Xiaofeng: We find the similar issue in DEBUG tip when DEBUG log is enabled. AllocatePool() service will be slower than before. The updated memory allocation algorithm brings the long free pool list and cause AllocatePool() service slow. I am still investigating it. The temp solution is to disable link list check by set gEfiMdePkgTokenSpaceGuid.PcdMaximumLinkedListLength to 0 in platform DSC file. Could you see whether this way works or not? If it works, your issue should be same to ours. If not, your issue may be different.
Thanks Liming > -----Original Message----- > From: edk2-devel [mailto:[email protected]] On Behalf Of > wang xiaofeng > Sent: Wednesday, March 09, 2016 10:36 AM > To: Dong, Eric; [email protected] > Subject: [edk2] Update UDK2014 to UDK2015 leads to setup page slow > > Hi Edk2 developers, > After upate to UDK2015 from UDk2014, the Uiapp setup shows very slow. > the following is our issue and debug information. Anyone meet similar issue > before? > > > Issue symptom: > > 1, System draw the Front Page cost about 2 second. We can see the frame/ > menu block/ help block draw one by one. Other submenu has same slowly > display when enter it. > > Normally those are instantaneous work . > > 2, Change the highlight item in one page meet about half-second delay > response. > > 3, In Data and time page. We can see the scan line to update the time display > from top-left to bottom-right. > > 4, In shell environment, "drivers" command can show title part normally, but > it display the number of driver with a visible slow speed. "PCI" command still > has normal behave. > > > > > Debug step: > > 1, Doubt that call back function hook to the form will case this issue .Try to > remove the callback function for all the form. > > Issue still happened. > > 2. Because the setup has may loop invoke, Try to fixed a single delay point > for > more debug. > > In "DisplayPageFrame" when try to clear the screen for First Form display , > there is about 1-2 second single delay point inside > > ClearLines (0, gScreenDimensions.RightColumn, 0, > gScreenDimensions.BottomRow, KEYHELP_BACKGROUND); > > Trace the string passed to clear screen in this routing .The string is same > with > the UDK2014 normal case. This can preliminary exclusion the string analysis > issue and special font issue. > > 3, Deep debug, Delay is happened in "PrintInternal" try to invoke "Out- > >OutputString(XXXXXX)". > > This Out is point to system table conout , There is only one > SimpleTextOutput "GraphicsConsoleController" in consplitter list in our > project. > > And the GOP protocol install optrom in both UDK2014 and UDK2015 are > the same one. BTW, The logo display and post information display has no > delay symptom. > > 4, There is three "Out->OutputString(XXXXXX)" invoke "PrintInternal", String > is display by first two after remove the CHAR type. the last invoke is used > for > display space to meet the request display size. > > If we don't do this work. Symptom 2 Will have a great improvement. > _______________________________________________ > edk2-devel mailing list > [email protected] > https://lists.01.org/mailman/listinfo/edk2-devel _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
