Re: Windows vs Linux Performance, windows host 4-6x slower than linux guest vm

[Jordan Henderson]

I have a question related to this.  Wasn't there a Chicken-Scheme once that used the Microsoft language tool chain? 

I could be mistaken.

On Mon, Sep 6, 2021 at 8:29 AM Mark Fisher <mark.j.fisher@gmail.com> wrote:

I've got a windows and linux environment for Chicken on the same machine.
linux is running in VMWare Workstation, the host is Windows 10.

I'm seeing quite a difference in performance between the two; windows host is running about ~4-6x slower than a VM that's running on the same machine.

The code I'm running is some of the 2015 advent of code challenges I'm writing to learn scheme.

My codebase is: https://github.com/markjfisher/aoc-chicken

All times below (last 3 columns) are in millis, they show Total time, then times for the 2 parts that are run to make that total.

building:

$ cd build; RELEASE=1 make clean all

On my linux VM

$ ./advent2015
Day: Part 1   Part 2   Time  P1   P2      
01 : 232      1783     11    6    5        
02 : 1606483  3842356  62    34   28      
03 : 2565     2639     97    27   70      
04 : 254575   1038736  2713  490  2223

On my Windows Host
> advent2015.exe
Day: Part 1   Part 2   Time  P1   P2
01 : 232      1783     63    32   31
02 : 1606483  3842356  375   187  188
03 : 2565     2639     656   187  469
04 : 254575   1038736  10735 2156 8579

Both are using 5.3.0rc2, both using "-O3" flags for release mode. All eggs (listed in the docs/setup.md) were installed with same version of chicken.

gcc is 10.3.0 from chocolatey in windows, and same version in linux.

Is windows performance a known thing? Is there anything else I can do to make the windows build more performant?

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The compilation output for linux:

csc -I ../ -s -d3 -O3 ../advents/2015/aoc2015day01.scm -j aoc2015day01 -emit-types-file aoc2015day01.types -o aoc2015day01.so
csc -I ../ -s -d0 aoc2015day01.import.scm
csc -I ../ -s -d3 -O3 ../advents/2015/aoc2015day02.scm -j aoc2015day02 -emit-types-file aoc2015day02.types -o aoc2015day02.so
csc -I ../ -s -d0 aoc2015day02.import.scm
csc -I ../ -s -d3 -O3 ../advents/2015/aoc2015day03.scm -j aoc2015day03 -emit-types-file aoc2015day03.types -o aoc2015day03.so
csc -I ../ -s -d0 aoc2015day03.import.scm
csc -I ../ -s -d3 -O3 ../advents/2015/aoc2015day04.scm -j aoc2015day04 -emit-types-file aoc2015day04.types -o aoc2015day04.so
csc -I ../ -s -d0 aoc2015day04.import.scm
csc -I ../ ../advents/2015/advent2015.scm -d3 -O2 -compile-syntax -o advent2015

For windows:

csc -I ..\\ -s -d3 -O3 ..\\advents\\2015\\aoc2015day01.scm -j aoc2015day01 -emit-types-file aoc2015day01.types -o aoc2015day01.so
csc -I ..\\ -s -d0 aoc2015day01.import.scm
csc -I ..\\ -s -d3 -O3 ..\\advents\\2015\\aoc2015day02.scm -j aoc2015day02 -emit-types-file aoc2015day02.types -o aoc2015day02.so
csc -I ..\\ -s -d0 aoc2015day02.import.scm
csc -I ..\\ -s -d3 -O3 ..\\advents\\2015\\aoc2015day03.scm -j aoc2015day03 -emit-types-file aoc2015day03.types -o aoc2015day03.so
csc -I ..\\ -s -d0 aoc2015day03.import.scm
csc -I ..\\ -s -d3 -O3 ..\\advents\\2015\\aoc2015day04.scm -j aoc2015day04 -emit-types-file aoc2015day04.types -o aoc2015day04.so
csc -I ..\\ -s -d0 aoc2015day04.import.scm
csc -I ..\\ ..\\advents\\2015\\advent2015.scm -d3 -O2 -compile-syntax -o advent2015

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--

----Jordan Henderson
jordan.henderson@gmail.com