Benjamin Herrenschmidt <[email protected]> writes: > On Wed, 2017-02-01 at 09:05 -0800, Eric Dumazet wrote: >> Hi all >> >> Is anybody working on adding QUEUED spinlocks to powerpc 64bit ? >> >> I've seen past attempts with ticket spinlocks >> ( https://patchwork.ozlabs.org/patch/449381/ and other related links >> ) >> >> But it looks ticket spinlocks are a thing of the past. > > Yes, we have a tentative implementation of qspinlock and pv variants: > > https://patchwork.ozlabs.org/patch/703139/ > https://patchwork.ozlabs.org/patch/703140/ > https://patchwork.ozlabs.org/patch/703141/ > https://patchwork.ozlabs.org/patch/703142/ > https://patchwork.ozlabs.org/patch/703143/ > https://patchwork.ozlabs.org/patch/703144/ > > Michael, what's the status with getting that merged ?
Needs a good review, and the benchmark results were not all that compelling - though perhaps they were just the wrong benchmarks. cheers
