[PATCH V5 0/5] makedumpfile: --split: assign fair I/O workloads in appropriate time

[Atsushi Kumagai]

Hello Zhou,

>v4->v5:
>	1.fix the bug that last end_pfn can be shorter than the max_mapnr

Looks good to me, thanks for all your work !
I'll merge this version into v1.5.8.


Thanks,
Atsushi Kumagai

>v3->v4:
>	1.address Atsushi Kumagai's comments about using divideup
>
>v2->v3:
>	1.remove the filtering for incomplete block (previous second pass) and adjust
>	  relevant codes
>	2.address HATAYAMA's comments about coding style
>
>v1->v2:
>	1.use splitblock instead of block
>	2.add restriction (align to the page size) to splitblock size
>	3.adjust the position of prepare_splitblock_table and check the return code
>	4.use --splitblock-size to specify splitblock size and modify the print_info.c
>
>the v2 test result is:
>
>	cyc-buf	128		256		512		1024		2048		4096
>splblk-size
>2M		24.05(0.65)	24.04(0.65)	24.58(0.65)	24.15(0.64)	24.14(0.64)	49.05(25.46)
>4M		23.98(0.65)	24.01(0.65)	24.29(0.65)	24.20(0.64)	24.18(0.66)	49.04(25.46)
>8M		24.02(0.65)	24.03(0.65)	24.25(0.65)	24.26(0.70)	24.15(0.64)	48.98(25.44)
>16M		24.01(0.65)	24.01(0.65)	24.30(0.65)	24.19(0.64)	24.12(0.65)	48.99(25.45)
>32M		23.97(0.65)	24.06(0.73)	24.23(0.65)	24.17(0.64)	24.19(0.64)	48.97(25.50)
>64M		24.06(0.66)	24.07(0.66)	24.27(0.66)	24.16(0.65)	24.17(0.65)	48.98(25.49)
>128M		24.03(0.67)	24.00(0.67)	24.27(0.66)	24.22(0.66)	24.19(0.66)	48.98(25.48)
>256M		24.12(0.67)	23.99(0.67)	24.27(0.67)	24.17(0.66)	24.12(0.66)	49.04(25.49)
>512M		24.06(0.70)	24.08(0.70)	24.26(0.70)	24.14(0.71)	24.19(0.70)	49.13(25.64)
>1G		24.20(0.82)	24.13(0.81)	24.36(0.81)	24.31(0.80)	24.33(0.81)	49.28(25.75)
>2G		24.19(0.81)	24.22(0.81)	24.37(0.81)	24.29(0.80)	24.28(0.82)	49.30(25.78)
>4G		25.29(1.90)	25.26(1.91)	25.49(1.91)	25.41(1.89)	25.50(1.90)	49.99(26.45)
>8G		25.33(1.90)	26.60(3.23)	26.87(3.21)	26.71(3.23)	26.64(3.22)	51.27(27.73)
>16G		25.28(1.90)	26.52(3.21)	29.47(5.86)	29.34(5.84)	29.38(5.86)	53.99(30.40)
>
>
>the latest test result turns to:
>
>	cyc-buf	128		256		512		1024		2048		4096
>splblk-size
>2M		23.34(0.00)	23.36(0.00)	23.51(0.00)	23.86(0.00)	23.48(0.00)	23.45(0.00)
>4M		23.36(0.00)	23.32(0.00)	23.62(0.00)	23.48(0.00)	23.53(0.00)	23.45(0.00)
>8M		23.33(0.00)	23.46(0.00)	23.61(0.00)	23.77(0.00)	23.52(0.00)	23.53(0.00)
>16M		23.33(0.00)	23.38(0.00)	23.57(0.00)	23.47(0.00)	23.55(0.00)	23.49(0.00)
>32M		23.40(0.00)	23.31(0.00)	23.64(0.00)	23.51(0.00)	23.50(0.00)	23.55(0.00)
>64M		23.39(0.00)	23.41(0.00)	23.62(0.00)	23.47(0.00)	23.46(0.00)	23.50(0.00)
>128M		23.36(0.00)	23.34(0.00)	23.59(0.00)	23.46(0.00)	23.46(0.00)	23.50(0.00)
>256M		23.32(0.00)	23.36(0.00)	23.57(0.00)	23.49(0.00)	23.45(0.00)	23.52(0.00)
>512M		23.32(0.00)	23.32(0.00)	23.63(0.00)	23.49(0.00)	23.52(0.00)	23.51(0.00)
>1G		23.38(0.00)	23.32(0.00)	23.60(0.00)	23.54(0.00)	23.49(0.00)	23.54(0.00)
>2G		23.34(0.00)	23.36(0.00)	23.62(0.00)	23.52(0.00)	23.52(0.00)	23.50(0.00)
>4G		23.36(0.00)	23.37(0.00)	23.60(0.00)	23.48(0.00)	23.56(0.00)	23.55(0.00)
>8G		23.37(0.00)	23.39(0.00)	23.52(0.00)	23.53(0.00)	23.46(0.00)	23.48(0.00)
>16G		23.39(0.00)	23.41(0.00)	23.85(0.00)	23.48(0.00)	23.50(0.00)	23.45(0.00)
>
>
>
>Zhou Wenjian (5):
>  Add support for splitblock
>  Add tools for reading and writing from splitblock table
>  Add module of generating table
>  Add module of calculating start_pfn and end_pfn in each dumpfile
>  Add support for --splitblock-size
>
> makedumpfile.8 |   10 +++
> makedumpfile.c |  245 ++++++++++++++++++++++++++++++++++++++++++++++++++++++--
> makedumpfile.h |   19 +++++
> print_info.c   |    5 +
> 4 files changed, 273 insertions(+), 6 deletions(-)
>
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