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POWhat could explain the difference in memory usage reported by FastMM or GetProcessMemoryInfo?
 

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  1. POWhat could explain the difference in memory usage reported by FastMM or GetProcessMemoryInfo?
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    <p>My Delphi XE application is based on a single EXE using a local server DLL created by RemObjects and uses a lot of memory for a specific operation until it generates an exception saying there are not enough memory. So I'm trying to understand why and where this is happening so I placed various steps throughout my code where I report on memory usage. The problem is that I'm getting very different information based on the method used to get memory usage information:</p> <ol> <li><p>If I use the method <a href="https://stackoverflow.com/a/558290">explained here</a> which asks FastMM directly for both the Client EXE and Server DLL, here is what I get: </p> <ul> <li>STEP 1: [client] = 36664572 - [server] = 3274976</li> <li>STEP 2: [client] = 62641230 - [server] = 44430224</li> <li>STEP 3: [client] = 66665630 - [server] = 44430224</li> </ul></li> <li><p>Now if I use the method <a href="https://stackoverflow.com/a/437818/184404">explained here</a> which uses GetProcessMemoryInfo, I get far more memory usage:</p> <ul> <li>STEP 1: [process] = 133722112</li> <li>STEP 2: [process] = 1072115712</li> <li>STEP 3: [process] = 1075818496</li> </ul></li> </ol> <p>It looks like second method is the right based on my memory problems but how could the FastMM method be so "low" ? And what can explain the difference ?</p>
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