Web Servers General Talk - Apache - limited throughput - related to latency ???

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Author Apache - limited throughput - related to latency ???
Tom

2004-01-19, 6:32 am

Hi,

I have a very strange problem:

Apache 1.3 running on Win2K. If I try to serve large file (i.e. 100MB
- I have a web based application for engineering files) I get the
throughput about 50kbytes/s. Same file served using IIS5 gets
throughput around 400kbytes/s (Over DS3 lines). Yet, on local ethernet
same file server by Apache and IIS gets comparable speeds. It looks
like Apache sends one 8k window, waits for ACK and sends the next one.
On LAN (Latency < 10 ms - it's ok, but via DS3 (Latency about 120 ms)
it slows down entire transfer. Is there any way to speed it up?

Originally I was digging in entries for TCPIP in registry, but since
IIS gets OK speed the problem is apache itself. Is there any setting
which could change this behavior, or at least how can I increase the
window size to 64k ???

Thx,

t./

PS: Out of box apache on RedHat 7.2 also as slow over DS3 line, fast
on local net.
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