diff options
| author | Jakob Unterwurzacher | 2016-07-01 23:29:31 +0200 |
|---|---|---|
| committer | Jakob Unterwurzacher | 2016-07-01 23:32:27 +0200 |
| commit | f2b4d57068d13b6dc3de2ccc6550675d11d34cfa (patch) | |
| tree | b90d31b0375e41318f2ce879df14f36bff4e3b5e /internal/contentenc/offsets.go | |
| parent | ae77d1852793c4dd43c8ddd69de574223aecce5e (diff) | |
fusefrontend: coalesce grows in Truncate()
We were growing the file block-by-block which was pretty
inefficient. We now coalesce all the grows into a single
Ftruncate. Also simplifies the code!
Simplistic benchmark: Before:
$ time truncate -s 1000M foo
real 0m0.568s
After:
$ time truncate -s 1000M foo
real 0m0.205s
Diffstat (limited to 'internal/contentenc/offsets.go')
| -rw-r--r-- | internal/contentenc/offsets.go | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/internal/contentenc/offsets.go b/internal/contentenc/offsets.go index da0551a..256ea26 100644 --- a/internal/contentenc/offsets.go +++ b/internal/contentenc/offsets.go @@ -66,6 +66,7 @@ func (be *ContentEnc) PlainSizeToCipherSize(plainSize uint64) uint64 { } // Split a plaintext byte range into (possibly partial) blocks +// Returns an empty slice if length == 0. func (be *ContentEnc) ExplodePlainRange(offset uint64, length uint64) []intraBlock { var blocks []intraBlock var nextBlock intraBlock |