diff options
| author | Minchan Kim <minchan@kernel.org> | 2013-10-28 14:26:30 +0900 |
|---|---|---|
| committer | Phillip Lougher <phillip@squashfs.org.uk> | 2013-11-20 03:35:18 +0000 |
| commit | cd59c2ec5f37a2bc1315c9324aab6c21d43ffa1a (patch) | |
| tree | 10c3dca3e50bdc1f58f025f02cd85a2bfd8d3420 /fs/freevxfs/vxfs_fshead.c | |
| parent | 9508c6b90b3f57ecea4e7a896cf8325400fc0c6e (diff) | |
squashfs: Enhance parallel I/O
Now squashfs have used for only one stream buffer for decompression
so it hurts parallel read performance so this patch supports
multiple decompressor to enhance performance parallel I/O.
Four 1G file dd read on KVM machine which has 2 CPU and 4G memory.
dd if=test/test1.dat of=/dev/null &
dd if=test/test2.dat of=/dev/null &
dd if=test/test3.dat of=/dev/null &
dd if=test/test4.dat of=/dev/null &
old : 1m39s -> new : 9s
* From v1
* Change comp_strm with decomp_strm - Phillip
* Change/add comments - Phillip
Signed-off-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
Diffstat (limited to 'fs/freevxfs/vxfs_fshead.c')
0 files changed, 0 insertions, 0 deletions