search for: premachandra

Displaying 3 results from an estimated 3 matches for "premachandra".

2020 Jul 21
7
New x86-64 micro-architecture levels
* Premachandra Mallappa: > [AMD Public Use] > > Hi Floarian, > >> I'm including a proposal for the levels below. I use single letters for them, but I expect that the concrete implementation of this proposal will use >> names like “x86-100”, “x86-101”, like in the glibc patch referen...
2020 Jul 23
1
New x86-64 micro-architecture levels
Hello, On Wed, 22 Jul 2020, Mallappa, Premachandra wrote: > > That's deliberate, so that we can use the same x86-* names for 32-bit library selection (once we define matching micro-architecture levels there). > > Understood. > > > If numbers are out, what should we use instead? > > x86-sse4, x86-avx2, x86-avx512?...
2020 Jul 10
12
New x86-64 micro-architecture levels
Most Linux distributions still compile against the original x86-64 baseline that was based on the AMD K8 (minus the 3DNow! parts, for Intel EM64T compatibility). There has been an attempt to use the existing AT_PLATFORM-based loading mechanism in the glibc dynamic linker to enable a selection of optimized libraries. But the general selection mechanism in glibc is problematic: hwcaps