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| author |  Ilya Tokar <tokarip@google.com> | 2022-11-23 13:26:34 -0800 |
|---|---|---|
| committer |  Copybara-Service <copybara-worker@google.com> | 2022-11-23 13:27:26 -0800 |
| commit | e51b4ef779f58b89563bbf8778f05766ba110e10 (patch) | |
| tree | c764e82c58f61518bff12bd31d7885e60d0001dd /absl | |
| parent | c2e9ce1d07116432c64fbc2f4e0328d387ad6a1c (diff) | |
Fix AMD cpu detection.
Currently we take generic/default code-path on AMD due to misspelling.
Mostly helps with crc+memcpy:
name old speed new speed delta
BM_Memcpy/1 156MB/s ± 1% 156MB/s ± 1% ~ (p=0.563 n=18+18)
BM_Memcpy/100 6.38GB/s ± 1% 6.50GB/s ± 1% +1.89% (p=0.000 n=19+19)
BM_Memcpy/10000 14.6GB/s ± 1% 21.7GB/s ± 0% +49.01% (p=0.000 n=20+19)
BM_Memcpy/500000 13.5GB/s ± 1% 19.9GB/s ± 0% +47.35% (p=0.000 n=18+17)
PiperOrigin-RevId: 490572650
Change-Id: Id7901321a23262c0ab62a2d82fae86cf42acf16d
Diffstat (limited to 'absl')
| -rw-r--r-- | absl/crc/internal/cpu_detect.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/absl/crc/internal/cpu_detect.cc b/absl/crc/internal/cpu_detect.cc index 253c71fd..8b16d84a 100644 --- a/absl/crc/internal/cpu_detect.cc +++ b/absl/crc/internal/cpu_detect.cc @@ -64,7 +64,7 @@ Vendor GetVendor() { vendor.append(reinterpret_cast<char*>(&cpu_info[2]), 4); if (vendor == "GenuineIntel") { return Vendor::kIntel; - } else if (vendor == "AuthenticAmd") { + } else if (vendor == "AuthenticAMD") { return Vendor::kAmd; } else { return Vendor::kUnknown; |