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From "Jeffrey Janner" <Jeffrey.Jan...@PolyDyne.com>
Subject RE: Compression and SSL
Date Tue, 03 Nov 2009 00:07:51 GMT
Peter -
It's primarily the network bandwidth.
The best-case latency to Asia from the US is about 150ms (assuming
speed-of-light, no hardware delays).
What we see on bi-directional traceroutes is an "across-the-ocean" delay
of 200ms to 300ms on a good day.
That translates to adding roughly 1 second to response time.
Depending on the page, we probably run from 8k to 1-2 Mb of text.  And
that doesn't include uploads/downloads of user's files.
Jeff

-----Original Message-----
From: peter.crowther3@googlemail.com
[mailto:peter.crowther3@googlemail.com] On Behalf Of Peter Crowther
Sent: Monday, November 02, 2009 1:35 PM
To: Tomcat Users List
Subject: Re: Compression and SSL

2009/11/2 George Sexton <georges@mhsoftware.com>

> In general, Compressing HTML can help a great deal for any case
besides a
> local network.
>

... or a CPU-limited server.

To the OP: What's the bottleneck in your environment?  CPU?  Disk I/O?
Network bandwidth?  Measure the problem, *then* look for solutions to
the
problem that actually exists.  If you've measured and you have CPU to
spare
but are bandwidth-limited, then compression will help a great deal!

- Peter

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