mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-09-09 00:39:25 +02:00
4bc0f165cb
While beneficial, both for throughput and average/worst case latency, in
a significant number of workloads, there are other workloads in which
backend_flush_after can cause significant performance regressions in
comparison to < 9.6 releases. The regression is most likely when the hot
data set is bigger than shared buffers, but significantly smaller than
the operating system's page cache.
I personally think that the benefit of enabling backend flush control is
considerably bigger than the potential downsides, but a fair argument
can be made that not regressing is more important than improving
performance/latency. As the latter is the consensus, change the default
to 0.
The other settings introduced in
|
||
---|---|---|
.. | ||
access | ||
bootstrap | ||
catalog | ||
commands | ||
executor | ||
foreign | ||
lib | ||
libpq | ||
main | ||
nodes | ||
optimizer | ||
parser | ||
po | ||
port | ||
postmaster | ||
regex | ||
replication | ||
rewrite | ||
snowball | ||
storage | ||
tcop | ||
tsearch | ||
utils | ||
.gitignore | ||
common.mk | ||
Makefile | ||
nls.mk |