英文:
How to empty out an arrayBuffer?
问题
buf仍然存在于内存中，占用了大量的RAM（我猜与blob本身一样多）。我该如何清空它，以便可以释放内存？
英文:
I have a sample code as such :
async function example() {
const blob = new Blob(['bobbyhadz.com']);
const buf = await blob.arrayBuffer();
console.log(buf.byteLength);
}
example();
However buf remains in memory and occupies the ram to a great extent ( as much as the blob itself I suppose ). How can I empty it out so I can get the memory back?
答案1
得分: 0
尝试这个，使用"let"代替"const"。
async function example() {
let blob = new Blob(['bobbyhadz.com']);
let buf = await blob.arrayBuffer();
buf = [];
console.log(buf.byteLength);
}
example();
英文:
try this one.use let instead off const
async function example() {
let blob = new Blob(['bobbyhadz.com']);
let buf = await blob.arrayBuffer();
buf = [];
console.log(buf.byteLength);
}
example();
答案2
得分: 0
以下是翻译好的代码部分：
发现这是一个仅在Ubuntu上出现的垃圾回收问题。我通过手动清理来解决它，如下所示：
const startCleaning = () => {
const cleanUpTimer = setInterval(() => {
if (global.gc) {
const checkIt = ~~(process.memoryUsage().arrayBuffers / 1024);
console.log('INTERVAL ACTIVE', checkIt);
if (checkIt > 5000) {
console.log('CLEANED!', checkIt);
global.gc();
} else {
console.log('INTERVAL DEACTIVATED!', checkIt);
clearInterval(cleanUpTimer);
}
}
}, 5000);
}
英文:
It turns out it is a garbage collection problem that only occurs on Ubuntu. I tackled it by manually cleaning it up as such :
const startCleaning = ()=> {
const cleanUpTimer = setInterval(()=>{
if(global.gc){
const checkIt = ~~(process.memoryUsage().arrayBuffers / 1024)
console.log('INTERVAL ACTIVE' , checkIt)
if(checkIt > 5000){
console.log('CLEANED!' , checkIt)
global.gc()
}else{
console.log('INTERVAL DEACTIVATED!' , checkIt )
clearInterval(cleanUpTimer)
}
}
},5000)}
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