Re: [PATCH 1/2] Add framework for tunables

[Florian Weimer <fweimer at redhat dot com>]

On 07/11/2016 06:05 PM, Florian Weimer wrote:
> This is indeed closer to what I had in mind.  But what I really want is
> something that can patch the tunables directly into a place which malloc
> can use.  My hope is that one day, we have a tunable descriptor inside
> libc.so, and (rarely written) range in the .data segment which contains
> the tunable variables.  Code which relies on tunables directly access
> the tunable range (using relaxed MO loads), and some external tool can
> use the tunables descriptor to update the tunables at run time.

Just to clarify: I don't see this an obstacle to applying the present 
patch.  I merely hope we can agree this is a direction we want to move in.

The main problem I see with the patch is the lack of equivalence with 
the mallopt-based approach.

Thanks,
Florian