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| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2017-09-21 18:51:09 +1000 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-09-22 01:06:51 +0200 |
| commit | 202fc01b05572ecb258fdf4c5bd56cf6de8140c7 (patch) | |
| tree | a4e8c4a88e07754d9f3541e67ca3d6f666ed556b /include/qemu/typedefs.h | |
| parent | b516572f31c0ea0937cd9d11d9bd72dd83809886 (diff) | |
| download | focaccia-qemu-202fc01b05572ecb258fdf4c5bd56cf6de8140c7.tar.gz focaccia-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/qemu/typedefs.h')
0 files changed, 0 insertions, 0 deletions