Re: Hardware recommendations to scale to silly load
От | Ron Johnson |
---|---|
Тема | Re: Hardware recommendations to scale to silly load |
Дата | |
Msg-id | 1062158736.669.5.camel@haggis обсуждение исходный текст |
Ответ на | Re: Hardware recommendations to scale to silly load ("Shridhar Daithankar" <shridhar_daithankar@persistent.co.in>) |
Список | pgsql-performance |
On Fri, 2003-08-29 at 03:18, Shridhar Daithankar wrote: > On 29 Aug 2003 at 0:05, William Yu wrote: > > > Shridhar Daithankar wrote: [snip] > > As for performance, the scaling is magnificient -- even when just using > > PAE instead of 64-bit addressing. At low transaction counts, it's only > > ~75% faster than the 2x Athlon 1800+ MP it replaced. But once the > > transactions start coming in, the gap is as high as 5x. My w-a-g: since > > each CPU has an integrated memory controller, you avoid memory bus > > contention which is probably the major bottleneck as transaction load > > increases. (I've seen Opteron several vs Xeon comparisons where > > single-connection tests are par for both CPUs but heavy-load tests favor > > the Opteron by a wide margin.) I suspect the 4X comparisons would tilt > > even more towards AMD's favor. > > I am sure. But is 64 bit environment, Xeon is not the compitition. It's PA-RSC- > 8700, ultraSparcs, Power series and if possible itanium. IMO, Opti will compete in *both* markets. -- ----------------------------------------------------------------- Ron Johnson, Jr. ron.l.johnson@cox.net Jefferson, LA USA "Adventure is a sign of incompetence" Stephanson, great polar explorer
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