It is certainly a micro-benchmark. I just wanted to ask in case it was
expected since I use golang on ARM based embedded systems a lot and they
tend to be sensitive to binary size. In the tests, my binary is stripped
(-ldflags="-w -s"), so I wouldn't think the size difference is related to
the changes that were made to add additional DWARF info, etc. When I
checked the cross compiled Linux ARM 7 sizes for the hello world program,
they are also up in go1.9 beta.
go version go1.8.3 darwin/amd64
$ GOOS=linux GOARCH=arm GOARM=7 go build -ldflags="-w -s"
dozer2:test Parker$ ls -l
total 1824
-rw-r--r-- 1 Parker staff 79 Jun 16 18:47 main.go
-rwxr-xr-x 1 Parker staff 928608 Jun 30 06:37 test
go version devel +eab99a8 Mon Jun 26 21:12:22 2017 +0000 darwin/amd64
$ GOOS=linux GOARCH=arm GOARM=7 go build -ldflags="-w -s"
$ ls -l
total 2176
-rw-r--r-- 1 Parker staff 79 Jun 16 18:47 main.go
-rwxr-xr-x 1 Parker staff 1107256 Jun 30 06:36 test
Checking the hello world HTTP server program:
package main
import (
"net/http"
)
func main() {
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("Hello world!"))
})
panic(http.ListenAndServe(":8080", nil))
}
The size is also up a bit from go1.8 -> go1.9 on both darwin amd64 and
linux_arm (7), though a smaller percentage than the basic hello world.
go version go1.8.3 darwin/amd64
$ go build -ldflags="-w -s"
$ ls -l
total 8344
-rw-r--r-- 1 Parker staff 204 Jun 30 06:44 main.go
-rwxr-xr-x 1 Parker staff 4264852 Jun 30 06:47 test
$ GOOS=linux GOARCH=arm GOARM=7 go build -ldflags="-w -s"
$ ls -l
total 6344
-rw-r--r-- 1 Parker staff 204 Jun 30 06:44 main.go
-rwxr-xr-x 1 Parker staff 3242224 Jun 30 06:48 test
go version devel +eab99a8 Mon Jun 26 21:12:22 2017 +0000 darwin/amd64
$ go build -ldflags="-w -s"
$ ls -l
total 8880
-rw-r--r-- 1 Parker staff 204 Jun 30 06:44 main.go
-rwxr-xr-x 1 Parker staff 4538852 Jun 30 06:45 test
$ GOOS=linux GOARCH=arm GOARM=7 go build -ldflags="-w -s"
$ ls -l
total 6664
-rw-r--r-- 1 Parker staff 204 Jun 30 06:44 main.go
-rwxr-xr-x 1 Parker staff 3405040 Jun 30 06:46 test
I can check it out for bigger/more realistic programs as well.
~Parker
On Thursday, June 29, 2017 at 8:21:18 AM UTC-4, Alberto Donizetti wrote:
>
> But if you have other numbers please share them, it'll certainly interesing
> to see them.
>
> Il giorno giovedì 29 giugno 2017 13:38:18 UTC+2, Parker Evans ha scritto:
>>
>> Congratulations on the Beta 2 release, pretty excited to test it out.
>> Lots of interesting updates!
>>
>> I did notice one thing when I was playing around with Beta 1 and now Beta
>> 2 that I wanted to ask about. Is it expected that binary size would
>> increase in this release? A toy example that has been somewhat of a
>> benchmark in previous releases is the simple hello world program:
>>
>> package main
>>
>> import (
>>
>> "fmt"
>>
>> )
>>
>>
>> func main() {
>>
>> fmt.Println("Hello world!")
>>
>> }
>>
>> It seems like this program, when compiled with options to strip debugging
>> information has grown about 20% in size when compiled natively for macOS:
>>
>> go version go1.8.3 darwin/amd64
>>
>> $ go build -ldflags="-w -s"
>>
>> $ ls -l
>>
>> total 2320
>>
>> -rw-r--r-- 1 Parker staff 79 Jun 16 18:47 main.go
>>
>> -rwxr-xr-x 1 Parker staff 1181728 Jun 29 07:24 test
>>
>> go version devel +eab99a8 Mon Jun 26 21:12:22 2017 +0000 darwin/amd64
>>
>> $ go build -ldflags="-w -s"
>>
>> $ ls -l
>>
>> total 2792
>>
>> -rw-r--r-- 1 Parker staff 79 Jun 16 18:47 main.go
>>
>> -rwxr-xr-x 1 Parker staff 1424992 Jun 29 07:11 test
>>
>> Anyone have any insight on whether this is expected and if a similar
>> increase should be expected across the board in this release?
>>
>> Thanks,
>> Parker
>>
>> On Monday, June 26, 2017 at 6:11:46 PM UTC-4, Chris Broadfoot wrote:
>>>
>>> Hello gophers,
>>>
>>> We have just released go1.9beta2, a beta version of Go 1.9.
>>> It is cut from the master branch at the revision tagged go1.9beta2.
>>>
>>> There are no known problems or regressions.
>>> Please try running production load tests and your unit tests with the
>>> new version.
>>> Your help testing these pre-release versions is invaluable.
>>>
>>> Report any problems using the issue tracker:
>>> https://golang.org/issue/new
>>>
>>> If you have Go installed already, the easiest way to try go1.9beta2
>>> is by using this tool:
>>> https://godoc.org/golang.org/x/build/version/go1.9beta2
>>>
>>> You can download binary and source distributions from the usual place:
>>> https://golang.org/dl/#go1.9beta2
>>>
>>> To find out what has changed in Go 1.9, read the draft release notes:
>>> https://tip.golang.org/doc/go1.9
>>>
>>> Documentation for Go 1.9 is available at:
>>> https://tip.golang.org/
>>>
>>> Cheers,
>>> Chris
>>>
>>
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