Re: Multibyte or not?

hello Dave, hello all,

I digged through psql-admin and found a link to the article by Bruce Momjian:
"PostgreSQL Hardware Performance Tuning". There is some valuable information
for me there. I will experiment for myself a bit before I bother some more
people with my problem. If I get astonishing results I'll let you know... ;=)

cheers
Chantal

> Chantal,
>
> You probably should post this on the general list or the hackers list.
> Yes it will be faster with multibyte disabled since you will use have
> the number of bytes. However I don't think that you are going to get a
> really big bang for your buck there.
>
> AFAIK the biggest will be ram size or cache size, and disk speed.
>
> Dave
>
> -----Original Message-----
> Hello all,
>
> at the mysql-admin list I found a posting that says a non-multibyte
> built of
> the database would be faster than a multibyte one. My question is - do I
>
> always need a multibyte built if I plan to access the db with jdbc or do
> i
> only need it if the data is non-ascii? i know that java uses unicode but
> does
> that really matter unless I want to enter non-ascii letters?
>
> actually this came to my mind when I was in search for some tuning
> hints. I
> don't think this is the right place to ask this (would 'psql-admin' be
> that?)
> - but maybe one of you had similar problems?
> I am doing a lot of checking and inserting at runtime. while the java
> thread
> holds ~38Mb (~500Mb) it uses only 1.7% CPU (~900Hz). postgresql uses
> less
> than 4Mb at more than 90% CPU. I already doubled the effective cache
> size to
> be '2000' but that did not change anything.
>
> I wonder if the postgres would be faster if it would use more RAM. or is
> this
> the bottle neck's end (unless I get a better CPU)?
>
> thank you
> Chantal
>
> ---------------------------(end of broadcast)---------------------------
> TIP 1: subscribe and unsubscribe commands go to majordomo(at)postgresql(dot)org