Hello, So, why are we not using -gc3 all the time? What are the downsides of using -gc3?
Thanks! Patrick 2011/11/10 Przemysław Czerpak <dru...@poczta.onet.pl>: > On Thu, 10 Nov 2011, Enrico Maria Giordano wrote: >> > > This is not a real world test, sorry. >> > Can you exaplain why? >> You don't need of my explanation. You know much better than me of what I'm >> talking about. > > For me it's perfect test which shows the performance of different > HVM operations so I'm very interesting why you do not find it as > good enough to compare HVM performance and you are expecting different > results in real life applications. You are presenting such opinion > in different public forums and I would like to know why and what is > wrong in this tests so I can improve it. > > Anyhow maybe you will find this real life code as more interesting. > Long time ago one of my friends asked me about help in one mathematical > problem. He had to resolve this equation: > > TOTEK > + TO > + TWOJA > ========= > SZANSA > > knowing that T, O, E, K, W, J, A, S, Z and N are different decimal > digits. (BTW in free translation above means: 'lottery is your chance' > I'm attaching PRG code which calculates it. It's example of dynamic > programing very often used to resolve real life problems in business > applications like 'the best (shortest) way for van', 'the most efficient > rules to invest money in production of different goods', etc. so without > any doubts it is a real speed example for anyone who has to create > expensive calculations at PRG level. > Below are results of this test I've just made in my system: > > xHarbour -n -w -es2 -l -gc0 > real time: 23.07 sec. > CPU time: 23.06 sec. > > xHarbour -n -w -es2 -l -gc3 > real time: 14.69 sec. > CPU time: 14.69 sec. > > Harbour -n -w -es2 -l -kmo -gc0 > real time: 15.62 sec. > CPU time: 15.60 sec. > > Harbour -n -w -es2 -l -kmo -gc3 > real time: 10.79 sec. > CPU time: 10.77 sec. > > Please note that it's rather small problem and in real life we > have to calculates much bigger things. > > best regards, > Przemek > > ------------------------------------------------------------------------------ > RSA(R) Conference 2012 > Save $700 by Nov 18 > Register now > http://p.sf.net/sfu/rsa-sfdev2dev1 > _______________________________________________ > xHarbour-developers mailing list > xHarbour-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/xharbour-developers > > ------------------------------------------------------------------------------ RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 _______________________________________________ xHarbour-developers mailing list xHarbour-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xharbour-developers
