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| author | Minchan Kim <minchan@kernel.org> | 2013-10-28 14:26:30 +0900 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-11 11:00:16 +0200 |
| commit | 48182c4e999b6696de6225af60eec109c5ae748b (patch) | |
| tree | 44c308378b33ebcde5fb5e9609d922ce7059f5d8 /scripts | |
| parent | 6050a34f2e3ed135fc83a659d38fe9d099b3ea7b (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>
Change-Id: I8d4b33a797ed45e6ce792a58e6c107d6c8eac9ed
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions