Re: free allocated memory: HOW ?

Arthur Erdös wrote: >> int memory_get_usage ( [bool $real_usage] ) >> >> Returns the amount of memory, in bytes, that's currently being allocated to your PHP >> script. >> >> it returns the number of *bytes* !!! > > sure, and memory_get_usage()/1048576 returns the number of megs, or am i > wrong? o_O > >>>> exactly how much ram does the server in question have that you can >>>> allow a single script to schlock up almost 2gigs ?? >>> dev machine 4 GB, webserver 8 GB of RAM >> does running top in the cmdline confirm that the script is really eating 100's of >> Megs? >> > > OMFG, YES it does... top shows the script eating 658 megs right after > reading the template (~125 megs before) don't OMFG me - I can't read your cmdline from here you know, and I'm not the one with a completely borked script/system/whatever. php will not turn a 20.7Kb file into 400+ Megs of consumed memory - unless your read and store it in memory 20000 odd times. which still leaves the question as to what is taking 125 Megs of RAM *before* you even start processing. > > the read method does following: > > // read the newsletter template > $fh = fopen($file, 'r'); > $theData = fread($fh, filesize($file)); > fclose($fh); > return $theData; which can more succinctly be written as: return file_get_contents($file); > >>> the size of the template is 20.7 Kb >> no way in hell that 20.7Kb turns into 270 Megs if you read the file into php. >> >> are you experiencing severe load on the server whilst the script is running? >> and/or is the script actually very, very slow? > > well, the script is not very, very slow... it takes ~3-4 seconds to > generate each newsletter (including database querys for the customized > data) 3-4 seconds is dead slow if you ask me - a script like this should be capable of making the average mailserver go completely apeshit assuming you'd be mailing the newsletters out directly after creating them [rather than storing them in a db] (i.e. pumping out lots of emails a second] ... I know this because I have a qmail server that has trouble keeping up with my massmailer scripts. >