title: When it is time for a table to change from MyISAM to InnoDb?
body: <p>This question is like a continuation of my previous question:
  <a href="https://stackoverflow.com/questions/1722155/am-i-right-that-innodb-is-better-for-frequent-concurrent-updates-and-inserts-than/">Am I right that InnoDb is better for frequent concurrent updates and inserts than MyISAM?</a></p>
  
  <p>But this time I have concrete questions.<br>
  We know that MyISAM is faster than InnoDb when we don't have many concurrent updates (inserts). When we have many concurrent updates MyISAM table gets locked and all other clients should wait.</p>
  
  <p>1) But when it is time to change from MyISAM to InnoDb? 1 update every second? 10 updates every second? 100 updates every seconds?<br>
  2) For a concrete example, will it be better to change to InnoDb one of the tables on my website where I usually have a few updates per minute (from different sessions), but sometimes it can be ~2-3 updates per second?</p>