[Mesa-dev] Improving ralloc performance for the GLSL compiler

[Eero Tamminen]

HI,

On 31.08.2016 15:40, Marek Olšák wrote:
> On Aug 31, 2016 5:02 AM, "Michel Dänzer" <michel at daenzer.net> wrote:
>>
>> On 30/08/16 06:51 PM, Marek Olšák wrote:
>>>
>>> If we don't care about memory usage, let's use my allocator. If we do,
>>> let's import jemalloc into the Mesa tree and use it for ralloc.
>>
>> Instead of importing jemalloc into Mesa, could we use the shared
>> libjemalloc.so.1?
>
> No idea. It exports malloc/free/etc, but "nm" says "there are no
> symbols".

That's because it's a dynamic library (basically an executable), not an 
archive of objects, which nm knows about.

You can use either objdump -T or readelf -s to list dynamic library 
symbols.  It should be enough to add it to Mesa linker line as dependency.

Using the static version of jemalloc instead of dynamic version gave 
extra boost (as would be using static version of glibc's ptmalloc), so 
that could be considered also instead of importing jemalloc sources to 
Mesa source tree.


	- Eero

> Perhaps they can only be dlsym'd.