On Fri, 13 Feb 2015, Joonsoo Kim wrote: > > + *p++ = freelist; > > + freelist = get_freepointer(s, freelist); > > + allocated++; > > + } > > Fetching all objects with holding node lock could result in enomourous > lock contention. How about getting free ojbect pointer without holding > the node lock? We can temporarilly store all head of freelists in > array p and can fetch each object pointer without holding node lock.
Could do that but lets first see if there is really an issue. The other cpu sharing the same partial lists presumaly have cpu local objects to get through first before they hit this lock. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
