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B on Compress Images before compress C after compress
09-17-2011, 12:54 AM
Post: #11
RE: B on Compress Images before compress C after compress
Either one could cause the first byte time to be longer but not as a function of the optimization itself, it's a symptom that is showing other issues.

The keep-alives (even at 2 seconds) could easily cause the first byte time to extend if your apache server is maxing out on the number of clients it can run. New requests would wait for a client to free up (and it would only free up after the 2 seconds of keep-alive). This is the main reason I recommend using a reverse proxy in front of apache - the apache clients will only be tied up when they are actually executing code. To get visibility into this you'd need to look at the apache status (if you have mod_status enabled). You can buy some time by increasing the number of clients but only if the server has the cpu and ram to support it.

Gzip could cause the times to be longer if your server is running hot on CPU or if the data is sent in bursts (with the first chunk being to small for the compressor to process).

My bet is on the keep-alives and your apache clients.
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10-11-2011, 03:56 AM
Post: #12
RE: B on Compress Images before compress C after compress
Hi Pat,

Where can one learn how to install/use the Apache traffic server, the pros and cons of using it (besides here in the forum..) ?

ThanksSmile
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10-11-2011, 06:06 AM
Post: #13
RE: B on Compress Images before compress C after compress
Here is it's official home: http://trafficserver.apache.org/

There are also several mailing lists listed on the page.
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02-21-2012, 09:13 AM
Post: #14
RE: B on Compress Images before compress C after compress
can apache trafficserver be installed only on a dedicated server?

Thanks
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02-21-2012, 11:16 PM
Post: #15
RE: B on Compress Images before compress C after compress
No, but it depends on what you are talking about. It can be installed on the same server as a website (though the website would have to be configured to listen on a different port). As long as you have rights to install software you can do it (VPS or dedicated server). You wouldn't be able to install it on a Shared server though.
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