Re: SCO: "thread creation is about a thousand times faster than on

From: Pavel Machek (pavel@suse.cz)
Date: Fri Sep 01 2000 - 12:24:02 EDT

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    Hi!

    > > CODA's local caching is pretty much neccessity: you can't have
    > > read/write server in userland on localhost at smaller granularity due
    > > to deadlock issues.
    >
    > For distributed filesystem - yes (but not necessary). For other kinds of
    > stuff - provably not true.

    Okay, how do you implement it?

    There's memory pressure, kernel needs ram. So it decides to write some
    old data to disk. Data go to userland process on same machine; but we
    already know we are short of memory. Userland process is likely to get
    stopped due to low memory and you are deadlocked.

    You could pagelock userland server to solve this.
                                                                    Pavel 

    -- 
The best software in life is free (not shareware)!		Pavel
GCM d? s-: !g p?:+ au- a--@ w+ v- C++@ UL+++ L++ N++ E++ W--- M- Y- R+
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