Thanks John. I looked into this patch but it doesn't resolve my problem, and we have have posix FADV.
I found a simple solution. Just open the file on receiver to be write direct to disk avoid file buffer/cache. Of course the performance sucks but it's what I need. The output block rate cannot be reduced by 2/3 based on my besting on linux 2.6.22. I can post the diff if anybody wants. - Reeve On Sun, Mar 30, 2008 at 10:23 PM, John Van Essen <[EMAIL PROTECTED]> wrote: > On Fri, 28 Mar 2008, Reeve Yang <[EMAIL PROTECTED]> wrote: > > Is there anyway to make rsync use direct I/O bypassing FS buffer? > > I'm not an expert on that by any means, but AFAIK, rsync supports that > only via this patch: > > http://rsync.samba.org/ftp/rsync/patches/drop-cache.diff > > (You'll have to compile your own version of rsync.) > > > > John > > -- > To unsubscribe or change options: > https://lists.samba.org/mailman/listinfo/rsync > Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html > -- To unsubscribe or change options: https://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
