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annotate rust/hg-core/src/dirstate.rs @ 48973:e2f8ed37201c stable

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rust-status: cap the number of concurrent threads to 16 During benchmarking it was determined that the use of more threads is very advantageous... until we use more than 16. This is most likely due to some resource contention (thrashing, etc.). Until we have time to figure out and fix the underlying cause, let's just cap at 16 threads. Differential Revision: https://phab.mercurial-scm.org/D12384
author Rapha?l Gom?s <rgomes@octobus.net>
date Fri, 18 Mar 2022 16:15:44 +0100
parents bf8837e3d7ce
children b07465adbcc8
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1 // dirstate module
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2 //
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3 // Copyright 2019 Raphaël Gomès <rgomes@octobus.net>
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4 //
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5 // This software may be used and distributed according to the terms of the
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6 // GNU General Public License version 2 or any later version.
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7
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8 use crate::dirstate_tree::on_disk::DirstateV2ParseError;
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9 use crate::revlog::node::NULL_NODE;
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10 use crate::revlog::Node;
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11 use crate::utils::hg_path::HgPath;
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12 use bytes_cast::BytesCast;
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13
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14 pub mod dirs_multiset;
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15 pub mod entry;
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16 pub mod parsers;
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17 pub mod status;
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18
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19 pub use self::entry::*;
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20
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21 #[derive(Debug, PartialEq, Copy, Clone, BytesCast)]
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22 #[repr(C)]
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23 pub struct DirstateParents {
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24 pub p1: Node,
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25 pub p2: Node,
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26 }
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27
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28 impl DirstateParents {
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29 pub const NULL: Self = Self {
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30 p1: NULL_NODE,
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31 p2: NULL_NODE,
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32 };
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33 }
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34
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35 pub type StateMapIter<'a> = Box<
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36 dyn Iterator<
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37 Item = Result<(&'a HgPath, DirstateEntry), DirstateV2ParseError>,
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38 > + Send
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39 + 'a,
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40 >;
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41
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42 pub type CopyMapIter<'a> = Box<
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43 dyn Iterator<Item = Result<(&'a HgPath, &'a HgPath), DirstateV2ParseError>>
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44 + Send
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45 + 'a,
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46 >;