RE: How does ebay do it?

["Nathan M. Andelin" <nathanma@xxxxxxxxx>]

>>Remember, with online stores, response time for 1or
>>two or 10 users is not good enough. You have to be
>>able to handle 10,000 or more simultaneous users.

Just playing with a few numbers here.  If 10,000 simultaneous users submited
a new request at 5 second intervals, that's 2000 new requests per second.
If the average response is 7,000 bytes, that's a demand of 14,000,000 bytes
per second.  A T1 supports about 187,500 bytes per second.  So this site
would require the equivalent of 75 T1 lines.  In Utah, I think that would
cost about $90,000 per month.

I wonder what sort of an AS/400 it would take to handle that kind of volume?
Anybody done any stress testing with one of the multi-threaded tools that
run under Windows NT?

Thanks,

Nathan.


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