[llvm-dev] Memory utilization problems in profile reader
Diego Novillo via llvm-dev
llvm-dev at lists.llvm.org
Thu Dec 10 12:56:55 PST 2015
On Wed, Dec 9, 2015 at 3:14 PM, Xinliang David Li <xinliangli at gmail.com>
> Can you extract the relevant part of the heap profile data?
It's all profile data, actually. The heap utilization is massively
dominated by the profile reader.
> How large is the sample profile data fed to the compiler?
For this run, the input file was 21Mb.
> The indexed format profile size for clang is <100MB. The InstrProfRecord
> for each function is read, used and discarded one at a time, so there
> should not be problem as described.
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