Re: Concurrency in an RDB
From: paul c <toledobythesea_at_oohay.ac>
Date: Mon, 25 Dec 2006 03:03:51 GMT
Message-ID: <rcHjh.520318$5R2.377146_at_pd7urf3no>
Date: Mon, 25 Dec 2006 03:03:51 GMT
Message-ID: <rcHjh.520318$5R2.377146_at_pd7urf3no>
David wrote:
...
> Despite the logical purity there are disadvantages to be considered.
> Modern CPUs are quite adept at manipulating strings in the normal
> representation. The space and time overheads of your suggestion are
> significant.
> ...
Actually relatively less adept than they used to be, ie., the instruction sets have stagnated for decades and when applied to a sequential string incur all kinds of cache misses on the latest cpu's which are so much faster than the memory they use, ie., they don't come close to the advertised cpu speed.
p Received on Mon Dec 25 2006 - 04:03:51 CET