Hi,
> 35 Million keyword searches a day are done at the
> Goolge site.
>
> My calculator tells me this is roughly 405 keyword
> searches per SECOND.
>
> Not even considering any other database queries needed
> to generate targeted ad placement on each page, etc
> one is left with a haunting question:
>
> How is it all done so quickly?
I once read an article in Linux Gazette where Sergey Brin (one of the
founders of Google) mentioned they used over 6,000 Linux servers distributed
across the USA:
http://www.linuxgazette.com/issue59/correa.html
Obviously, not all of these power the Google search engine itself, as they
say they have more than 25,000 third-party sites using their services, but
it indicates they're not short of computing power! They also use their own
custom software. If you want to know more about how Google works, check this
paper out:
http://www7.scu.edu.au/programme/fullpapers/1921/com1921.htm
Anyway, 405 queries per second is not so much if you have monster hardware.
I seem to remember one of the MySQL developers mentioning one time that they
had benchmarked a MySQL server at over 1,000 queries/sec.
Regards,
------------------------------------------------
Basil Hussain ([EMAIL PROTECTED])
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