PowerPC: gettimeofday optimization by using IFUNC

Andi Kleen andi@firstfloor.org
Fri Feb 22 20:18:00 GMT 2013


Adhemerval Zanella <azanella@linux.vnet.ibm.com> writes:

> Hi,
>
> This patch make gettimeofday uses IFUNC and optimizing its call by avoid
> the unnecessary way through glibc's internal __gettimeofday. Any tips,
> advices, comments?

Very nice optimizations. The extra round trip always annoyed me.  And
using IFUNC for it is a nice trick.  Is it possible to do on x86 too?

-- 
ak@linux.intel.com -- Speaking for myself only



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