Blog E

HW-59T - Improving performance with the Windows Performance Toolkit

refer: http://channel9.msdn.com/Events/BUILD/BUILD2011/HW-59T

Note:

• Motivation for performance analysis:
  • Performance related to multiple layered impact such as : hardware, OS, other application and process impact.
• Stage of performance improvement:
  • Preception –> Measurement –> Analysis.
  • It will be back and forth after analysis and re-preception.
• Tool list:
  • Trace Capture: Windows Performance Recorder
  • Tacce Analysis: Windows Performance Analizer
• Things to look out:
  • Don’t assume you know what’s wrong.
  • Don’t enable too much instrumentation
  • Don’t trace longer than you need.

PLAT-203T Async everywhere: creating responsive APIs & apps

refer: http://channel9.msdn.com/Events/BUILD/BUILD2011/PLAT-203T

Note:

• Async only support on some API:
  • XAML, Tile on UI
  • GPS and portable debice on Device
  • All network and communicate
  • Applifetime, Authentication, Crytography on Fundamental
• Await
  • Await is a simple way to against async API.
  • Await will make the async highest priority and let the compiler know here need to wait the result come back. Code will run as sequencial.
• Error handling
  

  try {

  FileOpenPicker p = new FileOpenPicker();

  p.FileTypeFilter.Add(".jpg");ry

  var operation = p.PickSingleFileAsync();

  operation.Completed = (IAsyncOperation<StorageFile> f) =>

  {

  MyButton.Content = f.GetResults().FileName;

  };

  operation.Start();

  catch(…) {}

  • try catch will only cover RED one, it need refine code to cover whole scope

  try {

  FileOpenPicker p = new FileOpenPicker();

  p.FileTypeFilter.Add(".jpg");

  MyButton.Content =

  (await p.PickSingleFileAsync()).FileName;

  } catch(Exception e) {}

  • It will separate into “RED” and “Green” one but still cover on try catch.
• 5 top tips from presenter.
  • Don’t worry about the COM apartment.
  • Remember to start your operation.
  • File picker cancel != Async Cancel
    • It will complete but return NULL.
    • “use exception for exceptional things”
  • Don’t worry about Dispatcher.Invoke…
  • Don’t worry about the concurrency

Refer: http://blogs.msdn.com/b/ericlippert/archive/2010/10/29/asynchronous-programming-in-c-5-0-part-two-whence-await.aspx

APP-186T - Build advanced touch apps in Windows 8

refer: http://channel9.msdn.com/Events/BUILD/BUILD2011/APP-186T

• Major point of touch app design:
  • Unify pen and touch into PointerPoint
  • Get mouse and pen for free
  • performance performance and performance
• Touch and Gesture support in framework
  • Metro app with HTML or XAML—> Gesture event
  • ICoreWindow –> Using point (touch simulate mouse click)
  • Windows Runtime –> PointerPoint with GestureRecognizer
• PointerPoint:
  • Whole related point implement is here, HID data also can get using PointerPoint.
• GestureRecognizer:
  • It just like the Win7 multiple touch support on MSFT, it support kind of gesture such as:
    • Tap, Hold, rotate and Scale
  • But more support on Win8 such as:
    • HoldWithMouse?
    • RightTap
      • To simulate with right click on mouse, such your finger about right click here.
      • mmmm….. it should be MSFT patent here for right click.
• For desktop developer, MSFT also support full Windows Runtime about Gesture support –> Great!
  • WM_Point –> the same as usual
  • InteractionContexts –> mirror GestureRecognizer. Don’t forget WM_TOUCH and WM_GESTURE still support here.
  • Pointer device –> identify source device (touch panel, mouse or other.)

It need note that Windows 8 has two version of IE (it should say, one application but two entry for different mode)

• Desktop IE
• Metro IE

But it is very tricky, if you type “open http://Web” on desktop explorer will open “Metro IE”

When you try to use this command to open web side, please note metro browser will be default option, not desktop browser.

ShellExecute(NULL,TEXT("open"), TEXT("http://msdn.microsoft.com"), TEXT(""),NULL,SW_SHOWNORMAL);

To specific using desktop browser, it should specific command on [HKEY_CLASSES_ROOT\http\shell\open\command]

APP-209T Build polished collection and list apps in HTML5

refer: http://channel9.msdn.com/Events/BUILD/BUILD2011/APP-209T

• Collection: A set of related user content.
• This session talking about how to write customized list view by WinJS by uing
  • Data Source
  • Item Render (CSS)
  • Layout (WinJS.UI.GridLayout)
• It could be easy to select image list view import your data source and put basicc control on your list view.
• Multi-select already support just add one propoties on it. (selectionMode = ‘multi’)
• ListView is easy to grouping if you could provide detail data of each item, group rule and group render (to descript how to group).
• Symantic Zoom:
  • It is a way to zoom out/zoom in by semantic  (such of “category”, “date”). It look like “Group By”.
  • ListView also provide semantic zoom.
  • Easy to implement to change <div id> to “zoomOutView” and related data control.
• If app is snapped (snapped on side).

APP-737T - Metro style apps using XAML - what you need to know

Refer: http://channel9.msdn.com/Events/BUILD/BUILD2011/APP-737T

This session talking about XAML for Metro style application implement. Focus on XAML for C/C++/C#/VB on Metro style application development.

1. Consistent with WPF and silverlight
2. New in Windows 8 Metro
   1. New look and support for touch
   2. Deployment by Windows Store
   3. Tile –> splash screen to application
3. New XAML UI Control
   1. Build in “Grouping”
   2. Windows 8 look and feel and its “selection model”
   3. Media player on Metro Style
   4. Grid view and Flip view
   5. Application Bar: Swipe from bottom/top to display
   6. Manipulation and gestures: It could handle rotation on Button_Clicp event.
4. Metro Style App Concept
   1. Diversity of display and resolution
   2. Layout changed
      1. Snapped(small one on split), Filled (big one on split) and Full Screen
      2. It could be tested on simulator on VS2011 CTP.
5. Metro style app lifetime
   1. Background apps are “Suspended”
      1. App notified.
   2. App will terminated when memory is low
      1. App will not notified.
   3. Event:
      1. Application.Current.Suspending –> Save state when suspend
      2. Application.Current.Resuming –> Restore state when resume

APP-116T - Prepare your apps for Windows 8 and beyond

Refer: http://channel9.msdn.com/Events/BUILD/BUILD2011/APP-116T

This is talking about application compatibility on Windows 8.

1. Windows 8 is compatible with apps that run on Windows 7
2. OS version increasement
   1. Application should not set upper bound for version handle
   2. Windows 8 version is 6.2
3. DWM (Desktop Windows Manager) always ON
   1. If application try to turn off it, it will failed silently.
   2. Color depth must on 32-bit (for DWM limitation) but lower could be simulated
4. Startuo application changed
   1. Apps on “Start” should goes to “task scheduler” or “automatic maintance”
5. .NET 3.5 demanded
   1. Default is .NET 4.5 it could enable if user install .NET 3.5 application.
6. Use Windows Resource Widely
   1. Use RegExpandSZ for path query
   2. New error code add one
      1. Some SUCCESSED might goes to FAILED.
7. Manifest your executable
   1. Need add DPIAWARE for your application.
   2. Application compatibility <compatibility xmln..>
      1. Starting on Win7, if no this tag treat it as Vista application.
   3. Metro Style Application should managed it manifest
      1. <OSMinVersion><OSMaxVersionTested> to manage your metro app.

Actually, Windows CTP Compatibility Cookbook provide more overview for this.

APP-123T - Enabling trials and in-app offers in your Metro style app
refer: http://channel9.msdn.com/Events/BUILD/BUILD2011/APP-123T

1. Trail is really matter
   1. 70 times download, 10 times revenue and 10% conversion.
2. In-App Offer
   1. 72% revenue comes from app which present “In-App offers”
   2. 48% comes from “In-App offers”
3. Flxibility option for this.
   1. Use your existing commerce
      1. maintain relationship, subscription and consumable phuchases.
   2. Ad supporteds
      1. Choice of ad controls
   3. One time purchase
      1. Time limited trail and features differentiated trails.
   4. Purchase over time
      1. Persisent purchase and Expiring purchase.
4. Implement basic
   1. Check License
      1. It could use simulate since store still no open
   2. Get latest listing data
   3. Prompt for purchase

PLAT-775T/PLAT-776T - Your Metro style app, video and audio, Part 1/Part 2

refer:  http://channel9.msdn.com/Events/BUILD/BUILD2011/PLAT-775T
refer: http://channel9.msdn.com/Events/BUILD/BUILD2011/PLAT-776T

It discussion about media API and Media element:

1. Using media API could easy to build up tailored user experience application with little domain knowledge.
2. HTML 5 standard <audio><video>
   1. DXVA full support
   2. You can creat rich media by CSS, JS and DOM.
3. Windows 8 enhancement
   1. 3D video (Stereo 3D)
      1. S3D still not work on CTP version
   2. Audio/Video effect and extensibility
   3. Zoom/Mirror
   4. Audio output selection
   5. Background audio
   6. DRM
   7. Streaming media to TV and Audio systems
4. System-wide support format
   1. File name:
      1. MP4/ASF
   2. Video:
      1. H264/VC1
   3. Audio:
      1. AAC/MP3/WMA
5. Simple HTML5 video player all related feature: Seeking, bookmark, play/pause, channel switching, capture feature already support on build-in API.
6. Media Focus:
   1. When app own media focus video could be see and heard
   2. When suspends it will remove from active list, and app will mute
   3. When select second media, it will leave original focus to new one.
7. Media format extensibility
   1. Custmize your app specific support format
   2. Extension are  packaged and local on your app (only for your app, no share)
   3. Extension could be naive (C++/COM) Media Fundation component.
8. Extending your custom format
   1. Register DLL with in App manifest on MF(Media Fundation)
      1. Such audio/video source filter or demux
   2. In your app, register custom  streaming/data format with ExtensibilityManager
      1. Register your custom video/audio encoder/decoder
   3. Custom effect could be insert effect pipeline

BPS-1006 Tools for building Metro style apps

Refer video: http://channel9.msdn.com/Events/BUILD/BUILD2011/BPS-1006

Note:

It is introduction of VC2011, here is some major demo topic as follows:

• Auto spell which is powerful with Visual Assist
  • Auto spell, finding related function and method. It is easy to go.
• JS debugging:
  • It is cool to have debugger for JS which also support all debugging window (variable, watch…)
• Parallel stack debugging windows:
  • It has visualization debugging tab for parallel which could show currently threading and each thread dependency.
• RT XAML editor:
  • During debugging you also could editing XMAL code by select on UI or select on code segment to show UI change on fly.
• Simulator debugger:
  • I think it is very cool stuff for me such we don’t have multiple touch panel on hand but we need implement some related to “Share”, “Search” which need finger slip.
  • It also provide “finger”, “rotate”, “zoom” and it could simulate to different resolution for Metro UI debugging.
• Asynchronous programming (await, async)
  • Refer here for more detail:
    • Something about C# 5.0
    • Asynchronous Programming in C# 5.0 part two: Whence await?
  • Concept:
    • Will folk another thread after “await” and response on original message loop to ensure response quickly.
    • It look like to cut original message thread,one back to main and another keep doing async task.
    • It help us to using linear thinking to do asynchronous programming
  • Sample: (from here)

    async void ArchiveDocuments(List<Url> urls)
    {
      Task archive = null;
      for(int i = 0; i < urls.Count; ++i)
      {
        var document = await FetchAsync(urls[i]);
       if (archive != null)
           await archive;
        archive = ArchiveAsync(document);
       }
    }

BPS-1005 Platform for Metro style apps

Refer video: http://channel9.msdn.com/Events/BUILD/BUILD2011/BPS-1005

Note:

• What is major different between Metro UI application with desktop application?
  • No overlay window architect (all full screen)
  • No message box related API.
• Device access all using asynchronous to ensure all application could response on time.
• About “Broker” in WinRT concern as follows:
  • Impact system integrity.
  • Impact user data
  • Impact User private
• HTML5/CSS/JS great for Metro Apps
  • MSFT try to enlarge their engineer base and try to draw Web engineer’s attention to join Metro Apps development.
• Package your application:
  • Application could be easily to pack and upload to MSFT with one click on VS11.
  • All package need digital signature before upload to App Store

TOOL-789C Bringing existing C++ code into Metro style apps

Refer video: http://channel9.msdn.com/Events/BUILD/BUILD2011/TOOL-789C

Note:

• About Metro UI app:
  • No registry, GDI, MessageBox coding.
• Here is work/not work desktop app
  • Work:
    • Standard C++
    • Parallel pattern
    • Win32 (WinRT and Win32 subset)
    • ATL (ATL subset)
  • Not work:
    • MFC
• About WinRT
  • Refer: Windows Runtime(WinRT) 揭秘
  • Any old DLL component could be easy to pack to WinRT  component if no depends limited list as above.
• Q&A
  • Two Metro UI don’t have any way to communicate for now, currently it still isolate.
  • For disable API, it might change depends engineer feedback to MSFT.
  • All Metro UI need component could be pack to WinRT component and package today to delivery to end-user via store.
  • Shared component is not work on Metro UI, all component must be side-by-side. Because you could not use CoCreateInstance by CLSID, so there is unique CLSID on Metro world.
  • Whole app on Metro UI are isolate due to security and system integrity.

上一篇文章: http://www.evanlin.com/blog/archives/001100.html

就像我前一篇文章一樣，我已經把Buildbot裝好了，並且可以跟P4連線(不過僅僅在於periodic[定期])。但是無法正常的透過Scheudler(也就是無法偵測到有最新的CODE更改來trigger build)。

I found Buildbot could not using "Scheduler Scheduler" but work well on "Periodic scheduler". As I check in Buildbot site it maybe three known issue as follows:

1. #101 Set "revision" property when using computeSourceRevision
2. #127 got_revision not tracked for perforce
3. #229 Build properties "revision" and "got_revision" not populated for P4

Although I already change this by the patch but it sill could not fix the "scheduler". I think I will check with Buildbot team as well.

要轉錄請務必標示文章出處:   BlogE www.evanlin.com/blog

甚麼是BuildBot?

Buildbot 是一套由Python撰寫的client-server 架構的專案source code追蹤用的伺服器。 主要可以拿來做以下的用途:

• Code quality tracing: 可以定期或是只要有新的變動就主動下載source code並且build。 可以查出來哪個變動讓程式build不過。
• Multiple platform compiler testing:  針對一份程式碼要對應到多個platform 或是多整module, Buildbot 提供了很好的方式可以幫助你確認這件事情。
• Unit testing:  使用Buildbot 可以定期幫你的程式做unit testing。(當然~ unit testing program 得是你自己有準備好的)

需要的軟體:

在這裡先介紹所有你需要的軟體，可以事先去download 下來。

• Python 2.44 Win32 install binary python-2.4.4.msi
• Install Zope 3.01 final zope.interface-3.0.1.win32-py2.4.exe
• Install Pywin32 extension pywin32-212.win32-py2.4.exe-modtime=1217535935&big_mirror=0&filesize=5409684
• Install twisted — 2.0 Twisted_NoDocs-8.1.0.win32-py2.4.exe
• Buildbot (0,79) downloading.php-groupname=buildbot&filename=buildbot-0.7.9.zip&use_mirror=nchc
• MFC library for python mfc71.dll

以上的版本已經確定在XP SP2 可以正確安裝並且執行無誤。希望各位也去下載適當版本。必須注意如果把Python換成新的版本(2.5 or 2.6)反而可能會造成安裝失敗。

或者你也可以去以下位置下載懶人包 。

懶人包: http://www.badongo.com/cn/file/12490044

安裝流程:

• Install python 2.44 binary http://www.python.org/ftp/python/2.4.4/python-2.4.4.msi
  1. Check to make sure your PATHEXT environment variable has ";.PY" in it — if not set your global environment to include it.
  2. I also modified PATH (in the same place as PATHEXT) to include C:\Python24 and C:\Python24\Scripts . This will allow ‘python’ and (eventually) ‘trial’  to work in a regular command shell.
• Install Zope 3.01 final http://www.zope.org/Products/ZopeInterface/3.0.1final/zope.interface-3.0.1.win32-py2.4.exe
• Install Pywin32 extension http://downloads.sourceforge.net/pywin32/pywin32-212.win32-py2.4.exe?modtime=1217535935&big_mirror=0&filesize=5409684
  1. The installer complains about a missing DLL. Download mfc71.dll from the site mentioned in the warning
  2. (http://starship.python.net/crew/mhammond/win32/) and move it into c:\Python24\DLLs (http://starship.python.net/crew/mhammond/downloads/mfc71.dll )
• Install twisted — 2.0 http://twistedmatrix.com . http://tmrc.mit.edu/mirror/twisted/Twisted/8.1/Twisted_NoDocs-8.1.0.win32-py2.4.exe
• Download Buildbot http://sourceforge.net/project/downloading.php?groupname=buildbot&filename=buildbot-0.7.9.zip&use_mirror=nchc
• Command lone on buildbot path, run "python setup.pyinstall".
• Change buildbot.bat from C:\Python24\Scripts to modify to @python C:\Python24\Scripts\buildbot %*
• Check "buildbot –version" if show version correct it mean install finish

接下來你還必須要設定master.cfg 才能正常的啟動。

設定Buildbot:

最近在做結婚光碟的時候，發現製作光碟的UVS(Ulead Video Studio) 一直無法正常的執行。由於我自己就是做這行的，於是直接下去看整個crash call stack。發現CRASH 在一開始~~~整個在initialized filter 的時候死在 (Quicktime.qts)。

經過許多文章裡面的尋找

• YouTube - Re: Quicktime.qts error in Macromedia Projector

• QuickTime 7

這幾篇的文章都提到~ 要先將Quicktime.qts 移除，我就直接把 C:\Windows\System32\Quicktime.qts 移除

結果發現無法改善~~~~ 並且我無法順利的移除Quicktime(Uninstall Quicktime)

後來我發現~~ 因為我有裝一套Storm player 而這次有問題的Quicktime.qts 是在 那個目錄裡面的~~~~~

所以我想到正確的解法是~~~

1. 尋找Quicktime.qts (Find out all Quicktime.qts)
2. 將它改名字 (Rename it)
3. 移除 Quicktime (uninstall quicktime)
4. 重新安裝一次 (reinstall again)

這樣果然就成功了!!!!! 

本來跑好好的MT 去讀取MySQL

結果最近忽然出現

Got an error: install_driver(mysql) failed: Can’t load
‘/usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi/auto/DBD/mysql/mysql\
.so’
for module DBD::mysql: libmysqlclient_r.so.12: cannot open shared object
file: No such file or directory at
/usr/lib/perl5/5.8.0/i386-linux-thread-multi/DynaLoader.pm line 229. at (eval
4) line 3 Compilation failed in require at (eval 4) line 3. Perhaps a
required shared library or dll isn’t installed where expected at
/var/www/cgi-bin/mt/lib/MT/ObjectDriver/DBI/mysql.pm line 48

我去查的RPM 結果

[root@www RPMS]# rpm -qa|grep -i mysql
php-mysql-4.3.0-2mdk
MySQL-client-4.0.11a-5mdk
MySQL-common-4.0.11a-5mdk
MySQL-bench-4.0.11a-5mdk
perl-Mysql-1.22_19-6mdk
libmysql12-4.0.11a-5mdk
MySQL-4.0.11a-5mdk

使用 CPAN 更新的時候出現 error

CPAN.pm: Going to build C/CA/CAPTTOFU/DBD-mysql-4.007.tar.gz
Can’t exec “mysql_config”: No such file or directory at Makefile.PL line 76.
Cannot find the file ‘mysql_config’! Your execution PATH doesn’t seem

後來去看文章發現以下文章有很像的問題

http://bytes.com/forum/thread78379.html

http://forums.sixapart.com/lofiversion/index.php/t20654.html

本來用CPAN 查了很久~~ 但是怎麼查都會出問題

我在查的時候 我發現我CPAN 的 DBD:mysql 忽然不見了
但是本來都有安裝的

後來安裝 DBD:mysql 的時候
發現需要 mysql_config
查詢之下  需要安裝 mysql-devel 的版本
那是要 MySQL 4.1 以上的版本才有的
不過 我的 MySQL 是4.0.11a

後來要看到網路上有人講

要找找 libmysqlclient.so.10

開始去找libmysqlclient.so.10

http://rpmfind.net/linux/rpm2html/search.php?query=libmysqlclient.so.10

裝了不少的RPM 仍然不WORK

最後找到

libmysql12 裡面也有libmysqlclient.so.10

所以強制upgrade libmysql12 就可以了

rpm -U libmysql12-4.0.11a-5mdk 即可