Re: 8aeb879baf12 - significant system call latency regression, bisected
From: Peter Zijlstra
Date: Fri Jun 19 2026 - 03:36:33 EST
On Thu, Jun 18, 2026 at 09:32:29PM -0700, H. Peter Anvin wrote:
> improvements (I spotted a couple of possibilities already, like it calling
> instrumentation_begin..._end twice.)
Unless you have DEBUG_ENTRY=y, that is a no-op. Release builds should
not have DEBUG_ENTRY methinks.