FMS3 file read behavior

Hi,

We are testing FMS3 using our own custom filesystem, and it seems that FMS behaves in a very inefficient way when it comes to reading data from the underlying FS.

Whenever I stream a file to a VOD client, I see the following behavior:
1. stat the file
2. open
3. read
4. close

This cycle repeats for every single read, which is done for every single client. Taking into account that the average FMS read size is about 256k, this is extremely inefficient and resource consuming.
Can anyone please explain this behavior, or how I might change it?

Thanks,

Gilad