> -----Original Message-----
> From: Keller, Jacob E
> Sent: Tuesday, November 27, 2012 11:00 AM
> To: Richard Cochran; Andrey Wagin
> Cc: Schmitt, Phillip J; Kirsher, Jeffrey T; e1000-
> de...@lists.sourceforge.net
> Subject: RE: ixgbe: Performance degradation due to v3.5-rc1-478-g1d1a79b
>
>
> Actually the original change that added the BPF incorrectly put a register
> read first which had the same performance impact. There is a fix upstream,
> but it would be nice ot know what kernel this was on, and whether
> that fix was applied or not.
>
> Thanks
>
> - Jake
>
Oops, specifically this commit
commit f42df16756dbcaba7b50cb7bbb0833b65d3ae167
Author: Jiri Benc <jb...@redhat.com>
Commit: Jeff Kirsher <jeffrey.t.kirs...@intel.com>
ixgbe: reduce PTP rx path overhead
Thanks
- Jake
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