lkml.org 
[lkml]   [2011]   [Aug]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC PATCH]vhost-blk: In-kernel accelerator for virtio block device
On 08/01/2011 12:18 PM, Liu Yuan wrote:
>> Agree. vhost-net works around the lack of async zero copy networking
>> interface. Block I/O on the other hand does have such an interface,
>> and in addition transaction rates are usually lower. All we're
>> saving is the syscall overhead.
>>
>
> Personally I too agree with Sasha Levin. But vhost-blk is the first
> fast prototype that is supposed to act as a code base to do further
> optimisation, which I plan to utilize kernel's internal stuff like
> BIO layer, that can not be accessed from user space, to maximize the
> performance for raw disk based block IO.

Is there anything in the bio layer which is not exposed by linux-aio?
Or is linux-aio slow in translating from vfs ops to bio ops?

--
error compiling committee.c: too many arguments to function



\
 
 \ /
  Last update: 2011-08-01 11:41    [W:0.054 / U:0.904 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site