dedupe and replay

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Hi,

I am playing with the dedupe option and while it works well under
synthetic tests, it doesn't seem to work when replaying a trace.

My test jobs are simple:

fio --name=replay --ioengine=libaio --direct=1 --iodepth=32
--read_iolog=/path/to/trace --dedupe_percentage=80

or

fio --name=synth --ioengine=libaio --direct=1 --iodepth=32
--dedupe_percentage=80 --rw=write


I understand that block sizes would be variable during a trace replay,
but is it possible to specify a base block size and calculate dedupe
based on that for blocks that are multiples of the base size?

Thanks,
Alket
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