On Tue, Dec 20, 2016 at 07:53:09PM +0100, Sven Schmidt wrote: > > This patchset is for updating the LZ4 compression module to a version based > on LZ4 v1.7.2 allowing to use the fast compression algorithm aka LZ4 fast > which provides an "acceleration" parameter as a tradeoff between > compression ratio and compression speed.
But why do this? > We will use LZ4 fast in order to support compression in lustre. LZ4 fast > empowers > us to do client-side as well as server-side compression/decompression while > being able to provide appropriate parameters to enable users to tune lustre's > behaviour to obtain the best performance/compression/etc. on their behalf > (adapative compression). We don't care about lustre, especially as it is not merged into the main portion of the kernel tree :) Seriously, work on fixing up the known issues in lustre before adding additional features, I've only been saying this for a few _years_ now... > Also, it will be useful for other users of LZ4 compression, > as with LZ4 fast it is possible to enable applications to use fast and/or high > compression depending of the usecase. E.g. a developer can use very > high compression (low acceleration) for sending data over a network with > limited rate of transmission or he trades the compression ratio for higher > compression speed. This whole patch series is broken, always test-build your code, there's nothing we could do with these patches even if we wanted to :( greg k-h
