On Fri, Dec 16, 2011 at 8:52 PM, Kent Tong <freemant2...@yahoo.com> wrote: > Hi, > > From the source code I can see that for each key, the hash (token), the key > itself (ByteBuffer) and the position (long. offset in the sstable) are stored > into the key cache. The hash is an MD5 hash, so it is 16 bytes. So, the total > size required is at least 16+size-of(key)+4 which is > 20 bytes. If we > consider the overhead of the object references, then it will be even larger. > Then, why the wiki recommends multiplying the number of keys cached with > 10-12 to get the memory requirement?
In a word: java. -Brandon
