You can't, unless you compile it from linux-next, 6.17 hasn't been merged yet.

Ads today are less malicious

I disagree, ads today are way more malicious than they used to be, ads are the biggest vector for malware today, they are used to stalk users to an insane level and most ads are porn, gambling, drugs or fascist propaganda.

At least back in the day you would only get sketchy ads on sketchy websites.

Servers are like 90% Linux.

GPU limited is 1440p highest preset available, CPU limited is 1080p lowest preset available.

Fsync hasn't been dropped from the kernel, 6.15 still supports it, this test was done on 6.15.

just skipped around through some of the CPU-limited sections since I imagine that's the only part that matters.

Yeah, pretty much, I included both for the sake of it.

In any case, it seems like there's not much to gain from using NTSYNC yet; maybe improvements will be made to at least tie FSYNC. My rudimentary (possibly incorrect) understanding is that FSYNC is hacky and that NTSYNC is the "correct" way to do it, so if nothing else getting NTSYNC to tie FSYNC means FSYNC can be deprecated at least.

It might be better in the future, but it's not there yet, the implementation is not even finished to be fair.

This took a while https://www.youtube.com/watch?v=hjvw7UDh9YY, no performance boost on cyberpunk for me.

I did a very quick and dirty test here and it appears to be still slower than fsync by about 10 ~ 12%, I'll test it better later.

Brasil, the name comes from Pau Brasil, a tree that has a deep red color, used to make dye and for its quite beautiful red wood. The word Brasil comes from brasa (ember), essentially means "tree that's red like an ember".