upstream/mercurial-mirror Files · rust/hgcli/build.rs

dirstate-tree: Use HashMap instead of BTreeMap...

dirstate-tree: Use HashMap instead of BTreeMap BTreeMap has the advantage of its "natural" iteration order being the one we need in the status algorithm. With HashMap however, iteration order is undefined so we need to allocate a Vec and sort it explicitly. Unfortunately many BTreeMap operations are slower than in HashMap, and skipping that extra allocation and sort is not enough to compensate. Switching to HashMap + sort makes `hg status` 17% faster in one test case, as measure with hyperfine: ``` Benchmark : ../hg2/hg status -R $REPO --config=experimental.dirstate-tree.in-memory=1 Time (mean ± σ): 765.0 ms ± 8.8 ms [User: 1.352 s, System: 0.747 s] Range (min … max): 751.8 ms … 778.7 ms 10 runs Benchmark : ./hg status -R $REPO --config=experimental.dirstate-tree.in-memory=1 Time (mean ± σ): 651.8 ms ± 9.9 ms [User: 1.251 s, System: 0.799 s] Range (min … max): 642.2 ms … 671.8 ms 10 runs Summary './hg status -R $REPO --config=experimental.dirstate-tree.in-memory=1' ran 1.17 ± 0.02 times faster than '../hg2/hg status -R $REPO --config=experimental.dirstate-tree.in-memory=1' ``` * ./hg is this revision * ../hg2/hg is its parent * $REPO is an old snapshot of mozilla-central Differential Revision: https://phab.mercurial-scm.org/D10553

Martin von Zweigbergk - - Load All Authors

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             build.rs
        
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                | application/rls-services+xml
            
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        Gregory Szorc
    
hgcli: add stub PyOxidizer project...

              r45128
            
      // This Source Code Form is subject to the terms of the Mozilla Public

      // License, v. 2.0. If a copy of the MPL was not distributed with this

      // file, You can obtain one at https://mozilla.org/MPL/2.0/.

      /*! Build script to integrate PyOxidizer. */

      fn main() {

        Martin von Zweigbergk
    
rust: move rustfmt.toml to repo root so it can be used by `hg fix`...

              r46195
            
          if let Ok(config_rs) =

              std::env::var("DEP_PYTHONXY_DEFAULT_PYTHON_CONFIG_RS")

          {

        Gregory Szorc
    
hgcli: add stub PyOxidizer project...

              r45128
            
              println!(

                  "cargo:rustc-env=PYOXIDIZER_DEFAULT_PYTHON_CONFIG_RS={}",

                  config_rs

              );

          } else {

              panic!("unable to find build artifacts generated by pyembed crate");

          }

      }

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Gregory Szorc hgcli: add stub PyOxidizer project...	r45128	// This Source Code Form is subject to the terms of the Mozilla Public
		// License, v. 2.0. If a copy of the MPL was not distributed with this
		// file, You can obtain one at https://mozilla.org/MPL/2.0/.

		/! Build script to integrate PyOxidizer. /

		fn main() {
Martin von Zweigbergk rust: move rustfmt.toml to repo root so it can be used by `hg fix`...	r46195	if let Ok(config_rs) =
		std::env::var("DEP_PYTHONXY_DEFAULT_PYTHON_CONFIG_RS")
		{
Gregory Szorc hgcli: add stub PyOxidizer project...	r45128	println!(
		"cargo:rustc-env=PYOXIDIZER_DEFAULT_PYTHON_CONFIG_RS={}",
		config_rs
		);
		} else {
		panic!("unable to find build artifacts generated by pyembed crate");
		}
		}