no swapping so far I can see where I'm 'asking for' more then 8 GB, but for testing, I gambling that the total amount of test data is less then 8GB. also, i'm currently only doing tests with only one query at a time.
one thing i've notices is the memory being consumed by mysqld has so far not gone above 1 GB (both resident, and requested). -pete -----Original Message----- From: walt [mailto:[EMAIL PROTECTED] Sent: Tuesday, February 17, 2004 10:47 AM To: Lancashire, Pete Cc: [EMAIL PROTECTED] Subject: Re: what can i change in my.cnf/mysqld to get better perfomance Pete, I was just glancing at this and it looks like you have about 13.5GB of memory allocated on a 8GB machine (4096+4096+512+4096+1024). Are you swapping badly?? walt "Lancashire, Pete" wrote: > > I'm doing some tests on a small Sun server, a 280R to demo MySQL vs. > Oracle. For the demo I using a subset of a test table. > > The destination server will be a Sun 880 with 8 1.2 GHz CPU's, 16 GB > RAM, Sun T3+ RAID Array. > > Any suggestions on settings or other changes would be helpful. > > Also what would be the best variables/settings to compile a binary for > a server of this type ? Gcc 3.3.2, Solaris 9. > > number of rows is only 10,735,291 > > MYD is 6.7 GBytes, and MYI is 1.4 GBytes. > > This table is a subset of the real table of about 120 Gb. > > the test/lab server is a small sun box with 2 each 900 MHz CPUs, and 8 > GB of RAM. > > I'm trying to avoid using disk until I get a better performance disk > subsystem. > > The version is the website binary, solaris 64 bit. > > the setting i currently have > > [mysqld] > set-variable = myisam_sort_buffer_size=4096M > set-variable = sort_buffer_size=4096M > set-variable = read_buffer_size=512M > set-variable = key_buffer_size=4096M > set-variable = table_cache=1024 > > tmp_table_size = 1024M > max_heap_table_size = 1024M > > a search on text fields such as > > select substring_index(request_uri,'/',-1) jsp, count(*) from > apache_jan where request_is_jsp = 1 group by jsp; > > takes 8 1/2 minutes. > > A rebuild of the indexes takes over 8 hours. > > the table format > > CREATE TABLE `apache_jan` ( > `dt` datetime NOT NULL default '0000-00-00 00:00:00', > `hostname` varchar(125) default NULL, > `ip` varchar(15) default NULL, > `ipn` int(10) unsigned default NULL, > `user` varchar(125) default NULL, > `timetaken` float default NULL, > `auth` varchar(255) default NULL, > `request` text, > `request_type` varchar(255) default NULL, > `request_uri` text, > `request_file` varchar(255) default NULL, > `request_is_jsp` tinyint(1) default NULL, > `request_is_servlet` tinyint(1) default NULL, > `request_query` text, > `request_version` varchar(255) default NULL, > `status` smallint(3) unsigned default NULL, > `status_orig` smallint(3) unsigned default NULL, > `bytes` int(11) default NULL, > `bytes_i` int(11) default NULL, > `bytes_o` int(11) default NULL, > `header` text, > `header_uri` text, > `header_file` varchar(255) default NULL, > `header_is_jsp` tinyint(1) default NULL, > `useragent` varchar(255) default NULL, > `biz_obj` varchar(255) default NULL, > KEY `dt` (`dt`), > KEY `hostname` (`hostname`), > KEY `ip` (`ip`), > KEY `status` (`status`), > KEY `request_is_jsp` (`request_is_jsp`), > KEY `request_is_servlet` (`request_is_servlet`), > KEY `request_file` (`request_file`), > KEY `header_file` (`header_file`), > KEY `header_is_jsp` (`header_is_jsp`), > KEY `ipn` (`ipn`) > ) TYPE=MyISAM DEFAULT CHARSET=latin1 MAX_ROWS=200000000 > AVG_ROW_LENGTH=600 INDEX DIRECTORY='/DISK1/MYSQL/pdm/' > > -- > MySQL General Mailing List > For list archives: http://lists.mysql.com/mysql > To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
