From: Eric Dumazet <eric.dumazet@gmail.com>
To: David Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH 03/16] tcp: Maintain dynamic metrics in local cache.
Date: Tue, 10 Jul 2012 17:31:38 +0200 [thread overview]
Message-ID: <1341934298.3265.5514.camel@edumazet-glaptop> (raw)
In-Reply-To: <20120710.080714.2272376193166978850.davem@davemloft.net>
On Tue, 2012-07-10 at 08:07 -0700, David Miller wrote:
> Maintain a local hash table of TCP dynamic metrics blobs.
>
> Computed TCP metrics are no longer maintained in the route metrics.
>
> The table uses RCU and an extremely simple hash so that it has low
> latency and low overhead. A simple hash is legitimate because we only
> make metrics blobs for fully established connections.
>
> Some tweaking of the default hash table sizes, metric timeouts, and
> the hash chain length limit certainly could use some tweaking. But
> the basic design seems sound.
>
> Signed-off-by: David S. Miller <davem@davemloft.net>
> ---
Seems to lack namespace support, or maybe I missed something ?
next prev parent reply other threads:[~2012-07-10 15:31 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-10 15:07 [PATCH 03/16] tcp: Maintain dynamic metrics in local cache David Miller
2012-07-10 15:31 ` Eric Dumazet [this message]
2012-07-10 15:33 ` David Miller
2012-07-10 17:02 ` Joe Perches
2012-07-11 0:29 ` David Miller
2012-07-11 0:44 ` Joe Perches
2012-07-11 1:01 ` David Miller
2012-07-11 1:22 ` Joe Perches
2012-07-11 3:56 ` David Miller
2012-07-11 3:59 ` David Miller
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