From: Denys Fedorysychenko <nuclearcat@nuclearcat.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: Tom Herbert <therbert@google.com>,
David Miller <davem@davemloft.net>,
shemminger@vyatta.com, netdev@vger.kernel.org, ycheng@google.com
Subject: Re: [PATCH] tcp: Socket option to set congestion window
Date: Wed, 26 May 2010 20:41:01 +0300 [thread overview]
Message-ID: <201005262041.01551.nuclearcat@nuclearcat.com> (raw)
In-Reply-To: <87fx1e1sat.fsf@basil.nowhere.org>
On Wednesday 26 May 2010 20:33:46 Andi Kleen wrote:
> Tom Herbert <therbert@google.com> writes:
> > Thanks to NAT, the concept of a network path or even host specific
> > path is a weakened concept. On the Internet this may be a path
> > characteristic per client, which unfortunately has no visibility in
> > the kernel other than per connection state. When a single IP address
> > may have thousands of hosts behind it, caching TCP parameters for that
> > IP address is implicitly doing a huge aggregation-- probably dicey...
>
> Yes all of Saudi-Arabia used to be (is?) one IP address...
>
> Caching anything per IP is bogus.
>
> -Andi
>
In Lebanon i have around 30k users behind few IP addresses(around 6) (for
web).
Because backbone here $1200/Mbit, and satellites mostly(rtt 400+ ms)... so TCP
accelerators and caching proxy a must. Tproxy doesn't work well yet to use
full set of ip's.
And no local google/youtube servers, so maybe i'm affected by something? :-)
next prev parent reply other threads:[~2010-05-26 17:41 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-26 5:01 [PATCH] tcp: Socket option to set congestion window Tom Herbert
2010-05-26 5:08 ` Stephen Hemminger
2010-05-26 5:52 ` David Miller
2010-05-26 7:06 ` Tom Herbert
2010-05-26 7:33 ` David Miller
2010-05-26 17:33 ` Andi Kleen
2010-05-26 17:41 ` Denys Fedorysychenko [this message]
2010-05-26 21:08 ` David Miller
2010-05-26 21:27 ` Andi Kleen
2010-05-26 22:10 ` David Miller
2010-05-26 22:29 ` Rick Jones
2010-05-27 7:57 ` Andi Kleen
2010-05-26 23:15 ` Hagen Paul Pfeifer
2010-05-27 3:04 ` David Miller
2010-05-27 7:08 ` Hagen Paul Pfeifer
2010-05-27 7:28 ` David Miller
2010-05-27 7:46 ` Hagen Paul Pfeifer
2010-05-27 16:14 ` Tom Herbert
2010-05-27 18:56 ` Andi Kleen
2010-05-27 19:19 ` Hagen Paul Pfeifer
2010-05-27 8:00 ` Andi Kleen
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