Re: [PERFORM] PostgreSQL VACCUM killing CPU

2006-05-10 Thread Wu Fengguang
On Tue, May 09, 2006 at 03:19:08AM -0700, [EMAIL PROTECTED] wrote: > I have got such problem. > Im running Postgresql 7.3.2 on Linux 2.6.13. > What is see when VACCUM is running and killing my CPU is: > > Cpu(s): 3.2% us, 0.0% sy, 0.0% ni, 0.0% id, 96.8% wa, 0.0% hi, > 0.0% si > > what i am

Re: [PERFORM] PostgreSQL VACCUM killing CPU

2006-05-09 Thread Michael Glaesemann
I have got such problem. Im running Postgresql 7.3.2 on Linux 2.6.13. Also, you should seriously consider upgrading. 8.1.3 is the current PostgreSQL release. If you must remain on 7.3, at least upgrade to 7.3.14, which contains many bugfixes. Michael Glaesemann grzm seespotcode net -

Re: [PERFORM] PostgreSQL VACCUM killing CPU

2006-05-09 Thread Michael Glaesemann
I have got such problem. Im running Postgresql 7.3.2 on Linux 2.6.13. Also, you should seriously consider upgrading. 8.1.3 is the current PostgreSQL release. If you must remain on 7.3, at least upgrade to 7.3.14, which contains *many* bugfixes. Michael Glaesemann grzm seespotcode net

Re: [PERFORM] PostgreSQL VACCUM killing CPU

2006-05-09 Thread Will Reese
The "wa" means waiting on IO. Vacuum is a very IO intensive process. You can use tools like vmstat and iostat to see how much disk IO is occurring. Also, sar is very helpful for trending these values over time. -- Will Reese http://blog.rezra.com On May 9, 2006, at 5:19 AM, [EMAIL PROT

[PERFORM] PostgreSQL VACCUM killing CPU

2006-05-09 Thread blender
Hi all ! I have got such problem. Im running Postgresql 7.3.2 on Linux 2.6.13. What is see when VACCUM is running and killing my CPU is: Cpu(s): 3.2% us, 0.0% sy, 0.0% ni, 0.0% id, 96.8% wa, 0.0% hi, 0.0% si what i am worry about is "96.8% wa" why is it like that? what is the process waiti