On Thu, 2015-06-11 at 16:50 -0700, Shaohua Li wrote: > We saw excessive direct memory compaction triggered by skb_page_frag_refill. > This causes performance issues and add latency. Commit 5640f7685831e0 > introduces the order-3 allocation. According to the changelog, the order-3 > allocation isn't a must-have but to improve performance. But direct memory > compaction has high overhead. The benefit of order-3 allocation can't > compensate the overhead of direct memory compaction.
> Cc: Eric Dumazet <eduma...@google.com> > Cc: Chris Mason <c...@fb.com> > Cc: Debabrata Banerjee <dbava...@gmail.com> > Signed-off-by: Shaohua Li <s...@fb.com> > --- Acked-by: Eric Dumazet <eduma...@google.com> Thanks. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
