On 12/4/25 18:59, Thomas Munro wrote:
It's hard to know how to set io_workers=3.
Hmmm.... enable the below behaviour if "io_workers=auto" (default) ?
Sometimes being able to set this kind of parameters manually helps
tremendously with specific workloads... :S
[snip]
Here's a patch to replace that GUC with:
io_min_workers=1
io_max_workers=8
io_worker_idle_timeout=60s
io_worker_launch_interval=500ms
Great as defaults / backwards compat with io_workers=auto. Sounds more
user-friendly to me, at least....
[snip]
Ideas, testing, flames etc welcome.
Logic seems sound, if a bit daunting for inexperienced users --- well,
maybe just a bit more than it is now, but ISTM evolution should try and
flatten novices' learning curve, right?
Just .02€, though.
Thanks,
--
Parkinson's Law: Work expands to fill the time alloted to it.
