[theme-reviewers] PHP Memory Limits?

[Dion Hulse (dd32)]

Yeah, just to be absolutely clear, I realise Weaver has a bit more
code there than most themes, and so has the potential to hit it more
often than other themes.
If it's a common problem you're finding your users have, explaining
the issue and linking to them how to fix it is nice and reduces
support.. but it shouldn't be a requirement for a theme to increase
it, just as I wouldn't suggest a theme ever attempt to define the
memory limit itself.


On 20 March 2012 10:47, Emil Uzelac <emil at themeid.com> wrote:
> I'm not remotely as advanced as Dion, however I am 110% with you on memory
> usage. This will also literally "crash" majority of shared hosts, heck even
> VPS will suffer, no plugin or Theme should ever ask users to bump the memory
> at any times, memory limits are there for a reason ;) Just the Theme itself
> needs 64, what would happen if there's something more installed by user?
>
> Cheers,
> Emil
>
>
> On Mon, Mar 19, 2012 at 6:29 PM, Dion Hulse (dd32) <wordpress at dd32.id.au>
> wrote:
>>
>> Unfortunately, out of memory issues can't be caught from within PHP.
>>
>> WordPress does attempt to increase the default memory limit to 32M for
>> single sites, and 64M for multisite (I believe), while more intensive
>> things such as upgrades and image manipulation increases it to 256M.
>>
>> There should be a few plugins related to this, but I can't see to spot
>> any right now.. (Other than Memory Bump which attempts to increase it
>> to 256M as a way to over come the 3.0 upgrade memory issues:
>> http://wordpress.org/extend/plugins/memory-bump/ )
>> If your users need to increase the default memory allocation, they can
>> ask WordPress to attempt it, but they'll need to define the
>> WP_MEMORY_LIMIT define in their wp-config.php:
>>
>> http://codex.wordpress.org/Editing_wp-config.php#Increasing_memory_allocated_to_PHP
>>
>> But yes, Memory usage is always increasing unfortunately, although,
>> some efforts are made to reduce the memory consumption, it's not
>> always possible, especially when many plugins are added to a site.
>>
>> The move from PHP4 to PHP5 increased memory consumption, The move from
>> 32bit to 64bit PHP installs also increases memory consumption, layer
>> WordPress on top of that, and the old configuration files which have
>> 24M as the max memory that some hosts use are simply impossible (which
>> is why WordPress attempts to increase it to 32M).
>> For translated versions of WordPress, every additional string in the
>> interface adds a few more kB to the memory usage, a few more bytes
>> here and there for every additional hook/filter added, another few kB
>> for every extra feature and bug fix..
>>
>> It's not going to be specific to themes (so wp-hackers might be better
>> location for discussion) but I'm sure you'll get plenty of the blame
>> of cause when someone installed a tonne of plugins then starts
>> fiddling with their theme and just knocks it over the limit
>>
>>
>> On 20 March 2012 10:12, Bruce Wampler <weavertheme at gmail.com> wrote:
>> > Hey group -
>> >
>> > My theme, Weaver II, has a big admin interface. Recently, a few of my
>> > users
>> > that also seem to use a fair number of other plugins, as well, seem to
>> > be
>> > encountering PHP out-of-memory errors (seems to be at 32Meg PHP mem
>> > limit,
>> > which seems fairly common on shared hosts). While my interface is big,
>> > it
>> > isn't that much bigger than it was 3 or 4 months ago, so it seems to me
>> > there could be a slow overall memory usage creep happening with WP and
>> > other
>> > plugins.
>> >
>> > Unfortunately, out-of-memory doesn't seem to be caught anywhere in WP,
>> > so
>> > the users end up with a white screen.
>> >
>> > Upping the memory limit to 48M or 64M consistently fixes the issue.
>> >
>> > Just wonder if my theme is hitting a wall a bit ahead of others, or if
>> > anyone else has encountered this specific problem. Just seems that if
>> > true,
>> > there could be some dark clouds on the horizon.
>> >
>> > Bruce Wampler
>> >
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>> >
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