Subject: Re: UBC performance issues
To: =?iso-8859-1?Q?Jarom=EDr_Dolecek?= <dolecek@ics.muni.cz>
From: Jason R Thorpe <thorpej@zembu.com>
List: tech-kern
Date: 01/26/2001 14:50:47
On Fri, Jan 26, 2001 at 09:32:14PM +0100, Jaromír Dolecek wrote:
> Hi,
> while looking for something else, I also noticed this comment
> in uvm_vnode.c:
>
> /*
> * NOTE: currently we have to use VOP_READ/VOP_WRITE because they go
> * through the buffer cache and allow I/O in any size. These VOPs use
> * synchronous i/o. [vs. VOP_STRATEGY which can be async, but doesn't
> * go through the buffer cache or allow I/O sizes larger than a
> * block]. we will eventually want to change this.
> *
>
> Does it still hold with UBC or the comment should be updated ?
Err, I'm pretty sure that comment is out of date, yes.
--
-- Jason R. Thorpe <thorpej@zembu.com>