On Monday 06 July 2009, John Doe wrote:
Hi,
I have a little question about memory usage...
When I do a free, I get:
/proc/meminfo may give you a more detailed summary.
/Peter
total used free shared buffers cachedMem: 18482800 18030668 452132 0 683068 9426792 -/+ buffers/cache: 7920808 10561992
But, when I do a ps, mysql is the only process that takes noticable memory; and it is far from 7.9GBs...
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND mysql 28346 36.0 15.6 3241196 2884692 ? Sl Jul04 981:19 _ /usr/libexec/mysqld --basedir=/usr --datadir=/IOL/mysql --user=mysql --pid-file=/var/run/mysqld/mysqld.pid --skip-external-locking --port=3306 --socket=/IOL/mysql/mysql.sock
Once you removed the buffers and the cached memory from the total used memory... what is left? Looks like I have "something" (that is not buffers/cached) that takes more than 4GB... Could it be disk cache or is it included in the cached value? Any idea?
Thx, JD