Hash::Ordered
duration (set    ): 0.20
duration (push   ): 0.24
duration (unshift): 0.29
duration (merge  ): 0.23
total time        : 0.95

MCE::Shared::Ordhash
duration (set    ): 0.12
duration (push   ): 0.16
duration (unshift): 0.21
duration (merge  ): 0.15
total time        : 0.65