"Chris Lasher" <[EMAIL PROTECTED]> writes: > Forgive my ignorance, but what does using mmap do for the script? My > guess is that it improves performance, but I'm not sure how. I read the > module documentation and the module appears to be a way to read out > information from memory (RAM maybe?).
Mmap lets you treat a disk file as an array, so you can randomly access the bytes in the file without having to do seek operations. Just say a[234]='x' and you've changed byte 234 of the file to the letter x. It works through the OS's virtual memory system and the computer's MMU hardware, and so it has lower overhead than doing system calls for every access. -- http://mail.python.org/mailman/listinfo/python-list
