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| author |   Hyeonggon Yoo <42.hyeyoo@gmail.com> | 2022-01-29 08:53:36 +0000 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2022-01-31 21:36:21 -0800 |
| commit | 7354a426e063e108c0a3590f13abc77573172576 (patch) | |
| tree | 086b24e3ee1767e67b6e070e386dfae8d4ffa243 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | qed: use msleep() in qed_mcp_cmd() and add qed_mcp_cmd_nosleep() for udelay. (diff) | |
| download | linux-dev-7354a426e063e108c0a3590f13abc77573172576.tar.xz linux-dev-7354a426e063e108c0a3590f13abc77573172576.zip | |
net: ena: Do not waste napi skb cache
By profiling, discovered that ena device driver allocates skb by
build_skb() and frees by napi_skb_cache_put(). Because the driver
does not use napi skb cache in allocation path, napi skb cache is
periodically filled and flushed. This is waste of napi skb cache.
As ena_alloc_skb() is called only in napi, Use napi_build_skb()
and napi_alloc_skb() when allocating skb.
This patch was tested on aws a1.metal instance.
[ jwiedmann.dev@gmail.com: Use napi_alloc_skb() instead of
netdev_alloc_skb_ip_align() to keep things consistent. ]
Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Acked-by: Shay Agroskin <shayagr@amazon.com>
Link: https://lore.kernel.org/r/YfUAkA9BhyOJRT4B@ip-172-31-19-208.ap-northeast-1.compute.internal
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions