A minute ago I said:
AFAIK Opensolaris doesn't implement posix_fadvise() so there's no benefit. It
would be great to hear if you could catch the ear of the right people to get
an implementation committed. Depending on how the i/o scheduler system is
written it might not even be hard -- the Linux implementation of WILLNEED is
all of 20 lines.
I noticed after sending it that that's slightly unfair. The 20-line function
calls another function (which calls another function) to do the real readahead
work. That function (mm/readahead.c:__do_page_cache_readahead()) is 48 lines.
--
Gregory Stark
EnterpriseDB http://www.enterprisedb.com
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