On Thu, Mar 12, 2026 at 11:35:48PM +0800, Xuneng Zhou wrote:
> Our io_time metric currently measures only read time and ignores write
> I/O, which can be misleading. We now separate it into read_time and
> write_time.
I had a look at the pgstatindex part this morning, running my own test
under conditions similar to 6c228755add8, and here's one extract with
io_uring:
pgstatindex (100k tuples) base=32938.2ms patch=83.3ms 395.60x ( 99.7%)
(reads=2745->173, io_time=32932.09->59.75ms)
There was one issue with a declaration put in the middle of the code,
that I have fixed. This one is now done, remains 3 pieces to
evaluate.
--
Michael
