diff options
Diffstat (limited to 'src/pkg/runtime/memmove_test.go')
| -rw-r--r-- | src/pkg/runtime/memmove_test.go | 179 |
1 files changed, 153 insertions, 26 deletions
diff --git a/src/pkg/runtime/memmove_test.go b/src/pkg/runtime/memmove_test.go index 9525f0682..540f0feb5 100644 --- a/src/pkg/runtime/memmove_test.go +++ b/src/pkg/runtime/memmove_test.go @@ -5,6 +5,7 @@ package runtime_test import ( + . "runtime" "testing" ) @@ -80,7 +81,7 @@ func TestMemmoveAlias(t *testing.T) { } } -func bmMemmove(n int, b *testing.B) { +func bmMemmove(b *testing.B, n int) { x := make([]byte, n) y := make([]byte, n) b.SetBytes(int64(n)) @@ -89,28 +90,154 @@ func bmMemmove(n int, b *testing.B) { } } -func BenchmarkMemmove0(b *testing.B) { bmMemmove(0, b) } -func BenchmarkMemmove1(b *testing.B) { bmMemmove(1, b) } -func BenchmarkMemmove2(b *testing.B) { bmMemmove(2, b) } -func BenchmarkMemmove3(b *testing.B) { bmMemmove(3, b) } -func BenchmarkMemmove4(b *testing.B) { bmMemmove(4, b) } -func BenchmarkMemmove5(b *testing.B) { bmMemmove(5, b) } -func BenchmarkMemmove6(b *testing.B) { bmMemmove(6, b) } -func BenchmarkMemmove7(b *testing.B) { bmMemmove(7, b) } -func BenchmarkMemmove8(b *testing.B) { bmMemmove(8, b) } -func BenchmarkMemmove9(b *testing.B) { bmMemmove(9, b) } -func BenchmarkMemmove10(b *testing.B) { bmMemmove(10, b) } -func BenchmarkMemmove11(b *testing.B) { bmMemmove(11, b) } -func BenchmarkMemmove12(b *testing.B) { bmMemmove(12, b) } -func BenchmarkMemmove13(b *testing.B) { bmMemmove(13, b) } -func BenchmarkMemmove14(b *testing.B) { bmMemmove(14, b) } -func BenchmarkMemmove15(b *testing.B) { bmMemmove(15, b) } -func BenchmarkMemmove16(b *testing.B) { bmMemmove(16, b) } -func BenchmarkMemmove32(b *testing.B) { bmMemmove(32, b) } -func BenchmarkMemmove64(b *testing.B) { bmMemmove(64, b) } -func BenchmarkMemmove128(b *testing.B) { bmMemmove(128, b) } -func BenchmarkMemmove256(b *testing.B) { bmMemmove(256, b) } -func BenchmarkMemmove512(b *testing.B) { bmMemmove(512, b) } -func BenchmarkMemmove1024(b *testing.B) { bmMemmove(1024, b) } -func BenchmarkMemmove2048(b *testing.B) { bmMemmove(2048, b) } -func BenchmarkMemmove4096(b *testing.B) { bmMemmove(4096, b) } +func BenchmarkMemmove0(b *testing.B) { bmMemmove(b, 0) } +func BenchmarkMemmove1(b *testing.B) { bmMemmove(b, 1) } +func BenchmarkMemmove2(b *testing.B) { bmMemmove(b, 2) } +func BenchmarkMemmove3(b *testing.B) { bmMemmove(b, 3) } +func BenchmarkMemmove4(b *testing.B) { bmMemmove(b, 4) } +func BenchmarkMemmove5(b *testing.B) { bmMemmove(b, 5) } +func BenchmarkMemmove6(b *testing.B) { bmMemmove(b, 6) } +func BenchmarkMemmove7(b *testing.B) { bmMemmove(b, 7) } +func BenchmarkMemmove8(b *testing.B) { bmMemmove(b, 8) } +func BenchmarkMemmove9(b *testing.B) { bmMemmove(b, 9) } +func BenchmarkMemmove10(b *testing.B) { bmMemmove(b, 10) } +func BenchmarkMemmove11(b *testing.B) { bmMemmove(b, 11) } +func BenchmarkMemmove12(b *testing.B) { bmMemmove(b, 12) } +func BenchmarkMemmove13(b *testing.B) { bmMemmove(b, 13) } +func BenchmarkMemmove14(b *testing.B) { bmMemmove(b, 14) } +func BenchmarkMemmove15(b *testing.B) { bmMemmove(b, 15) } +func BenchmarkMemmove16(b *testing.B) { bmMemmove(b, 16) } +func BenchmarkMemmove32(b *testing.B) { bmMemmove(b, 32) } +func BenchmarkMemmove64(b *testing.B) { bmMemmove(b, 64) } +func BenchmarkMemmove128(b *testing.B) { bmMemmove(b, 128) } +func BenchmarkMemmove256(b *testing.B) { bmMemmove(b, 256) } +func BenchmarkMemmove512(b *testing.B) { bmMemmove(b, 512) } +func BenchmarkMemmove1024(b *testing.B) { bmMemmove(b, 1024) } +func BenchmarkMemmove2048(b *testing.B) { bmMemmove(b, 2048) } +func BenchmarkMemmove4096(b *testing.B) { bmMemmove(b, 4096) } + +func TestMemclr(t *testing.T) { + size := 512 + if testing.Short() { + size = 128 + 16 + } + mem := make([]byte, size) + for i := 0; i < size; i++ { + mem[i] = 0xee + } + for n := 0; n < size; n++ { + for x := 0; x <= size-n; x++ { // offset in mem + MemclrBytes(mem[x : x+n]) + for i := 0; i < x; i++ { + if mem[i] != 0xee { + t.Fatalf("overwrite prefix mem[%d] = %d", i, mem[i]) + } + } + for i := x; i < x+n; i++ { + if mem[i] != 0 { + t.Fatalf("failed clear mem[%d] = %d", i, mem[i]) + } + mem[i] = 0xee + } + for i := x + n; i < size; i++ { + if mem[i] != 0xee { + t.Fatalf("overwrite suffix mem[%d] = %d", i, mem[i]) + } + } + } + } +} + +func bmMemclr(b *testing.B, n int) { + x := make([]byte, n) + b.SetBytes(int64(n)) + for i := 0; i < b.N; i++ { + MemclrBytes(x) + } +} +func BenchmarkMemclr5(b *testing.B) { bmMemclr(b, 5) } +func BenchmarkMemclr16(b *testing.B) { bmMemclr(b, 16) } +func BenchmarkMemclr64(b *testing.B) { bmMemclr(b, 64) } +func BenchmarkMemclr256(b *testing.B) { bmMemclr(b, 256) } +func BenchmarkMemclr4096(b *testing.B) { bmMemclr(b, 4096) } +func BenchmarkMemclr65536(b *testing.B) { bmMemclr(b, 65536) } + +func BenchmarkClearFat32(b *testing.B) { + for i := 0; i < b.N; i++ { + var x [32]byte + _ = x + } +} +func BenchmarkClearFat64(b *testing.B) { + for i := 0; i < b.N; i++ { + var x [64]byte + _ = x + } +} +func BenchmarkClearFat128(b *testing.B) { + for i := 0; i < b.N; i++ { + var x [128]byte + _ = x + } +} +func BenchmarkClearFat256(b *testing.B) { + for i := 0; i < b.N; i++ { + var x [256]byte + _ = x + } +} +func BenchmarkClearFat512(b *testing.B) { + for i := 0; i < b.N; i++ { + var x [512]byte + _ = x + } +} +func BenchmarkClearFat1024(b *testing.B) { + for i := 0; i < b.N; i++ { + var x [1024]byte + _ = x + } +} + +func BenchmarkCopyFat32(b *testing.B) { + var x [32 / 4]uint32 + for i := 0; i < b.N; i++ { + y := x + _ = y + } +} +func BenchmarkCopyFat64(b *testing.B) { + var x [64 / 4]uint32 + for i := 0; i < b.N; i++ { + y := x + _ = y + } +} +func BenchmarkCopyFat128(b *testing.B) { + var x [128 / 4]uint32 + for i := 0; i < b.N; i++ { + y := x + _ = y + } +} +func BenchmarkCopyFat256(b *testing.B) { + var x [256 / 4]uint32 + for i := 0; i < b.N; i++ { + y := x + _ = y + } +} +func BenchmarkCopyFat512(b *testing.B) { + var x [512 / 4]uint32 + for i := 0; i < b.N; i++ { + y := x + _ = y + } +} +func BenchmarkCopyFat1024(b *testing.B) { + var x [1024 / 4]uint32 + for i := 0; i < b.N; i++ { + y := x + _ = y + } +} |