> A while ago I tried overriding the read* methods in BufferedIndexInput like > this: > ............................ > I'm still surprised there was no performance improvement at all. Maybe > something was wrong with my test and I should try it again...
For BufferedIndexInput improvement should be noticeable only when the file you're reading is loaded completely into OS disk cache (which was not your case, I guess). Even then, you're making a syscall for each 1Kb chunk, it could probably dominate 1K method calls. But for RAMDirectory/MMapDirectory you're not reading disk (if disk cache kicked in), and you're not making syscalls. I guess I should stop asking around and try. -- Kirill Zakharenko/Кирилл Захаренко ([email protected]) Home / Mobile: +7 (495) 683-567-4 / +7 (903) 5-888-423 ICQ: 104465785 --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
