Keep Synchronized Sections Small

A synchronized section of code introduces a lock.

• Only one thread of at any given time.

• Locks are expensive because they introduce delays and add overhead.

• The fewer the better. Littering code with lock statements is a bad idea.

Naive programmers try to make their critical sections very large

• This will increase contention and degrade performance.

Recommendation:

Keep Critical Sections as Small as Possible