On 11/7/18 9:44 PM, Riccardo Veraldi wrote: > Anyway I Was wondering if something different is needed for mlx5 and > what are the suggested values in that case ? > > Anyone has experience with mlx5 LNET performance tunings ?
Hi Riccardo, We have recently integrated mlx5 nodes into our fabric, and we had to reduce the values to peer_credits = 16 concurrent_sends = 16 because mlx5 doesn't support larger values for some reason. The peer_credits must have the same value in all connected lnets, even across routers (at least it used to be like this. I believe we are currently running some Lustre 2.5.x derivates on the server side, and newer versions on the various clients). kind regards, Martin _______________________________________________ lustre-discuss mailing list [email protected] http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
