Installation through MSI takes more time than XCOPY deployment
Patch on that product which was installed through XCOPY and it was installing in 39 second.
migrate to MSI and When they install the Patch on MSI.Patch takes 5 to 10 min during installation this is not acceptable. Workaround to this issue is
Elimination of self-registration custom actions during a patch install and uninstall using a custom MSI table, "BatchReg".Virtual memory prefetching of installed files, to improve the performance of the standard MSI file costing actions, Installing Multiple feature per component modification of the with OptimizedInstallMode flag (using Orca after the .MSP file is built,since our 3.n PATCHWIZ.DLL does not support OptimizedInstallMode in the.PCP file) -- to activate flyweight patching
To Reduce time during Creation of CAB file, if you are compressing files in Patch
1.Tuning Access Time vs. Compression Ratio
Variable/Directive More Compression; Slower Access Time Less Compression; Faster Access Time
CabinetFileCountThreshold Bigger numbers Lower numbers
FolderFileCountThreshold Bigger numbers Lower numbers
FolderSizeThreshold Bigger numbers Lower numbers
MaxCabinetSize Bigger numbers Lower numbers
.New Folder Don't use Use often
.New Cabinet Don't use Use often