title: Scalable memory allocator experiences
body: <p>I am currently evaluating a few of scalable memory allocators, namely nedmalloc and ptmalloc (both built on top of dlmalloc), as a replacement for default malloc / new because of significant contention seen in multithreaded environment. Their published performance seems to be good, however I would like to check what are experiences of other people who have really used them.</p>
  
  <ul>
  <li>Were your performance goals satisfied?</li>
  <li>Did you experience any unexpected or hard to solve issues (like heap corruption)?</li>
  <li>If you have tried both ptmaalloc and nedmalloc, which of the two would you recommend? Why (ease of use, performance)?</li>
  <li>Or perhaps you would recommend another scalable allocator (free with a permissible license preferred)?</li>
  </ul>