Brent, Would you be so kind to throw out some links to "tweaking" mysql to run to its full performance. I am googling right now for the answeres. Is there books you would recommend?
THANKS!!!!!!!!!!!!!!!! On Tue, 2004-11-23 at 14:29 -0500, Brent Baisley wrote: > I could see how the Pentium 4 may be faster for certain things. In some > cases, older Pentiums with larger caches (i.e. 2MB) would outperform a > Pentium 4. Rumor has it that MySQL loves level 2 cache, but don't tell > PHP. But in this case, the Pentium 4 and Xeon I'm pretty sure both have > 512K level 2 cache. However, the Xeon is designed as a server > processor, meaning it can handle many tasks very well. Give the Xeon > just one task and it's kind of mediocre. This is fairly evident with > reviews comparing the Xeon to the AMD fx5X series. The AMD chip beats > the Xeon pretty convincingly in single tasks. But the Xeon really > shines when the system is doing multiple tasks and there may be a lot > of context switching. The Pentium is like the AMD, it can do one task > very well. > The Xeon should perform much better then the Pentium under heavy load, > multitasking loads. > > Also, I think the Xeon's interface to memory is DDR266, where the > Pentium is DDR400. That can be a pretty significant speed difference > when you are really pumping data around. > > What's the difference in hard drive speeds? 500GB doesn't really say > much except that if it's just one drive, it's probably some sort of ATA > with a slow rotation speed (i.e. 7200). An 18GB SCSI would probably > outperform the 500GB ATA drive under heavy multitasking loads because > of command queuing. Command queueing is just starting to become > available in SATA drives. What kind of drive is in the Pentium? The > cache on the drive matters too. > > So, that said, I'm assuming you didn't try the "lowly" Pentium 4 under > the typical heavy load you expect. > > Now, since this is a MySQL discussion area, I think I should move away > from hardware. You should serialize your insert queries if you haven't > already. Meaning, run them one at a time instead of concurrently. And > of course, before you do anything, make sure you've tweaked your MySQL > configuration settings. > > > On Nov 23, 2004, at 12:41 PM, Carlos Augusto wrote: > > > Well that´s me again with a new problem. I am runnig another database > > with 7gb of data and this db can´t stop. All the time we have queries > > being inserted by a plain text file and all the time customers get > > information of this database. I obvserved that for a insert query is > > taking about 5 to 15 seconds for each insert. I saw some variables > > like: slow_query that output me a number of 1388 slow queries. I am > > new in mysql and database stuff and i have a task to improve mysql´s > > performance. I need help since in a simple Pentium 4 the same > > operations are almost 10 times higher(in time of inserting a querie) > > and this machine that is too slow for inserting is an dual xeon, 4gb > > ram and 500gb hard disk. > > I aprecciate if some one has a solution for improving this server > > performance. > > > > Thanks. > > Carlos > > > > -- > > MySQL General Mailing List > > For list archives: http://lists.mysql.com/mysql > > To unsubscribe: > > http://lists.mysql.com/[EMAIL PROTECTED] > > > > > > > -- > Brent Baisley > Systems Architect > Landover Associates, Inc. > Search & Advisory Services for Advanced Technology Environments > p: 212.759.6400/800.759.0577 > > -- ------------- Vasiliy Boulytchev Colorado Information Technologies Inc. http://www.coinfotech.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]