Hi Cristian, Disclaimer: I knew nothing about zcache before, and I still don't know a lot. Le lundi 10 septembre 2012 à 21:30 -0300, Cristian Rodríguez a écrit :
In current openSUSE kernels one cannot use zcache=deflate, only the default LZO unless CONFIG_CRYPTO_DEFLATE is set to Y.
Will be cool if this can be changed in the future.
So you're basically asking for CONFIG_CRYPTO_DEFLATE to be changed from =m to =y in all configurations (all architectures?.) This will increase the kernel size by 5-7 kB and slow down booting a bit for everyone. So we'll need a good reason for doing that. You did not tell why you wanted to use zcache=deflate. I presume there's a good reason why lzo is the default, so why do you want deflate instead? For reference, http://en.wikipedia.org/wiki/Lempel%E2%80%93Ziv%E2%80%93Oberhumer suggests that LZO is faster than deflate on the decompression side. Also, did you try adding deflate to your initrd (add it to INITRD_MODULES in /etc/sysconfig/kernel and run initrd)? I am curious if it may be enough for what you want to do. -- Jean Delvare Suse L3 -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org