5 Mar
2009
5 Mar
'09
6:30 a.m.
Bulat Ziganshin ha scritto:
Hello Manlio,
Tuesday, March 3, 2009, 5:35:33 PM, you wrote:
There are 100,000,000 ratings, so I create 100,000,000 arrays containing only one element.
every array needs ~30 bytes - it's a minimal memory block ghc can alloc for variable-sized objects. multiple this by 3 to account for copying GC behavior
Ok, this explains memory usage; thanks. IMHO, this informations should go in the wiki; they may be insignificant for normal applications, but when one starts to deal with huge amount of data, 10 bytes per item make an important difference. Manlio Perillo