Hi Patrick - I'm sure you'll be able to get 500MB/s if you have the hardware for it, there will likely be a fair amount of tweaking/optimizations required for the TCP/IP network interface to work well in single-client operations on 10GE, though I'm sure someone has experimented with it and could provide help once it gets there.
Kyle Schochenmaier On Tue, Mar 8, 2011 at 10:22 AM, Kevin Harms <[email protected]> wrote: > > I had a setup where I could get 500MB/s using pvfs2-cp with Myri10G which > took some effort. > > kevin harms > > On Mar 7, 2011, at 3:51 PM, Patrick J. LoPresti wrote: > > > Hello. I have a fairly simple question. > > > > What is the fastest single-client, single-thread, single-file read > > performance anyone has ever observed using PVFS2, and what hardware > > did it use? > > > > I need to be able to read 500 megabytes/second, sustained, from a > > single file using a single thread. I have achieved such speeds and > > higher, reading 200+ gigabytes sequentially, using a fast RAID and XFS > > (i.e., local storage). I would like to replace that design with > > something more networked and scalable. But my individual clients > > still require 500+ megabyte/second reads. > > > > If I tie together a half dozen fast OrangeFS servers with 10GigE, will > > I be able to serve another half dozen 10GigE clients at 500MB/sec > > each? (Again, assuming single-file, single-thread on each client. > > Also assume each server can read/write its local store at ~1000 MB/sec > > sustained.) > > > > Finally, and perhaps off-topic for this list... If OrangeFS cannot do > > this sort of thing, are there any distributed Linux file systems that > > can? > > > > Thanks. > > > > - Pat > > _______________________________________________ > > Pvfs2-users mailing list > > [email protected] > > http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users > > > _______________________________________________ > Pvfs2-users mailing list > [email protected] > http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users > >
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