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X ,s;^// \$G (\$D/)?\$F\.go *$;// compile;g X ,s;^// \$G (\$D/)?\$F\.go && \$L \$F\.\$A *$;// build;g X ,s;^// \$G (\$D/)?\$F\.go && \$L \$F\.\$A && \./\$A\.out *$;// run;g X ,s;^// errchk \$G( -e)? (\$D/)?\$F\.go *$;// errorcheck;g R=golang-dev, bradfitz CC=golang-dev https://golang.org/cl/5673079
45 lines
798 B
Go
45 lines
798 B
Go
// run
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// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Test that goroutines and garbage collection run during init.
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package main
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import "runtime"
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var x []byte
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func init() {
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c := make(chan int)
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go send(c)
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<-c
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const chunk = 1 << 20
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memstats := new(runtime.MemStats)
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runtime.ReadMemStats(memstats)
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sys := memstats.Sys
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b := make([]byte, chunk)
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for i := range b {
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b[i] = byte(i%10 + '0')
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}
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s := string(b)
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for i := 0; i < 1000; i++ {
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x = []byte(s)
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}
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runtime.ReadMemStats(memstats)
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sys1 := memstats.Sys
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if sys1-sys > chunk*50 {
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println("allocated 1000 chunks of", chunk, "and used ", sys1-sys, "memory")
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}
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}
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func send(c chan int) {
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c <- 1
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}
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func main() {
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}
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