does varnish write objects to disk?

Flemming Frandsen ff at
Mon Jan 15 19:30:29 CET 2007

Poul-Henning Kamp wrote:
>>Varnish caches objects into *memory* and not disk right?
> No, varnish caches objects into "virtual memory" which means that
> RAM acts as a cache for the disk.

I guess the interesting detail is how eager the kernel is to write the 
mapped memory to disk.

It would be a shame to spend time and IO bandwidth to write a 1G cache 
out to disk if the box has 4G of RAM and would never need the RAM for 
anything other than the cache, woudn't it?

  Regards Flemming Frandsen - - YAPH

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