On 12/27/2012 02:08 PM, Michael Wang wrote:
> This patch set is trying to simplify the select_task_rq_fair() with
> schedule balance map.
> 
> After get rid of the complex code and reorganize the logical, pgbench show
> the improvement.
> 
>       Prev:
>               | db_size | clients |  tps  |
>               +---------+---------+-------+
>               | 22 MB   |       1 |  4437 |
>               | 22 MB   |      16 | 51351 |
>               | 22 MB   |      32 | 49959 |
>               | 7484 MB |       1 |  4078 |
>               | 7484 MB |      16 | 44681 |
>               | 7484 MB |      32 | 42463 |
>               | 15 GB   |       1 |  3992 |
>               | 15 GB   |      16 | 44107 |
>               | 15 GB   |      32 | 41797 |
> 
>       Post:
>               | db_size | clients |  tps  |
>               +---------+---------+-------+
>               | 22 MB   |       1 | 11053 |           +149.11%
>               | 22 MB   |      16 | 55671 |           +8.41%
>               | 22 MB   |      32 | 52596 |           +5.28%
>               | 7483 MB |       1 |  8180 |           +100.59%
>               | 7483 MB |      16 | 48392 |           +8.31%
>               | 7483 MB |      32 | 44185 |           +0.18%
>               | 15 GB   |       1 |  8127 |           +103.58%
>               | 15 GB   |      16 | 48156 |           +9.18%
>               | 15 GB   |      32 | 43387 |           +3.8%
> 
> Please check the patch for more details about schedule balance map, they
> currently based on linux-next 3.7.0-rc6, will rebase them to tip tree in
> follow version.
> 
> Comments are very welcomed.

Could I get some comments for this patch set?

Regards,
Michael Wang

> 
> Test with:
>       12 cpu X86 server and linux-next 3.7.0-rc6.
> 
> Michael Wang (2):
>       [PATCH 1/2] sched: schedule balance map foundation
>       [PATCH 2/2] sched: simplify select_task_rq_fair() with schedule balance 
> map
> 
> Signed-off-by: Michael Wang <wang...@linux.vnet.ibm.com>
> ---
>  core.c  |   61 +++++++++++++++++++++++++++++
>  fair.c  |  133 
> +++++++++++++++++++++++++++++++++-------------------------------
>  sched.h |   28 +++++++++++++
>  3 files changed, 159 insertions(+), 63 deletions(-)
> 

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