Displaying 1 result from an estimated 1 matches for "20971520io".
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20971520
2013 May 21
2
rsync behavior on copy-on-write filesystems
...te: Compression is turned on, but our random data defeats it.
$ btrfs subvolume create src
$ time dd if=/dev/urandom of=src/10gb bs=4k count=2621440 conv=notrunc
2621440+0 records in
2621440+0 records out
10737418240 bytes (11 GB) copied, 811.427 s, 13.2 MB/s
0.400u 806.115s 13:31.42 99.3% 0+0k 0+20971520io 0pf+0w
$ df -h .
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/jobarchive-Ajobarchivetest2
300G 11G 283G 4% /vol/jobarchive_Ajobarchivetest2
## 3) Create a second subvolume called current. Copy the first file into it.
$ btrfs subvolume create curre...