Re: Possible performance problem introduced between kernel 2.6.15 and 2.6.17 on xfs code

[Eric Sandeen <sandeen@xxxxxxxxxxx>]

fdegrassi wrote:
> Hi all,
> i noticed that changing from kernel 2.6.15 to 2.6.17, gnomevfs-copy 
> operations suffered an heavy performance hit (20 times slower).
> I checked quickly (i am not a kernel hacker) and i think it could be 
> related to libgnomevfs calling fadvice POSIX_FADV_DONTNEED  (in 
> gnome_vfs_forget_cache, disabling this behaviour gets back normal 
> performance).
> I am not able to dig deeper than this, anyway it could be a starting point.
> The relevant gnome bugzilla reference is the following: 
> http://bugzilla.gnome.org/show_bug.cgi?id=363400
> Francesco Degrassi
Is a copy command from the shell affected, or just gnome point-n-click?

-Eric