[Ocfs2-devel] du_enhancement v3

[jeff.liu <jeff.liu@oracle.com>]

jeff.liu wrote:
> Hello,
> 
> The following is the v3 patchset for du enhancement.
> 
> The bugs fixed according to Tao's comments.
> 
> For now, I faced with another problem need your guys help confirm:
> I skipped the inline file processing which its data mixed with metadata.
> IMHO, it has pretty minor effect for the precise measurement of footprint, as a result,
> the rebree process overhead is unworthy for inline file.
> 
> Any thoughts or suggestions for this case?
> 
> 
> I run a few simple testing, it works:
> 
>>>> 1542 - 1 - 21 - 99 - 512 - 105 - 5
> 799
> jeff at jeff-laptop:/shared-du  -E -m -c /ocfs2/*
> 0	/ocfs2/lost+found
> 1	/ocfs2/reflink
> 1	(1)	/ocfs2/test1
> 1	(1)	/ocfs2/test1r
> 21	(21)	/ocfs2/test2
> 21	(21)	/ocfs2/test2r
> 99	(99)	/ocfs2/test3
> 99	(99)	/ocfs2/test3r
> 40	/ocfs2/test4
> 22	(22)	/ocfs2/test4r
> 512	(512)	/ocfs2/test5
> 512	(512)	/ocfs2/test5r
> 105	(105)	/ocfs2/test6
> 105	(105)	/ocfs2/test6r
> 0	/ocfs2/test7
> 0	/ocfs2/test7r
> 5	(5)	/ocfs2/test8
> 0	(5)	/ocfs2/test8r
> 1542	total
> 799	footprint
> 
>>>> 1578232 - 5120 - 107520 - 524288 - 101376 - 1024 - 21504
> 817400
> jeff at jeff-laptop:./shared-du  -E -k -c /ocfs2/*
> 0	/ocfs2/lost+found
> 88	/ocfs2/reflink
> 1024	(1024)	/ocfs2/test1
> 1024	(1024)	/ocfs2/test1r
> 21504	(21504)	/ocfs2/test2
> 21504	(21504)	/ocfs2/test2r
> 101376	(101376)	/ocfs2/test3
> 101376	(101376)	/ocfs2/test3r
> 40092	/ocfs2/test4
> 21508	(21508)	/ocfs2/test4r
> 524288	(524288)	/ocfs2/test5
> 524288	(524288)	/ocfs2/test5r
> 107520	(107520)	/ocfs2/test6
> 107520	(107520)	/ocfs2/test6r
> 0	/ocfs2/test7
> 0	/ocfs2/test7r
> 5120	(5120)	/ocfs2/test8
> 0	(5120)	/ocfs2/test8r
> 1578232	total
> 817400	footprint
> 
>>>> 1621360142 - 5242880 - 110100480 - 536870912 - 103809024 - 22020096 - 1048576
> 842268174
> jeff at jeff-laptop:./shared-du  -E -b -c /ocfs2/*
> 3896	/ocfs2/bind_mount
> 3896	/ocfs2/lost+found
> 86414	/ocfs2/reflink
> 1048576	(1048576)	/ocfs2/test1
> 1048576	(1048576)	/ocfs2/test1r
> 22020096	(22020096)	/ocfs2/test2
> 22020096	(22020096)	/ocfs2/test2r
> 103809024	(103809024)	/ocfs2/test3
> 103809024	(103809024)	/ocfs2/test3r
> 41054208	/ocfs2/test4
> 22024192	(22024192)	/ocfs2/test4r
> 536870912	(536870912)	/ocfs2/test5
> 536870912	(536870912)	/ocfs2/test5r
> 110100480	(110100480)	/ocfs2/test6
> 110100480	(110100480)	/ocfs2/test6r
> 1800	/ocfs2/test7                             <<< inline file
> 1800	/ocfs2/test7r
for the inline file, maybe a better way is show its shared size as well, it is straightforward, but
bypass split_extent() operation?

> 5242880	(5242880)	/ocfs2/test8
> 5242880	(5242880)	/ocfs2/test8r
> 1621360142	total
> 842268174	footprint
> 
> 
> 
> Please review, any comments are appreciated!
> 
> Thanks,
> -Jeff
> 
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