Re: Benchmarking a large server - Mailing list pgsql-performance

From David Boreham
Subject Re: Benchmarking a large server
Date
Msg-id 4DC85595.5070909@boreham.org
Whole thread Raw
In response to Re: Benchmarking a large server  (Merlin Moncure <mmoncure@gmail.com>)
Responses Re: Benchmarking a large server
List pgsql-performance
> hm, if it was me, I'd write a small C program that just jumped
> directly on the device around and did random writes assuming it wasn't
> formatted.  For sequential read, just flush caches and dd the device
> to /dev/null.  Probably someone will suggest better tools though.
I have a program I wrote years ago for a purpose like this. One of the
things it can
do is write to the filesystem at the same time as dirtying pages in a
large shared
or non-shared memory region. The idea was to emulate the behavior of a
database
reasonably accurately. Something like bonnie++ would probably be a good
starting
point these days though.



pgsql-performance by date:

Previous
From: Merlin Moncure
Date:
Subject: Re: Benchmarking a large server
Next
From: Ben Chobot
Date:
Subject: Re: Benchmarking a large server