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cxl-micron-reskit / famfs

This is the user space repo for famfs, the fabric-attached memory file system
Apache License 2.0
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Bitmap performance issues in finding continuous memory space #68

Closed leeq2016 closed 3 months ago

leeq2016 commented 3 months ago

When FAMFS_ALLOC_UNIT is adjusted to 4K, bitmap search becomes a bottleneck when famfs cp copies a large number of files.

perf log:

jagalactic commented 3 months ago

Merged fix in PR #69

This won't be the last allocator performance work we do, but it helps.