[Pvfs2-users] Re: General questions on pvfs2-cp, tar, read/write

belcampo belcampo at zonnet.nl
Fri Aug 29 07:40:02 EDT 2008


hawaii wrote:
> Hi PVFS2 user,
>  
> Is it true that Pvfs2-cp cannot do more than one file and even a 
> directory with lots of single files at a time? Is it much slower than 
> NFS to read/write a file using Fortran calls? And is it slow to use a 
> Unix tar on the pvfs2 system?
> 
> 
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search the mailing list for my questions on the same subject
My questions were:

Expected/ToExpect vs. real performance - April 2008
I'm in the dark, need someone to shed some light - May 2008

It's all about blocksizes.

Using the 'right' combination of pvfs and nfs according your application 
will/can give you the expected/wanted performance.



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