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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 /docs/conf.py | |
| parent | migration: I messed state_pending_exact/estimate (diff) | |
| download | qemu-04ffce137b6d85ab4e7687e54e4dffcef0a9ab99.tar.xz 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 'docs/conf.py')
0 files changed, 0 insertions, 0 deletions