Hi,
this patch series optimizes some I/O patterns that the reftable library
uses:
- Establish a stat(3P)-based caching mechanism to avoid re-reading
"tables.list" all the time.
- Convert the block source to use mmap(3P) instead of read(3P) to read
data.
Combined these lead to a ~2.7x speedup when writing many refs.
Patrick
Patrick Steinhardt (4):
reftable/stack: refactor stack reloading to have common exit path
reftable/stack: refactor reloading to use file descriptor
reftable/stack: use stat info to avoid re-reading stack list
reftable/blocksource: use mmap to read tables
reftable/blocksource.c | 48 +++++++++++++-----
reftable/stack.c | 111 ++++++++++++++++++++++++-----------------
reftable/stack.h | 1 +
reftable/system.h | 1 +
4 files changed, 103 insertions(+), 58 deletions(-)
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2.43.GIT
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