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This commit removes "deno_core::RuntimeOptions::extensions_with_js".
Now it's embedders' responsibility to properly register extensions
that will not contains JavaScript sources when running from an existing
snapshot.
Prerequisite for https://github.com/denoland/deno/pull/18080
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rust-toolchain.toml (#18104)
It seems like `dtolnay/rust-toolchain` does not want to support
rust-toolchain.toml unfortunately and we had thought it did.
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This commit partially reverts changes from
https://github.com/denoland/deno/pull/18095.
Turns out I made a mistake that became apparent when working
on removing "RuntimeOptions::extensions_with_js" in a follow up.
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verbosity (#18100)
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This commit splits "<ext_name>::init" functions into "init_ops" and
"init_ops_and_esm". That way we don't have to construct list of
ESM sources on each startup if we're running with a snapshot.
In a follow up commit "deno_core" will be changed to not have a split
between "extensions" and "extensions_with_js" - it will be embedders'
responsibility to pass appropriately configured extensions.
Prerequisite for https://github.com/denoland/deno/pull/18080
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Prerequisite for https://github.com/denoland/deno/pull/18080
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This commit changes "ModuleMap" initialization to over-allocate by 16
for vectors storing module information and module V8 handles. In 99%
cases there's gonna be at least one additional module loaded, so it's
very wasteful to have to reallocate when the module is executed (IIRC
Rust will double the size of the vector) and move all of the elements.
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This commit changes how "unload" event is handled - before
this commit an event listener was added unconditionally in
the runtime bootstrapping function, which for some reason was
very expensive (0.3ms). Instead of adding an event listener,
a check was added to "dispatchEvent" function that performs
the same action (so it's only called if there's an event dispatched).
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raw mode (#17983)
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This improves peer dependency resolution yet again. We did not handle
scenarios like the following:
```
// a -> b -> c -> d -> c -> b (peer)
```
...which would maybe work ok the first time its run in some cases, but
then lead to a lockfile that would error on load.
This now keeps track of circular dependencies and updates nodes
accordingly. That said, there is still a lurking bug in this code
somewhere that I've added a comment for (there is a mitigation on the
tail end that seems to work well). The current state is much better than
before and I can look into it later. I think it's something small that's
incorrect.
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```
Benchmark 1: deno run -A ../empty.js
Time (mean ± σ): 20.5 ms ± 0.5 ms [User: 13.4 ms, System: 5.1 ms]
Range (min … max): 19.8 ms … 24.0 ms 119 runs
Benchmark 2: target/release/deno run -A ../empty.js
Time (mean ± σ): 18.8 ms ± 0.3 ms [User: 13.0 ms, System: 4.9 ms]
Range (min … max): 18.3 ms … 19.9 ms 129 runs
```
---------
Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
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This reverts commit d12b039e1ad601622c6135e13f00fd14cb09bce1.
It was landed as an experiment and it confirms much faster startup
if not compression is applied.
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folder at a time (#18058)
This is implemented in such a way that it should still allow processes
to go through when a file lock wasn't properly cleaned up and the OS
hasn't released it yet (but with a 200ms-ish delay).
Closes #18039
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for snapshotted modules (#18041)
This commit renames "deno_core::InternalModuleLoader" to
"ExtModuleLoader" and changes the specifiers used by the
modules loaded from this loader to "ext:".
"internal:" scheme was really ambiguous and it's more characters than
"ext:", which should result in slightly smaller snapshot size.
Closes https://github.com/denoland/deno/issues/18020
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Since we are snapshotting extension source at build time, there's no
need to define list of sources for the extension at runtime.
This commit changes "deno_node" extension by removing "init_polyfill"
function in favor of "init_polyfill_ops_and_esm()" and "init_polyfill_ops()".
The former is used during snapshot and when "deno_runtime" is compiled
with "dont_create_runtime_snapshot" cargo feature flag. The latter is used
when running a worker from an existing snapshot.
This is a start of a bigger refactor to all extensions - thanks to this
change, we don't have to iterate over all defined source files for extension at
runtime, and because of that we don't have to create a filepath for each of the
source files. It's not a big deal, but we are iterating over 300 files on each start,
and concatenating 3 strings before creating a "PathBuf" for ~200 of them.
This is already visible on the startup flamegraphs and should be avoided.
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No need to do it on startup every time.
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There's no point for this API to expect result. If something fails it should
result in a panic during build time to signal to embedder that setup is
wrong.
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Add space between period and "Any" in `--v8-flags` help text.
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This commit moves some of the code from "99_main.js" to
be executed during the snapshot time instead of on each
worker bootstrap. These should minimally help with startup
time benchmark.
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This commit disables snapshot compression for the CLI snapshot.]
Decompressing the snapshot on startup takes ~2.5ms.
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This commit factors out APIs related to file system from "runtime/"
to a separate "deno_fs" extension crate.
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Fixes #18056
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Removes duplicate copyright disclaimer from `/lockfile/lib.rs`
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This is to allow making assertions on stdout and stderr separately.
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```
> deno run -A ../test.mjs
cpu: unknown
runtime: deno 1.31.1 (aarch64-apple-darwin)
benchmark time (avg) (min … max) p75 p99 p995
------------------------------------------------- -----------------------------
2.22 µs/iter (2.2 µs … 2.28 µs) 2.22 µs 2.28 µs 2.28 µs
> target/release/deno run -A test.mjs
cpu: unknown
runtime: deno 1.31.1 (aarch64-apple-darwin)
benchmark time (avg) (min … max) p75 p99 p995
------------------------------------------------- -----------------------------
864.9 ns/iter (825.05 ns … 1.22 µs) 864.93 ns 1.22 µs 1.22 µs
```
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This API is required by several extensions like "ext/node", "ext/ffi"
and also FS APIs that we want to move to a separate crate. Because
of that "pathFromURL" API was moved to "deno_web" extension so
other extension crates can rely on it.
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This commit changes "InternalModuleLoader" from "deno_core" to
store a list of used modules during snapshotting. If a module was not
used during snapshotting "InternalModuleLoader" will panic in its "Drop"
handler signaling to the embedder that they made a mistake somewhere.
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We use information about build in several extension crates like
"ext/node" or "runtime/". In an effort to move "fs" APIs to a separate
crate it is a prerequisite to have this information available outside
of the "runtime/" crate.
This commit moves definition of "build" object to "Deno.core" that is
later forwarded to "Deno.build".
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Closes #18029
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This commit merges "runtime/js/40_spawn.js" into
"runtime/js/40_process.js", and "runtime::ops::spawn"
into "runtime::ops::process".
It makes little sense to have them separated given that we want to
factor out these APIs into a separate extension crate.
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https://github.com/denoland/deno/pull/18023#discussion_r1125611859
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Join two independent ops into one. A fast impl of one + a slow callback
of another. Here's an example showing optimized paths for latin-1 via
fast call and the next-best fallback using V8 apis.
```rust
#[op(v8)]
fn op_encoding_encode_into_fallback(
scope: &mut v8::HandleScope,
input: serde_v8::Value,
// ...
#[op(fast, slow = op_encoding_encode_into_fallback)]
fn op_encoding_encode_into(
input: Cow<'_, str>,
// ...
```
Benchmark results of the fallback path:
```
time target/release/deno run -A --unstable ./cli/tests/testdata/benches/text_encoder_into_perf.js
________________________________________________________
Executed in 70.90 millis fish external
usr time 57.76 millis 0.23 millis 57.53 millis
sys time 17.02 millis 1.28 millis 15.74 millis
target/release/deno_main run -A --unstable ./cli/tests/testdata/benches/text_encoder_into_perf.js
________________________________________________________
Executed in 154.00 millis fish external
usr time 67.14 millis 0.26 millis 66.88 millis
sys time 38.82 millis 1.47 millis 37.35 millis
```
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(#18018)
JavaScript APIs from "runtime/js/40_files.js" combined abstractions
for stdio streams ("Stdout", "Stderr", "Stdin") and file system file
("File", "FsFile"). APIs from "runtime/js/40_read_file.js" and
"runtime/js/40_write_file.js" were implemented using ops from
"runtime/ops/fs.rs".
This file was removed and relevant APIs were moved to "deno_io/12_io.js"
and "runtime/js/30_fs.js".
This work is meant to enable factoring out "deno_fs" crate.
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This file was not used anywhere - even though it exposed an unstable
"Deno.DiagnosticCategory" API. Seems like a left over from when we
had "Deno.emit" API.
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(#18019)
This commit changes "include_js_files!" macro from "deno_core"
in a way that "dir" option doesn't cause specifiers to be rewritten
to include it.
Example:
```
include_js_files! {
dir "js",
"hello.js",
}
```
The above definition required embedders to use:
`import ... from "internal:<ext_name>/js/hello.js"`.
But with this change, the "js" directory in which the files are stored
is an implementation detail, which for embedders results in:
`import ... from "internal:<ext_name>/hello.js"`.
The directory the files are stored in, is an implementation detail and
in some cases might result in a significant size difference for the
snapshot. As an example, in "deno_node" extension, we store the
source code in "polyfills" directory; which resulted in each specifier
to look like "internal:deno_node/polyfills/<module_name>", but with
this change it's "internal:deno_node/<module_name>".
Given that "deno_node" has over 100 files, many of them having
several import specifiers to the same extension, this change removes
10 characters from each import specifier.
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