escape-analysis Questions
2
The code:
func MaxSmallSize() {
a := make([]int64, 8191)
b := make([]int64, 8192)
_ = a
_ = b
}
Then run go build -gcflags='-m' . 2>&1 to check memory allocation details. The result:
...
Selfpollination asked 15/2, 2017 at 7:34
1
Solved
func main() {
i1 := 1
A1(&i1)
}
func A1(i1 *int) *int {
return i1
}
And the result of escape analysis is
./main.go:18:9: parameter i1 leaks to \~r1 with derefs=0:
./main.go:18:9: flow: \~r...
Marmawke asked 30/3, 2022 at 7:20
2
Solved
Suppose I have a java.util.Collection that I want to loop over. Normally I'd do this:
for(Thing thing : things) do_something_with(thing);
But suppose that this is in some core utility method that ...
Cesarean asked 1/6, 2021 at 16:30
1
Solved
Here's the example I tried to reproduce from Java Performance: The Definitive Guide, Page 97 on the topic of Escape Analysis. This is probably what should happen:
getSum() must get hot enough and...
Instability asked 11/3, 2018 at 7:32
3
Solved
I am doing some tests with escape analysis in Java 7 in order to better understand what objects are eligible to stack allocation.
Here is the code I wrote to test stack allocation:
import java.ut...
Dareen asked 27/1, 2012 at 11:18
1
In many languages, local variables are located in call stack
In JavaScript/Python, only closure variables are located in heap, because they must live beyond the function calls, they are created.
...
Wivestad asked 28/1, 2017 at 8:8
3
Solved
As far as I know the JVM uses escape analysis for some performance optimisations like lock coarsening and lock elision.
I'm interested if there is a possibility for the JVM to decide that any parti...
Rabbitry asked 21/4, 2009 at 7:21
1
I'm currently working on some performance sensitive code in Go. At one point I have a particularly tight inner loop which does three things in succession:
Obtain several pointers to data. In the ...
Mathematician asked 5/1, 2015 at 22:14
1
Solved
Any ideas about escape analysis in dalvik? Or when and if it's planned to be added?
I consider escape analysis a very important feature in GC languages to avoid churning out objects every time a m...
Storage asked 24/6, 2012 at 11:28
3
Solved
Is there any escape analysis performed by the CLR compiler/JIT? For example, in Java it appears that a loop variable an object allocated in a loop that doesn't escape the loop gets allocated on the...
Alum asked 22/11, 2011 at 5:51
2
Solved
Optimizations based on escape analysis is a planned feature for Proguard. In the meantime, are there any existing tools like proguard that already do optimizations which require escape analysis?
Oosperm asked 10/6, 2010 at 20:6
3
Solved
I've just tried the -XX:+DoEscapeAnalysis option enabled on a jdk6-u18 VM (on solaris) and had a rather disappointing experience. I'm running a scala application which has rather a lot of actors (2...
Myongmyopia asked 1/2, 2010 at 20:28
1
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