From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
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To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Charles Hornberger <charlie(at)hss(dot)caltech(dot)edu>, pgsql-admin(at)postgresql(dot)org |
Subject: | Re: using ssl some of the time |
Date: | 2003-07-24 21:53:04 |
Message-ID: | 200307242153.h6OLr4f03872@candle.pha.pa.us |
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Lists: | pgsql-admin |
Tom Lane wrote:
> > Charles Hornberger wrote:
> >> Just a quick follow-up to share one (!) data point, which looks to me
> >> like it indicates that SSL encryption/decryption is pretty expensive on
> >> one of our Sun Ultra 5 boxes. The following query ("select * from wp")
> >> generates ~270K of output. When executed via a psql client that's
> >> connected over a non-encrypted link, it takes 0.7 seconds; over an
> >> encrypted link, it takes more than 10 times that long.
>
> I suspect most of this is from the ridiculously small renegotiation
> interval we put into 7.3. Try increasing RENEGOTIATION_LIMIT in
> src/backend/libpq/be-secure.c (we've bumped it to 512 meg for 7.4).
Yes, good point! Would you try 7.4 or that change and let us know the
results?
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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