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bees: deprecate vector<uint8_t> and replace with ByteVector

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The vector<uint8_t> in the hash table doesn't hurt very much--only a few
microseconds per 128K hash block.

The vector<uint8_t> in BeesBlockData hurts a bit more--we run that
constructor thousands of times per second.

Signed-off-by: Zygo Blaxell <bees@furryterror.org>
This commit is contained in:
Zygo Blaxell 2021-10-12 12:04:25 -04:00
parent 99709d889f
commit 14cd6ed033
2 changed files with 2 additions and 2 deletions
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2
src/bees-hash.cc
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@ -123,7 +123,7 @@ BeesHashTable::flush_dirty_extent(uint64_t extent_index)
THROW_CHECK2(out_of_range, dirty_extent_end, dirty_extent, dirty_extent_end - dirty_extent == BLOCK_SIZE_HASHTAB_EXTENT);
BEESTOOLONG("pwrite(fd " << m_fd << " '" << name_fd(m_fd)<< "', length " << to_hex(dirty_extent_end - dirty_extent) << ", offset " << to_hex(dirty_extent - m_byte_ptr) << ")");
// Copy the extent because we might be stuck writing for a while
vector<uint8_t> extent_copy(dirty_extent, dirty_extent_end);
ByteVector extent_copy(dirty_extent, dirty_extent_end);
// Mark extent non-dirty while we still hold the lock
m_extent_metadata.at(extent_index).m_dirty = false;

2
src/bees.h
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@ -633,7 +633,7 @@ private:
ostream & operator<<(ostream &os, const BeesHash &bh);
class BeesBlockData {
using Blob = vector<uint8_t>;
using Blob = ByteVector;
mutable Fd m_fd;
off_t m_offset;