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

tags-fnode-cache: do not repeatedly open the filelog in a loop...

tags-fnode-cache: do not repeatedly open the filelog in a loop While getting multiple hgtagsfnodecache entries, we were opening (and closing) the `.hgtags` filelog for each iteration. The meant repeatedly reading and parsing the version same information from disk. A quite costly operation. We no longer do this, leading to a sizable improvement in `hg debugupdatecache` run for an already warm repositories. ### data-env-vars.name = mercurial-2018-08-01-zstd-sparse-revlog # benchmark.name = debug-update-cache # benchmark.variants.pre-state = warm before: 1.711778 seconds after: 0.213229 seconds (-87.54%) # data-env-vars.name = pypy-2018-08-01-zstd-sparse-revlog before: 4.010817 seconds after: 0.381141 seconds (-90.50%) # data-env-vars.name = netbeans-2018-08-01-zstd-sparse-revlog before: 13.574141 after: 1.023007 seconds (-92.46%) # data-env-vars.name = mozilla-central-2018-08-01-zstd-sparse-revlog before: 18.884656 after: 1.465735 seconds (-92.24%) # data-env-vars.name = mozilla-try-2019-02-18-zstd-sparse-revlog before: 88.924823 after: 6.511771 seconds (-92.68%)

Martin von Zweigbergk - - Load All Authors

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                r50474:15a89b72

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             build.rs
        
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                | application/rls-services+xml
            
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             / rust / hgcli / build.rs
          
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      // 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() {

          if let Ok(config_rs) =

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

          {

              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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				// 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() {
				if let Ok(config_rs) =
				std::env::var("DEP_PYTHONXY_DEFAULT_PYTHON_CONFIG_RS")
				{
				println!(
				"cargo:rustc-env=PYOXIDIZER_DEFAULT_PYTHON_CONFIG_RS={}",
				config_rs
				);
				} else {
				panic!("unable to find build artifacts generated by pyembed crate");
				}
				}