1
linux/fs/squashfs
Minchan Kim cd59c2ec5f 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>
2013-11-20 03:35:18 +00:00
..
block.c Squashfs: Refactor decompressor interface and code 2013-11-20 03:35:18 +00:00
cache.c
decompressor_multi.c squashfs: Enhance parallel I/O 2013-11-20 03:35:18 +00:00
decompressor_single.c Squashfs: Refactor decompressor interface and code 2013-11-20 03:35:18 +00:00
decompressor.c Squashfs: Refactor decompressor interface and code 2013-11-20 03:35:18 +00:00
decompressor.h Squashfs: Refactor decompressor interface and code 2013-11-20 03:35:18 +00:00
dir.c Squashfs: add corruption check for type in squashfs_readdir() 2013-09-06 04:57:54 +01:00
export.c
file.c
fragment.c
id.c
inode.c userns: Convert squashfs to use kuid/kgid where appropriate 2012-09-21 03:13:35 -07:00
Kconfig squashfs: Enhance parallel I/O 2013-11-20 03:35:18 +00:00
lzo_wrapper.c Squashfs: Refactor decompressor interface and code 2013-11-20 03:35:18 +00:00
Makefile squashfs: Enhance parallel I/O 2013-11-20 03:35:18 +00:00
namei.c Squashfs: fix corruption checks in squashfs_lookup() 2013-09-06 04:57:53 +01:00
squashfs_fs_i.h
squashfs_fs_sb.h Squashfs: Refactor decompressor interface and code 2013-11-20 03:35:18 +00:00
squashfs_fs.h Squashfs: add corruption check for type in squashfs_readdir() 2013-09-06 04:57:54 +01:00
squashfs.h Squashfs: Refactor decompressor interface and code 2013-11-20 03:35:18 +00:00
super.c Squashfs: Refactor decompressor interface and code 2013-11-20 03:35:18 +00:00
symlink.c
xattr_id.c
xattr.c
xattr.h
xz_wrapper.c Squashfs: Refactor decompressor interface and code 2013-11-20 03:35:18 +00:00
zlib_wrapper.c Squashfs: Refactor decompressor interface and code 2013-11-20 03:35:18 +00:00