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Re: scaling up postgres
- From: Sven Geisler <sgeisler(at)aeccom(dot)com>
- To: "Joshua D. Drake" <jd(at)commandprompt(dot)com>
- Cc: mario(dot)splivalo(at)mobart(dot)hr, "Steinar H. Gunderson" <sgunderson(at)bigfoot(dot)com>, pgsql-performance(at)postgresql(dot)org
- Subject: Re: scaling up postgres
- Date: Mon, 12 Jun 2006 13:21:05 +0200
Hi all, Joshua D. Drake schrieb:
Mario Splivalo wrote:Could you point out to some more detailed reading on why Xeons are poorer choice than Opterons when used with PostgreSQL?It isn't just PostgreSQL. It is any database. Opterons can move memory and whole lot faster then Xeons.
Yes. You can run good old memtest86 and you see the difference. Here my numbers with memtest86 (blocksize 128 MB). HP DL580 G3 (4-way XEON MP - DDR RAM) => 670 MByte/sec FSC RX600 S2 (4-way XEOM MP DC - DDR2-400 PC2-3200) => 1300 MByte/sec HP DL585 (4-way Opteron DDR2-400 PC2-3200) => 1500 MByte/sec I used memxfer5b.cpp. Cheers Sven.
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- Re: scaling up postgres
- From: Steinar H. Gunderson
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