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@@ -0,0 +1,131 @@
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+package test_core_image
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+
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+import "core:hash/xxhash"
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+import "core:time"
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+import "core:testing"
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+import "core:fmt"
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+
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+TEST_count := 0
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+TEST_fail := 0
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+
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+when ODIN_TEST {
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+ expect :: testing.expect
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+ log :: testing.log
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+} else {
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+ expect :: proc(t: ^testing.T, condition: bool, message: string, loc := #caller_location) {
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+ fmt.printf("[%v] ", loc)
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+ TEST_count += 1
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+ if !condition {
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+ TEST_fail += 1
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+ fmt.println(" FAIL:", message)
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+ return
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+ }
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+ fmt.println(" PASS")
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+ }
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+ log :: proc(t: ^testing.T, v: any, loc := #caller_location) {
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+ fmt.printf("[%v] ", loc)
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+ fmt.printf("log: %v\n", v)
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+ }
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+}
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+
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+main :: proc() {
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+ t := testing.T{}
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+ test_benchmark_runner(&t)
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+ fmt.printf("%v/%v tests successful.\n", TEST_count - TEST_fail, TEST_count)
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+}
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+
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+/*
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+ Benchmarks
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+*/
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+
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+setup_xxhash :: proc(options: ^time.Benchmark_Options, allocator := context.allocator) -> (err: time.Benchmark_Error) {
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+ assert(options != nil)
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+
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+ options.input = make([]u8, options.bytes, allocator)
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+ return nil if len(options.input) == options.bytes else .Allocation_Error
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+}
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+
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+teardown_xxhash :: proc(options: ^time.Benchmark_Options, allocator := context.allocator) -> (err: time.Benchmark_Error) {
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+ assert(options != nil)
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+
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+ delete(options.input)
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+ return nil
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+}
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+
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+benchmark_xxhash32 :: proc(options: ^time.Benchmark_Options, allocator := context.allocator) -> (err: time.Benchmark_Error) {
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+ buf := options.input
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+
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+ h: u32
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+ for _ in 0..=options.rounds {
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+ h = xxhash.XXH32(buf)
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+ }
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+ options.count = options.rounds
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+ options.processed = options.rounds * options.bytes
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+ options.hash = u128(h)
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+ return nil
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+}
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+
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+benchmark_xxhash64 :: proc(options: ^time.Benchmark_Options, allocator := context.allocator) -> (err: time.Benchmark_Error) {
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+ buf := options.input
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+
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+ h: u64
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+ for _ in 0..=options.rounds {
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+ h = xxhash.XXH64(buf)
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+ }
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+ options.count = options.rounds
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+ options.processed = options.rounds * options.bytes
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+ options.hash = u128(h)
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+ return nil
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+}
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+
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+benchmark_print :: proc(name: string, options: ^time.Benchmark_Options) {
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+ fmt.printf("\t[%v] %v rounds, %v bytes procesed in %v ns\n\t\t%5.3f rounds/s, %5.3f MiB/s\n",
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+ name,
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+ options.rounds,
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+ options.processed,
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+ time.duration_nanoseconds(options.duration),
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+ options.rounds_per_second,
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+ options.megabytes_per_second,
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+ )
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+}
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+
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+@test
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+test_benchmark_runner :: proc(t: ^testing.T) {
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+ fmt.println("Starting benchmarks:")
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+
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+ name := "xxhash32 100 zero bytes"
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+ options := &time.Benchmark_Options{
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+ rounds = 1_000,
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+ bytes = 100,
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+ setup = setup_xxhash,
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+ bench = benchmark_xxhash32,
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+ teardown = teardown_xxhash,
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+ }
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+
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+ err := time.benchmark(options, context.allocator)
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+ expect(t, err == nil, name)
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+ expect(t, options.hash == 0x85f6413c, name)
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+ benchmark_print(name, options)
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+
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+ name = "xxhash32 1 MiB zero bytes"
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+ options.bytes = 1_048_576
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+ err = time.benchmark(options, context.allocator)
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+ expect(t, err == nil, name)
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+ expect(t, options.hash == 0x9430f97f, name)
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+ benchmark_print(name, options)
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+
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+ name = "xxhash64 100 zero bytes"
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+ options.bytes = 100
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+ options.bench = benchmark_xxhash64
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+ err = time.benchmark(options, context.allocator)
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+ expect(t, err == nil, name)
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+ expect(t, options.hash == 0x17bb1103c92c502f, name)
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+ benchmark_print(name, options)
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+
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+ name = "xxhash64 1 MiB zero bytes"
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+ options.bytes = 1_048_576
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+ err = time.benchmark(options, context.allocator)
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+ expect(t, err == nil, name)
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+ expect(t, options.hash == 0x87d2a1b6e1163ef1, name)
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+ benchmark_print(name, options)
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+}
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