Performance Regression

theoutfield · 2013-06-18T01:49:15

I have been using Angelscript version 2.19.2 for quite a while. I am in the process of porting an application to Linux and decided to download the latest library 2.26.2. To test the two versions I was using the tutorial sample with the LineCallback not registered to increase performance (simple commented out the registration code). I modify the script.as file in the tutorial to include this loop double x = 0.00; int64 startTime = GetSystemTime(); for(int i=0; i<10000; i++) { x += i * 1.23 + 4.56; } int64 endTime = GetSystemTime(); Print("Total time = " + (endTime - startTime)/1000.0 + "\n"); In version 2.19.2 this takes about 1ms on a 2.8GHz machine. Version 2.26.2 takes about 4ms. When compiling the tutorial for version 2.19.2 I got the following error. I simply commented out this line for now. g++ -ggdb -I../../../../angelscript/include -D_LINUX_ -o obj/scriptstring.o -c ../../../../add_on/scriptstring/scriptstring.cpp ../../../../add_on/scriptstring/scriptstring.cpp: In function ‘void RegisterScriptString_Native(asIScriptEngine*)’: ../../../../add_on/scriptstring/scriptstring.cpp:646:86: error: invalid static_cast from type ‘<unresolved overloaded function type>’ to type ‘bool (*)(const string&, const string&) {aka bool (*)(const std::basic_string<char>&, const std::basic_string<char>&)}’ make: *** [obj/scriptstring.o] Error 1 I haven't tried any of the other versions yet. Were there any major changes that would affect the loop performance? Thanks, Tony

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Started by theoutfield June 05, 2013 01:45 PM

9 comments, last by theoutfield 10 years, 10 months ago

theoutfield

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June 18, 2013 01:49 AM

Thanks for the response Andreas. It makes good sense now that you explained it. I'm pretty impressed that Angelscript is about 10x faster than Python for this simple test case. I've finished up the port of my control app to Linux now. I am using the PREEMPT_RT patch and I'm getting some pretty impressive results.

Performance Regression

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