🎨 内核垃圾回收

kernel/sql/cache.go

@@ -17,7 +17,7 @@
 package sql
 
 import (
-	"runtime"
+	"runtime/debug"
 	"time"
 
 	"github.com/88250/lute/ast"
@@ -45,7 +45,7 @@ func DisableCache() {
 
 func ClearBlockCache() {
 	memCache.Clear()
-	runtime.GC()
+	debug.FreeOSMemory()
 }
 
 func putBlockCache(block *Block) {

kernel/sql/database.go

@@ -25,6 +25,7 @@ import (
 	"path/filepath"
 	"regexp"
 	"runtime"
+	"runtime/debug"
 	"strings"
 	"sync"
 	"time"
@@ -1267,6 +1268,7 @@ func closeDatabase() (err error) {
 	}
 
 	err = db.Close()
+	debug.FreeOSMemory()
 	runtime.GC() // 没有这句的话文件句柄不会释放，后面就无法删除文件
 	return
 }

kernel/sql/queue.go

@@ -21,7 +21,7 @@ import (
 	"errors"
 	"fmt"
 	"path"
-	"runtime"
+	"runtime/debug"
 	"sync"
 	"time"
 
@@ -128,12 +128,12 @@ func FlushQueue() {
 		}
 
 		if 16 < i && 0 == i%128 {
-			runtime.GC()
+			debug.FreeOSMemory()
 		}
 	}
 
 	if 128 < len(ops) {
-		runtime.GC()
+		debug.FreeOSMemory()
 	}
 
 	elapsed := time.Now().Sub(start).Milliseconds()