Application Development Software

Hello,

I have a problem with slow file downloads in our Oracle UCM 11g Content Server. I have done a ton a expirimenting and here's what I've found:

-- When fetching a big file (25MB .PDF for example) the transfer speed is roughly 1/4 what it should be --

For example,

If I download that file through FTP, I get a transfer speed of 1000KB/s

If I download that file from another web server (Win2K3, IIS6), I get a transfer speed of 1000KB/s

If I download that file through http from UCM, I get a transfer speed of about 250KB/s (or less).

We have OHS + WEBLOGIC + UCM on this server and I think one of those three components is serving the content at about 1/4 throughput. I know - this is very unusual, but it's true. I have run all sorts of test and it is absolutely repeatable.

I have talked to the network guys and our systems guys and there is nothing weird or unusual about this host - it's just a web server in our DMZ. The only thing that makes it different than any other is OHS + WEBLOGIC + UCM. HTTPS is turned on for the site. I know there is a bit of overhead associated with the SSL handshaking, but it shouldn't cause bulk transfer speeds to be 1/4 what they should.

Someone suggested perhaps the disk is slow but it would have to be ridiculously slow to be the bottleneck at these internet speeds, right?

Is there some sort of configuration or tuning that could cause this?

Thanks in advance!

JDM