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Rustc does not free memory before calling the linker #66643

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cjgillot opened this issue Nov 22, 2019 · 1 comment
Closed

Rustc does not free memory before calling the linker #66643

cjgillot opened this issue Nov 22, 2019 · 1 comment
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A-codegen Area: Code generation A-linkage Area: linking into static, shared libraries and binaries C-bug Category: This is a bug. I-compilemem Issue: Problems and improvements with respect to memory usage during compilation. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.

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@cjgillot
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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.
@jonas-schievink jonas-schievink added A-codegen Area: Code generation A-linkage Area: linking into static, shared libraries and binaries C-bug Category: This is a bug. I-compilemem Issue: Problems and improvements with respect to memory usage during compilation. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Nov 22, 2019
@matprec
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matprec commented Feb 11, 2020

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

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A-codegen Area: Code generation A-linkage Area: linking into static, shared libraries and binaries C-bug Category: This is a bug. I-compilemem Issue: Problems and improvements with respect to memory usage during compilation. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
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@jonas-schievink @cjgillot @matprec