Skip to content

Fix metadata stats. - #97384

Merged
bors merged 1 commit into
rust-lang:masterfrom
nnethercote:fix-metadata-stats
May 25, 2022
Merged

Fix metadata stats.#97384
bors merged 1 commit into
rust-lang:masterfrom
nnethercote:fix-metadata-stats

Conversation

@nnethercote

Copy link
Copy Markdown
Contributor

This commit:

  • Counts some things that weren't being counted previously, and adds
    an assertion that ensure everything is counted.
  • Reorders things so the eprintlns order matches the code order.
  • Adds percentages, and makes clear that the zero bytes count is orthogonal to
    the other measurements.

Example of the new output:

55463779 metadata bytes, of which 18054531 bytes (32.6%) are zero
preamble: 30 bytes ( 0.0%)
dep: 0 bytes ( 0.0%)
lib feature: 17458 bytes ( 0.0%)
lang item: 337 bytes ( 0.0%)
diagnostic item: 1788 bytes ( 0.0%)
native lib: 0 bytes ( 0.0%)
foreign modules: 5113 bytes ( 0.0%)
def-path table: 720180 bytes ( 1.3%)
traits: 359 bytes ( 0.0%)
impls: 64624 bytes ( 0.1%)
incoherent_impls: 130 bytes ( 0.0%)
mir: 16137354 bytes (29.1%)
item: 23773099 bytes (42.9%)
interpret_alloc_index: 599 bytes ( 0.0%)
proc-macro-data: 0 bytes ( 0.0%)
tables: 10081135 bytes (18.2%)
debugger visualizers: 0 bytes ( 0.0%)
exported symbols: 5666 bytes ( 0.0%)
hygiene: 1539390 bytes ( 2.8%)
def-path hashes: 2752564 bytes ( 5.0%)
source_map: 363540 bytes ( 0.7%)
final: 413 bytes ( 0.0%)

r? @bjorn3

This commit:
- Counts some things that weren't being counted previously, and adds
an assertion that ensure everything is counted.
- Reorders things so the `eprintln`s order matches the code order.
- Adds percentages, and makes clear that the zero bytes count is orthogonal to
the other measurements.
Example of the new output:
```
55463779 metadata bytes, of which 18054531 bytes (32.6%) are zero
preamble: 30 bytes ( 0.0%)
dep: 0 bytes ( 0.0%)
lib feature: 17458 bytes ( 0.0%)
lang item: 337 bytes ( 0.0%)
diagnostic item: 1788 bytes ( 0.0%)
native lib: 0 bytes ( 0.0%)
foreign modules: 5113 bytes ( 0.0%)
def-path table: 720180 bytes ( 1.3%)
traits: 359 bytes ( 0.0%)
impls: 64624 bytes ( 0.1%)
incoherent_impls: 130 bytes ( 0.0%)
mir: 16137354 bytes (29.1%)
item: 23773099 bytes (42.9%)
interpret_alloc_index: 599 bytes ( 0.0%)
proc-macro-data: 0 bytes ( 0.0%)
tables: 10081135 bytes (18.2%)
debugger visualizers: 0 bytes ( 0.0%)
exported symbols: 5666 bytes ( 0.0%)
hygiene: 1539390 bytes ( 2.8%)
def-path hashes: 2752564 bytes ( 5.0%)
source_map: 363540 bytes ( 0.7%)
final: 413 bytes ( 0.0%)
```
@rustbotrustbot added the T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. label May 25, 2022
@rust-highfiverust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label May 25, 2022
@bjorn3

Copy link
Copy Markdown
Member

Nice!

@bors r+

@bors

bors commented May 25, 2022

Copy link
Copy Markdown
Collaborator

📌 Commit 9a926e5 has been approved by bjorn3

@borsbors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels May 25, 2022
@nnethercote

Copy link
Copy Markdown
ContributorAuthor

@bors rollup=always

@Dylan-DPCDylan-DPC mentioned this pull request May 25, 2022
bors added a commit to rust-lang-ci/rust that referenced this pull request May 25, 2022
Rollup of 5 pull requests
Successful merges:
- rust-lang#95953 (Modify MIR building to drop repeat expressions with length zero)
- rust-lang#96913 (RFC3239: Implement `cfg(target)` - Part 2)
- rust-lang#97233 ([RFC 2011] Library code)
- rust-lang#97370 (Minor improvement on else-no-if diagnostic)
- rust-lang#97384 (Fix metadata stats.)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
@bors
bors merged commit 3c11bf3 into rust-lang:masterMay 25, 2022
@rustbotrustbot added this to the 1.63.0 milestone May 25, 2022
@nnethercote
nnethercote deleted the fix-metadata-stats branch May 25, 2022 23:17
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Sep 21, 2022
…bjorn3
Improve `-Zmeta-stats` some more
A follow-up to rust-lang#97384.
r? `@bjorn3`
Dylan-DPC added a commit to Dylan-DPC/rust that referenced this pull request Sep 21, 2022
…bjorn3
Improve `-Zmeta-stats` some more
A follow-up to rust-lang#97384.
r? ``@bjorn3``
Dylan-DPC added a commit to Dylan-DPC/rust that referenced this pull request Sep 21, 2022
…bjorn3
Improve `-Zmeta-stats` some more
A follow-up to rust-lang#97384.
r? ```@bjorn3```
Sign up for freeto join this conversation on GitHub. Already have an account? Sign in to comment

Labels

S-waiting-on-borsStatus: Waiting on bors to run and complete tests. Bors will change the label on completion.T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.

Projects

None yet

Development

Successfully merging this pull request may close these issues.

5 participants

@nnethercote@bjorn3@bors@rust-highfive@rustbot