Re: [Boost-users] performance tuning on boost version 1_64_0

Subject: Re: [Boost-users] performance tuning on boost version 1_64_0
From: degski (degski_at_[hidden])
Date: 2017-07-04 05:29:13

On 3 July 2017 at 18:05, Connie Zhang via Boost-users <
boost-users_at_[hidden]> wrote:

> Is that the only way to turn off debug completely? I though /Od is to turn
> off the debug mode. Is that correct?
>

No, /Od disables optimisation (the O stands for Optimisation (or rather
Optimization)), use /O2 or /Ox instead. The NDEBUG preprocessor directive
turns-off debugging. You will also need to link to the release CRT's, i.e.
/MD or /MT. On the "Code Generation" options page, there are a number of
things you can turn off (like smaller type check, exceptions, security
check), which will affect the execution-speed of the code. You can also use
the "Profile Guided Optimization" tools on the "General" tab, which will
try and optimize the code paths that are actually taken the most in your
app, as opposed to the optimiser guessing.

But, most of all measure (tricky on Windows) and see what works best for
your app.

degski
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