End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

class method

GC.measure_total_time=

GC.measure_total_time = true/false

# File tmp/rubies/ruby-3.1.3/gc.rb, line 276
def self.measure_total_time=(flag)
  Primitive.cstmt! %{
    rb_objspace.flags.measure_gc = RTEST(flag) ? TRUE : FALSE;
    return flag;
  }
end

Enable to measure 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 .remove_stress_to_class .malloc_allocations .start also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2

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