Manipulating disk cache (buf) settings
vivek at khera.org
Mon May 23 14:17:18 PDT 2005
On May 23, 2005, at 1:44 PM, John-Mark Gurney wrote:
> This is incorrect... FreeBSD merged the vm and buf systems a while
> so all of memory is used as a disk cache.. The buf cache is still
> for filesystem meta data (and for pending writes of files, but
> those buf's
> reference the original page, not local storage)...
Cool... So what would you recommend telling an application like
Postgres what the cache size is? All of RAM? That seems unlikely
given much of the ram is used for other things. Is there no upper
bound in how much RAM will be used for the cache?
Vivek Khera, Ph.D.
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