Re: [2.4] heavy-load under swap space shortage

[Nick Piggin]

Andrea Arcangeli wrote:

> I argue those scalability benefits of the locks, on a 32G machine or on
> a 1G machine those locks benefits are near zero. The only significant
> benefit is in terms of computational complexity of the normal-zone
> allocations, where we'll only walk on the zone-normal and zone-dma
> pages.

Out of interest, are there workloads on 8 and 16-way UMA systems
that have lru_lock scalability problems in 2.6? Anyone know?


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