On Thu, 3 Mar 2022, 19:43 FMDF, <[email protected]> wrote:
> On Thu, 3 Mar 2022, 16:21 Guddla Rupesh, <[email protected]> wrote: > > I think that all the kernels shipped by distros are not considering latest >> processors instruction set. I think that even windows is doing the same. >> >> If opencl is detected properly any application can have improvement in >> performance about 10 percent. >> >> I can't find any option to set opencl in the Linux kernel config file or >> in any of the kernel source files. >> >> Atleast I am lucky to select option core 2 in the main .config file of >> kernel. >> >> Finally my request is there any way to export instruct set of my cpu to >> the kernel configuration and so after compilation my video encoding takes >> less time than previous. >> >> If it's a difficult task leave it and if it's possible try to suggest how >> to do so. >> > > You have not read Torin's and my replies. I can assure you that Linux uses > ALL the latest extensions of Intel and AMD instruction sets. > > And you didn't even read the code that Torin pointed out to you. > > Personally I have written documentation for various x86-64 newer > subsystem. There is nothing of those ISA that Linux kernel and OS don't > support. The fact that the configuration option is simply called > CONFIG_CORE2 (or whatever) has no meaning at all. > > If you can, please attach GDB to executing code or read the Assembly > output by GCC and see yourself what instructions Linux uses in the > subsystems of your choice. > > Regards, > > Fabio M. De Francesco > >>
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