c# - Process memory does not increase after creating an object? -
i trying understand how memory-properties workingset64, pagedmemorysize64 , on. have written small programm shall debug memory consumption own process.
there 3 classes:
a dto persist memory dump:
public class processdto { public processdto(long workingset64, long privatememorysize64, long pagedsystemmemorysize64, long pagedmemorysize64) { workingset64 = workingset64; privatememorysize64 = privatememorysize64; pagedsystemmemorysize64 = pagedsystemmemorysize64; pagedmemorysize64 = pagedmemorysize64; } public long workingset64 { get; private set; } public long privatememorysize64 { get; private set; } public long pagedsystemmemorysize64 { get; private set; } public long pagedmemorysize64 { get; private set; } } a process reader, first forces gc run , creates memory dump:
internal class processdumper { public processdto getprocessdump(process process) { gc.collect(); gc.waitforpendingfinalizers(); var workingset64 = process.workingset64; var privatememorysize64 = process.privatememorysize64; var pagedsystemmemorysize64 = process.pagedsystemmemorysize64; var pagedmemorysize64 = process.pagedmemorysize64; var result = new processdto(workingset64, privatememorysize64, pagedsystemmemorysize64, pagedmemorysize64); return result; } } and console application:
static void main(string[] args) { var processdumper = new processdumper(); var process = process.getcurrentprocess(); var before = processdumper.getprocessdump(process); console.writeline("[ws64] before: {0} bytes", before.workingset64); console.writeline("[priv64] before: {0} bytes", before.privatememorysize64); console.writeline("[pms64] before: {0} bytes", before.pagedmemorysize64); console.writeline("[psms64] before: {0} bytes", before.pagedsystemmemorysize64); console.writeline(); var foo = new byte[] { 0x10, 0x99, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x04, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, }; var max = foo.max(); console.writeline("just object... max {0}", max); var after = processdumper.getprocessdump(process); var min = foo.min(); console.writeline("just object... min {0}", min); console.writeline(); console.writeline("[ws64] after: {0} bytes", after.workingset64); console.writeline("[priv64] after: {0} bytes", after.privatememorysize64); console.writeline("[pms64] after: {0} bytes", after.pagedmemorysize64); console.writeline("[psms64] after: {0} bytes", after.pagedsystemmemorysize64); console.writeline(); console.writeline("[ws64] diff: {0} bytes", (after.workingset64 - before.workingset64)); console.writeline("[priv64] diff: {0} bytes", (after.privatememorysize64 - before.privatememorysize64)); console.writeline("[pms64] diff: {0} bytes", (after.pagedmemorysize64 - before.pagedmemorysize64)); console.writeline("[psms64] diff: {0} bytes", (after.pagedsystemmemorysize64 - before.pagedsystemmemorysize64)); console.readline(); } now fun part begins. assumed, memory increased between before , after - memory consumption always same.
[ws64] diff: 0 bytes [priv64] diff: 0 bytes [pms64] diff: 0 bytes [psms64] diff: 0 bytes what missing here? have tried move output of before, after , diff bottom kept in memory while dumping, nevertheless seems have no change - diff zero.
you missing not counting used bytes in partion of reserved memory, size of reserved memory. if reserved memory (in example privatememorysize64) in used, runtime allocate more memory set.
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