Re: [Libguestfs] [PATCH libnbd 7/9] golang: aio_buffer.go: Speed up FromBytes()
On Sun, Jan 30, 2022 at 01:33:35AM +0200, Nir Soffer wrote:
Using Slice() we can use builtin copy() instead of a manual loop,
which
is 4.6 times faster with a typical 256k buffer:
Again, the benefits of the underlying libraries being able to
vectorize over larger chunks of memory ;)
Before:
BenchmarkFromBytes-12 9806 111474 ns/op
After:
BenchmarkFromBytes-12 48193 24106 ns/op
Signed-off-by: Nir Soffer <nsoffer(a)redhat.com>
---
golang/aio_buffer.go | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
ACK.
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org