SWIG开销 [英] SWIG overhead

问题描述

我正在寻找一些基准测试，比较SWIG生成的模块与直接用C / Python API制作的
模块。 SWIG给出了多少开销？我看到我的代码的配置文件，它在_swig_setattr_nondinamic，_swig_setattr，

_swig_getattr等函数中花费了一些时间。

解决方案

2007年2月1日02:21:35 -0800，Bart Ogryczak< B. ******** @ gmail.comwrote：
< blockquote class =post_quotes>


我正在寻找一些基准测试，比较SWIG生成的模块和直接用C / Python API制作的
模块。 SWIG给出了多少开销？我看到我的代码的配置文件，它在_swig_setattr_nondinamic，_swig_setattr，

_swig_getattr等函数中花费了一些时间。

在你决定选择低水平之前考虑使用Boost.Python。

据此（ http：// tinyurl .com / 322d3p ）发布它给予漂亮

的良好表现。


PS帖子不包含数字


-

Roman Yakovenko

C ++ Python语言绑定
http://www.language-binding.net/

2007年2月1日星期四上午10:21，Bart Ogryczak写道：

我正在寻找对于一些基准测试，比较SWIG生成的模块与直接用C / Python API制作的
模块。 SWIG给出了多少开销？我看到我的代码的配置文件，它在_swig_setattr_nondinamic，_swig_setattr，

_swig_getattr等函数中花费了一些时间。

有一篇描述一些基准的EuroPython论文。它是从2004年开始的，所以

事情可能有所改变（例如，SIP现已完全记录）。

http://people.web.psi.ch/geus/talks/...n2004_geus.pdf


Phil

2月1日下午12:12，Phil Thompson< p ... @ riverbankcomputing.co .uk>

写道：

2007年2月1日星期四上午10:21，Bart Ogryczak写道：

我正在寻找一些基准测试，比较SWIG生成的模块和直接用C / Python API制作的
模块。 SWIG给出了多少开销？我看到我的代码的配置文件，它在_swig_setattr_nondinamic，_swig_setattr，

_swig_getattr等函数中花费了一些时间。

有一篇描述一些基准的EuroPython论文。它是从2004年开始的，所以

事情可能有所改变（例如，SIP现已完全记录）。

http://people.web.psi.ch/geus/talks/...n2004_geus.pdf

是的，发现一个人在谷歌上搜索。但是到目前为止我还没有资助更多的东西。我想，从那时起，所有这些包装纸的性能都会有所改善。但是Python / C API的表现还是会花费多少？

无论如何，这不是关于确切的数字，更多的是关于做出决定

如果重写值得花时间。

Hi,
I′m looking for some benchmarks comparing SWIG generated modules with
modules made directly with C/Python API. Just how much overhead does
SWIG give? Doing profile of my code I see, that it spends quiet some
time in functions like _swig_setattr_nondinamic, _swig_setattr,
_swig_getattr.

解决方案

On 1 Feb 2007 02:21:35 -0800, Bart Ogryczak <B.********@gmail.comwrote:

Hi,
I′m looking for some benchmarks comparing SWIG generated modules with
modules made directly with C/Python API. Just how much overhead does
SWIG give? Doing profile of my code I see, that it spends quiet some
time in functions like _swig_setattr_nondinamic, _swig_setattr,
_swig_getattr.

Before you decide to go "low level" consider to use Boost.Python.
According to this( http://tinyurl.com/322d3p ) post it gives pretty
good performance.

P.S. The post does not contain numbers

--
Roman Yakovenko
C++ Python language binding
http://www.language-binding.net/

On Thursday 01 February 2007 10:21 am, Bart Ogryczak wrote:

Hi,
I′m looking for some benchmarks comparing SWIG generated modules with
modules made directly with C/Python API. Just how much overhead does
SWIG give? Doing profile of my code I see, that it spends quiet some
time in functions like _swig_setattr_nondinamic, _swig_setattr,
_swig_getattr.

There was a EuroPython paper describing some benchmarks. It''s from 2004 so
things have probably changed a bit (SIP is now fully documented for example).

http://people.web.psi.ch/geus/talks/...n2004_geus.pdf

Phil

On Feb 1, 12:12 pm, Phil Thompson <[e-mail]>
wrote:

On Thursday 01 February 2007 10:21 am, Bart Ogryczak wrote:

Hi,
I′m looking for some benchmarks comparing SWIG generated modules with
modules made directly with C/Python API. Just how much overhead does
SWIG give? Doing profile of my code I see, that it spends quiet some
time in functions like _swig_setattr_nondinamic, _swig_setattr,
_swig_getattr.

There was a EuroPython paper describing some benchmarks. It''s from 2004 so
things have probably changed a bit (SIP is now fully documented for example).

http://people.web.psi.ch/geus/talks/...n2004_geus.pdf

Yeah, found that one googling around. But I haven′t fund anything more
up to date. I imagine, that the performance of all of these wrappers
has been improved since then. But the performance of Python/C API
would too?
Anyways, it′s not about exact number, it′s more about taking decision
if doing rewrite is worth it′s time.

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