[VDO-5868] [RHEL-12834] dm vdo: rework processing of loaded refcount byte arrays #84
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Clear provisional refcount values and count free/allocated blocks in one integrated loop. Process 8 aligned bytes at a time instead of every byte individually. On an Intel i7-11850H this reduces the CPU time needed to process a loaded refcount block by a factor of about 5-6. On a large system the refcount loading may be the largest factor in device startup time. Signed-off-by: Ken Raeburn <[email protected]> Signed-off-by: Matthew Sakai <[email protected]>
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…rocessing [VDO-5868] [RHEL-12834] dm vdo: rework processing of loaded refcount byte arrays
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…rocessing [VDO-5868] [RHEL-12834] dm vdo: rework processing of loaded refcount byte arrays
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This merges commits from vdo-devel/230. Only the middle one is actually going upstream.