Re: Microsoft destroys TPC-C records!

WOW! What passion!

Nuno Souto wrote:

> On 6 Apr 2000 17:38:26 GMT, Norris <jcheong_at_cooper.com.hk> wrote:
>
> >That is the point:
> >
> >With page-, multiple page-, and table-level locking, fewer system resources are used than with row-level locking.
> >
> >SQL Server is designed to AUTOMATICALLY maximize the trade-off between concurrency and performance and system resources, to give the optimal level of lock specificity (row, page, multiple page, or table) for all database operations.
> >
> >Of course, you can MANAULLY speed up the operation.
> >
>
> Norris you don't get it, do you?
>
> With a database where writers block readers, if you have a locking
> mechanism that does what you claim is good, you end up with a table
> that is not readable at all! Got it?
>
> I could go on describing to you all the possible horrible cases. They
> have been verified on real databases that used exactly the same
> approach of lock escalation under control of the "all-knowing-engine".
>
> Got news for you: the engine might know what the app IS doing, but it
> has NO CLUE on what the application mix MIGHT be doing 10 minutes
> from now. So the whole thing will never work.
>
> Been there, been done, been proven that it is a DISASTER in mixed
> high-loads. Ages ago. It's only the MS "geniuses" that still haven't
> clicked into it. Everybody else in the industry has given it up way
> long ago, or fallen by the wayside.
>
> Doesn't it even register with you why these "famous" thousands of tps
> in benchmarks are of ONE single mix per database?
>
> Since when can anybody afford to run a single type of application per
> database node?
>
> You'd have to OFFER the darn thing for FREE for the TCO to come down
> in real life....
>
> As I said: get a copy of ORACLE, and check out how MS's claim that row
> locking slows down large updates is totally FALSE. Don't confuse MS's
> crap implementation of row locking with what can be done. And has
> been done in ORACLE.
>
> Cheers
> Nuno Souto
> nsouto_at_nsw.bigpond.net.au.nospam
> http://www.users.bigpond.net.au/the_Den/index.html
Received on Fri Apr 07 2000 - 00:00:00 CDT