[lustre-discuss] Performance over 100G ethernet

Colin Faber cfaber at gmail.com
Mon Mar 8 19:26:11 PST 2021

Hi Sid,

Start here https://wiki.lustre.org/LNET_Selftest

That should get you near wire speed numbers and you can use it to play
around with your network tunables.

After that, obdfilter-survey, mdtest, IOR and fio amongst others will help
you determine hero and average numbers for your whole I/O path.



On Mon, Mar 8, 2021, 4:17 PM Sid Young via lustre-discuss <
lustre-discuss at lists.lustre.org> wrote:

> G'Day all,
> What sort of transfer speeds should I expect to see from  a client writing
> a 1G file into the Lustre storage via RoCE on a 100G ConnectX5 (write block
> size is 1M)?
> I have done virtually no tuning yet and the MTU is showing as "active
> 1024".
> If you have any links to share with some performance benchmarks and config
> examples that would be much appreciated.
> Thanks
> Sid Young
> _______________________________________________
> lustre-discuss mailing list
> lustre-discuss at lists.lustre.org
> http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
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