On Wed, Feb 24, 2010 at 04:53:36PM +0100, Ralf Baechle wrote: > And in your benchmarking patch you wrote: > > > spin_single spin_multi > > base 106885 247941 > > spinlock_patch 75194 219465 > > I did some benchmarking on an IP27 (180MHz, 2 CPU, needs LL/SC workaround): > > spin_single spin_multi > base 229341 3505690 > spinlock_patch 177847 3615326 > > So about 22% speedup for spin_single but 3% slowdown for spin_multi. > > Disabling the R10k LL/SC workaround btw. gives another 23% speedup for > spin_single and marginal 0.3% for spin_multi; the latter may well be > statistical noise. And I forgot the most important - patch queued for 2.6.34. Thanks! Ralf
