vivek at khera.org
Tue May 31 10:14:30 PDT 2005
On May 31, 2005, at 10:44 AM, Francisco Reyes wrote:
> On Tue, 31 May 2005, Vivek Khera wrote:
>> I'll confirm this with PostgreSQL. I have a 1-year old Dell 2650
>> with a 14-disk RAID array that cannot keep up with replication
>> coming from a dual opteron with a 6 disk RAID array.
> What are you using for replication?
slony-I (see /usr/ports/database/slony1)
> Compared to i386 how much memory is PostgreSQL and other apps using?
> On another thread I asked about memory usage was told that apps in
> AMD64 mode seemed to be taking twice as much memory. I would be
> very interesting in reading about PostgreSQL memory usage in
> FreeBSD AMD64.
About the same. The only thing really bigger in amd64 world is
pointer size, and unless all you're building is a datastructure that
has no data (ie just pointers) you're not gonna double your size...
>> For normal regular server usage, though, I don't see a need for
> I wonder other data intensive apps (ie image/audio editing) how
> they would do in Fbsd-AMD64. Also I wonder if it's an advantage
> only when large amounts of data are moving or lots of data in
> general. For example a busy news server or email server.
I think anything that is slinging lots of bits to a disk will
benefit, or anything that moves a lot of memory. The I/O on these
puppies is just wicked fast.
Vivek Khera, Ph.D.
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