Messages in this thread | | | From | Namhyung Kim <> | Date | Wed, 27 May 2015 23:59:04 +0900 | Subject | Re: [PATCH 2/4] perf: jevents: Program to convert JSON file to C style file |
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Hi Andi,
On Wed, May 27, 2015 at 11:40 PM, Andi Kleen <ak@linux.intel.com> wrote: >> So we build tables of all models in the architecture, and choose >> matching one when compiling perf, right? Can't we do that when >> building the tables? IOW, why don't we check the VFM and discard >> non-matching tables? Those non-matching tables are also needed? > > We build it for all cpus in an architecture, not all architectures. > So e.g. for an x86 binary power is not included, and vice versa.
OK.
> It always includes all CPUs for a given architecture, so it's possible > to use the perf binary on other systems than just the one it was > build on.
So it selects one at run-time not build-time, good. But I worry about the size of the intel tables. How large are they? Maybe we can make it dynamic-loadable if needed..
Thanks, Namhyung
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