Messages in this thread | | | Subject | Re: [RFC][PATCH] Check write to slab memory which freed already using mudflap | From | Pekka Enberg <> | Date | Fri, 10 Jul 2009 12:19:08 +0300 |
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Hi David,
On Fri, 10 Jul 2009, Ingo Molnar wrote: > > > SLAB is (slowly) going away so you might want to port this to SLUB > > > as well so we can merge both. > > > > and SLQB which will replace both? :-/
On Fri, 2009-07-10 at 02:04 -0700, David Rientjes wrote: > I'm not sure what the status of slqb is, although I would have expected it > to have been pushed for inclusion in 2.6.31 as a slab allocator > alternative. Nick, any forecast for inclusion?
2.6.32 most likely. Nick has fixed a bunch of problems but there's still one ppc boot time bug that's turning out to be hard to find.
On Fri, 2009-07-10 at 02:04 -0700, David Rientjes wrote: > SLUB has a pretty noticeable performance degradation on benchmarks such as > netperf TCP_RR with high numbers of threads (see my post about it: > http://marc.info/?l=linux-kernel&m=123839191416472). CONFIG_SLAB is the > optimal configuration for workloads that share similiar slab thrashing > patterns (which my patchset dealt with in an indirect way and yet still > didn't match slab's performance). I haven't yet seen data that suggests > anything other than CONFIG_SLAB has parity with such a benchmark.
As I said before, I'm interesting in getting those patches merged. I think Christoph raised some issues that need to be take care of before we can do that, no?
Pekka
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