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// $G $D/$F.go && $L $F.$A && ./$A.out
// Copyright 2009 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.
// Repeated malloc test.
package main
import (
"flag";
"malloc"
)
var chatty bool;
var chatty_flag = flag.Bool("v", false, &chatty, "chatty");
var oldsys uint64;
func bigger() {
if st := malloc.GetStats(); oldsys < st.sys {
oldsys = st.sys;
if chatty {
println(st.sys, " system bytes for ", st.alloc, " Go bytes");
}
if st.sys > 1e9 {
panicln("too big");
}
}
}
func main() {
flag.Parse();
for i := 0; i < 1<<8; i++ {
for j := 1; j <= 1<<22; j<<=1 {
if i == 0 && chatty {
println("First alloc:", j);
}
b := malloc.Alloc(uint64(j));
malloc.Free(b);
if a := malloc.GetStats().alloc; a != 0 {
panicln("malloc wrong count", a);
}
bigger();
}
if i%(1<<10) == 0 && chatty {
println(i);
}
if i == 0 {
if chatty {
println("Primed", i);
}
// malloc.frozen = true;
}
}
}
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