[PATCH 00/27] KVM PPC PV framework

Alexander Graf agraf at suse.de
Sat Jul 3 02:59:11 EST 2010


On 02.07.2010, at 18:22, Segher Boessenkool wrote:

>> [without]
>> 
>> debian-powerpc:~# time for i in {1..1000}; do /bin/echo hello > /dev/null; done
>> 
>> real    0m14.659s
>> user    0m8.967s
>> sys     0m5.688s
>> 
>> [with]
>> 
>> debian-powerpc:~# time for i in {1..1000}; do /bin/echo hello > /dev/null; done
>> 
>> real    0m7.557s
>> user    0m4.121s
>> sys     0m3.426s
>> 
>> 
>> So this is a significant performance improvement! I'm quite happy how fast this
>> whole thing becomes :)
> 
> Yeah :-)  Do you have timings for the native system as well?

Sure, same machine with openSUSE 11.1 instead of Debian that I use as guest OS usually:

agraf at lychee:~> time for i in {1..1000}; do /bin/echo hello > /dev/null; done

real	0m2.088s
user	0m0.704s
sys	0m1.460s


Alex



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