另一个防止数据丢失的技术是写屏障。
Another technique that helps with data corruption is write barriers.
InfoQ：看起来这个补丁将会是迈向新一代垃圾收集器的第一步，尤其是关于处理写屏障和可记忆化集合的代码介绍。
InfoQ: it seems like the longlife GC patch is the first step towards a generational GC, particularly the introduction of code for handling write barriers and remembered sets.
为保持较短的单次GC暂停时间，Metronome 在堆内使用了写屏障（write barrier）以及相关的亚结构（metastructure）来跟踪活动的和可能死亡了的对象。
To keep individual GC pauses short, Metronome uses write barriers within the heap and associated metastructures to track live and potentially dead objects.
特别是Ext4利用日志校验和写屏障来减少由日志或乱序写入磁盘缓存(out -of - orderwritecachingonharddrives)而导致的文件系统数据部一致的概率。
In particular it USES journal check summing and write barriers to help reduce the probability of data corruption from journals and out-of-order write caching on hard drives.
其他公司的会议可能会占用几个小时，而在这里通常只不过是在排队购买午餐时的一次聊天，写代码的人和写检查程序的人之间不存在任何屏障。
Meetings that would take hours elsewhere are frequently little more than a conversation in line for lunch and few walls separate those who write the code from those who write the checks.
其他公司的会议可能会占用几个小时，而在这里通常只不过是在排队购买午餐时的一次聊天，写代码的人和写检查程序的人之间不存在任何屏障。
Meetings that would take hours elsewhere are frequently little more than a conversation in line for lunch and few walls separate those who write the code from those who write the checks.
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