Re: [lvs-users] [PATCH] IPVS: logging sizeof(struct ip_vs_conn) on startup

[Hannes Eder <heder@xxxxxxxxxx>]

On Mon, Jul 27, 2009 at 11:25, Eric Dumazet<eric.dumazet@xxxxxxxxx> wrote:
> Well, ip_vs_conn_cache uses SLAB_HWCACHE_ALIGN, so this should be rounded up
> to L1 cache size. Or add "at least" like in line 1080
> of net/netfilter/ipvs/ip_vs_conn.c :
>
> IP_VS_DBG(0, "Each connection entry needs %Zd bytes at least\n",
>           sizeof(struct ip_vs_conn));

Good point.  Is there an easy way to figure out how much memory is
wasted for alignment by the slab allocator?  Otherwise I vote for the
"at least" approach.

-Hannes

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