[Lustre-discuss] Single file write performance tuning

[Jeremy Filizetti]

If your need is just 1300-1500 MB/s you might want to use Lustre 1.8.9.
Your 840 MB/s seems consistent with the numbers I've seen for 2.3.61 but my
1.8.9 clients could do around 1.1-1.4 GB/s for the same dd.  You'll need
checksums turned off on the 1.8 client.  Single threaded IO is being
tracked at:

https://jira.hpdd.intel.com/browse/LU-1056

Jeremy


On Mon, May 6, 2013 at 2:27 PM, Mike Ware <charnobyl3000 at gmail.com> wrote:

> Hi All,
> I am currently working on a 3 node oss cluster on centos 6.3 with lustre
> 2.3 with 12 osts on qdr infiniband.  This is just a test bed cluster at
> this point and will be further scaled out.  Currently my single file,
> single client write speed is about 840MB/s (tested with dd). I'm looking to
> get this up to 1300-1500MB/s with a multithreaded app to a single file from
> a single client. The file is currently striped across all osts. Does anyone
> have any tuning pointers to achieve this kind of performance for this setup?
>
> Thanks
> Mike
>
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