Hi, On 04/12/2012 04:15 PM, Mélodie wrote:>
> I have been a user of Compcache almost since the beginning. I had installed > it to > Archlinux, when it came out in version 5.x, then with the version 6.x, and > have been very > happy to use it and try it to a Debian minimal version I had installed to an > old machine > as well. > > I am astonished to still see in my dmesg : > > "zram: module is from the staging directory, the quality is unknown, you have > been > warned. " > > after... almost 5 years of development ? The development usually happens only a few months every year. Combine this with various time pressures and my laziness to try and push it into mainline proper (out of staging). > > I have been told at the #kernelnewbies chan that in the kernel 3.4.0-rc2 > (at least his 3.4.0-rc2 era git tree) still has the zram module source code > in > drivers/staging. > > I have seen that a few issues have been reported at the Compcache website > project, so I > suppose some issues do exist... > > I am only a simple user, and can only say in my computers : PC with either > Intel or AMD > processors, single or dual-core, I didn't find any perverse effect. (Simple > user, not > sophisticated benchmark here). > > I have now been using it with a script meant to load it with the default > recommended > configuration, making a device large as 1/4the of the available ram, one > block device > only, in PCLinuxOS, since 2 years, on 3 different machines minimum, with an > visible > improvement while using it : some virtual machines (in Virtualbox) which > would not be > usable otherwise were usable, and some people have tested installing with a > gui installer > needing some resource, on a machine having 128 MB ram, without the need to > create a swap > file to compensate the lack of RAM memory. > > So I will have a simple question here : what is missing to Compcache for it > to be taken > out of the staging directory in the kernel tree ? > As of now, zram memory allocator, xvmalloc, has been recently replaced by zsmalloc[1] which is itself a staging module. Some folks are working on resolving some of the outstanding issues with zsmalloc and when those are resolved, zram (I think) can be moved out of staging. [1] http://lwn.net/Articles/477067/ > Many regards, and lots of thanks for this component !! > I'm glad you find it useful. Thanks, Nitin _______________________________________________ linux-mm-cc mailing list [email protected] http://lists.laptop.org/listinfo/linux-mm-cc
