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| author | ling xu <ling1.xu@intel.com> | 2022-11-16 23:29:22 +0800 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2023-02-11 16:51:09 +0100 |
| commit | 04ffce137b6d85ab4e7687e54e4dffcef0a9ab99 (patch) | |
| tree | 857d2986fa10dc683585f56c742038b413f9ae5e /scripts | |
| parent | e26470501271adf22e4f37d218c2164884ae96fb (diff) | |
| download | qemu-04ffce137b6d85ab4e7687e54e4dffcef0a9ab99.zip qemu-04ffce137b6d85ab4e7687e54e4dffcef0a9ab99.tar.gz qemu-04ffce137b6d85ab4e7687e54e4dffcef0a9ab99.tar.bz2 | |
AVX512 support for xbzrle_encode_buffer
This commit is the same with [PATCH v6 1/2], and provides avx512 support for xbzrle_encode_buffer
function to accelerate xbzrle encoding speed. Runtime check of avx512
support and benchmark for this feature are added. Compared with C
version of xbzrle_encode_buffer function, avx512 version can achieve
50%-70% performance improvement on benchmarking. In addition, if dirty
data is randomly located in 4K page, the avx512 version can achieve
almost 140% performance gain.
Signed-off-by: ling xu <ling1.xu@intel.com>
Co-authored-by: Zhou Zhao <zhou.zhao@intel.com>
Co-authored-by: Jun Jin <jun.i.jin@intel.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/meson-buildoptions.sh | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/scripts/meson-buildoptions.sh b/scripts/meson-buildoptions.sh index 0f71e92..c2982ea 100644 --- a/scripts/meson-buildoptions.sh +++ b/scripts/meson-buildoptions.sh @@ -70,6 +70,7 @@ meson_options_help() { printf "%s\n" ' attr attr/xattr support' printf "%s\n" ' auth-pam PAM access control' printf "%s\n" ' avx2 AVX2 optimizations' + printf "%s\n" ' avx512bw AVX512BW optimizations' printf "%s\n" ' avx512f AVX512F optimizations' printf "%s\n" ' blkio libblkio block device driver' printf "%s\n" ' bochs bochs image format support' @@ -198,6 +199,8 @@ _meson_option_parse() { --disable-auth-pam) printf "%s" -Dauth_pam=disabled ;; --enable-avx2) printf "%s" -Davx2=enabled ;; --disable-avx2) printf "%s" -Davx2=disabled ;; + --enable-avx512bw) printf "%s" -Davx512bw=enabled ;; + --disable-avx512bw) printf "%s" -Davx512bw=disabled ;; --enable-avx512f) printf "%s" -Davx512f=enabled ;; --disable-avx512f) printf "%s" -Davx512f=disabled ;; --enable-gcov) printf "%s" -Db_coverage=true ;; |