From: Jason Xing <kerneljasonxing@xxxxxxxxx>
Date: Mon, 25 Aug 2025 21:53:38 +0800
> From: Jason Xing <kernelxing@xxxxxxxxxxx>
>
> Support allocating and building skbs in batch.
[...]
> + base_len = max(NET_SKB_PAD, L1_CACHE_ALIGN(dev->needed_headroom));
> + if (!(dev->priv_flags & IFF_TX_SKB_NO_LINEAR))
> + base_len += dev->needed_tailroom;
> +
> + if (xs->skb_count >= nb_pkts)
> + goto build;
> +
> + if (xs->skb) {
> + i = 1;
> + xs->skb_count++;
> + }
> +
> + xs->skb_count += kmem_cache_alloc_bulk(net_hotdata.skbuff_cache,
> + gfp_mask, nb_pkts - xs->skb_count,
> + (void **)&skbs[xs->skb_count]);
Have you tried napi_skb_cache_get_bulk()? Depending on the workload, it
may give better perf numbers.
> + if (xs->skb_count < nb_pkts)
> + nb_pkts = xs->skb_count;
Thanks,
Olek
