On Tue, May 11, 2021 at 8:58 AM Qiyu Yan <yanqiyu@xxxxxxxxxxxxxxxxx> wrote: > > Dear folks, > > My problem is that new file created at /usr won't be compressed. > > I accenticly that none of my files under /usr is compressed[1], so I > tried to run `sudo btrfs fi def -czstd -v -r /usr` to compress them, > that seems to work. And `sudo compsize /usr` now gives > Processed 431312 files, 224528 regular extents (230971 refs), 253758 > inline. > Type Perc Disk Usage Uncompressed Referenced > TOTAL 56% 7.2G 12G 13G > none 100% 3.5G 3.5G 3.5G > zstd 39% 3.6G 9.2G 9.7G > > This seems pretty good, but when I am testing dding to dump a file to > /usr to test compress for new file, problem happens: > > [root@yan-desktop /]# dd if=/dev/zero of=/usr/1 bs=10240 count=10000 > 记录了10000+0 的读入 > 记录了10000+0 的写出 > 102400000字节（102 MB，98 MiB）已复制，0.0426441 s，2.4 GB/s > [root@yan-desktop /]# dd if=/dev/zero of=/etc/1 bs=10240 count=10000 > 记录了10000+0 的读入 > 记录了10000+0 的写出 > 102400000字节（102 MB，98 MiB）已复制，0.0585055 s，1.8 GB/s > [root@yan-desktop /]# compsize /usr/1 > Processed 1 file, 1 regular extents (1 refs), 0 inline. > Type Perc Disk Usage Uncompressed Referenced > TOTAL 100% 97M 97M 97M > none 100% 97M 97M 97M > [root@yan-desktop /]# compsize /etc/1 > Processed 1 file, 782 regular extents (782 refs), 0 inline. > Type Perc Disk Usage Uncompressed Referenced > TOTAL 3% 3.0M 97M 97M > zstd 3% 3.0M 97M 97M I'm unable to reproduce this. Can you do: ls -li to list the inode number of a file in /usr that should be compress but isn't and then plug that inode number into btrfs insp dump-t -t 257 /dev/xyz | grep -C 20 $INUM This may expose file names for other files. Doesn't matter to me if you include the whole output of the above comment or trim to just the cluster of items referencing that inode number. -- Chris Murphy _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
