[Solved] You want to profile only the slowest part of this code:require 'benchmark' result = Benchmark.measure do fast = (1..1000).map { |x| x + 1 } slow = (1..100000).map { |x| x * 2 } end puts result.real.... | Ruby

Ruby - Ecosystem and Best Practices

You want to profile only the slowest part of this code:

require 'benchmark'
result = Benchmark.measure do
  fast = (1..1000).map { |x| x + 1 }
  slow = (1..100000).map { |x| x * 2 }
end
puts result.real.round(2)

How can you modify the code to profile only the slow part?

AUse Benchmark.measure for both maps separately and add results

BAdd sleep(1) before the slow map

CMove Benchmark.measure block to wrap only the slow map operation

DIncrease the range of the fast map to match slow

Step-by-Step Solution

Solution:

Step 1: Identify profiling scope
Profiling measures all code inside the block.
Step 2: Isolate slow code
Wrap only the slow map in Benchmark.measure to measure it alone.
Final Answer:
Move Benchmark.measure block to wrap only the slow map operation -> Option C
Quick Check:
Profile only slow code by isolating it in Benchmark block [OK]

Quick Trick: Wrap only slow code in Benchmark.measure to isolate timing [OK]

Common Mistakes:

Profiling entire code instead of slow part
Adding unrelated sleep
Changing fast code to match slow

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You want to profile only the slowest part of this code:

Step 1: Identify profiling scope

Step 2: Isolate slow code

Final Answer:

Quick Check:

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