lkml.org 
[lkml]   [2001]   [May]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectO_DIRECT support important for high data volume applications
From
Date
When will we see O_DIRECT support included in
the Linux kernel?

We have now tested 2.4.4 with the o_direct-5 patch,
and it still works perfectly.

I sent an email about two weeks ago asking if the O_DIRECT
patch by Andrea Archangeli would be included in 2.4.4.
2.4.4 has since been released, but only with the rawio
patch, which Andrea considered as a bugfix patch.

The O_DIRECT patch is in my view really important
for high data volume applications that do
caching internally. The performance graph
I posted earlier should be enough evidence.

If I remember correctly, Stephen Tweedie implemented
O_DIRECT support already back in 1999. Why this
implementation was not included, I do not know.

Linux would be lacking behind other OSs if not
O_DIRECT support is added. All major commercial
OSs have this capability.


--
Michael Susæg, M.Eng. Mail: Michael.Susag@fast.no
Software Engineer Web: http://www.fast.no/
Fast Search & Transfer ASA Phone: +47 21 60 12 27
P.O. Box 1677 Vika Fax: +47 21 60 12 01
NO-0120 Oslo, NORWAY Mob: +47 90 06 38 70

Try FAST Search: http://www.alltheweb.com/


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 12:52    [W:0.055 / U:1.528 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site