Re: [PATCH 01/12] mm/huge_memory: zap deposited page tables after an RCU grace period
From: "Liam R. Howlett" <liam@infradead.org>
Date: 2026-09-01 17:48:13
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On 26/09/01 06:13PM, Kiryl Shutsemau wrote:
On Tue, Sep 01, 2026 at 11:54:47AM -0400, Liam R. Howlett wrote:quoted
Do you have munmap() performance dependent workload that you are concerned about regressing?exit(2) path is performance critical for many workloads. Like, if you need to restart VM.
That is not enough to see any impact, although less overall work would be done during the exit call. It would be very difficult to come up with a scenario that this would have a measurable difference and an even harder time to come up with one that is slower.