[feat.] a new tool 'overlaybd-merge' #346
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overlaybd-merge can compact an overlaybd image with multiple layers into a single layer. Signed-off-by: Yifan Yuan <tuji.yyf@alibaba-inc.com>
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To speed up zfile index loading, split a huge zfile index into multiple 1MB chunks and read them in parallel Signed-off-by: Yifan Yuan <tuji.yyf@alibaba-inc.com>
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We are providing a tool named 'overlaybd-merge' that can compact an overlaybd image with multiple layers into a single layer.
And replacing a single read for ZFile index with parallel loading.
What this PR does / why we need it:
Which issue(s) this PR fixes (optional, in
fixes #<issue number>(, fixes #<issue_number>, ...)format, will close the issue(s) when PR gets merged):Fixes #345
Please check the following list: