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VFP vs Other languages (Python/Ruby)
Message
General information
Forum:
Visual FoxPro
Category:
Other
Environment versions
Visual FoxPro:
VFP 9 SP2
OS:
Windows Server 2003
Network:
Windows 2003 Server
Database:
Visual FoxPro
Application:
Desktop
Miscellaneous
Thread ID:
01511347
Message ID:
01511352
Views:
174
>Hi All,
>
>Not really a Fox question specifically but thought someone here might have an idea on this.
>
>I am wondering just how code execution speed of VFP compares to other languages such as Python and Ruby? Take for example the following 10million times loop:
>
>nStart = SECONDS()
>a = 0
>b = RAND()
>FOR x = 1 TO 10000000
>	a = a + b
>NEXT
>nStop = SECONDS()
>? nStop-nStart, X, a
>
>
>This runs on my machine in VFP in 2.4secs. Any idea how fast it would run in either of the alternative languages?
>
>Thanks,

I'm not a process timer guru, but as a brain exercise decided to try your code in VFP 9 and what I think is a similar process in C# on my box -

i7 cpu 1.73 ghz
6 gb ram
Win 7 64 bit

Your code in my vfp 9 sp 2

6.9 to 7.9 seconds on ten tests
using 100,000,000 in the loop - 79.889 seconds

This is my C# test :
        static void Main(string[] args)
        {
            Random random = new Random();
            int a = 0;
            int b = random.Next();
            Stopwatch stopwatch = new Stopwatch();
            stopwatch.Start();
            for (int i = 0; i < 10000000; i++)
            {
                a += b;
            }

            stopwatch.Stop();

            TimeSpan elapsedTime = stopwatch.Elapsed;
            Console.WriteLine(elapsedTime.ToString());
            Console.Read();
        }
This does the 10,000,000 loop in .06 seconds.

It appears your VFP code only generates one random number, so I tried to emulate that. If i move the generation of the random number inside the loop

a += random.New();

the whole process takes between .44 and .48 seconds.

Since I know as a matter of catechism that nothing is faster than the Fox, I am sure my methodology must be flawed, but I find it interesting, nonethless and would welcome explanation.


Charles Hankey

Though a good deal is too strange to be believed, nothing is too strange to have happened.
- Thomas Hardy

Half the harm that is done in this world is due to people who want to feel important. They don't mean to do harm-- but the harm does not interest them. Or they do not see it, or they justify it because they are absorbed in the endless struggle to think well of themselves.

-- T. S. Eliot
Democracy is two wolves and a sheep voting on what to have for lunch.
Liberty is a well-armed sheep contesting the vote.
- Ben Franklin

Pardon him, Theodotus. He is a barbarian, and thinks that the customs of his tribe and island are the laws of nature.
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