Messages in this thread |  | | Date | Wed, 25 Oct 2000 10:37:35 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: PATCH: killing read_ahead[] |
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On Wed, 25 Oct 2000, Rik van Riel wrote: > > OTOH, block-dev readahead makes sense for filesystems where > the packing locality is close to the access pattern BUT NOT > close to anything the page cache would recognise as being > close.
I dunno. The main reason I'd like to get the block devices into the page cache is that right now there is no way to mmap them - something that can potentially be _very_ useful, regardless of readahead.
And quite frankly, the generic file readahead has been pounded upon and tested a lot more than the block device read-ahead ever was. I bet it performs better if for no other reason.
Linus
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