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| author | Jason Xing <kernelxing@tencent.com> | 2025-11-18 15:06:45 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-11-19 20:29:24 -0800 |
| commit | 2d67b5c5c67f934c54a55e00ee291a8587c5b4fe (patch) | |
| tree | 8afb369c0d379acde657f06112a39d3450f3c9e7 /net/unix/af_unix.c | |
| parent | 01d7385618992a9017198534870aec62f54f963a (diff) | |
net: use NAPI_SKB_CACHE_FREE to keep 32 as default to do bulk free
- Replace NAPI_SKB_CACHE_HALF with NAPI_SKB_CACHE_FREE
- Only free 32 skbs in napi_skb_cache_put()
Since the first patch adjusting NAPI_SKB_CACHE_SIZE to 128, the number
of packets to be freed in the softirq was increased from 32 to 64.
Considering a subsequent net_rx_action() calling napi_poll() a few
times can easily consume the 64 available slots and we can afford
keeping a higher value of sk_buffs in per-cpu storage, decrease
NAPI_SKB_CACHE_FREE to 32 like before. So now the logic is 1) keeping
96 skbs, 2) freeing 32 skbs at one time.
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Link: https://patch.msgid.link/20251118070646.61344-4-kerneljasonxing@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions