So I guess that Andrew has indirectly answered your question. AOLserver is
written in C for high performance. Probably use it when you don't want a huge
file cached in memory, but you want to cache a huge file? Maybe someone can
comment on the effect of a large number of smaller mmap'ed files.
It looks like the cache is virtual server wide. Does cache/mmap extend to
other virtual servers?
Tom Jackson
On Friday 10 February 2006 17:45, Cynthia Kiser wrote:
> On Feb 9, 2006, at 3:46 PM, Andrew Piskorski wrote:
> >> When should one use mmap()? and if you don't, what is used?
> >
> > Why does this question arise at all in an AOLserver context?
>
> Because I see it as a true/false option in the annotated
> configuration file.
>
> #
> # Fastpath serves HTML
> #
> ns_section "ns/server/${servername}/fastpath"
> ns_param cache true ;# Enable cache for normal URLs
> ns_param cachemaxentry 8192 ;# Largest file size allowable
> in cache
> ns_param cachemaxsize [expr 5000*1024] ;# Size of fastpath cache
> ns_param mmap false ;# Use mmap() for cache
>
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