On Tue, 2 Jul 2013, Wanpeng Li wrote: > Before patch: > Active / Total Slabs (% used) : 59018 / 59018 (100.0%) > > After patch: > Active / Total Slabs (% used) : 11086 / 11153 (99.4%)
Yes I saw that. > These numbers are dump from slabtop for monitor slub, before patch Active / > Total > Slabs are always 100%, this is not truth since empty slabs present. However, > the > slab allocator can caculate its Active / Total Slabs correctly and its value > is > less than 100.0%. By comparison, slub is more efficient than slab through > slabtop > observation, however, it is not truth since slub uncorrectly calculate its > Active / Total Slabs. I always thought about the "empty" slabs to be active since they are used for allocation and frees like the other partial slabs. -- 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/
