b086e32c63
Much of the memory bloat turned out to be due to getKeysReferenced containing a mapM, which is strict and buffered the whole list rather than streaming it. The other half of the bloat was due to building a temporary Set in order to call S.difference. While that is more cpu efficient, I switched to successive S.delete, since with it, I can run a whole git annex unused in less than 8 mb of memory. The whole Set of keys with content available is still stored in memory, so running unused in a repo with a whole lot of file content will still use more memory. In a repo containing 6000 files, it needed 40 mb. Note that the status command still uses the bloatful getKeysReferenced. |
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