Subversion Repositories openrisc

// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package runtime_test

import (
        "runtime"
        "testing"
)

func TestGcSys(t *testing.T) {
        memstats := new(runtime.MemStats)
        runtime.GC()
        runtime.ReadMemStats(memstats)
        sys := memstats.Sys

        for i := 0; i < 1000000; i++ {
                workthegc()
        }

        // Should only be using a few MB.
        runtime.ReadMemStats(memstats)
        if sys > memstats.Sys {
                sys = 0
        } else {
                sys = memstats.Sys - sys
        }
        t.Logf("used %d extra bytes", sys)
        if sys > 4<<20 {
                t.Fatalf("using too much memory: %d bytes", sys)
        }
}

func workthegc() []byte {
        return make([]byte, 1029)
}