Hi Ryang, On Thu, Jul 10, 2014 at 12:47 PM, Ryang HaeDong <ryanghaed...@gmail.com> wrote: > Hi, All > > My QT application is very slow on first startup. > My board is a Allwinner A10 running from NAND flash. > When I first try to start my application (with -qws) the screen remains > blank for about 2~3s. > I then briefly get a mouse pointer before my application starts and hides > the mouse. > If I quite my application and start it again, it start instantly (again with > mouse pointer). > > Any ideas why the first start would take so long! > > I also tried with a simple ‘Hello World’ test and it does the same.
Linux does a lot of behind-the-scenes caching, particularly with data on block devices (like NAND flash). If I recall correctly, QT is fairly large, could it be that the first run has to load it from NAND and then it's cached for subsequent runs? Thanks, -- Julian Calaby Email: julian.cal...@gmail.com Profile: http://www.google.com/profiles/julian.calaby/ .Plan: http://sites.google.com/site/juliancalaby/ -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
