Question of size for the buffer DAQmxRegisterEveryNSamplesEvent

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• What is the best size for a buffer overflow in BlackBerry?

  Hi all

  In my application, I need to read data from an input stream. I put the current size of the buffer for reading as 1024. But I saw in some applications Android size memory buffer has been preserved as 8192 (8 KB). Is there a specific advantage if I increase the buffer size in my application up to 8 k?

  Any expert opinion will be highly appreciated.

  First thing to note is that the method "isAvailable()', in my experience, does not work on OS 5.0 and earlier versions.  It is attached to the OS 6 (at least in my tests).

  Because isAvailable() has been broken, (and for other reasons of demand) that I put in place for a socket connection is that each message is preceded by a length.  So I read in the socket connection, the length of the message, and then the actual data.  This is done with no lock - in other words, I read the entire message, regardless of their size.  I recommend you do the same.  The message must exist in full somewhere, so it makes no difference if it's in memory managed by the socket connection, or some memory managed by you.

  Note also, until the 5.0 OS, when you made reading so that you get all the data fill the buffer you had - in other words, it was blocking.  After the OS 6.0, playback can finish without giving you all the data.

  In your case, you could work in a post OS 6.0 only, so you could use isAvailable() - create a buffer of this size and read all that.  I don't see that it makes a difference if you have the bytes of memory managed by taking, or managed by you.

  But in fact, I would say that the best approach is one that makes your simple treatment.  So, for example, if you know that the following message is 200 bytes, then read 200 bytes and then process this message.  Then read the next message.

  You could spend a lot of time trying to manage the buffer to match the underlying socket buffers.  I don't know exactly how the underlying socket of BlackBerry processing code, but it is not put data directly in your buffers.  Then let it manage its buffer size to optimize the network, you manage your buffer size to optimize your treatment.  That will work best for everyone.

• You want to know the size of the buffer on the mk3 5...

  ... and/or the number of raw files full resolution, it may contain. I was wondering if I used to pull a maximum of six bursts of shooting, writing the same question speed card?

  dbltapp wrote:

  ... and/or the number of raw files full resolution, it may contain. I was wondering if I used to pull a maximum of six bursts of shooting, writing the same question speed card?

  It does not matter to 6 shots.

  See: http://www.learn.usa.canon.com/resources/articles/2012/eos_understanding_burst_rates.htmlp

  The conservative estimate of the size of the buffer (in RAW mode) is that the buffer will hold about 13 shots until the camera is to wait for the data to be written in order to clear enough space for another buffer.   I actually tested it with my 5 d III and have found that, in practice, the number is somewhat higher - having about 18 shots before he slowed because of the limitations of the buffer.

• Range the range must belong to the size of the buffer.

  Hello

  I'm pretty stumped on this problem. I have a chart with a picture of Chartcollections. The tables are filled in at the same time. Sometimes, quite randomly, I get this exception. In this case, I had three parcels posted:

  System.ArgumentOutOfRangeException was unhandled
  HResult =-2146233086
  Message = range slice must belong to the size of the buffer.
  Parameter name: length
  Real value was 3.
  Source = NationalInstruments.Common
  ParamName = length
  StackTrace:
  to NationalInstruments.Restricted.Guard'1.Satisfies (Boolean condition, Func 4 exceptionCreator, String format, Object [] args)
  NationalInstruments.Restricted.NIValidation.IsInRange [T] (1 keep, Boolean isInRange, format String, Object [] args)
  to NationalInstruments.DataInfrastructure.Primitives.RawDataStore'1.Slice (Int32 startIndex, Int32 length)
  to NationalInstruments.DataInfrastructure.Buffer'1.Slice (Int32 startIndex, Int32, Func 2 traitFilter length)
  to NationalInstruments.DataInfrastructure.Buffer'1.NationalInstruments.DataInfrastructure.IBuffer.Slice (Int32 startIndex, Int32 length)
  at NationalInstruments.Controls.Internal.DefaultAdjusterStep.a (IDictionary 2 A_0)
  at NationalInstruments.Controls.Internal.DefaultAdjusterStep.c (IDictionary 2 A_0)
  at NationalInstruments.Controls.Internal.DefaultPipelineDataProcessor.a (DefaultDataItemDescription [] A_0)
  at NationalInstruments.Controls.Internal.DefaultPipelineDataProcessor.a)
  at System.Windows.Threading.ExceptionWrapper.InternalRealCall (Int32 numArgs, delegate callback, object args)
  to the millisecond. Internal.Threading.ExceptionFilterHelper.TryCatchWhen (Object source, method Delegate, Object args, Int32 numArgs, delegate catchHandler)
  at System.Windows.Threading.DispatcherOperation.InvokeImpl)
  at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext (Object state)
  at System.Threading.ExecutionContext.RunInternal (ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
  at System.Threading.ExecutionContext.Run (ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
  at System.Threading.ExecutionContext.Run (ExecutionContext executionContext, ContextCallback callback, Object state)
  at System.Windows.Threading.DispatcherOperation.Invoke)
  at System.Windows.Threading.Dispatcher.ProcessQueue)
  at System.Windows.Threading.Dispatcher.WndProcHook (IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean & handled)
  to the millisecond. Win32.HwndWrapper.WndProc (IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean & handled)
  to the millisecond. Win32.HwndSubclass.DispatcherCallbackOperation (Object o)
  at System.Windows.Threading.ExceptionWrapper.InternalRealCall (Int32 numArgs, delegate callback, object args)
  to the millisecond. Internal.Threading.ExceptionFilterHelper.TryCatchWhen (Object source, method Delegate, Object args, Int32 numArgs, delegate catchHandler)
  to System.Windows.Threading.Dispatcher.LegacyInvokeImpl (priority DispatcherPriority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
  to the millisecond. Win32.HwndSubclass.SubclassWndProc (IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
  to the millisecond. Win32.UnsafeNativeMethods.DispatchMessage (MSG & msg)
  at System.Windows.Threading.Dispatcher.PushFrameImpl (DispatcherFrame frame)
  at System.Windows.Threading.Dispatcher.PushFrame (DispatcherFrame frame)
  at System.Windows.Threading.Dispatcher.Run)
  at System.Windows.Application.RunDispatcher(Object ignore)
  System.Windows.Application.RunInternal (window)
  System.Windows.Application.Run (window)
  at System.Windows.Application.Run)
  at MyProject.FinalTest.Specific.GUI.App.Main (c:\Sandbox\Specific2\MyProject.FinalTest.Specific.GUI\obj\Debug\App.g.cs:line 0)
  at System.AppDomain._nExecuteAssembly (RuntimeAssembly assembly, String [] args)
  at System.AppDomain.ExecuteAssembly (String assemblyFile, Evidence assemblySecurity, String [] args)
  at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly)
  at System.Threading.ThreadHelper.ThreadStart_Context (Object state)
  at System.Threading.ExecutionContext.RunInternal (ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
  at System.Threading.ExecutionContext.Run (ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
  at System.Threading.ExecutionContext.Run (ExecutionContext executionContext, ContextCallback callback, Object state)
  at System.Threading.ThreadHelper.ThreadStart)
  InnerException:

  I don't know even where to start looking! Can someone please give me some advice? Thank you!

  I found the problem!

  I had a timer by calling the method, which has updated the plots of a queue. If there is too many signals, emptying of the queue can take longer than the next call timer, and two threads try to access the graphics paralel. I know that set the idle timer for the queue reading and turn it on after and looks of problem solved!

  Thanks for the idea of bouncing, that's the direction I had to start looking!

• How to increase the size of the buffer

  Hi, I would like to ask how can I increase the size of the buffer?

  My problem is that the generation cannot be started,

  because the buffer size is too small by the way I use DAQ Assistant.

  Choose the size of the buffer: 1

  Minimum required buffer size: 2

  so, how do I solve it?

  Thank you

  Chris

  Hello Chris, can I ask what material you use. Currently the DAQ Assistant in your code example is configured to run continuous Acquisition and thus expects a type of dynamic data. This can be seen by the small red spot known as a point of stress and is shown when LabVIEW must convert the data to a different type. There are two options you can try to solve this problem.

  (1) change the type of Acquisition "(on request) 1 sample" in the DAQ Assistant, he will write your input value for the cDAQ with each iteration of the while loop

  (2) change of data entry strikes at a waveform

  Here are some articles that you might find useful http://zone.ni.com/devzone/cda/tut/p/id/5438

  Hope this is useful

  Philippe

  

• What are the data size of the buffer on PX1394E - 3 50

  Hello

  I bought this drive a few days ago and I'm a little confused on the
  the size of the data buffer. The box indicates 16 MB, Toshiba web page says 8 MB, etc...

  Nobody knows, what are the data buffer size of this model?
  Is there a SW or the request to meet with whom?

  BTW, great car, fast, noise, however, extremely when it comes to finding large files.

  Thank you
  Francisco

  Hello

  I have lurked around a bit and it seems that your drive has buffer of 16 MB that is absolutely definitely sure. To check the details of your computer, you can use the tool "Sisoft Sandra". You can download [url href = http://www.sisoftware.net/index.html?dir=&location=downandbuy&langx=en&a=] here [/ URL].

  After download, just install it and you will get all information about your computer, as the size of the buffer of your external hard drive.

  Welcome them

• What is the best size for the gigantic memory file pagefile.sys virtual?

  pagefile.sys is gigantic 8 GB of files in Windows 7, I want free space of HDD on my SSD for faster backup purposes, but I don't want to hinder the performance that comes first.

  I have 8 GB of DDR3 memory. What is the recommended size for the pagefile.sys for optimal performance?

  Tuesday, April 6, 2010 20:44:59 + 0000, EcoWhale.com wrote:

  > I wonder what would be the best size to choose for the performance as I have 8 GB of physical memory (assuming an SSD with a lot of space)?

  I recommend leaving it alone and let windows decide for himself,
  rather than make any custom setting. It works very well.
  Ken Blake, Microsoft MVP (Windows desktop experience) since 2003
  Ken Blake

• the font size for the page numbers in the index

  I use 10 FM, creating an index for a book.  I can adjust the font size for the text down to 9 points, but page numbers are stuck at 12 points.  I can do 9 point individually, but they return to 12 points, when I save the book.  What should I do to get page numbers to stay in the point 9?    The same thing happens if I use the character or paragraph Designer.

  Earle Fox

  In the ... IX.fm file, what are the attributes of the tag IndexIXpara font by default ?

  No chance that they have been rejected by a character Format or a simple substitution of element prototype <$pagenum> on The IX reference Page?

• Change the size for the pre defined sizes (smartphone, Tablet, desktop computer) Windows permanently?

  In Dreamweaver, there are 3 sizes of window pre defined (see photo). How can I change the size for the smartphone permanently?

  

  Siegfried Bolz wrote:

  Adding of new display sizes is not the problem, I want to change the default values for the shortcut icons on my screenshot.

  No problem here on my desktop version of CS6.  See these photos of my test results:

  

  

  I don't use CC so I don't know why it only allows you to change the size of the window.  In your picture, you have the arrows you will need to click to get the size of the right window, AFTER you have entered a new size.  That's how I did on my version of CS6.

  Good luck.

• How to set the size of the buffer of interruption UDP XP 64-bit

  I need to increase the size of the incoming buffer Windows UDP interruption and also fine-tune Windows for optimal UDP performance.

  (It is the buffer used by the Windows service interrupt routine to handle incoming UDP, not setsocket for the application buffer).

  We have a real-time system, Windows is the only computer connected to the chassis generating UDP datagrams to about 800 Mbps.

  Hi _Doug Bell.
   

  Your question of Windows is more complex than what is generally answered in the Microsoft Answers forums. It is better suited for the IT Pro TechNet public.

  Please post your question in the Forums Pro Windows XP IT

• Accuracy of size for the FIFO DMA

  I started to develop a code of RT for cRIO with DMA FIFO function application. A few questions have very fundemental

  fluctuated around in my mind. The FIFO DMA is supposed to be made up of two components FPGA)

  side & on the RT side).

  1 the total THAT FIFO composed of FPGA side FIFO + RT side FIFO?

  2. the FIFO of DMA size that I put inside the FPGA target in the Project Explorer refers to what just FPGA)

  FIFO or Total size)? If it's just FPGA side FIFO, how big is the RT side FIFO together (is

  It automatically assigned by RTOS free memory function)?

  3. in addition, size defined programmatically by using DMA-configure is the equivalent of setting the size

  in the Project Explorer?

  4. Finally, how can I estimate the maximum size of the FIFO that I am allowed to use?

  Thanks in advance for any response.

  Hi Shiva419,

  1. Yes, at least a DMA FIFO has these two sides

  2. I just read in another reply that the size you set for the FIFO in the Project Explorer is the size of the FIFO on the side FPGA. The size of the FPGA on the side of the RT is much larger (default is 10000 items).

  http://forums.NI.com/NI/board/message?board.ID=280&message.ID=5108&query.ID=99697#M5108

  Mandar-

• How to increase the size of the buffer veristand UDP?

  Hello!

  I'll have some lost data of veristand screen and I want to increase the size of the UDP buffer. This is a new option in veristand 2011 that I can read on this link: http://zone.ni.com/reference/en-XX/help/372846C-01/veristand/whats_new/ (improving the workspace section).

  Someone at - it now haow to do?

  Thanks in advance,

  Miguel.

  Do you mean how to do it from the VeriStand workspace? On your graphical work space click on setup to enter the chart configuration dialog box. In the configuration dialog box, you will see where you can enter a new value for the UDP buffer size.

• Can I change the font size for the mail application?

  For the purposes of mail, I want to change the font size.  In other words, the size of everything on the screen when I'm watching and reading mail (do not as much care of the font size in the mail I made up).  Hereby, I refer to the list of the mails which is located on the left of the screen, where it lists who it is from and the subject and the right of the screen, where the content of the selected mail mail message appears as follows.  In fact, it might just be a type of "zoom" as well, not necessarily affecting the size of font in itself.  Want just everything what I see on the screen, reading, to be bigger. Have looked under 'settings' and 'help' and can't find anything about it in two places.

  My mother is 90 and said: "it's so small, I can hardly read it.  Wow, thought new Windows 8 was supposed to be a new world, easy and user friendly; and yet, here, I am an "expert" was using the PC since the beginning of the Radio Shack, start Windows, etc... but have to post this question here.

  Thanks if you can help with that!

  Some of them depends on the capabilities of your display.  If she has enough pixels to do without causing interference, you can adjust the DPI (dots per inch) of scale and it will expand the size of the text and the items for you.

  To see if you can do it, go to your charm to search and type 'scale '.  Choose the search result it shows and then try the configuration in larger size.

• image sizes for the photo and moodboards clipping masks

  Hello

  I place images/photos to the web and Pinterest on my plans to work in Illustrator for both mood/inspiration cards as well to use with clipping masks.

  Should I adjust the size of the image files in photoshop before placing them so that my illustrator file does not become too large?

  Or can I use object > rasterize > and choose the resolution/ppi to do the same thing?

  Thank you

  LM

  elizabethm56272654 wrote:

  Should I adjust the size of the image files in photoshop before placing them so that my illustrator file does not become too large?

  Of course, you must define your own strategies for these questions according to your needs. Sure raster image data, excess will swell your files unnecessarily, but according to the availability of extra storage space in your computing environment and your ultimate output intent, may not be worth the extra time and effort for the goal-size things in Photoshop before placement. Only you can decide that priority. If the images are 'of the web and Pinterest', chances are, they are already low-resolution, and you would not shave number of bytes out of them anyway.

  Or can I use object > rasterize > and choose the resolution/ppi to do the same thing?

  N ° which is designed for elements vector rasterize at your chosen resolution. It will not change the resolution to something that is already rasterized.

• question about size for android devices

  Hello, I created an app for the ipad and I want the same app for android, my question is about the size.

  What zize I must set in indesign to create the application for android devices? or can I use the same (size of the ipad) and the app will be resised for all devices?

  Thank you

  If you are using 1024 x 768 and PDF that should work for almost any device of Tablet.

  You can visit this page for compatibility with non - iOS feature devices: http://helpx.adobe.com/digital-publishing-suite/help/supported-feature-list.html