Maybe OT, not sure Re: [PERFORM] Best suiting OS

2009-10-04 Thread Mark Mielke
This is kind of OT, unless somebody really is concerned with understanding the + and - of distributions, and is willing to believe the content of this thread as being accurate and objective... :-) On 10/04/2009 08:42 PM, Scott Marlowe wrote: On Sun, Oct 4, 2009 at 8:05 AM, Mark Mielke wrote:

Re: [PERFORM] Bad performance of SELECT ... where id IN (...)

2009-10-04 Thread Omar Kilani
Hi Xia, Try this patch: http://treehou.se/~omar/postgresql-8.4.1-array_sel_hack.patch It's a hack, but it works for us. I think you're probably spending most of your query time planning, and this patch helps speed things up 10x over here. Regards, Omar On Sun, Sep 27, 2009 at 5:13 PM, Xia Qing

Re: [PERFORM] Best suiting OS

2009-10-04 Thread Scott Marlowe
On Sun, Oct 4, 2009 at 8:05 AM, Mark Mielke wrote: > On 10/01/2009 03:44 PM, Denis Lussier wrote: >> >> I'm a BSD license fan, but, I don't know much about *BSD otherwise (except >> that many advocates say it runs PG very nicely). >> >> On the Linux side, unless your a dweeb, go with a newer, popu

Re: [PERFORM] Speed / Server

2009-10-04 Thread Scott Marlowe
On Sun, Oct 4, 2009 at 4:45 PM, wrote: > All: > > We have a web-application which is growing ... fast.  We're currently > running on (1) quad-core Xeon 2.0Ghz with a RAID-1 setup, and 8GB of RAM. > > Our application collects a lot of sensor data, which means that we have 1 > table which has about

[PERFORM] Speed / Server

2009-10-04 Thread anthony
All: We have a web-application which is growing ... fast. We're currently running on (1) quad-core Xeon 2.0Ghz with a RAID-1 setup, and 8GB of RAM. Our application collects a lot of sensor data, which means that we have 1 table which has about 8 million rows, and we're adding about 2.5 million r

Re: [PERFORM] Best suiting OS

2009-10-04 Thread david
On Sun, 4 Oct 2009, Devrim G?ND?Z wrote: On Sun, 2009-10-04 at 10:05 -0400, Mark Mielke wrote: RHEL and CentOS are particular bad *right now*. See here: http://en.wikipedia.org/wiki/RHEL http://en.wikipedia.org/wiki/CentOS For RHEL, look down to "Release History" and RHEL 5.3 based

Re: [PERFORM] Best suiting OS

2009-10-04 Thread Gerhard Wiesinger
On Sun, 4 Oct 2009, Mark Mielke wrote: On 10/04/2009 01:55 PM, Devrim GÜNDÜZ wrote: On Sun, 2009-10-04 at 10:05 -0400, Mark Mielke wrote: So any comparisons between operating system *distributions* should be fair. Comparing a 2007 release to a 2009 release, for example, is not fair. RHEL / Ce

Re: [PERFORM] Best suiting OS

2009-10-04 Thread Mark Mielke
On 10/04/2009 01:55 PM, Devrim GÜNDÜZ wrote: On Sun, 2009-10-04 at 10:05 -0400, Mark Mielke wrote: So any comparisons between operating system *distributions* should be fair. Comparing a 2007 release to a 2009 release, for example, is not fair. RHEL / CentOS are basically out of the running

Re: [PERFORM] Confusion on shared buffer

2009-10-04 Thread Robert Haas
On Sun, Oct 4, 2009 at 9:28 AM, Gurjeet Singh wrote: > On Sun, Oct 4, 2009 at 6:32 AM, Robert Haas wrote: >> >> On Sat, Oct 3, 2009 at 2:11 AM, S Arvind wrote: >> > Thanks Robert, >> > So for our scenario what is the most important factor to be >> > noted >> > for performance. >> >> Tou

Re: [PERFORM] Best suiting OS

2009-10-04 Thread Devrim GÜNDÜZ
On Sun, 2009-10-04 at 10:05 -0400, Mark Mielke wrote: > > RHEL and CentOS are particular bad *right now*. See here: > http://en.wikipedia.org/wiki/RHEL > http://en.wikipedia.org/wiki/CentOS > > For RHEL, look down to "Release History" and RHEL 5.3 based on > Linux-2.6.18, released Marc

Re: [PERFORM] Best suiting OS

2009-10-04 Thread Mark Mielke
On 10/01/2009 03:44 PM, Denis Lussier wrote: I'm a BSD license fan, but, I don't know much about *BSD otherwise (except that many advocates say it runs PG very nicely). On the Linux side, unless your a dweeb, go with a newer, popular & well supported release for Production. IMHO, that's RHEL

Re: [PERFORM] Confusion on shared buffer

2009-10-04 Thread Gurjeet Singh
On Sun, Oct 4, 2009 at 6:32 AM, Robert Haas wrote: > On Sat, Oct 3, 2009 at 2:11 AM, S Arvind wrote: > > Thanks Robert, > > So for our scenario what is the most important factor to be > noted > > for performance. > > Tough to say without benchmarking, but if you have a lot of small > da

Re: [PERFORM] Postgres performance

2009-10-04 Thread Gerd Koenig
Hi, there are several performance related issues, thereby it's rather difficult to answer your question shortly. You have to keep in mind not only postgres itself, hardware is also an important factor. Do you have performance problems, which you can describe more detailed ? regards..GERD..