Re: memory management

On 31 Okt., 14:18, Lew <l...@xxxxxxxxxxxxx> wrote:
Thomas Kellerer wrote:
As far as I can tell, this will create huge strings with the complete
result set, as they are declared outside the loop (actually twice the
result set because one for the out_Record and one for the in_record).
Ingo Menger wrote:
Actually 4-fold, since at the end he does:

log += out_record + in_record;
//out.print(st);
out.print(log);

Just changing this will save 50% memory:

Actually even more than that, because all the intermediate strings are there
from each iteration.

Sure, but the intermediates can be collected. But the "log +=
out_record + in_record" just doubles (at least) the need for
*accessible* memory in one sweep.

Given n iterations, aren't there O(n^2) Strings generated?

Certainly. Wich will give the gc a hard time. The program should not
only use huge amounts of memory but also many ticks in the gc.

.

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