Hello Sergey, On Thu, Aug 24, 2017 at 10:49:36AM +0900, Sergey Senozhatsky wrote: > Add ZSTD to the list of supported compression algorithms. > > Official benchmarks [1]:
First of all, thanks for the work! I want to ask one thing. Could you add some benchmark(e.g.,) result(comp ratio and speed) compared to (inflate, lzo, lz4)? I want to see how much it's good for small data that ours is 4K. Thanks! > > Compressor name Ratio Compression Decompress. > zstd 1.1.3 -1 2.877 430 MB/s 1110 MB/s > zlib 1.2.8 -1 2.743 110 MB/s 400 MB/s > brotli 0.5.2 -0 2.708 400 MB/s 430 MB/s > quicklz 1.5.0 -1 2.238 550 MB/s 710 MB/s > lzo1x 2.09 -1 2.108 650 MB/s 830 MB/s > lz4 1.7.5 2.101 720 MB/s 3600 MB/s > snappy 1.1.3 2.091 500 MB/s 1650 MB/s > lzf 3.6 -1 2.077 400 MB/s 860 MB/s > > [1] https://github.com/facebook/zstd > > Signed-off-by: Sergey Senozhatsky <sergey.senozhat...@gmail.com> > --- > drivers/block/zram/zcomp.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/block/zram/zcomp.c b/drivers/block/zram/zcomp.c > index 5b8992beffec..cc66daec7bbc 100644 > --- a/drivers/block/zram/zcomp.c > +++ b/drivers/block/zram/zcomp.c > @@ -31,6 +31,9 @@ static const char * const backends[] = { > #endif > #if IS_ENABLED(CONFIG_CRYPTO_842) > "842", > +#endif > +#if IS_ENABLED(CONFIG_CRYPTO_ZSTD) > + "zstd", > #endif > NULL > }; > -- > 2.14.1 >
