[Date Prev][Date Next][Thread Prev][Thread Next]
- Subject: Re: out of memory
- From: Enrico Colombini <erix@...>
- Date: Sun, 06 Oct 2002 12:22:16 +0200
>I'll run some tests with QBasic or VBD and see what comes out.
Here are the results. I had to use a 16-bit DOS Basic (Microsoft's VBD) as
I don't have a 32-bit Basic installed, so the results are probably skewed
(I don't know in what direction, but 16-bit computations are *probably*
faster - I don't know modern CPUs well enough to tell; on the other hand,
the Basic program ran in a limited memory space).
I was also forced to limit the string size to about 30 kB (could somebody
re-run the test using VB?).
s = ""
for i = 1,30000 do
s = s .. "x"
s$ = ""
FOR i = 1 TO 30000
s$ = s$ + "x"
Running times on my Pentium II/350, in seconds:
Lua (standalone interpreter): 7.75
VBD (interpreted): 4.94
VBD (compiled): 0.17
The first two results are more or less equivalent (it could boil down to
the 32-bit vs. 16-bit difference), but the third one sounds interesting.
Maybe there could be space for string concatenation optimization, after all.