Test for memory management of fs module, for async and sync read

• Memory could be measured with:

watch -n 1 'pmap -p \$(pgrep node) | tail -n -1 | cut -c 10- | tee -a result.txt'

or

top | watch node

• Run test with:

npm start

• Test has no npm dependencies.

• Switch between sync, async, number of read directly in code.

• WARNING: 10^5 async reads could consume 12GB of memory, so be careful with numbers.

• Results for node 6 and 12:

• Results for different amount of reads, node 6.17.1:

• Results for different file size (10, 20, 40, 80 KB)

• Results for very log wait - 1 hour