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Message-Id: <200710152236.24789.nickpiggin@yahoo.com.au> Date: Mon, 15 Oct 2007 22:36:24 +1000 From: Nick Piggin <nickpiggin@...oo.com.au> To: "Alok kataria" <alokkataria1@...il.com> Cc: "Andi Kleen" <ak@...e.de>, hugh@...itas.com, linux-kernel@...r.kernel.org Subject: Re: ARCH_FREE_PTE_NR 5350 on x86_64 On Monday 15 October 2007 16:54, Alok kataria wrote: > Hi, > > Looking at the tlb_flush code path and its co-relation with > ARCH_FREE_PTE_NR, on x86-64 architecture. I think we still don't use > the ARCH_FREE_PTE_NR of 5350 as the caching value for the mmu_gathers > structure, instead fallback to using 506 due to some typo errors in > the code. > > Found this link in the archives. > > http://www.ussg.iu.edu/hypermail/linux/kernel/0509.1/1821.html > > I don't think anything has been done on this yet (looked at 2.6.23). > Do let me know if its only a typo that needs a fix, or we are still > waiting for some other other changes to come into effect. ARCH_FREE_PTE_NR should probably just get ripped out completely at this point. Something similar (but working) could be added back if anybody actually had a workload where it helps to increase the mmu batch size. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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