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• Is there a app in android market let you send files easily from computer to your phone

  - by Mike

  For example I'm travelling and need an important document from my colleague right now. I know I can use email but the android email app works so slow. Is there an app that does just that?

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• Performance difference in simulator and device in my game. Why ?

  - by srikanth rongali

  Hi, I am writing a small shooting game using cocos2d. It's working good in simulator. But when testing in the device, the animations of sprites are slow and they are stucking. The images I used are CCSprites. And I used CCAnimation for the animation of the images. Why the game acting different in simulator and device ? Thank you.

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• What about buffering FileInputStream?

  - by Pregzt

  I have a piece of code that reads hell of a lot (hundreds of thousand) of relatively small files (couple of KB) from the local file system in a loop. For each file there is a java.io.FileInputStream created to read the content. The process its very slow and take ages. Do you think that wrapping the FIS into java.io.BufferedInputStream would make a significant difference?

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• Looking for a simple alternative to Thread.Sleep

  - by George

  HI, During the development of my app, I was using Thread.Sleep to give our external devices some time to adjust to settings before making queries, as they are quite old and slow. I now want to replace these with something a bit more stylish and correct. Does anyone have a simple way to "wait" for a device rather than sleep, bearing in mind the device does not let us know when it is ready, so a wait is about as good as we can do !?? Regards, George.

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• Programming books from cover to cover in one-shot?

  - by Sahat

  Is it a good idea to just read the entire programming-related book, assuming within your grasp of 250-400 pp.? Or take it slow and go through it taking your time trying to understand absolutely everything.

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• Any suggestion for mobile datepicker

  - by Binay

  I'm building mobile widget based on javascript and html for which I need a calendar module build on javascript. I tried UI datepicker but its quite slow when runs on phone. any suggestion is going to help me alot.

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• Most efficient way to draw circles for polygon outlines

  - by user146780

  I'm using OpenGL and was told I should draw circles at each vertex of my outline to get smoothness. I tried this and it works great. The problem is speed. It crippled my application to draw a circle at each vertex. I'm not sure how else to fix the anomaly of my outlines other than circles, but using display lists and trying with vertex array both were brutally slow. Thanks

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• What is AppEngine database "cold start time"?

  - by Issumanual

  One of the more common complaints I have read about the AppEngine database (for Java) is that it is extremely slow when it come to "cold start time". What does this mean? And is it something I should be worried about?

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• How to store data with N columns

  - by iconiK

  I need a way to store an int for N columns. Basically what I have is this: Armies: ArmyID - UINT UnitCount1 - UINT UnitCount2 - UINT UnitCount3 - UINT UnitCount4 - UINT ... I can't possible add a column for each and every unit, so I need a fast way to store the number of each units in an army (you might have guesses it's for a game by now). Using XML is not an option as it will be dead slow.

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• MySQL doesn't use index in join query

  - by Kocsonya Laci

  I have two tables: comments(id(primary key), author, ip(index)) and visitors(id(primary key), date_time, ip(index)) I want to join them like that: SELECT visitors.date_time FROM comments LEFT JOIN visitors ON ( comments.ip = visitors.ip ) WHERE comments.author = 'author' LIMIT 10 It works, but very slow.. In EXPLAIN it shows that it doesn't use the index on the visitors table: id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE comments ref author author 78 const 9660 Using where 1 SIMPLE visitors ALL NULL NULL NULL NULL 8033 Any ideas? Thanks!

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• How to delete all objects for a given entity from the ManagedObjectContext

  - by E-Madd

  I don't want to use the reset method for my ManagedObjectContext. I only need to remove all of the objects for a specific entity, but I don't see any methods for doing this. Selecting all of the objects for a specific entity and looping over each and deleting them works, but it's very slow.

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• how to get the colors on the screen better then get pixel? (c++)

  - by blood

  i made a program that uses the colors of pixels from the screen but getpixel is slow so is there a better way to find the color of pixels. i don't care if i get the full screen or one pixel at a time but the main thing is speed.

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• how many div's can you have before the dom slows and becomes unstable?

  - by Max Fraser

  I am developing a jQtouch app and each request done via ajax creates a new div in the document for the loaded content. Only a single div is shown at any one time. How many div's can I have before the app starts getting unresponsive and slow? Anyone have any ideas on this?

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• Migrated windows application from VS2008 to VS2010

  - by Reddy M

  Hi, I have converted my windows application projects from Visual Studio 2008 to Visual Studio 2010, Everything fine but Application is running very slow in 2010. Same Application is running in good performance in 2008. Any one can help me what could be the wrong. I am using Visual Studio 2010 RC (Release Candidate) Version.

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• Objective-C and Protocols

  - by SpecialK

  Do protocols come with any overhead? (ie. obvious benefits aside, do they slow things down?)

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• mysql innodb:innodb_flush_method

  - by Daniel

  in the following link http://dev.mysql.com/doc/refman/5.1/en/innodb-parameters.html#sysvar_innodb_flush_method it says:Different values of this variable can have a marked effect on InnoDB performance. For example, on some systems where InnoDB data and log files are located on a SAN, it has been found that setting innodb_flush_method to O_DIRECT can degrade performance of simple SELECT statements by a factor of three. Why O_DIRECT could slow down the select statement?

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• what is the fastest-best PHP IDE on windows?

  - by vegatron

  hi I've tried a few php IDEs , but still searching for the FASTEST one all Java based IDEs are too slow, I have 2 computers to work, my home pc which is too fast, and my laptop witch is good , but cant handle a heave software. and I have to work on them both, so I'm looking for the best free ide which is fast I'm not talking about text-editors , because I already have np++ and its great, but looking for extra features to help me save time.. any tips?

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• Simple to program yet computationally difficult functions

  - by ViralShah

  I need an example of a slow Excel sheet that could exist in the real world. Problem is I'm not sure what sort of functions are computationally difficult. Are there any sort of (maths?) functions that are easy enough to program that they can be used in Excel, yet computationally expensive? Something which has a real world application is a bonus.

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• Display a loading message / gif

  - by Pankaj

  I am facing a problem on load pdf on browser. its working fine but slow in load. That's why i want to display a loading message / gif until it's fully loaded so the user isn't looking at a blank screen. My question is same as previous question http://stackoverflow.com/questions/1138232/html-embedded-pdfs-onload

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• How to manually build mysql cache

  - by hamstar

  I have a table of over 150,000 rows of which most would be updated daily. I have mysql caching turned on so the pages load faster however everytime the database is updated the pages load slow again, which I assume is the cache building itself again. So at the moment I have resorted to doing a wget -m --delete-after http://localhost/ on the server however this takes about 4 hours to complete and moves something like 13 gig. Is there a better way to do this?

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• Way to know if two partitions are in one physical hard disk without WMI?

  - by Alon

  Hey. I have those partitions (in Windows) for example: Hard Disk 1 - Partition C, Partition D Hard Disk 2 - Partition E Is there any way in a program language to know if for example partition C and partition D are in one physical hard disk without WMI? I don't want to use WMI because it's slow - for this example, it took for me 0.5 seconds. I need it to be fast. Thank you.

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• Refactoring tool

  - by Polaris

  I am using several months ReSharper 4.5 It's very powerfull tool but use a lot of system resources and VS working very slow with it. With which tool I can replace Resharper with the same functionality. Which refactoring tool do you use?

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• Relative slowness of SVN compared to perforce when showing revision logs

  - by Reddy

  I have used Perforce previously and in current project we are using SVN. I noticed that it is very slow seeing revision logs and to see its comparisons in SVN relative to Perforce. Is it because Perforce is a commercial solution or is it something with my SVN client(Smart SVN)?

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• LINQ to SQL .Count takes way to much process time and decreases performances.

  - by soldieraman

  LINQ to SQL .Count takes way to much process time and decreases performances. I am doing a recursive loop and for one child (lets call it parent) I have to check the number of children under it to make a decision if it should be included or not. The Count is too slow 8 ms :( for 120 parent records. Any ideas to make it quicker.

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• FOSS solution for a local machine: DNS

  - by Shyam

  Hi, I love my Mac. But I have always found that my DNS lookups are as slow, even while flushing caches and I travel over know roads on the Internet. I was wondering if someone would know something a bit more automatic/intelligent than /etc/hosts and less complex and iron forged as BIND. Thank you for your feedback and answers!

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