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Batch v_wire_count decrements in vm_hold_free_pages().
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Authored by markj on Jul 31 2017, 1:43 AM.
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Details

Summary

Atomic updates to v_wire_count are a significant source of contention.

Also remove an old printf in the case where one of the pages is in the
shared-busied state; vm_page_free_toq() will panic in this case anyway.

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rS FreeBSD src repository - subversion
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