Re: Pg+Linux swap use
От | Greg Stark |
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Тема | Re: Pg+Linux swap use |
Дата | |
Msg-id | 87y8uy91ds.fsf@stark.dyndns.tv обсуждение исходный текст |
Ответ на | Re: Pg+Linux swap use (William Yu <wyu@talisys.com>) |
Ответы |
Re: Pg+Linux swap use
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Список | pgsql-performance |
William Yu <wyu@talisys.com> writes: > Rob Sell wrote: > > > Not being one to hijack threads, but I haven't heard of this performance hit > > when using HT, I have what should all rights be a pretty fast server, dual > > 2.4 Xeons with HT 205gb raid 5 array, 1 gig of memory. And it is only 50% as > > fast as my old server which was a dual AMD MP 1400's with a 45gb raid 5 > > array and 1gb of ram. > > Not to get into a big Intel vs AMD argument but 50% sounds about right. Let's > first assume that the QS rating for the MP1400 is relatively accurate and > convert that to a 1.4GHz Xeon. 2.4/1.4 = +71%. Since processor performance > does not increase linearly with clockspeed, 50% is in line with expectations. Hm. You've read "50% as fast" as "50% faster". I wonder which the original poster intended. -- greg
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