<div dir="ltr">Hi There, <div><br></div><div>I did some just to verify my thoughts. So typically if you see memory usage of an application that is running a OpenGL application, 1) it may also include the video memory used by the application (which is also dynamically allocated). This is mostly the case on a linux system. </div><div><br></div><div>2) Now if we verify that is not the case then, the driver keeps a copy on the RAM if it does not have enough space on the Video RAM. </div><div><br></div><div>Now if you have the NVIDIA card (which you said you have), you can use nvidia-smi command line utility. You should run it before and after to see the VRAM usage by your app. That difference should be very close to what you see extra in the top / htop. The other way to verify this is to look into the /proc and idenfity the usage there. </div><div><br></div><div>Let me know if this helps. </div><div><br></div><div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Sep 21, 2014 at 9:18 PM, Emptystack <span dir="ltr"><<a href="mailto:wulihouxiaoshuai@163.com" target="_blank">wulihouxiaoshuai@163.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I am very sorry to trouble you again. Have you found the cause of my problem<br>
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</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div dir="ltr"><font face="trebuchet ms, sans-serif"><i>| Aashish Chaudhary <br>| Technical Leader <br>| Kitware Inc. <br></i></font><div><i><font face="trebuchet ms, sans-serif">| </font><a href="http://www.kitware.com/company/team/chaudhary.html" target="_blank">http://www.kitware.com/company/team/chaudhary.html</a></i></div></div>
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