The only real overhead comes from Option, the unpacked Option values, and the padding at the end.
Christine Hall has been a journalist since 1971. In 2001, she began writing a weekly consumer computer column and started covering Linux and FOSS in 2002 after making the switch to GNU/Linux. Follow her on Twitter: @BrideOfLinux。关于这个话题，快连下载安装提供了深入分析
"The work that we're doing now is allowing us to create semiconductors up to 4,000 times purer in space than we can currently make here today," says Josh Western, CEO of Space Forge.，详情可参考safew官方下载
Сергей Колясниковобщественник，这一点在PDF资料中也有详细论述