lkml.org 
[lkml]   [1999]   [Sep]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Anyone putzing with NBD besides me?
Hi!

> Good morning to everyone on the list.
>
> Is anyone working with the Network Block Device driver (NBD) in
> 2.2.12. If so what type of luck are you having.
>
> I grabbed the tarball of userland stuff from Pavel's site and have it
> up and running between a couple of SMP dual PII-450 systems. I can
> make a filesystem on the device and mount it and read/write files just
> fine.
>
> Problems seem to occur when the device gets subjected to large amounts
> of I/O. In these cases the throughput goes way, way done. The
> slowdown can be pretty easily demonstrated by running Bonnie with a
> scratch filesize of 200-300 megabytes.

Userland client has by-design poor performance. It does not do i/o
request reordering :-(.
Pavel
--
The best software in life is free (not shareware)! Pavel
GCM d? s-: !g p?:+ au- a--@ w+ v- C++@ UL+++ L++ N++ E++ W--- M- Y- R+

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

\
 
 \ /
  Last update: 2005-03-22 13:54    [W:0.035 / U:0.028 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site