Skip to content

Latest commit

 

History

History
19 lines (12 loc) · 1.28 KB

README.md

File metadata and controls

19 lines (12 loc) · 1.28 KB
Raw

hvm-compare-perf

Compare benchmarks of hvm-core versions.

How it works.

The directory .bench-dir includes a modified clone of the hvm-core repo. The hvm-compare-perf programs checks out different commits, which must be listed in commits.cfg, and times all programs in each commit.

Important hashes

  • Modern: 09a3791cd8194fef28be95305835d4851eb0a854
  • Post ptr-refactor: 9bdbdcbe0816345545a3adf00704f9f4f01dcfe7
  • Pre ptr-refactor: c610b490fb071b7c9891b674bf399addaff3a580
  • Before dup-ref: 1a1e56327479a2681b1cbee2e0fc121b4c19cc14
  • Before compiler: fb5a2a98d4ec19e4b4a4898a8124fa4a76f87ee1

Unfortunately, the different versions of hvm-core are incompatible. For example, they might use different amounts of RAM on startup, or they might use different syntaxes for binary AND and OR. To patch this, I made temporary detached commits in the clone of the repo which make the different versions more compatible. This is why the hashes in commits.cfg are not actually the "important hashes", but rather childless commits which have those commits as their parent.

To do that, simply git checkout in .bench-dir to the commit you're testing, do your modifications, then git add and git commit. Copy the new hash and edit commits.cfg to put it in place of the original commit.