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| author | Alexey Kardashevskiy | 2017-09-21 10:51:09 +0200 |
|---|---|---|
| committer | Paolo Bonzini | 2017-09-22 01:06:51 +0200 |
| commit | 202fc01b05572ecb258fdf4c5bd56cf6de8140c7 (patch) | |
| tree | a4e8c4a88e07754d9f3541e67ca3d6f666ed556b /include/exec/memory.h | |
| parent | memory: Get rid of address_space_init_shareable (diff) | |
| download | qemu-202fc01b05572ecb258fdf4c5bd56cf6de8140c7.tar.gz qemu-202fc01b05572ecb258fdf4c5bd56cf6de8140c7.tar.xz qemu-202fc01b05572ecb258fdf4c5bd56cf6de8140c7.zip | |
memory: Create FlatView directly
This avoids usual memory_region_transaction_commit() which rebuilds
all FVs.
On POWER8 with 255 CPUs, 255 virtio-net, 40 PCI bridges guest this brings
down the boot time from 25s to 20s and reduces the amount of temporary FVs
allocated during machine constructon (~800000 -> ~640000) and amount of
temporary dispatch trees (~370000 -> ~300000), the total memory footprint
goes down (18G -> 17G).
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20170921085110.25598-18-aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/exec/memory.h')
0 files changed, 0 insertions, 0 deletions