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by aftbit 72 days ago
>If this somehow does end up being a reproducible performance issue (I still suspect something more complicated is going on), I don't see how userspace could be expected to mitigate a substantial perf regression in 7.0 that can only be mitigated by a default-off non-trivial functionality also introduced in 7.0.
1 comments

They said the magic words to get Linus to start flipping tables. Never break userspace. Unusably slow is broken