Messages in this thread | | | Date | Sun, 8 Mar 1998 13:15:45 +0000 (GMT) | From | Chris Evans <> | Subject | Re: mmap() versus read() |
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On Sun, 8 Mar 1998, Erik Corry wrote:
> Take a look at madvise for Solaris. You can say for a > mmaped area that you are going to read sequentially (do > lots of readahead), read randomly (do no readahead at all), > that you are going to need an area soon, or that you are > (probably) not going to need the area at all any more.
I see no reason for an madvise() -- the kernel should be able to monitor faults and if they are sequential, decided for _itself_ that lots of readahead is a good idea. Calling madvise() is still incurring the overhead of a system call too.
Chris
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