Re: [PATCH v2] perf lock contention: Add -J/--inject-delay option
From: Arnaldo Carvalho de Melo
Date: Fri May 09 2025 - 16:15:47 EST
On Fri, May 09, 2025 at 10:19:50AM -0700, Namhyung Kim wrote:
> This is to slow down lock acquistion (on contention locks) deliberately.
> A possible use case is to estimate impact on application performance by
> optimization of kernel locking behavior. By delaying the lock it can
> simulate the worse condition as a control group, and then compare with
> the current behavior as a optimized condition.
Thanks, tested and applied.
- Arnaldo