Re: Got iperf regression while intel_iommu is on, how to cut the costof cache flushing

[Ethan Zhao]

Eric,
   Thanks, hope it could kill the most pain of the regression.  I will
try them and report the result.

Ethan

> You might hit a known problem for some 10Gb links.
>
> 3.12-rc6 has the fixes already, and stable has some pending backports :
>
> commit 95bd09eb27507691520d39ee1044d6ad831c1168
> tcp: TSO packets automatic sizing
>
> commit c9eeec26e32e087359160406f96e0949b3cc6f10
> tcp: TSQ can use a dynamic limit
>
> Please check that current 3.12-rc6 is OK ?
>
>
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/