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| author | Pádraig Brady <P@draigBrady.com> | 2012-05-01 21:50:49 +0100 |
|---|---|---|
| committer | Pádraig Brady <P@draigBrady.com> | 2012-05-02 18:41:53 +0100 |
| commit | 15f1d0c9aad23f5ada64594c127ca015d4d8dbfe (patch) | |
| tree | 7502b6f0a3ca2b3e0b26f0686aec1e6a240534c6 /src | |
| parent | e744f4b7b7de9b76fdd314aa406e9fb150b9168d (diff) | |
| download | coreutils-15f1d0c9aad23f5ada64594c127ca015d4d8dbfe.tar.xz | |
cp,mv,install: provide POSIX_FADV_SEQUENTIAL hint to input
This was inadvertently omitted from v8.5-104-g47076e3,
and gives the same 5% speedup when copying from an SSD.
* src/copy.c (copy_internal): Apply the FADVISE_SEQUENTIAL hint.
Diffstat (limited to 'src')
| -rw-r--r-- | src/copy.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/copy.c b/src/copy.c index 26bbcf22e..844ebcd78 100644 --- a/src/copy.c +++ b/src/copy.c @@ -39,6 +39,7 @@ #include "cp-hash.h" #include "extent-scan.h" #include "error.h" +#include "fadvise.h" #include "fcntl--.h" #include "fiemap.h" #include "file-set.h" @@ -980,6 +981,8 @@ copy_reg (char const *src_name, char const *dst_name, size_t buf_alignment_slop = sizeof (word) + buf_alignment - 1; size_t buf_size = io_blksize (sb); + fdadvise (source_desc, 0, 0, FADVISE_SEQUENTIAL); + /* Deal with sparse files. */ bool make_holes = false; bool sparse_src = false; |