[PVFS2-users] slow compiles with PVFS2 file system

[Bruce Schwartz]

I was using that option originally but there is a bug in the readahead
code such that you can't even compile most of the .c files.  I brought
up the bug on an earlier thread back on Oct 11 (on the
pvfs2-developers list) which I think is why that configuration option
is now disabled by default.  I haven't tried the option with 1.0.1 but
I haven't seen anything in the release notes that would indicate that
the bug was fixed.

-Bruce


On Thu, 9 Dec 2004 15:41:12 -0600, Nathan Poznick
<poznick at conwaycorp.net> wrote:
> Thus spake Bruce Schwartz:
> 
> 
> > In working with PVFS2 I've tried building PVFS2 in a PVFS2 file
> > system.  I've notices that the LD steps are much much slower than the
> > other steps.  They are running at least 50 times slower than on a
> > local disk
> 
> I'm not sure what ld is doing under the covers, but it's most likely a
> whole lot of very small reads/writes.  You may try configuring with
>  --enable-mmap-racache to see if that helps (if ld is doing mmaps on the
> files).
> 
> --
> Nathan Poznick <poznick at conwaycorp.net>
> 
> The rotten apple spoils his companion. - Benjamin Franklin
> 
> 
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