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Re: Occupancy of SSL connections?

November 12, 2009 09:15AM
-------------------------------------------------------
> On Mon, Nov 09, 2009 at 05:34:12PM +0000, Edward
> Hibbert wrote:
>
> > For HTTP connections, I can get about 20K
> connections and outstanding requests in 116MB,
> which is pretty respectable.
> >
> > However with HTTPS, what I see is that:
> > - having the connection open takes 261MB for
> about 16K connections
> > - having the connection open with an outstanding
> request takes about 1GB for 10L connections.

Using the OpenSSL 1.0 (thanks for the suggestion, Cliff) there's a significant drop in occupancy.
- 16K open connections now takes ~277MB (noise level difference from previous measurement)
- 16K connections with the outstanding GET request now takes ~1GB (down from estimated 1.6GB previously)

So there's still a massive occupancy cost of having an outstanding GET request in the HTTPS case, which is surprising. Looks like I'd better roll my sleeves up and dig into the code.

Edward.
Subject Author Posted

Occupancy of SSL connections?

Edward Hibbert November 09, 2009 12:36PM

RE: Occupancy of SSL connections?

Edward Hibbert November 09, 2009 12:40PM

Re: Occupancy of SSL connections?

Igor Sysoev November 09, 2009 02:44PM

Re: Occupancy of SSL connections?

edwh2 November 11, 2009 06:03AM

Re: Occupancy of SSL connections?

edwh2 November 12, 2009 09:15AM

Re: Occupancy of SSL connections?

Maxim Dounin November 12, 2009 10:54AM

Re: Occupancy of SSL connections?

edwh2 November 12, 2009 01:11PM

Re: Occupancy of SSL connections?

Maxim Dounin November 12, 2009 07:28PM

Re: Occupancy of SSL connections?

Cliff Wells November 09, 2009 01:10PM

Re: Occupancy of SSL connections?

Cliff Wells November 09, 2009 01:18PM

Re: Occupancy of SSL connections?

edwh2 November 11, 2009 06:18AM



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