> From: Simon Jeons [mailto:simon.jeons@xxxxxxxxx] > Subject: Re: [LSF/MM TOPIC] In-kernel compression in the MM subsystem > > Hi Dan, > On Sat, 2013-01-26 at 12:16 -0800, Dan Magenheimer wrote: > > There's lots of interesting things going on in kernel memory > > management, but one only(?) increases the effective amount > > of data that can be stored in a fixed amount of RAM: in-kernel > > compression. > > > > Since ramzswap/compcache (now zram) was first proposed in 2009 > > as an in-memory compressed swap device, there have been a number > > of in-kernel compression solutions proposed, including > > zcache, kztmem, and now zswap. Each shows promise to improve > > performance by using compression under memory pressure to > > reduce I/O due to swapping and/or paging. Each is still > > in staging (though zram may be promoted by LSFMM 2013) > > because each also brings a number of perplexing challenges. > > > > I think it's time to start converging on which one or more > > of these solutions, if any, should be properly promoted and > > more fully integrated into the kernel memory management > > subsystem. Before this can occur, it's important to build a > > broader understanding and, hopefully, also a broader consensus > > among the MM community on a number of key challenges and questions > > in order to guide and drive further development and merging. > > > > I would like to collect a list of issues/questions, and > > start a discussion at LSF/MM by presenting this list, select > > the most important, then lead a discussion on how ever many > > there is time for. Most likely this is an MM-only discussion > > though a subset might be suitable for a cross-talk presentataion. > > > > Is there benchmark to test each component in tmem? Hi Simon -- I'm not sure what you mean. Could you add a few words to clarify? Thanks, Dan -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href