mirror of
https://github.com/martinvonz/jj.git
synced 2024-09-21 18:58:03 +03:00
84f807d222
This improves `jj status` time by a factor of ~2x on my machine (M1 Macbook Pro 2021 16-inch, uses an SSD):
```sh
$ hyperfine --parameter-list hash before,after --parameter-list repo nixpkgs,gecko-dev --setup 'git checkout {hash} && cargo build --profile release-with-debug' --warmup 3 './target/release-with-debug/jj -R ../{repo} st'
Benchmark 1: ./target/release-with-debug/jj -R ../nixpkgs st (hash = before)
Time (mean ± σ): 1.640 s ± 0.019 s [User: 0.580 s, System: 1.044 s]
Range (min … max): 1.621 s … 1.673 s 10 runs
Benchmark 2: ./target/release-with-debug/jj -R ../nixpkgs st (hash = after)
Time (mean ± σ): 760.0 ms ± 5.4 ms [User: 812.9 ms, System: 2214.6 ms]
Range (min … max): 751.4 ms … 768.7 ms 10 runs
Benchmark 3: ./target/release-with-debug/jj -R ../gecko-dev st (hash = before)
Time (mean ± σ): 11.403 s ± 0.648 s [User: 4.546 s, System: 5.932 s]
Range (min … max): 10.553 s … 12.718 s 10 runs
Benchmark 4: ./target/release-with-debug/jj -R ../gecko-dev st (hash = after)
Time (mean ± σ): 5.974 s ± 0.028 s [User: 5.387 s, System: 11.959 s]
Range (min … max): 5.937 s … 6.024 s 10 runs
$ hyperfine --parameter-list repo nixpkgs,gecko-dev --warmup 3 'git -C ../{repo} status'
Benchmark 1: git -C ../nixpkgs status
Time (mean ± σ): 865.4 ms ± 8.4 ms [User: 119.4 ms, System: 1401.2 ms]
Range (min … max): 852.8 ms … 879.1 ms 10 runs
Benchmark 2: git -C ../gecko-dev status
Time (mean ± σ): 2.892 s ± 0.029 s [User: 0.458 s, System: 14.244 s]
Range (min … max): 2.837 s … 2.934 s 10 runs
```
Conclusions:
- ~2x improvement from previous `jj status` time.
- Slightly faster than Git on nixpkgs.
- Still 2x slower than Git on gecko-dev, not sure why.
For reference, Git's default number of threads is defined in the `online_cpus` function: ee48e70a82/thread-utils.c (L21-L66). We are using whatever the Rayon default is.
77 lines
1.8 KiB
TOML
77 lines
1.8 KiB
TOML
[package]
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name = "jj-lib"
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version = "0.8.0"
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authors = ["Martin von Zweigbergk <martinvonz@google.com>"]
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edition = "2021"
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rust-version = "1.71"
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license = "Apache-2.0"
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description = "Library for Jujutsu (an experimental VCS)"
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homepage = "https://github.com/martinvonz/jj"
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repository = "https://github.com/martinvonz/jj"
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documentation = "https://docs.rs/jj-lib"
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readme = "../README.md"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[[bench]]
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name = "diff_bench"
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harness = false
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[build-dependencies]
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version_check = "0.9.4"
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[dependencies]
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backoff = "0.4.0"
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blake2 = "0.10.6"
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byteorder = "1.4.3"
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bytes = "1.4.0"
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chrono = { version = "0.4.26", default-features = false, features = [
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"std",
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"clock",
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] }
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config = { version = "0.13.3", default-features = false, features = ["toml"] }
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digest = "0.10.7"
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git2 = "0.17.2"
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hex = "0.4.3"
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itertools = "0.11.0"
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maplit = "1.0.2"
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once_cell = "1.18.0"
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pest = "2.7.2"
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pest_derive = "2.7.2"
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prost = "0.11.9"
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rand = "0.8.5"
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rand_chacha = "0.3.1"
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rayon = "1.7.0"
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regex = "1.9.1"
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serde_json = "1.0.104"
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smallvec = { version = "1.11.0", features = [
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"const_generics",
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"const_new",
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"union",
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] }
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strsim = "0.10.0"
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tempfile = "3.7.0"
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thiserror = "1.0.44"
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tokio = { version = "1.29.1", optional = true }
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tracing = "0.1.37"
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watchman_client = { version = "0.8.0", optional = true }
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whoami = "1.4.1"
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zstd = "0.12.4"
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[target.'cfg(unix)'.dependencies]
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rustix = { version = "0.38.6", features = ["fs"] }
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[dev-dependencies]
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assert_matches = "1.5.0"
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criterion = "0.5.1"
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esl01-renderdag = "0.3.0"
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insta = "1.31.0"
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num_cpus = "1.16.0"
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test-case = "3.1.0"
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testutils = { path = "testutils" }
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[features]
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default = []
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vendored-openssl = ["git2/vendored-openssl"]
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watchman = ["dep:tokio", "dep:watchman_client"]
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