diff options
| author | Peter Oskolkov <posk@google.com> | 2018-10-10 12:30:15 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-08 11:25:33 +0100 |
| commit | 2822475e70db5a4b46de88a5b66eb2aceb3734af (patch) | |
| tree | 05137baf25cf268209e00539d98ec989b42b1bb1 /net/ipv6 | |
| parent | 2039bd8669f4ecefca163f0c9d8c5f5f6a4c8610 (diff) | |
ip: process in-order fragments efficiently
commit a4fd284a1f8fd4b6c59aa59db2185b1e17c5c11c upstream.
This patch changes the runtime behavior of IP defrag queue:
incoming in-order fragments are added to the end of the current
list/"run" of in-order fragments at the tail.
On some workloads, UDP stream performance is substantially improved:
RX: ./udp_stream -F 10 -T 2 -l 60
TX: ./udp_stream -c -H <host> -F 10 -T 5 -l 60
with this patchset applied on a 10Gbps receiver:
throughput=9524.18
throughput_units=Mbit/s
upstream (net-next):
throughput=4608.93
throughput_units=Mbit/s
Reported-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Peter Oskolkov <posk@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Mao Wenan <maowenan@huawei.com>
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/ipv6')
0 files changed, 0 insertions, 0 deletions