Hi folks, A new version erofs-utils 1.3 is available at: git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs-utils.git tags/v1.3 It mainly includes the following changes: - support new big pcluster feature together with Linux 5.13+; - optimize buffer allocation logic (Hu Weiwen); - optimize build performance for large directories (Hu Weiwen); - add support to override uid / gid (Hu Weiwen); - add support to adjust lz4 history window size (Huang Jianan); - add a manual for erofsfuse; - add support to limit max decompressed extent size; - various bugfixes and cleanups; One notable update is that it now supports EROFS big pcluster [1][2], which allows compressing variable-sized data into more than 1 fs block by using fixed-sized output compression [3]. It can be used for some (sub)-files with specific data access patterns (such as oneshot data segments which need better compression ratio and thus better sequential performance.) Note that users can write their own per-(sub)files big pcluster strategies to adjust pclustersize in time according to file type static analysis or historical tracing data in z_erofs_get_max_pclusterblks(). And default strategies will be developed and built-in laterly in the future. btw, I've heard more in-market products shipped with EROFS, for example OPPO [4] and Coolpad [5] with some public news plus more in-person contacts from time to time. It's always worth trying and feedback or contribution is welcomed. [1] https://www.kernel.org/doc/html/latest/filesystems/erofs.html [2] https://lore.kernel.org/r/20210407043927.10623-1-xiang@xxxxxxxxxx [3] https://www.usenix.org/system/files/atc19-gao.pdf [4] https://new.qq.com/omn/20210312/20210312A0D9HT00.html [5] https://hunchmag.com/helio-g80-erofs-48-mp-arcsoft-and-cool-os-coolpad-cool-2-smartphone-announced/ Thanks, Gao Xiang
