[patch] Re: Shared mmap write-out (was: Re: patch cow-swapin)-- 2.0, 2.1 at , least]

Andrea Arcangeli (andrea@e-mind.com)
Wed, 30 Sep 1998 16:25:37 +0200 (CEST)


On Mon, 28 Sep 1998, Andrea Arcangeli wrote:

>Could you try again with this my patch I developed now applyed ;->? It
>should perfectly avoid the extra syncing. Yowww!

Does somebody other me is using it? I' d like to hear good reports...

It' s working fine here since the last two days (it apply clean also
against 2.1.123 btw).

It improve the test program (and so every threaded program that make use
of shared mmap) drammatically (from 30mbyte of IO every 5 sec forever to
0mbyte of IO all the time!!).

Andrea[s] Arcangeli

PS. I written the word `[patch]' in the subject to attract you, but the
interesting patch really is in the my last email of this thread (I
forget to write it the last time so...).

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