1, to generate an XPS document 2 m memory, circulation generated 1000, growing only memory to release

2, when memory rose to about 1 g, would be an error of "open file" C: \ WINDOWS \ FONTS \ SIMSUN TTC "I/O error,"

3, online said GC. Collect (); SetProcessWorkingSetSize EmptyWorkingSet are not make

 var xpSfile=the string. Format (" {0}. XPS, Guid. NewGuid (), ToString ()); 
Var paginator=((IDocumentPaginatorSource) preview. The Document). DocumentPaginator; 
Using (var xpsDoc=new XpsDocument [xpSfile, FileAccess ReadWrite, CompressionOption. Maximum)) 
{
Using (var XPP=new XpsPackagingPolicy (xpsDoc)) 
{
Using (var RSM=new XpsSerializationManager (XPP, false)) 
{
The RSM. SaveAsXaml (paginator); 
Rsm.Com MIT (); 
XpsDoc. Close (); 
} 
} 
}