OpenEuphoria

Re: Eu 2.5 is very slow?

• Posted by Matt Lewis <matthewwalkerlewis at ?mail.c?m> Feb 06, 2008
• 521 views

Jonas wrote:
> 
> 
> Hi
> I have compiled eu 3.2 with watcom 1.7 and her is som speed test.
> 
> My modest  computer AMD Sempron 2800 2GHz 2GB
> 
> tags3.1 3.375 Sec
> trunk3.2 17.609 Sec
> Official release 3.1.1 3.5 Sec

The reason seems to be the memory management.  The default using the makefile
is to just use the OS to manage memory.  In this use case, it really, really
slows down (because it's a really simple allocation that's easy to cache).

There was a bug when compiling with MANAGED_MEM=1 (fixed in svn now) so
you could try compiling that.  It seems to run very similarly to previous
releases.  I'll have to test this on Linux, too.  I've run other benchmarks,
usually dealing with sequences, where performance was better using the OS
to do all allocations.

Matt