[ofa-general] [PATCH] IB/mlx4: Use pgprot_writecombine() for BlueFlame pages

Or Gerlitz ogerlitz at Voltaire.com
Tue Mar 31 04:24:36 PDT 2009


Jack Morgenstein wrote:
> You can see the write combining driver code in file:
>   kernel_patches/fixes/mlx4_0010_add_wc.patch

Yes, with this patch, ib_rdma_lat goes down to about 1.2us where without any patch or with Roland's patch it gives about 3.5us 

Or.



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