>
>>Perhaps automatic detection could be option? if (filesize > X)
>>blockread else mmap? It seems like the most intuitive way to implement
>>it...
>>
>
> Sounds a bit magical. Why not just a block_readfile() function?
Mainly the bloat factor, we already have a large core, imho, functions
shouldn't be added unless there are no workarounds. Also, it requires a
little too much thought, into what sizes are good for mmap() and what
sizes are good for block read's (it also requires knowledge of mmap(),
because many people might automatically assume that block_read would
always be faster). I'm pretty sure if we polled php-general and php-qa
(the more "knowledgable" user bases), most people wouldn't really
understand what mmap does, or what it is for or when it is beneficial to
use it.
As for magical, well a bit, but good magic and internal magic (not
syntactical magic). I'd assume that most systems have a certain point
where mmap is no longer more beneficial than reading a file by chunks.
If we can find a reasonable number (or have a user specify that in a
configuration option if really necessary), it saves the user the trouble
of thinking about something which is pretty low-level and it reduces
bloat. I don't really see a downside to this magic.
-Sterling
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