Re: [boost] Is a 3% timing difference reliably repeatable in real code?

2003-05-08 Thread Beman Dawes
At 11:11 AM 5/8/2003, Darin Adler wrote: >On Thursday, May 8, 2003, at 07:04 AM, Beman Dawes wrote: > >> A 2-3% timing difference probably isn't reliably repeatable in real >> code. >> >> How code and data happens to land in hardware caches can easily swamp >> out such a small difference. The vers

[boost] Is a 3% timing difference reliably repeatable in real code?

2003-05-08 Thread Darin Adler
On Thursday, May 8, 2003, at 07:04 AM, Beman Dawes wrote: A 2-3% timing difference probably isn't reliably repeatable in real code. How code and data happens to land in hardware caches can easily swamp out such a small difference. The version-to-version or step-to-step differences in CPU's, me