From mboxrd@z Thu Jan  1 00:00:00 1970
From: Florian Westphal <fw@strlen.de>
Subject: [PATCH net-next 0/2] tcp: re-add header prediction
Date: Wed, 30 Aug 2017 19:24:56 +0200
Message-ID: <20170830172458.18544-1-fw@strlen.de>
Cc: edumazet@google.com
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Eric reported a performance regression caused by header prediction
removal.

We now call tcp_ack() much more frequently, for some workloads
this brings in enough cache line misses to become noticeable.

We could possibly still kill HP provided we find a different
way to suppress unneeded tcp_ack, but given we're late in
the cycle it seems preferable to revert.