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Author SHA1 Message Date
Aapo Alasuutari
9d6584c16f
perf(ext/node): Optimise Buffer string operations (#20158) 
Extracted from https://github.com/denoland/deno/pull/17815

Optimise Buffer's string operations, most significantly when dealing
with ASCII and UTF-16. Base64 and HEX encodings are affected to much
lesser degrees.

## Performance

### String length 15
With very small strings we're at break-even or sometimes even lose a tad
bit of performance from creating a `DataView` that ends up not paying
for itself.

**This PR:**
```
benchmark                                                     time (avg)        iter/s             (min … max)       p75       p99      p995
-------------------------------------------------------------------------------------------------------------- -----------------------------
Buffer.from ascii string                                       1.15 µs/iter     871,388.6   (728.78 ns … 1.56 µs)   1.23 µs   1.56 µs   1.56 µs
Buffer.from base64 string                                      1.63 µs/iter     612,790.9     (1.31 µs … 1.96 µs)   1.77 µs   1.96 µs   1.96 µs
Buffer.from utf16 string                                       1.41 µs/iter     707,396.3   (915.24 ns … 1.93 µs)   1.61 µs   1.93 µs   1.93 µs
Buffer.from hex string                                         1.87 µs/iter     535,357.9     (1.56 µs … 2.19 µs)      2 µs   2.19 µs   2.19 µs
Buffer.toString ascii string                                 154.58 ns/iter   6,469,162.8    (149.69 ns … 198 ns) 154.51 ns 182.89 ns 191.91 ns
Buffer.toString base64 string                                161.65 ns/iter   6,186,189.6 (150.91 ns … 181.15 ns) 165.18 ns 171.87 ns 174.94 ns
Buffer.toString utf16 string                                 292.74 ns/iter   3,415,959.8 (285.43 ns … 312.47 ns) 295.25 ns 310.47 ns 312.47 ns
Buffer.toString hex string                                    89.61 ns/iter  11,159,315.6  (81.09 ns … 123.77 ns)  91.09 ns 113.62 ns 119.28 ns
```

**Main:**
```
benchmark                                                     time (avg)        iter/s             (min … max)       p75       p99      p995
-------------------------------------------------------------------------------------------------------------- -----------------------------
Buffer.from ascii string                                       1.26 µs/iter     794,875.8     (1.07 µs … 1.46 µs)   1.31 µs   1.46 µs   1.46 µs
Buffer.from base64 string                                      1.65 µs/iter     607,853.3     (1.38 µs … 2.01 µs)   1.69 µs   2.01 µs   2.01 µs
Buffer.from utf16 string                                       1.34 µs/iter     744,894.6     (1.09 µs … 1.55 µs)   1.45 µs   1.55 µs   1.55 µs
Buffer.from hex string                                         2.01 µs/iter     496,345.8      (1.54 µs … 2.6 µs)   2.26 µs    2.6 µs    2.6 µs
Buffer.toString ascii string                                 150.16 ns/iter   6,659,630.5 (144.99 ns … 166.68 ns)  152.4 ns 157.26 ns 159.14 ns
Buffer.toString base64 string                                164.73 ns/iter   6,070,692.0 (158.77 ns … 185.63 ns) 168.48 ns 175.74 ns 176.68 ns
Buffer.toString utf16 string                                 150.61 ns/iter   6,639,864.0  (148.2 ns … 168.29 ns) 150.93 ns 157.21 ns 168.15 ns
Buffer.toString hex string                                    94.21 ns/iter  10,614,972.9   (86.21 ns … 98.75 ns)  95.43 ns  97.99 ns  98.21 ns
```

### String length 1500
With moderate lengths we already see great upsides for `Buffer.from()`
with ASCII and UTF-16.

**This PR:**
```
benchmark                                                     time (avg)        iter/s             (min … max)       p75       p99      p995
-------------------------------------------------------------------------------------------------------------- -----------------------------
Buffer.from ascii string                                       5.79 µs/iter     172,562.6     (4.72 µs … 4.71 ms)   5.04 µs   10.3 µs  11.67 µs
Buffer.from base64 string                                      5.08 µs/iter     196,678.9     (4.97 µs … 5.76 µs)   5.08 µs   5.76 µs   5.76 µs
Buffer.from utf16 string                                       9.68 µs/iter     103,316.5     (7.14 µs … 3.44 ms)  10.32 µs  13.42 µs  15.21 µs
Buffer.from hex string                                         53.7 µs/iter      18,620.2     (49.37 µs … 2.2 ms)  54.74 µs   72.2 µs  81.07 µs
Buffer.toString ascii string                                   6.63 µs/iter     150,761.3     (5.59 µs … 1.11 ms)   6.08 µs  15.68 µs  24.77 µs
Buffer.toString base64 string                                460.57 ns/iter   2,171,224.4 (448.33 ns … 511.73 ns) 465.05 ns 495.54 ns 511.73 ns
Buffer.toString utf16 string                                   6.52 µs/iter     153,287.0     (6.47 µs … 6.66 µs)   6.53 µs   6.66 µs   6.66 µs
Buffer.toString hex string                                     3.68 µs/iter     271,965.4     (3.64 µs … 3.82 µs)   3.68 µs   3.82 µs   3.82 µs
```

**Main:**
```
benchmark                                                     time (avg)        iter/s             (min … max)       p75       p99      p995
-------------------------------------------------------------------------------------------------------------- -----------------------------
Buffer.from ascii string                                      11.46 µs/iter      87,298.1    (8.53 µs … 834.1 µs)   9.61 µs  83.31 µs   87.3 µs
Buffer.from base64 string                                       5.4 µs/iter     185,027.8     (5.07 µs … 7.49 µs)   5.44 µs   7.49 µs   7.49 µs
Buffer.from utf16 string                                       20.3 µs/iter      49,270.8  (13.55 µs … 649.11 µs)   18.8 µs 113.93 µs 125.17 µs
Buffer.from hex string                                        52.03 µs/iter      19,218.9    (48.74 µs … 2.59 ms)  52.84 µs  67.05 µs  73.56 µs
Buffer.toString ascii string                                   6.46 µs/iter     154,822.5     (6.32 µs … 6.69 µs)   6.52 µs   6.69 µs   6.69 µs
Buffer.toString base64 string                                440.19 ns/iter   2,271,764.6    (427 ns … 490.77 ns) 444.74 ns 484.64 ns 490.77 ns
Buffer.toString utf16 string                                   6.89 µs/iter     145,106.7     (6.81 µs … 7.24 µs)   6.91 µs   7.24 µs   7.24 µs
Buffer.toString hex string                                     3.66 µs/iter     273,456.5      (3.6 µs … 4.02 µs)   3.64 µs   4.02 µs   4.02 µs
```

### String length 2^20
With massive lengths we the difference in ASCII and UTF-16 parsing
performance is enormous.

**This PR:**
```
benchmark                                                           time (avg)        iter/s             (min … max)       p75       p99      p995
-------------------------------------------------------------------------------------------------------------------- -----------------------------
Buffer.from ascii string                                              4.1 ms/iter         243.7     (2.64 ms … 6.74 ms)   4.43 ms   6.26 ms   6.74 ms
Buffer.from base64 string                                            3.74 ms/iter         267.6     (2.91 ms … 4.92 ms)   3.96 ms   4.31 ms   4.92 ms
Buffer.from utf16 string                                             7.72 ms/iter         129.5    (5.91 ms … 11.03 ms)   7.97 ms  11.03 ms  11.03 ms
Buffer.from hex string                                              35.72 ms/iter          28.0   (34.71 ms … 38.42 ms)  35.93 ms  38.42 ms  38.42 ms
Buffer.toString ascii string                                        78.92 ms/iter          12.7   (42.72 ms … 94.13 ms)  91.64 ms  94.13 ms  94.13 ms
Buffer.toString base64 string                                      833.62 µs/iter       1,199.6   (638.05 µs … 5.97 ms) 826.86 µs   2.45 ms   2.48 ms
Buffer.toString utf16 string                                        79.35 ms/iter          12.6    (69.72 ms … 88.9 ms)  86.66 ms   88.9 ms   88.9 ms
Buffer.toString hex string                                          31.04 ms/iter          32.2      (4.3 ms … 46.9 ms)  37.21 ms   46.9 ms   46.9 ms
```

**Main:**
```
benchmark                                                           time (avg)        iter/s             (min … max)       p75       p99      p995
-------------------------------------------------------------------------------------------------------------------- -----------------------------
Buffer.from ascii string                                            18.66 ms/iter          53.6   (15.61 ms … 23.26 ms)  20.62 ms  23.26 ms  23.26 ms
Buffer.from base64 string                                             4.7 ms/iter         212.9     (2.94 ms … 9.07 ms)   4.65 ms   9.06 ms   9.07 ms
Buffer.from utf16 string                                            33.49 ms/iter          29.9   (31.24 ms … 35.67 ms)  34.08 ms  35.67 ms  35.67 ms
Buffer.from hex string                                              39.38 ms/iter          25.4   (38.66 ms … 42.36 ms)  39.58 ms  42.36 ms  42.36 ms
Buffer.toString ascii string                                        77.68 ms/iter          12.9   (67.46 ms … 95.68 ms)  84.71 ms  95.68 ms  95.68 ms
Buffer.toString base64 string                                      825.53 µs/iter       1,211.3   (655.38 µs … 6.69 ms) 816.62 µs   3.07 ms   3.13 ms
Buffer.toString utf16 string                                        76.54 ms/iter          13.1    (66.9 ms … 85.26 ms)  83.63 ms  85.26 ms  85.26 ms
Buffer.toString hex string                                          38.56 ms/iter          25.9   (33.83 ms … 46.56 ms)  45.33 ms  46.56 ms  46.56 ms
```
 2023-09-07 14:41:16 -06:00
Bartek Iwańczuk
72fe9bb470
refactor: rename InternalModuleLoader to ExtModuleLoader, use ext: scheme 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
 2023-03-08 12:44:54 +01:00
Leo Kettmeir
49af1ab18d
refactor: remove prefix from include_js_files & use extension name (#17683) 2023-02-07 21:09:50 +00:00
Leo Kettmeir
b4aa153097
refactor: Use ES modules for internal runtime code (#17648) 
This PR refactors all internal js files (except core) to be written as
ES modules.
`__bootstrap`has been mostly replaced with static imports in form in
`internal:[path to file from repo root]`.
To specify if files are ESM, an `esm` method has been added to
`Extension`, similar to the `js` method.
A new ModuleLoader called `InternalModuleLoader` has been added to
enable the loading of internal specifiers, which is used in all
situations except when a snapshot is only loaded, and not a new one is
created from it.

---------

Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
 2023-02-07 20:22:46 +01:00
David Sherret
10e4b2e140
chore: update copyright year to 2023 (#17247) 
Yearly tradition of creating extra noise in git.
 2023-01-02 21:00:42 +00:00
Andreu Botella
dbcbf53ab5
experiment(ext/web): Don't expose event classes during the bootstrap phase (#16213) 2022-10-24 16:14:17 +02:00
Luca Casonato
a5b50d0915
feat(ext/web): implement static Response.json (#14566) 
This commit adds support for the static `Response.json` method.
 2022-05-13 14:28:05 +02:00
Andreu Botella
593801e265
cleanup(web, fetch): dedupe minesniff / "extract a MIME type" algorithm (#14044) 
Closes #14002
 2022-03-20 14:31:12 +01:00
Yoshiya Hinosawa
4c1053ad33
chore: update copyright year (#13434) 2022-01-20 16:10:16 +09:00
Kitson Kelly
345f0fbe5c
feat(cli): update to TypeScript 4.5 (#12410) 
Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>
 2021-12-10 09:12:21 +11:00
Aaron O'Mullan
68e5cdaff0
perf(web): ~400x faster http header trimming (#12277) 
Use a regex substring match with a first/last char fastpath instead of 2 regex replaces. Roughly ~400x faster (423ms vs 0.7ms in profiled runs)
 2021-09-30 18:39:55 +02:00
Andreu Botella
1563088f06
fix: a Request whose URL is a revoked blob URL should still fetch (#11947) 
In the spec, a URL record has an associated "blob URL entry", which for
`blob:` URLs is populated during parsing to contain a reference to the
`Blob` object that backs that object URL. It is this blob URL entry that
the `fetch` API uses to resolve an object URL.

Therefore, since the `Request` constructor parses URL inputs, it will
have an associated blob URL entry which will be used when fetching, even
if the object URL has been revoked since the construction of the
`Request` object. (The `Request` constructor takes the URL as a string
and parses it, so the object URL must be live at the time it is called.)

This PR adds a new `blobFromObjectUrl` JS function (backed by a new
`op_blob_from_object_url` op) that, if the URL is a valid object URL,
returns a new `Blob` object whose parts are references to the same Rust
`BlobPart`s used by the original `Blob` object. It uses this function to
add a new `blobUrlEntry` field to inner requests, which will be `null`
or such a `Blob`, and then uses `Blob.prototype.stream()` as the
response's body. As a result of this, the `blob:` URL resolution from
`op_fetch` is now useless, and has been removed.
 2021-09-08 11:29:21 +02:00
Luca Casonato
5d814a4c24
feat: ArrayBuffer in structured clone transfer (#11840) 2021-08-25 13:48:53 +02:00
Ryan Dahl
a0285e2eb8
Rename extensions/ directory to ext/ (#11643) 2021-08-11 12:27:05 +02:00
Renamed from extensions/web/internal.d.ts (Browse further)