Messages in this thread | | | Date | Mon, 20 Nov 2023 15:33:44 +0100 | From | Peter Zijlstra <> | Subject | [PATCH 0/2] x86/entry: Trade cycles |
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Hi,
Two little patches that trade a little performance. First patch optimizes (although I couldn't get definite numbers showing it makes a difference) the return to user path by avoiding some PTI specifics in the generic path.
Second patch then steals some of the won cycles by making a debug check unconditional.
This came forth from a discussion with amluto who lamented we only had the debug check conditional on DEBUG_ENTRY.
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