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sync.yield_processor -> sync.cpu_relax; have it call intrinsics.cpu_relax

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This commit is contained in:
Tetralux
2020-04-21 16:07:18 +00:00
parent 2c91c21021
commit 8dd1b61aa2
2 changed files with 7 additions and 5 deletions
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core/sync/sync.odin
+5 -4
View File
@@ -1,8 +1,9 @@
package sync package sync
foreign { import "core:intrinsics"
@(link_name="llvm.x86.sse2.pause")
yield_processor :: proc() --- cpu_relax :: inline proc() {
intrinsics.cpu_relax();
} }
Ticket_Mutex :: struct { Ticket_Mutex :: struct {
@@ -18,7 +19,7 @@ ticket_mutex_init :: proc(m: ^Ticket_Mutex) {
ticket_mutex_lock :: inline proc(m: ^Ticket_Mutex) { ticket_mutex_lock :: inline proc(m: ^Ticket_Mutex) {
ticket := atomic_add(&m.ticket, 1, .Relaxed); ticket := atomic_add(&m.ticket, 1, .Relaxed);
for ticket != m.serving { for ticket != m.serving {
yield_processor(); intrinsics.cpu_relax();
} }
} }
core/thread/thread_unix.odin
+2 -1
View File
@@ -2,6 +2,7 @@
package thread; package thread;
import "core:runtime" import "core:runtime"
import "core:intrinsics"
import "core:sync" import "core:sync"
import "core:sys/unix" import "core:sys/unix"
@@ -134,7 +135,7 @@ join :: proc(t: ^Thread) {
if sync.atomic_swap(&t.already_joined, true, .Sequentially_Consistent) { if sync.atomic_swap(&t.already_joined, true, .Sequentially_Consistent) {
for { for {
if sync.atomic_load(&t.done, .Sequentially_Consistent) do return; if sync.atomic_load(&t.done, .Sequentially_Consistent) do return;
sync.yield_processor(); intrinsics.cpu_relax();
} }
} }