[v6] Optimize buffer_is_zero

[PATCH v6 00/10] Optimize buffer_is_zero

Richard Henderson posted 10 patches 1 week, 2 days ago

Diff against v2 v3 v4 v5
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Patches applied successfully (tree, apply log)
git fetch https://github.com/patchew-project/qemu tags/patchew/20240424225705.929812-1-richard.henderson@linaro.org

include/qemu/cutils.h            |  32 ++-
tests/bench/bufferiszero-bench.c |  47 ++++
util/bufferiszero.c              | 448 +++++++++++++++++--------------
tests/bench/meson.build          |   1 +
4 files changed, 321 insertions(+), 207 deletions(-)
create mode 100644 tests/bench/bufferiszero-bench.c

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[PATCH v6 00/10] Optimize buffer_is_zero

Posted by Richard Henderson 1 week, 2 days ago

v3: https://patchew.org/QEMU/20240206204809.9859-1-amonakov@ispras.ru/
v4: https://patchew.org/QEMU/20240215081449.848220-1-richard.henderson@linaro.org/
v5: https://patchew.org/QEMU/20240217003918.52229-1-richard.henderson@linaro.org/

Changes for v6:
  - Fixes for bufferiszero-bench


r~


Alexander Monakov (5):
  util/bufferiszero: Remove SSE4.1 variant
  util/bufferiszero: Remove AVX512 variant
  util/bufferiszero: Reorganize for early test for acceleration
  util/bufferiszero: Remove useless prefetches
  util/bufferiszero: Optimize SSE2 and AVX2 variants

Richard Henderson (5):
  util/bufferiszero: Improve scalar variant
  util/bufferiszero: Introduce biz_accel_fn typedef
  util/bufferiszero: Simplify test_buffer_is_zero_next_accel
  util/bufferiszero: Add simd acceleration for aarch64
  tests/bench: Add bufferiszero-bench

 include/qemu/cutils.h            |  32 ++-
 tests/bench/bufferiszero-bench.c |  47 ++++
 util/bufferiszero.c              | 448 +++++++++++++++++--------------
 tests/bench/meson.build          |   1 +
 4 files changed, 321 insertions(+), 207 deletions(-)
 create mode 100644 tests/bench/bufferiszero-bench.c

-- 
2.34.1