diff options
Diffstat (limited to '8003-runtime-add-kunpeng-malloc-optimize.patch')
| -rw-r--r-- | 8003-runtime-add-kunpeng-malloc-optimize.patch | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/8003-runtime-add-kunpeng-malloc-optimize.patch b/8003-runtime-add-kunpeng-malloc-optimize.patch new file mode 100644 index 0000000..da16ef7 --- /dev/null +++ b/8003-runtime-add-kunpeng-malloc-optimize.patch @@ -0,0 +1,81 @@ +From 9feb2b8eb21c27e9ec1ab2bd45a59b7dec451d3a Mon Sep 17 00:00:00 2001 +From: jinye <jinye10@huawei.com> +Date: Tue, 5 Aug 2025 20:26:54 +0800 +Subject: [PATCH] runtime:add kunpeng malloc optimize + +--- + src/internal/goexperiment/exp_prefetchmalloc_off.go | 8 ++++++++ + src/internal/goexperiment/exp_prefetchmalloc_on.go | 8 ++++++++ + src/internal/goexperiment/flags.go | 3 +++ + src/runtime/malloc.go | 6 ++++++ + 4 files changed, 25 insertions(+) + create mode 100644 src/internal/goexperiment/exp_prefetchmalloc_off.go + create mode 100644 src/internal/goexperiment/exp_prefetchmalloc_on.go + +diff --git a/src/internal/goexperiment/exp_prefetchmalloc_off.go b/src/internal/goexperiment/exp_prefetchmalloc_off.go +new file mode 100644 +index 00000000..c0b645ff +--- /dev/null ++++ b/src/internal/goexperiment/exp_prefetchmalloc_off.go +@@ -0,0 +1,8 @@ ++// Code generated by mkconsts.go. DO NOT EDIT. ++ ++//go:build !goexperiment.prefetchmalloc ++ ++package goexperiment ++ ++const PrefetchMalloc = false ++const PrefetchMallocInt = 0 +diff --git a/src/internal/goexperiment/exp_prefetchmalloc_on.go b/src/internal/goexperiment/exp_prefetchmalloc_on.go +new file mode 100644 +index 00000000..c6a08728 +--- /dev/null ++++ b/src/internal/goexperiment/exp_prefetchmalloc_on.go +@@ -0,0 +1,8 @@ ++// Code generated by mkconsts.go. DO NOT EDIT. ++ ++//go:build experiment.prefetchmalloc ++ ++package goexperiment ++ ++const PrefetchMalloc = true ++const PrefetchMallocInt = 1 +diff --git a/src/internal/goexperiment/flags.go b/src/internal/goexperiment/flags.go +index 948ed5c8..04ea20a9 100644 +--- a/src/internal/goexperiment/flags.go ++++ b/src/internal/goexperiment/flags.go +@@ -128,4 +128,7 @@ type Flags struct { + + // Synctest enables the testing/synctest package. + Synctest bool ++ ++ // Kunpeng malloc prefetch optimization. ++ PrefetchMalloc bool + } +diff --git a/src/runtime/malloc.go b/src/runtime/malloc.go +index 73d663f7..a8cac5b0 100644 +--- a/src/runtime/malloc.go ++++ b/src/runtime/malloc.go +@@ -102,6 +102,7 @@ package runtime + + import ( + "internal/goarch" ++ "internal/goexperiment" + "internal/goos" + "internal/runtime/atomic" + "internal/runtime/math" +@@ -1092,6 +1093,11 @@ func mallocgc(size uintptr, typ *_type, needzero bool) unsafe.Pointer { + if debug.malloc { + postMallocgcDebug(x, elemsize, typ) + } ++ ++ if goexperiment.PrefetchMalloc { ++ sys.Prefetch(uintptr(unsafe.Add(x, size))) ++ } ++ + return x + } + +-- +2.33.0 + |