Re: Load Distributed Checkpoints test results - Mailing list pgsql-hackers

From ITAGAKI Takahiro
Subject Re: Load Distributed Checkpoints test results
Date
Msg-id 20070614142205.6A5F.ITAGAKI.TAKAHIRO@oss.ntt.co.jp
Whole thread Raw
In response to Load Distributed Checkpoints test results  (Heikki Linnakangas <heikki@enterprisedb.com>)
List pgsql-hackers
Heikki Linnakangas <heikki@enterprisedb.com> wrote:

> Here's results from a batch of test runs with LDC. This patch only 
> spreads out the writes, fsyncs work as before.

I saw similar results in my tests. Spreading only writes are enough
for OLTP at least on Linux with middle-or-high-grade storage system.
It also works well on desktop-grade Widnows machine.

However, I don't know how it works on other OSes, including Solaris
and FreeBSD, that have different I/O policies. Would anyone test it
in those environment?

Regards,
---
ITAGAKI Takahiro
NTT Open Source Software Center




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