如何获取内存使用情况的统计信息？ [英] how to get statistics about memory usage ?
问题描述
在一个程序中，我需要获取一些关于内存使用情况的统计信息。
我实际上需要ps给出的数字 - o vsr，rss"命令。
目前，我制作了一个popen（ps ...），然后在scanf上显示它显示的b
。这有点复杂，这会扭曲测量值。
有更好的方法吗？
我试过getrusage（）。但是返回的值并不是真的与我的需求相关。
我也查看了mallinfo（），没有成功。
首先，我不知道那是什么块。 （什么尺寸 ？）。然后，那就是
不计算堆栈大小和代码大小，只计算malloc。
（顺便说一下，它或多或少是一个C ++代码。那么，新是否计入
mallinfo（）？）
然后，我的程序如何知道它的常驻集合大小？特别是它的
虚拟内存大小？
谢谢。
Christophe
Hi,
Inside a program, I need to get some statistics about memory usage.
I actually need figures given by the "ps -o vsr,rss" command.
For the moment, I make a popen("ps...") followed of a scanf on what it
displays. It is a little complicated, and that distorts measurements.
Is there a better way?
I have tried "getrusage()". However values returned are not really
relevant for my needs.
I also looked at "mallinfo()", without success.
First, I do not know what is that a "block" (which size ?). Then, that does
not count the stack size and the code size, just the malloc.
(By the way, it''s more or less a C++ code. So, are the "new" counted in
mallinfo() ?)
Then, how can my program know its "resident set size" and especially its
"virtual memory size"?
Thanks.
Christophe
推荐答案
Christophe Lohr写道：
Christophe Lohr wrote:
在程序中，我需要获取一些有关内存使用情况的统计信息。我实际上需要ps -o vsr，rss给出的数字。命令。
目前，我制作了一个popen（ps ...），然后在scanf上显示它所显示的内容。这有点复杂，这会扭曲测量结果。
有没有更好的方法？
我尝试过getrusage（）。然而，返回的值与我的需求并不相关。
我也看了mallinfo（），没有成功。
首先，我不知道是什么阻止 （什么尺寸 ？）。然后，这不计算堆栈大小和代码大小，只计算malloc。
（顺便说一下，它或多或少是一个C ++代码。所以，新是什么？在mallinfo（）中计算？）
然后，我的程序如何知道它的驻留集大小？尤其是它的虚拟内存大小？
谢谢。
Christophe
Hi,
Inside a program, I need to get some statistics about memory usage.
I actually need figures given by the "ps -o vsr,rss" command.
For the moment, I make a popen("ps...") followed of a scanf on what it
displays. It is a little complicated, and that distorts measurements.
Is there a better way?
I have tried "getrusage()". However values returned are not really
relevant for my needs.
I also looked at "mallinfo()", without success.
First, I do not know what is that a "block" (which size ?). Then, that does
not count the stack size and the code size, just the malloc.
(By the way, it''s more or less a C++ code. So, are the "new" counted in
mallinfo() ?)
Then, how can my program know its "resident set size" and especially its
"virtual memory size"?
Thanks.
Christophe
C语言本身知道不是这样的事情。但是，很可能，你的平台提供了一些获取此类信息的方式（可能以合理的方式支付b $ b）<提示，提示>。查看您的文档或发布到
相关新闻组。
HTH，
--ag
-
Artie Gold - 德克萨斯州奥斯汀
http://goldsays.blogspot.com （新帖子8/5）
http://www.cafepress.com/goldsays
如果你没有什么可隐瞒的，你就不会尝试！
The C language itself knows not of such things. Is is likely, however,
that your platform provides some way of getting such information (likely
in a reasonable way) <hint, hint>. See your documentation or post to a
relevant newsgroup.
HTH,
--ag
--
Artie Gold -- Austin, Texas
http://goldsays.blogspot.com (new post 8/5)
http://www.cafepress.com/goldsays
"If you have nothing to hide, you''re not trying!"
Christophe Lohr写道：
Christophe Lohr wrote:
在程序中，我需要获取一些有关内存使用情况的统计信息。
我实际上需要ps -o vsr，rss给出的数字。命令。
目前，我制作了一个popen（ps ...），然后在scanf上显示它所显示的内容。这有点复杂，这会扭曲测量结果。
有没有更好的方法？
我尝试过getrusage（）。然而，返回的值与我的需求并不相关。
我也看了mallinfo（），没有成功。
首先，我不知道是什么阻止 （什么尺寸 ？）。然后，这不计算堆栈大小和代码大小，只计算malloc。
（顺便说一下，它或多或少是一个C ++代码。所以，新是什么？在mallinfo（）中计算？）
然后，我的程序如何知道它的驻留集大小？尤其是它的虚拟内存大小？
谢谢。
Christophe
Hi,
Inside a program, I need to get some statistics about memory usage.
I actually need figures given by the "ps -o vsr,rss" command.
For the moment, I make a popen("ps...") followed of a scanf on what it
displays. It is a little complicated, and that distorts measurements.
Is there a better way?
I have tried "getrusage()". However values returned are not really
relevant for my needs.
I also looked at "mallinfo()", without success.
First, I do not know what is that a "block" (which size ?). Then, that does
not count the stack size and the code size, just the malloc.
(By the way, it''s more or less a C++ code. So, are the "new" counted in
mallinfo() ?)
Then, how can my program know its "resident set size" and especially its
"virtual memory size"?
Thanks.
Christophe
这是所有系统特定的，所以OT在comp.lang.c中。从你是什么
说，
我相信comp.unix.programmer将是你获得
帮助的好地方。 < OT>在Linux上，可以在/ proc文件系统中找到你想要的东西，你可以在杯子里询问一下< / OT>
-David
This is all system specific, so OT in comp.lang.c. From what you are
saying,
I believe comp.unix.programmer would be a good place for you to get
help. <OT> On Linux, May find what you want in /proc file system, you
could ask about that in cup </OT>
-David
" David Resnick" < LN ******** @ gmail.com>写道：
[...]
"David Resnick" <ln********@gmail.com> writes:
[...]
这是所有系统特定的，所以OT在comp.lang.c中。从你的内容来说，
我相信comp.unix.programmer将是你获得帮助的好地方。 < OT>在Linux上，可以在/ proc文件系统中找到你想要的内容，你可以在杯子中询问这个< / OT>
This is all system specific, so OT in comp.lang.c. From what you are
saying,
I believe comp.unix.programmer would be a good place for you to get
help. <OT> On Linux, May find what you want in /proc file system, you
could ask about that in cup </OT>
< STILL_OT>
/ proc是特定于Linux的，虽然其他类似Unix的系统可能会提供类似的东西。
< / STILL_OT>
-
Keith Thompson（The_Other_Keith） ks***@mib.org < http://www.ghoti.net/~kst>
圣地亚哥超级计算机中心< *> < http://users.sdsc.edu/~kst>
我们必须做点什么。这是事情。因此，我们必须这样做。
<STILL_OT>
/proc is Linux-specific, though some other Unix-like systems may
provide something similar.
</STILL_OT>
--
Keith Thompson (The_Other_Keith) ks***@mib.org <http://www.ghoti.net/~kst>
San Diego Supercomputer Center <*> <http://users.sdsc.edu/~kst>
We must do something. This is something. Therefore, we must do this.
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