[Solved] What does the Global Interpreter Lock (GIL) in Ruby do? — Ans: Allows only one thread to execute Ruby code at a time | Ruby

Ruby - Concurrent Programming

What does the Global Interpreter Lock (GIL) in Ruby do?

AAutomatically speeds up all multi-threaded Ruby programs

BAllows multiple threads to run Ruby code simultaneously

CPrevents any threads from running in Ruby

DAllows only one thread to execute Ruby code at a time

Step-by-Step Solution

Solution:

Step 1: Understand the role of GIL
The GIL is a lock that ensures only one thread runs Ruby code at once.
Final Answer:
Allows only one thread to execute Ruby code at a time -> Option D
Quick Check:
GIL = single-thread execution [OK]

Quick Trick: GIL means one thread runs Ruby code at a time [OK]

Common Mistakes:

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What does the Global Interpreter Lock (GIL) in Ruby do?