want to be able to do something like: $cost = get_memory_used_by($foos); So that I can determine how much memory that caching is costing me over the lifetime of the page, and determine if it's a worthwhile trade-off. --Larry Garfield dsiembab01@gmail.com wrote:
function check_memory_usage(&$memory)
{
$memory[] = memory_get_usage();
return $memory;
}
something like this?
you can put it wherever you like and returns an array for further processing. You could optionally add a second argument to set the index to a name and check if the name exists to add 1 to the end of the name so your indexes stay maintained.