[PATCH 0/2] Enable MSR_TM lazily

Carlos Eduardo Seo cseo at linux.vnet.ibm.com
Thu Sep 15 00:10:22 AEST 2016



On 9/14/16 8:28 AM, Nicholas Piggin wrote:
>
> How common it is for glibc to be built with elision?
>

Not that common. We have it built with TLE support in Ubuntu (starting 
in 15.04), SLES 12 (since SP2) and AT 9.0-0.

However, it is only enabled by default in Ubuntu. For SLES and AT 9.0, 
the user has to set an env var to enable it (it's a hack).

There is some work upstream to add a tunables framework to glibc. That 
will allow us to properly provide a way to users enable/disable TLE as 
they wish. That patch is almost in, and as soon as it's committed, we'll 
start working on the tunable for TLE.

-- 
Carlos Eduardo Seo
Software Engineer - Linux on Power Toolchain
cseo at linux.vnet.ibm.com



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