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SubjectRe: No, really, stop trying to delete slab until you've finished making slub perform as well

> Could you address the performance issues in different ways? F.e. try to free
> when the object is hot or free from multiple processors? SLAB has to take the
> list_lock rather frequently under high concurrent loads (depends on queue
> size). That will not occur with SLUB. So you actually can free (and allocate)
> concurrently with high performance.

just information. (offtopic?)

When hackbench running, SLUB consume memory very largely than SLAB.
then, SLAB often outperform SLUB in memory stavation state.

I don't know why memory comsumption different.
Anyone know it?

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