Commit d2183d8
lib: optimize writable stream buffer clearing
Improved the `clearBuffer` function
by replacing `buffered.splice` with `ArrayPrototypeSlice`.
- Eliminates O(N) shifting overhead.
- Improves CPU utilization and reduces GC overhead.
PR-URL: #59406
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Ethan Arrowood <ethan@arrowood.dev>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Anna Henningsen <anna@addaleax.net>1 parent 7e10f95 commit d2183d8
1 file changed
Lines changed: 1 addition & 1 deletion
| Original file line number | Diff line number | Diff line change | |
|---|---|---|---|
@@ -784,7 +784,7 @@ function clearBuffer(stream, state) { | |||
| 784 | 784 | if (i === buffered.length) { | |
| 785 | 785 | resetBuffer(state); | |
| 786 | 786 | } else if (i > 256) { | |
| 787 | - buffered.splice(0, i); | ||
| 787 | + state[kBufferedValue] = ArrayPrototypeSlice(buffered, i); | ||
| 788 | 788 | state.bufferedIndex = 0; | |
| 789 | 789 | } else { | |
| 790 | 790 | state.bufferedIndex = i; | |
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