Why you should ignore MySQL's key cache hit ratioI have not caused a fist fight in a while, so it’s time to take off the gloves. I claim that somewhere around of 99% of advice about tuning MySQL’s key cache hit ratio is wrong, even when you hear it from experts. There are two major problems with the key buffer hit ratio, and a host of smaller ones. If you make some assumptions that are very hard to prove, there actually is a very limited use for
ディスクキャッシュを簡単にクリアする - 射撃しつつ前転 改
