Re: What is the better method for using hash??
- From: xhoster@xxxxxxxxx
- Date: 02 Sep 2005 15:55:03 GMT
"sonet" <sonet.all@xxxxxxxxxxxxx> wrote:
> How to compare the memory usage??
I'd do it by measuring their memory usages (on a large enough sample), and
then comparing them. I find this to be convenient if not very portable:
print +(`ps -p $$ -o rss `)[1];
> What is the better??
>
> (A)
> hash1{TYPE1}{VALUE1}='A';
> hash1{TYPE1}{VALUE2}='B';
> hash1{TYPE1}{VALUE3}='C';
> hash1{TYPE2}{VALUE1}='1';
>
> or
> (B)
> TYPE1{VALUE1}='A';
> TYPE1{VALUE2}='B';
> TYPE1{VALUE2}='C';
> TYPE2{VALUE1}='1';
Neither is better. A is a syntax error, and B has nothing to do with
hashes (and is also a syntax error if you use strict).
Xho
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