Re: Improve compression speeds in pg_lzcompress.c

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От Robert Haas
Тема Re: Improve compression speeds in pg_lzcompress.c
Дата
Msg-id CA+Tgmoaiw4brYWApZekTPNOrXfzhowG+LNKmyS8R2kp7Y8Gb6w@mail.gmail.com
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Ответ на Re: Improve compression speeds in pg_lzcompress.c  (Takeshi Yamamuro <yamamuro.takeshi@lab.ntt.co.jp>)
Ответы Re: Improve compression speeds in pg_lzcompress.c  (Claudio Freire <klaussfreire@gmail.com>)
Список pgsql-hackers
On Tue, Jan 8, 2013 at 4:04 AM, Takeshi Yamamuro
<yamamuro.takeshi@lab.ntt.co.jp> wrote:
> Apart from my patch, what I care is that the current one might
> be much slow against I/O. For example, when compressing
> and writing large values, compressing data (20-40MiB/s) might be
> a dragger against writing data in disks (50-80MiB/s). Moreover,
> IMHO modern (and very fast) I/O subsystems such as SSD make a
> bigger issue in this case.

What about just turning compression off?

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company



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