early stepping K6-2s did not have an MTRR. later steppings do (i believe
stepping 8 was the first one to have an MTRR... but i can't say for
certain):
my cpu:
processor : 0
vendor_id : AuthenticAMD
cpu family : 5
model : 8
model name : AMD-K6(tm) 3D processor
stepping : 0
cpu MHz : 300.689223
fdiv_bug : no
hlt_bug : no
sep_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr mce cx8 sep mmx 3dnow
bogomips : 599.65
this guy's http://www.tux.org/hypermail/linux-kernel/1999week21/0052.html
cpu:
processor : 0
vendor_id : AuthenticAMD
cpu family : 5
model : 8
model name : AMD-K6(tm) 3D processor
stepping : 12
cpu MHz : 350.810582
fdiv_bug : no
hlt_bug : no
sep_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr mce cx8 sep mtrr pge mmx 3dnow
bogomips : 699.60
James Manning wrote:
> MTRR could certainly be another source of additional performance, but I
> haven't dealt with the K6-2 in any capacity so I don't even know whether
> it has that capability (although I haven't personally heard of anything
> not based on the P6 core using MTRR.
