Re: NetBSD 2 vs the rest with MySQL
Chuck Silvers <[email protected]> Tue, 15 Feb 2005 18:32:10 -0800
| Newsgroups | gmane.os.netbsd.devel.performance,gmane.os.netbsd.advocacy |
|---|---|
| Message-ID | <[email protected]> |
On Wed, Feb 16, 2005 at 04:18:41AM +0900, SODA Noriyuki wrote: > > (of course, what databases that do their own caching really want is > > unbuffered I/O, but mysql appears to rely on the OS file cache since > > the mysqld process is only 60MB on this machine with 3GB of RAM. > > maybe that's just how it's configured by default, > > The MySQL configuration that the author of the report used is > described in previous article: > http://software.newsforge.com/software/04/12/27/1238216.shtml?tid=72&tid=29 > > i.e. > innodb_buffer_pool_size=256M > innodb_log_file_size=128M > innodb_log_buffer_size=8M > innodb_flush_log_at_trx_commit=1 > > Since the machine only has 512MB RAM, more than half of the memory > (256MB+8MB) are allocated to the database cache. hmm, I had applied those setting without paying attention to what they were. even with those, the mysqld process never got above 60-odd MB in size. it's not using any sysv shared memory, so where is the cached data going? I'm sure I'm just being dense here. :-) -Chuck