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Rustc does not free memory before calling the linker #66643

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Rustc does not free memory before calling the linker#66643
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A-codegenArea: Code generationA-linkageArea: linking into static, shared libraries and binariesC-bugCategory: This is a bug.I-compilememIssue: Problems and improvements with respect to memory usage during compilation.T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.

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@cjgillot
cjgillot
opened on Nov 22, 2019

Hello,

While compiling rust-analyzer, I witnessed elevated memory usage by rustc while the linker is active. In that case, more that 600 MB is allocated by the compiler. In cargo-parallelized build, this is a lot.

rustc version: 1.40.0-nightly (5da4b4d47 2019-10-28)

Thank you for investigating this.

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  1. jonas-schievink
    added
    A-codegenArea: Code generation
    A-linkageArea: linking into static, shared libraries and binaries
    C-bugCategory: This is a bug.
    I-compilememIssue: Problems and improvements with respect to memory usage during compilation.
    T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.
    on Nov 22, 2019

  2. matprec commented on Feb 11, 2020

    @matprec
    matprec
    on Feb 11, 2020
    Contributor

    I think this can closed now that #66707 is merged.

  3. jonas-schievink
    closed this as completedon Feb 11, 2020
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    A-codegenArea: Code generationA-linkageArea: linking into static, shared libraries and binariesC-bugCategory: This is a bug.I-compilememIssue: Problems and improvements with respect to memory usage during compilation.T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.

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