GCC Multi-Threading Ideas

Nicholas Krause xerofoify@gmail.com
Thu Jan 23 19:12:00 GMT 2020



On 1/23/20 3:39 AM, Allan Sandfeld Jensen wrote:
> On Montag, 20. Januar 2020 20:26:46 CET Nicholas Krause wrote:
>> Greetings All,
>>
>> Unfortunately due to me being rather busy with school and other things I
>> will not be able to post my article to the wiki for awhile. However
>> there is a  rough draft here:
>> https://docs.google.com/document/d/1po_RRgSCtRyYgMHjV0itW8iOzJXpTdHYIpC9gUMj
>> Oxk/edit that may change a little for people to read in the meantime.
>>
> This comment might not be suited for your project, but now that I think about
> it: If we want to improve gcc toolchain buildspeed with better multithreading.
> I think the most sensible would be fixing up gold multithreading and enabling
> it by default. We already get most of the benefits of multicore architectures
> by running multiple compile jobs in parallel (yes, I know you are focusing on
> cases where that for some reason doesn't work, but it is still the case in
> most situations). The main bottleneck is linking. The code is even already
> there in gold and have been for years, it just haven't been deemed ready for
> being enabled by default.
>
> Is anyone even working on that?
>
> Best regards
> Allan
Allan,
You would need both depending on the project, some are more compiler
bottle necked and others linker. I mentioned that issue at Cauldron as
the other side would be the linker.

Nick
>
>



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