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RE: who's got the biggest and the fastest?

From: MacGregor, Ian A. <>
Date: Tue, 6 Nov 2007 12:14:08 -0800
Message-ID: <>

Yes cellular providers need database that track every call including the ones which don't go through. Internet providers need do do the same.

Event data from physics experiments is stored in file systems developed at various high-energy physics sites.

-----Original Message-----
From: [] On Behalf Of

Sent: Tuesday, November 06, 2007 7:17 AM
To: MacGregor, Ian A.;; Greg Rahn
Cc: MacGregor, Ian A.; oracle-l

Subject: Re: who's got the biggest and the fastest?

we are creating a system to load 5 billion rows/day that is expected to be fully deployed 3rd quarter 2008. this is on oracle

Verisign has a custom built database that as of february/march 2007 did 36 billion executions/day. Its the backend DNS server for the internet. if you go or whatever and its not cached you hit this database. They expect it to increase its volume by 20%/year for the indefinite future. it is written in C and all data is completely in memory.

I heard that Google has over 1 petabyte of memory for its search engine.

There is an particle accelerator being built at CERN in Europe. they are going to do an experiment sometime next year that will add 1 GB data/minute or a second or something like that. Its a custom made system. The only way I can think to do it is with straight serial writes and accept some data loss. Does anyone know more about this?

The absolute highest end systems push the edge of the technology available and will always need to be custom built specifically for their task.

Received on Tue Nov 06 2007 - 14:14:08 CST

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