On 2000-10-12 19:09, t s a d i wrote:
> what hardware can you recommend? single processor? dual? SCSI's?
> i need all the speed i can get (my mysql db is about 300MB big) ...
If you have a small database then the solution to most performance problems
is to make RAM larger than the database. Get 512M of RAM so that after a few
minutes all the data is in cache and no data has to be read from disk.
If you are doing serious amounts of searching on the database then CPU power
is good. Is the mysql server threaded or using multiple processes? If so
then multiple CPUs will help. However if you have a single-CPU machine then
it's much cheaper and upgrading it regularly is less financially painful, CPU
speeds double every 18 months, how fast do your performance requirements
increase?
Then there is the issue of disk write speed, as a general rule databases like
to do lots of synchronous writes involving seeks all over the drive. RAID-0
should help significantly with this if the block size is right. Of course if
you have RAID-0 then you also need RAID-1 over that which is a minimum of 4
hard drives.
Also use my ZCAV program (part of the Bonnie++ suite) to find the region of
your hard drives that gives the best performance and put the database
partition on that part. It's at the start of the drive on most drives but on
some it's at the end.
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http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark
http://www.coker.com.au/postal/ Postal SMTP/POP benchmark
http://www.coker.com.au/projects.html Projects I am working on
http://www.coker.com.au/~russell/ My home page
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