yup, works for me, thanks andi. Andi Gutmans <[EMAIL PROTECTED]> wrote: > > Tom, > > This should be fixed now. Please update your Zend CVS and let me know if it > works for you. > > Andi > > At 08:06 PM 12/8/2002 -0800, Tom Fishwick wrote: > >I was reading an email from stdin. But regardless of bad coding style > >:-), the script is using _way_ more memory than it should. > > > >$s = ''; > >while(strlen($s) < 266768) { > > $s.= 'd'; > >} > > > >this code uses 151Megs on my system. the same code uses about 2megs with > >php4.3. php4.3 seems to realloc/memcpy when the string gets big, and > >php5 just does malloc's and memcpy's (I don't see calls to free() > >though). I'm thinking the problem might be in zend_mm_realloc? > > > >Tom > > > >Andi Gutmans <[EMAIL PROTECTED]> wrote: > > > > > > At 12:30 AM 12/8/2002 -0800, Tom wrote: > > > >hey there, > > > > > > > >I'm using the cvs and ZE2, there seems to be some huge memory usage when > > > >concatenating a string to a length over 262080 bytes, when the string > > > >length gets to that size the malloc call inside > > > >zend_mm_add_memory_block starts grabing memory 262168 bytes at a time, > > > >every 8th concatenation (i'm concatenating 1 byte at a time). > > > > > > > >anyone else seen this? > > > > > > It makes sense that this is happening to you. Reaching the point where you > > > add to a string of such size is very bad coding practice (unless you > > really > > > have no choice). This is because if the memory manager can't realloc() (it > > > very often can't) then it'll have to allocate a new block and use a > > > memcpy() to copy over all of the string. > > > The current code is less than optimal in this case and I can choose > > various > > > strategies to improve on it but there will always be times where the > > > malloc()/memcpy() will be necessary. > > > So what are you doing? Is it something you have to do? > > > Andi > > > > > > > > > -- > > > PHP Development Mailing List <http://www.php.net/> > > > To unsubscribe, visit: http://www.php.net/unsub.php > > > > > > > > > >-- > >PHP Development Mailing List <http://www.php.net/> > >To unsubscribe, visit: http://www.php.net/unsub.php > > > -- > PHP Development Mailing List <http://www.php.net/> > To unsubscribe, visit: http://www.php.net/unsub.php > >
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