From: Peter Xu <peterx@redhat.com>
To: qemu-devel@nongnu.org
Cc: Juraj Marcin <jmarcin@redhat.com>,
peterx@redhat.com, Prasad Pandit <ppandit@redhat.com>,
Julia Suvorova <jusual@redhat.com>,
David Hildenbrand <david@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Fabiano Rosas <farosas@suse.de>,
Vitaly Kuznetsov <vkuznets@redhat.com>
Subject: [PATCH 0/4] KVM: Dynamic sized memslots array
Date: Wed, 4 Sep 2024 15:16:31 -0400 [thread overview]
Message-ID: <20240904191635.3045606-1-peterx@redhat.com> (raw)
This series make KVM memslots to be allocated dynamically in QEMU. It
fixes a migration performance regression that I observed, reducing precopy
dirty sync process from ~86ms to ~3ms each time.
Patch 1,2,4 are mostly small cleanups, the major fix is in patch 3.
Thanks,
Peter Xu (4):
KVM: Rename KVMState->nr_slots to nr_slots_max
KVM: Define KVM_MEMSLOTS_NUM_MAX_DEFAULT
KVM: Dynamic sized kvm memslots array
KVM: Rename KVMMemoryListener.nr_used_slots to nr_slots_used
include/sysemu/kvm_int.h | 7 +--
accel/kvm/kvm-all.c | 106 ++++++++++++++++++++++++++++++---------
accel/kvm/trace-events | 1 +
3 files changed, 88 insertions(+), 26 deletions(-)
--
2.45.0
next reply other threads:[~2024-09-04 19:17 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-04 19:16 Peter Xu [this message]
2024-09-04 19:16 ` [PATCH 1/4] KVM: Rename KVMState->nr_slots to nr_slots_max Peter Xu
2024-09-04 20:36 ` David Hildenbrand
2024-09-04 19:16 ` [PATCH 2/4] KVM: Define KVM_MEMSLOTS_NUM_MAX_DEFAULT Peter Xu
2024-09-04 20:39 ` David Hildenbrand
2024-09-04 20:56 ` Peter Xu
2024-09-04 19:16 ` [PATCH 3/4] KVM: Dynamic sized kvm memslots array Peter Xu
2024-09-04 20:43 ` David Hildenbrand
2024-09-04 20:51 ` David Hildenbrand
2024-09-04 20:55 ` Peter Xu
2024-09-04 21:07 ` David Hildenbrand
2024-09-04 21:20 ` Peter Xu
2024-09-04 21:23 ` David Hildenbrand
2024-09-04 21:34 ` Peter Xu
2024-09-04 21:38 ` David Hildenbrand
2024-09-04 21:46 ` Peter Xu
2024-09-04 21:58 ` Peter Xu
2024-09-04 19:16 ` [PATCH 4/4] KVM: Rename KVMMemoryListener.nr_used_slots to nr_slots_used Peter Xu
2024-09-04 20:40 ` David Hildenbrand
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