Re: mmap in php_passthru_fd in file.c ?

From: Date: Fri, 18 May 2001 05:40:52 +0000
Subject: Re: mmap in php_passthru_fd in file.c ?
References: 1  Groups: php.dev 
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> > True. But I guess my main issue is still that the behaviour changes > > radically based on a hidden configure check (ie. whether mmap is there > > or not) and that ensuring a block-by-block read in user space is > > inefficient for huge files. > > > > > good point... hrrmmm.... > > it seems like this is an option that should be available (somehow), yet > I don't really like adding another option to the function, as it > requires too much "smarts" on the behalf of the user (at what point does > mmap() slow things down instead of speed them up, what is mmap(), etc.) Well, we do check and only do the mmap() for files larger than the block size. > 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? -Rasmus

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