On 04/05/2013 03:21 AM, Michael Ellerman wrote: > On Tue, Mar 19, 2013 at 04:55:31PM -0300, Adhemerval Zanella wrote: >> Hi all, >> >> This patch implement the time syscall as vDSO. I have a glibc patch >> to use it as IFUNC (as latest gettimeofday patch). Below the perf >> numbers: >> >> Baseline PPC32: 380 nsec >> Baseline PPC64: 352 nsec >> vdso PPC32: 20 nsec >> vdso PPC64: 20 nsec >> >> I focused on 64 bit kernel, do I need to provide a scheme for 32 bits >> as well? > You did provide a 32-bit implementation. I take it you haven't tested > that though? Can you test it?
Hi, I didn't build a 32 bit kernel, but I tested 32 bits binaries (that uses the VDSO32 implantation) without any issue. Performance gains are similar. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
