原文链接:https://mp.weixin.qq.com/s/PQb_PwgxzyeeFZyz3FsO6wEROFS pluster 模式的用处:It's used to judge whether inplace I/O can be used due to the current status of pclusters in the chain.有四种:INFLIG...阅读全文
因为 EROFS 就是奔着取代 SquashFS 去的(should be),之前我们已经添加了碎片的支持,但是不支持去重。先大概看下 SquashFS 碎片去重是怎么做的。知己知彼,才能百战百胜。Check SquashFS 碎片去重参考 squashfs-tools 4.5.1/* hash tables used to do fast duplicate searc...阅读全文
EROFS 文件系统刚提交了压缩去重特性提升压缩率,一起来看下。rolling hash 基础dedup 用到了 rolling hash,先了解下。wikipedia 的定义是:A hash function is any function that can be used to map data of arbitrary size to fixed-size valu...阅读全文
compact index是EROFS默认使用的压缩布局,内核提交描述如下: staging: erofs: add compacted ondisk compression indexes
This patch introduces new compacted compression indexes.
In contract to legacy...阅读全文