On Thu, Mar 25, 2021 at 7:26 PM Chris Murphy <lists(a)colorremedies.com> wrote:
The problem is well understood for some time.
https://lwn.net/Articles/572911/
This is an update on that 8 year old story. Last year writebehind
patches were proposed, and a discussion ensued.
https://lore.kernel.org/linux-mm/CAHk-=whf2BQ8xqVBF8YuxRznByrP-oTgcHSY9Dg...
I don't think an fsync/fdatasync centric workload is going to be
affected by these knobs. And it'd take testing to find out if they
affect anything we care about, but it's interesting that changing them
could improve real world performance while negatively impacting
synthetic benchmarking.
--
Chris Murphy