addaleax

#include <stdint.h>
#include <string.h>
#include <stdio.h>
#include <emmintrin.h>
#include <immintrin.h>

// header
extern "C" {
size_t utf8_length_for_latin1_str(const uint8_t* latin1_str, size_t latin1_len);
}

addaleax

#include <stdint.h>
#include <string.h>
#include <stdio.h>
#include <emmintrin.h>
#include <immintrin.h>

// header
extern "C" {
// Returns true if str can be converted to latin1.
bool utf8_can_be_converted_to_latin1(const uint8_t* str, size_t len);

addaleax

function bench(name, fn) {
  const a = process.hrtime.bigint();
  for (let i = 0; i < 1e7; i++)
    fn();
  const seconds = Number(process.hrtime.bigint() - a) / 1e9;
  console.log({ name, seconds });
}

class Private {
  #privateProp = 0;

addaleax

'use strict';
const orig = Buffer.allocUnsafe;

const stats = {
  inUse: 0,
  allocated: 0
};

const group = new FinalizationGroup((holdings) => {
  for (const info of holdings) {

addaleax

diff --git a/deps/v8/include/libplatform/v8-tracing.h b/deps/v8/include/libplatform/v8-tracing.h
index e7cd8bfcdb66..df145e95bf72 100644
--- a/deps/v8/include/libplatform/v8-tracing.h
+++ b/deps/v8/include/libplatform/v8-tracing.h
@@ -244,6 +244,8 @@ class V8_PLATFORM_EXPORT TracingController
 
   TracingController();
   ~TracingController() override;
+
+  // Takes ownership of |trace_buffer|.

addaleax

'use strict';
const fs = require('fs').promises;
const child_process = require('child_process');

const kPIDSpace = 100000;
const kSetupParallelism = 100;

async function createUnwritableFile(filename) {
  try {
    await fs.unlink(filename);

addaleax

Keybase proof

I hereby claim:

• I am addaleax on github.
• I am addaleax (https://keybase.io/addaleax) on keybase.
• I have a public key ASA6TkRUs_sUB4bBkhE4Y4s-Y70CA3syT1JaDOi3w5u1Iwo

To claim this, I am signing this object:

addaleax

                                                                                                                                               improvement significant      p.value
 buffers/buffer-base64-decode.js                                                                                                                     0.33 %             4.989959e-01
 buffers/buffer-base64-encode.js                                                                                                                    -0.26 %             5.876859e-01
 buffers/buffer-bytelength.js n=5000000 len=16 encoding="base64"                                                                                    -0.20 %             5.174388e-01
 buffers/buffer-bytelength.js n=5000000 len=16 encoding="utf8"                                                                                      -0.18 %             4.589270e-01
 buffers/buffer-bytelength.js n=5000000 len=1 encoding="base64"