authorgravatar for 124872+jedisct1@users.noreply.github.comFrank Denis <124872+jedisct1@users.noreply.github.com> 2022-11-07 12:28:37+01:00
committergravatar for andrew@ziglang.orgAndrew Kelley <andrew@ziglang.org> 2023-01-09 13:52:02-07:00
log6a94bcbbc6fdd4cd33981f924a7bd27773889e53
tree1121cf2ac3561e51f05c29c255be49b881cf81c2
parent30d392a87e7ebd51269a557b6bccbc3163e8db75

crypto.core.aes: process 6 block in parallel instead of 8 on aarch64 (#13473)

* crypto.core.aes: process 6 block in parallel instead of 8 on aarch64 At least on Apple Silicon, this is slightly faster than 8 blocks. * AES: add parallel blocks for tigerlake, rocketlake, alderlake, zen3

2 files changed, 3 insertions(+), 3 deletions(-)

lib/std/crypto/aes/aesni.zig+2-2
...@@ -101,8 +101,8 @@ pub const Block = struct {...@@ -101,8 +101,8 @@ pub const Block = struct {
101 &cpu.sandybridge, &cpu.ivybridge => 8,101 &cpu.sandybridge, &cpu.ivybridge => 8,
102 &cpu.haswell, &cpu.broadwell => 7,102 &cpu.haswell, &cpu.broadwell => 7,
103 &cpu.cannonlake, &cpu.skylake, &cpu.skylake_avx512 => 4,103 &cpu.cannonlake, &cpu.skylake, &cpu.skylake_avx512 => 4,
104 &cpu.icelake_client, &cpu.icelake_server => 6,104 &cpu.icelake_client, &cpu.icelake_server, &cpu.tigerlake, &cpu.rocketlake, &cpu.alderlake => 6,
105 &cpu.znver1, &cpu.znver2 => 8,105 &cpu.znver1, &cpu.znver2, &cpu.znver3 => 8,
106 else => 8,106 else => 8,
107 };107 };
108108
lib/std/crypto/aes/armcrypto.zig+1-1
...@@ -109,7 +109,7 @@ pub const Block = struct {...@@ -109,7 +109,7 @@ pub const Block = struct {
109 /// Perform operations on multiple blocks in parallel.109 /// Perform operations on multiple blocks in parallel.
110 pub const parallel = struct {110 pub const parallel = struct {
111 /// The recommended number of AES encryption/decryption to perform in parallel for the chosen implementation.111 /// The recommended number of AES encryption/decryption to perform in parallel for the chosen implementation.
112 pub const optimal_parallel_blocks = 8;112 pub const optimal_parallel_blocks = 6;
113113
114 /// Encrypt multiple blocks in parallel, each their own round key.114 /// Encrypt multiple blocks in parallel, each their own round key.
115 pub inline fn encryptParallel(comptime count: usize, blocks: [count]Block, round_keys: [count]Block) [count]Block {115 pub inline fn encryptParallel(comptime count: usize, blocks: [count]Block, round_keys: [count]Block) [count]Block {