GC.measure_total_time=

[T] (T enable) -> T

GC.measure_total_time = true/false

# File tmp/rubies/ruby-3.4.1/gc.rb, line 364
def self.measure_total_time=(flag)
  Primitive.cstmt! %{
    rb_gc_impl_set_measure_total_time(rb_gc_get_objspace(), flag);
    return flag;
  }
end

Enables measuring GC time. You can get the result with GC.stat(:time). Note that GC time measurement can cause some performance overhead.

See also .measure_total_time .start .latest_gc_info .stat also in 4.1 · 4.0 · 3.3 · 3.2 · 3.1

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