> > Keep in mind that due to cache alignment (and other) issues, runs of the same > > executable can vary in speed by almost half depending on where in the buffer > > cache they get placed. > > I've never found a discrepance of 1/2 in any significant sized program, but > I sometimes see variations of +/-5%. (in gprof output etc) Oh, I knew I should have mentioned that this was Linux :-) I'm sure it's possible elsewhere, but what I describe I saw under 2.0 Linux kernels. I wonder is 2.2 does the same thing.... Monty -- MP3 ENCODER mailing list ( http://geek.rcc.se/mp3encoder/ )
- [MP3 ENCODER] LAME 3.32 speed Paul Hartman
- Re: [MP3 ENCODER] LAME 3.32 speed Monty
- Re: [MP3 ENCODER] LAME 3.32 speed mikecheng
- Re: [MP3 ENCODER] LAME 3.32 speed Monty
- Re: [MP3 ENCODER] LAME 3.32 speed Paul Hartman
- Re: [MP3 ENCODER] LAME 3.32 speed Takehiro Tominaga
- Re: [MP3 ENCODER] LAME 3.32 speed Erik de Castro Lopo
- double precision (Re: [MP3 ENCODER] LAME ... Takehiro Tominaga
- Re: double precision (Re: [MP3 ENCODE... Erik de Castro Lopo
- Re: double precision (Re: [MP3 E... Patrick De Smet
- Re: double precision (Re: [MP3 ENCODE... Robert Hegemann
- Re: [MP3 ENCODER] LAME 3.32 speed Greg Maxwell
