[PATCH] D86295: [analyzer] Reorder the layout of MemRegion and cache by hand for optimal size

Mon Aug 24 02:09:48 PDT 2020

martong added a comment.

In D86295#2232005 <https://reviews.llvm.org/D86295#2232005>, @steakhal wrote:

> In D86295#2231760 <https://reviews.llvm.org/D86295#2231760>, @NoQ wrote:
>
>> I mean, like, you can measure the entire process with `time` or something like that. I believe @vsavchenko's docker thingy already knows how to do that.
>
> I tried to measure this with `time`, without much luck:
> F12735724: time-verbose-results.txt <https://reviews.llvm.org/F12735724>
>
>> What i'm trying to say is that for almost every region //R// it's a trivial O(1) operation that yields `RegionOffset` (//R//, +0). It is only non-trivial for non-base regions like `FieldRegion` or `ElementRegion` or, well, `CXXBaseObjectRegion`.
>
> What should be my next step?

Can we see any improvements in CPU counters (Linux)?

  # Detailed CPU counter statistics (includes extras) for the specified command:
  perf stat -d command

Repository:
  rG LLVM Github Monorepo

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https://reviews.llvm.org/D86295