Re: [PATCH 0/3 kvm-unit-tests] Dirty logging performance test

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On Sun, Jan 15, 2012 at 12:41:31PM +0900, Takuya Yoshikawa wrote:
> My 32 bit host running on an intel core i3 box said:
> 
>   $ ./api/dirty-log-perf
>   dirty-log-perf: 262144 slot pages / 262144 mem pages
>   rip 804a74a
>   rip 804a74a
>   get dirty log:      51571 ns for          1 dirty pages
>   rip 804a74a
>   get dirty log:      81190 ns for          2 dirty pages
>   rip 804a74a
>   get dirty log:      66606 ns for          4 dirty pages
>   rip 804a74a
>   get dirty log:      60408 ns for          8 dirty pages
>   rip 804a74a
>   get dirty log:      46711 ns for         16 dirty pages
>   rip 804a74a
>   get dirty log:      83563 ns for         32 dirty pages
>   rip 804a74a
>   get dirty log:      74367 ns for         64 dirty pages
>   rip 804a74a
>   get dirty log:      87240 ns for        128 dirty pages
>   rip 804a74a
>   get dirty log:     140161 ns for        256 dirty pages
>   rip 804a74a
>   get dirty log:     191288 ns for        512 dirty pages
>   rip 804a74a
>   get dirty log:     981045 ns for       1024 dirty pages
>   rip 804a74a
>   get dirty log:    1000755 ns for       2048 dirty pages
>   rip 804a74a
>   get dirty log:    1122837 ns for       4096 dirty pages
>   rip 804a74a
>   get dirty log:    1362598 ns for       8192 dirty pages
>   rip 804a74a
>   get dirty log:    1202789 ns for      16384 dirty pages
>   rip 804a74a
>   get dirty log:    1598484 ns for      32768 dirty pages
>   rip 804a74a
>   get dirty log:    2456946 ns for      65536 dirty pages
>   rip 804a74a
>   get dirty log:    3366358 ns for     131072 dirty pages
>   rip 804a74a
>   get dirty log:    5634134 ns for     262144 dirty pages
> 
> Takuya Yoshikawa (3):
>   Add dirty logging performance test
>   dirty-log-perf: Split guest memory into two slots
>   dirty-log-perf: Take slot size from command line
> 
>  api/dirty-log-perf.cc |  144 +++++++++++++++++++++++++++++++++++++++++++++++++
>  config-x86-common.mak |    5 ++-
>  2 files changed, 148 insertions(+), 1 deletions(-)
>  create mode 100644 api/dirty-log-perf.cc

Applied, thanks.

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