On 4/4/16, Peter Zijlstra <pet...@infradead.org> wrote: > On Mon, Apr 04, 2016 at 05:31:40PM +0200, Sedat Dilek wrote: >> > +/* https://en.wikipedia.org/wiki/Xorshift#xorshift.2A */ >> > +#define UINT64_C(x) x##ULL >> > +static inline u64 xorshift64star(u64 x) >> > +{ >> > + x ^= x >> 12; // a >> > + x ^= x << 25; // b >> > + x ^= x >> 27; // c >> > + return x * UINT64_C(2685821657736338717); >> > +} > >> Will you push that also to peterz/queue.git#locking/urgent? > > Only after I've had a play and observed it making any difference; Dmitry > supposedly has a reproducer, but I've not yet had a moment to try. >
Hi Peter, any news on that stuff? How can someone test this? How did Dmitry reproduce? Regards, - Sedat -
