Suppose I have a very large array in memory and want to clear it after it's
no longer needed. This snippet replicates the scenario:
console.log("Memory usage initial:", process.memoryUsage());
var hugeStack = [], i, obj;
function longRandomString(){
return Math.random().toString(7) + Math.random().toString(7) +
Math.random().toString(7) + Math.random().toString(7);
}
for (i = 0; i < 1000; i++) {
obj = {
a: longRandomString(),
b: longRandomString(),
c: longRandomString()
};
hugeStack.push(obj);
}
console.log("Memory usage with full stack:", process.memoryUsage());
hugeStack = [];
obj = null;
delete hugeStack, obj;
console.log("Memory usage with cleared stack:", process.memoryUsage());
I would expect the last memoryUsage() report to drop significantly from the
2nd one, close to the initial level - but it just keeps going up.
What's the proper way to clear up this memory usage?
Thanks!
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