diff options
| 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/qapi/error.py | |
| parent | e26470501271adf22e4f37d218c2164884ae96fb (diff) | |
| download | focaccia-qemu-04ffce137b6d85ab4e7687e54e4dffcef0a9ab99.tar.gz focaccia-qemu-04ffce137b6d85ab4e7687e54e4dffcef0a9ab99.zip | |
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/qapi/error.py')
0 files changed, 0 insertions, 0 deletions