From: Dave Hansen <dave@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: kvm@vger.kernel.org, Dave Hansen <dave@linux.vnet.ibm.com>
Subject: [RFC][PATCH 0/9] rework KVM mmu_shrink() code
Date: Tue, 15 Jun 2010 06:55:18 -0700 [thread overview]
Message-ID: <20100615135518.BC244431@kernel.beaverton.ibm.com> (raw)
This is a big RFC for the moment. These need a bunch more
runtime testing.
--
We've seen contention in the mmu_shrink() function. This patch
set reworks it to hopefully be more scalable to large numbers
of CPUs, as well as large numbers of running VMs.
The patches are ordered with increasing invasiveness.
These seem to boot and run fine. I'm running about 40 VMs at
once, while doing "echo 3 > /proc/sys/vm/drop_caches", and
killing/restarting VMs constantly.
Seems to be relatively stable, and seems to keep the numbers
of kvm_mmu_page_header objects down.
next reply other threads:[~2010-06-15 13:55 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-15 13:55 Dave Hansen [this message]
2010-06-15 13:55 ` [RFC][PATCH 1/9] abstract kvm x86 mmu->n_free_mmu_pages Dave Hansen
2010-06-16 8:40 ` Avi Kivity
2010-06-15 13:55 ` [RFC][PATCH 2/9] rename x86 kvm->arch.n_alloc_mmu_pages Dave Hansen
2010-06-15 13:55 ` [RFC][PATCH 3/9] replace x86 kvm n_free_mmu_pages with n_used_mmu_pages Dave Hansen
2010-06-16 14:25 ` Marcelo Tosatti
2010-06-16 15:42 ` Dave Hansen
2010-06-15 13:55 ` [RFC][PATCH 4/9] create aggregate kvm_total_used_mmu_pages value Dave Hansen
2010-06-16 8:48 ` Avi Kivity
2010-06-16 15:06 ` Dave Hansen
2010-06-17 8:43 ` Avi Kivity
2010-06-16 16:55 ` Dave Hansen
2010-06-17 8:23 ` Avi Kivity
2010-06-15 13:55 ` [RFC][PATCH 5/9] break out some mmu_skrink() code Dave Hansen
2010-06-15 13:55 ` [RFC][PATCH 6/9] remove kvm_freed variable Dave Hansen
2010-06-15 13:55 ` [RFC][PATCH 7/9] make kvm_get_kvm() more robust Dave Hansen
2010-06-15 13:55 ` [RFC][PATCH 8/9] reduce kvm_lock hold times in mmu_skrink() Dave Hansen
2010-06-16 8:54 ` Avi Kivity
2010-06-15 13:55 ` [RFC][PATCH 9/9] make kvm mmu shrinker more aggressive Dave Hansen
2010-06-16 9:24 ` Avi Kivity
2010-06-16 15:25 ` Dave Hansen
2010-06-17 8:37 ` Avi Kivity
2010-06-18 15:49 ` Dave Hansen
2010-06-20 8:11 ` Avi Kivity
2010-06-22 16:32 ` Dave Hansen
2010-07-22 4:36 ` Avi Kivity
2010-07-22 5:36 ` Dave Hansen
2010-07-22 5:42 ` Avi Kivity
2010-06-16 8:38 ` [RFC][PATCH 0/9] rework KVM mmu_shrink() code Avi Kivity
2010-06-16 15:03 ` Dave Hansen
2010-06-17 8:40 ` Avi Kivity
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