23 Nov
2009
23 Nov
'09
8:21 p.m.
Mark Burton schrieb:
As the object sizes are rounded to multiples of 8, it looks like a case of buy one, and get 7 for free!
Yes, just tried that and the same amount of memory is used for 1 boolean and 8 booleans.
Sorry, I cannot confirm this. Out of personal interest I have run your test programm with OpenJDK6 and get following results: johann@ubuntu910:~/workspace>java Test Size for LotsOfBooleans: 87978536 Average size: 87.978536 Size for LotsOfInts: 336000000 Average size: 336.0 This means 1Byte/Boolean and 4Bytes/Int plus 8 Byte per Instance of object, as I expected it. Maybe I had to run the vm with a java option? Regards, Johann