Hello, I was wondering if anyone has experienced significant performance degradation after compiling a program with pyinstaller. When I run a program via source, its approximately 10 times faster than the exact same code in binary form. I'm aware of the minimal delay during startup that is known/expected with pyinstaller binaries and I don't believe that is the issue here.
Here's an example: 1) check out the volatility source $ git clone https://github.com/volatilityfoundation/volatility.git 2) run the "filescan" plugin with volatility as source $ time python volatility/vol.py -f memdump.mem filescan > /dev/null real 1m31.799s user 1m25.953s sys 0m5.660s 3) check out the latest dev pyinstaller $ git clone https://github.com/pyinstaller/pyinstaller.git 4) compile volatility (this is being done on a 64-bit Debian Linux system) $ python pyinstaller/pyinstaller.py -F volatility/pyinstaller.spec 5) run the "filescan" plugin with volatility as a pyinstaller binary $ time ./dist/volatility -f memdump.mem filescan > /dev/null real 14m31.405s user 14m23.970s sys 0m5.700s As you can see, the exact same code took 14m31s after being compiled, but it only took 1m31s in source form. If you're not familiar with volatility (or the filescan plugin) it is essentially scanning through a large memory dump file (several GB big) looking for specific signatures/byte patterns and then interpreting data at the matching addresses as C data structures (in short, memory forensics). What would you suggest for troubleshooting this type of performance problem? Also, are there any known types of activities (i.e. disk I/O, network I/O, GUI interactions) or specific modules/APIs that result in severe slowdowns when compiled or should speeds theoretically be pretty similar between the source and binary versions (minus the tiny initial startup delay)? Thank you! MHL -- You received this message because you are subscribed to the Google Groups "PyInstaller" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/pyinstaller. For more options, visit https://groups.google.com/d/optout.
