From: Eric Wong <normalperson@...>
Date: 2010-07-22T10:26:41+09:00
Subject: Re: Writing to file delay

Matt Triviski <matt.triviski@gmail.com> wrote:
> I am writing to NFS, so I am thinking that this may be the issue.  I'm 
> starting to think that there is no way for me to get what I want, except 
> to rewrite this in C or Assembly :(

NFS is your problem, not Ruby.  See the nfs(5) manpage and see if you
(or your friendly systems administrator) can tune the NFS mount
options to invalidate the cache more frequently.

Ruby IO methods are already thin wrappers around corresponding C
functions (and thinner if you use the sys{write,read,...} variants).
You normally don't need to go lower-level than that.  Heck, with enough
time and effort, you even could write your own NFS client implementation
in Ruby (not a serious suggestion :)

-- 
Eric Wong