2.6.31.12-0.2-default is a kernel. The 2.6.31.12-0.2-default has been tested via the Phoronix Test Suite in the configurations listed below.
prova1 - Tests on SUSE LINUX 11.2, Intel Pentium 4 3.20GHz, Intel 82865G IGP, Intel
mfloeer-23364-6471-29947 - Tests on SUSE LINUX 11.2, AMD Turion 64 X2 Mobile TL-60, ATI RS482, HP 30B0
video-ext-test - Tests on SUSE LINUX 11.2, Intel Core 2 T7200, InnoTek VirtualBox, innotek VirtualBox
openssl-test - Tests on SUSE LINUX 11.2, Intel Core 2 T7200, InnoTek VirtualBox, innotek VirtualBox
aio-stress-test - Tests on SUSE LINUX 11.2, Intel Core 2 T7200, InnoTek VirtualBox, innotek VirtualBox
gziptest - Tests on SUSE LINUX 11.2, Intel Core 2 T7200, InnoTek VirtualBox, innotek VirtualBox
7ziptest - Tests on SUSE LINUX 11.2, Intel Core 2 T7200, InnoTek VirtualBox, innotek VirtualBox
oggtest - Tests on SUSE LINUX 11.2, Intel Core 2 T7200, InnoTek VirtualBox, innotek VirtualBox
mp3test - Tests on SUSE LINUX 11.2, Intel Core 2 T7200, InnoTek VirtualBox, innotek VirtualBox
ffmpegres - Tests on SUSE LINUX 11.2, Intel Core 2 T7200, InnoTek VirtualBox, innotek VirtualBox
run1 - Tests on SUSE LINUX 11.2, AMD Athlon XP 2600, ATI RV350 AR, MSI LTD MS-6570
rorro - Tests on SUSE LINUX 11.2, AMD Athlon XP, GeForce 6200, ASUS A7V266-C
anon-25403-30293-13133 - Tests on SUSE LINUX 11.2, AMD Phenom II X4 B50, ATI Radeon HD 4800, ASRock A780GXH