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| author |   Martin KaFai Lau <kafai@fb.com> | 2015-01-16 10:11:00 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-01-18 01:56:32 -0500 |
| commit | 88340160f3ad22401b00f4efcee44f7ec4769b19 (patch) | |
| tree | debe361cc6501cc3584f70015e648b7d51cc2456 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | net: rocker: Add basic netdev counters - v2 (diff) | |
| download | linux-dev-88340160f3ad22401b00f4efcee44f7ec4769b19.tar.xz linux-dev-88340160f3ad22401b00f4efcee44f7ec4769b19.zip | |
ip_tunnel: Create percpu gro_cell
In the ipip tunnel, the skb->queue_mapping is lost in ipip_rcv().
All skb will be queued to the same cell->napi_skbs. The
gro_cell_poll is pinned to one core under load. In production traffic,
we also see severe rx_dropped in the tunl iface and it is probably due to
this limit: skb_queue_len(&cell->napi_skbs) > netdev_max_backlog.
This patch is trying to alloc_percpu(struct gro_cell) and schedule
gro_cell_poll to process the skb in the same core.
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions