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| author | Kazuya Mio <k-mio@sx.jp.nec.com> | 2010-12-13 09:59:07 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2010-12-13 09:59:07 -0500 |
| commit | 77e72e2b8e9b17e6cac15b15a6786de14505ead8 (patch) | |
| tree | 2181862474406d2dc9fec0632b0e217b983a50e0 /misc/e4defrag.8.in | |
| parent | 4baacad7035820f6449473b62510d4202e69578a (diff) | |
| download | e2fsprogs-77e72e2b8e9b17e6cac15b15a6786de14505ead8.tar.gz | |
e4defrag: update man page about -c option
Add the description of the size per one extent and the maximum extent size
in ext4 into e4defrag man page.
Signed-off-by: Kazuya Mio <k-mio@sx.jp.nec.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'misc/e4defrag.8.in')
| -rw-r--r-- | misc/e4defrag.8.in | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/misc/e4defrag.8.in b/misc/e4defrag.8.in index 3ba8570e..75e1bc9f 100644 --- a/misc/e4defrag.8.in +++ b/misc/e4defrag.8.in @@ -35,16 +35,20 @@ point. .SH OPTIONS .TP .B \-c -Get the fragmentation count and calculate fragmentation score based on it -before and after defrag. By seeing this score, we can determine whether we -should execute +Get a current fragmentation count and an ideal fragmentation count, and +calculate fragmentation score based on them. By seeing this score, we can +determine whether we should execute .B e4defrag to .IR target . When used with .B \-v -option, the fragmentation count before and after defrag is printed for each -file. +option, the current fragmentation count and the ideal fragmentation count are +printed for each file. +.IP +Also this option outputs the average data size in one extent. If you see it, +you'll find the file has ideal extents or not. Note that the maximum extent +size is 131072KB in ext4 filesystem (if block size is 4KB). .IP If this option is specified, .I target |