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perf: disable TSC snapshot compression (#18333)

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This commit disables compression of the TSC snapshot.
The compression only decreased the size of snapshot by 0.5Mb
and it took about 40s during release build to compress.

With recent gains in TS 5.0 upgrade in terms of size and performance
it makes sense to remove this compression.
This commit is contained in:
Bartek Iwańczuk 2023-03-21 18:53:46 +01:00 committed by GitHub
parent 2ef8269fdb
commit 0d27de943a
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 3 additions and 94 deletions
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43
Cargo.lock generated
View file

@ -400,9 +400,6 @@ name = "cc"
version = "1.0.79"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "50d30906286121d95be3d479533b458f87493b30a4b5f79a607db8f5d11aa91f"
dependencies = [
"jobserver",
]
[[package]]
name = "cfg-if"
@ -786,7 +783,6 @@ dependencies = [
"walkdir",
"winapi",
"winres",
"zstd",
]
[[package]]
@ -2342,15 +2338,6 @@ version = "1.0.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "453ad9f582a441959e5f0d088b02ce04cfe8d51a8eaf077f12ac6d3e94164ca6"
[[package]]
name = "jobserver"
version = "0.1.26"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "936cfd212a0155903bcbc060e316fb6cc7cbf2e1907329391ebadc1fe0ce77c2"
dependencies = [
"libc",
]
[[package]]
name = "js-sys"
version = "0.3.61"
@ -5648,33 +5635,3 @@ dependencies = [
"syn 1.0.109",
"synstructure",
]
[[package]]
name = "zstd"
version = "0.11.2+zstd.1.5.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "20cc960326ece64f010d2d2107537f26dc589a6573a316bd5b1dba685fa5fde4"
dependencies = [
"zstd-safe",
]
[[package]]
name = "zstd-safe"
version = "5.0.2+zstd.1.5.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1d2a5585e04f9eea4b2a3d1eca508c4dee9592a89ef6f450c11719da0726f4db"
dependencies = [
"libc",
"zstd-sys",
]
[[package]]
name = "zstd-sys"
version = "2.0.7+zstd.1.5.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "94509c3ba2fe55294d752b79842c530ccfab760192521df74a081a78d2b3c7f5"
dependencies = [
"cc",
"libc",
"pkg-config",
]

9
Cargo.toml
View file

@ -128,7 +128,6 @@ tokio-util = "0.7.4"
tower-lsp = { version = "=0.17.0", features = ["proposed"] }
url = { version = "2.3.1", features = ["serde", "expose_internals"] }
uuid = { version = "1.3.0", features = ["v4"] }
zstd = "=0.11.2"
# crypto
rsa = { version = "0.7.0", default-features = false, features = ["std", "pem"] }
@ -229,10 +228,6 @@ opt-level = 3
opt-level = 3
[profile.bench.package.tokio]
opt-level = 3
[profile.bench.package.zstd]
opt-level = 3
[profile.bench.package.zstd-sys]
opt-level = 3
[profile.bench.package.base64-simd]
opt-level = 3
@ -301,9 +296,5 @@ opt-level = 3
opt-level = 3
[profile.release.package.tokio]
opt-level = 3
[profile.release.package.zstd]
opt-level = 3
[profile.release.package.zstd-sys]
opt-level = 3
[profile.release.package.base64-simd]
opt-level = 3

2
cli/Cargo.toml
View file

@ -32,7 +32,6 @@ deno_core = { workspace = true, features = ["include_js_files_for_snapshotting"]
regex.workspace = true
serde.workspace = true
serde_json.workspace = true
zstd.workspace = true
glibc_version = "0.1.2"
[target.'cfg(windows)'.build-dependencies]
@ -106,7 +105,6 @@ twox-hash = "=1.6.3"
typed-arena = "=2.0.1"
uuid = { workspace = true, features = ["serde"] }
walkdir = "=2.3.2"
zstd.workspace = true
[target.'cfg(windows)'.dependencies]
fwdansi.workspace = true

15
cli/build.rs
View file

@ -270,22 +270,7 @@ mod ts {
build_libs,
path_dts,
)],
// NOTE(bartlomieju): Compressing the TSC snapshot in debug build took
// ~45s on M1 MacBook Pro; without compression it took ~1s.
// Thus we're not not using compressed snapshot, trading off
// a lot of build time for some startup time in debug build.
#[cfg(debug_assertions)]
compression_cb: None,
#[cfg(not(debug_assertions))]
compression_cb: Some(Box::new(|vec, snapshot_slice| {
eprintln!("Compressing TSC snapshot...");
vec.extend_from_slice(
&zstd::bulk::compress(snapshot_slice, 22)
.expect("snapshot compression failed"),
);
})),
snapshot_module_load_cb: None,
});
}

28
cli/tsc/mod.rs
View file

@ -52,30 +52,8 @@ pub use self::diagnostics::DiagnosticMessageChain;
pub use self::diagnostics::Diagnostics;
pub use self::diagnostics::Position;
pub static COMPILER_SNAPSHOT: Lazy<Box<[u8]>> = Lazy::new(
#[cold]
#[inline(never)]
|| {
static COMPRESSED_COMPILER_SNAPSHOT: &[u8] =
include_bytes!(concat!(env!("OUT_DIR"), "/COMPILER_SNAPSHOT.bin"));
// NOTE(bartlomieju): Compressing the TSC snapshot in debug build took
// ~45s on M1 MacBook Pro; without compression it took ~1s.
// Thus we're not not using compressed snapshot, trading off
// a lot of build time for some startup time in debug build.
#[cfg(debug_assertions)]
return COMPRESSED_COMPILER_SNAPSHOT.to_vec().into_boxed_slice();
#[cfg(not(debug_assertions))]
zstd::bulk::decompress(
&COMPRESSED_COMPILER_SNAPSHOT[4..],
u32::from_le_bytes(COMPRESSED_COMPILER_SNAPSHOT[0..4].try_into().unwrap())
as usize,
)
.unwrap()
.into_boxed_slice()
},
);
pub static COMPILER_SNAPSHOT: &[u8] =
include_bytes!(concat!(env!("OUT_DIR"), "/COMPILER_SNAPSHOT.bin"));
pub fn get_types_declaration_file_text(unstable: bool) -> String {
let mut assets = get_asset_texts_from_new_runtime()
@ -137,7 +115,7 @@ fn get_asset_texts_from_new_runtime() -> Result<Vec<AssetText>, AnyError> {
}
pub fn compiler_snapshot() -> Snapshot {
Snapshot::Static(&COMPILER_SNAPSHOT)
Snapshot::Static(COMPILER_SNAPSHOT)
}
macro_rules! inc {