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  • How to Convert DMG Files to ISO Files on Windows

    - by Taylor Gibb
    The DMG image format is by far the most popular file container format used to distribute software on Mac OS X. Here’s how to convert a DMG file into an ISO file that can be mounted on a Windows PC. First head over to this website and grab yourself a copy of dmg2img by clicking on the win32 binary link. Once the file has downloaded, open your Downloads folder, right click on the file, and select extract all from the context menu. The Best Free Portable Apps for Your Flash Drive Toolkit How to Own Your Own Website (Even If You Can’t Build One) Pt 3 How to Sync Your Media Across Your Entire House with XBMC

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  • Exploring In-memory OLTP Engine (Hekaton) in SQL Server 2014 CTP1

    The continuing drop in the price of memory has made fast in-memory OLTP increasingly viable. SQL Server 2014 allows you to migrate the most-used tables in an existing database to memory-optimised 'Hekaton' technology, but how you balance between disk tables and in-memory tables for optimum performance requires judgement and experiment. What is this technology, and how can you exploit it? Rob Garrison explains.

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  • Virtual Machine files on ramdisk doesn't run faster than on physical disk

    - by Landy
    I installed total 36G memory (4x8G + 2x2G) in the host (Windows 7) and I used ImDisk to create a 32G ramdisk and format it to NTFS file system. Then I copied the virtual machine (in VMware Workstation format) folder, including vmx, vmdk, etc... to the new created ram disk. Then I tried to power on it in VMware Workstation. What made me surprised is that the performance is not better than before. It cost almost the same time to power on the Windows 7 VM. I check the Resource Monitor in the Windows 7 host, and the statistics of CPU, disk, network are rather normal. The memory has reported 3000+ hard fault/sec when guest OS boot then drop to 0 after the guest powered on. Any idea about this issue? I had thought the performance of ramdisk will be better than physical disk in this case. Am I wrong? Thanks.

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  • Projectiles in tile mapped turn-based tactics game?

    - by Petteri Hietavirta
    I am planning to make a Laser Squad clone and I think I have most of the aspects covered. But the major headache is the projectiles shot/thrown. The easy way would be to figure out the probability of hit and just mark miss/hit. But I want to be able to have the projectile to hit something eventually (collateral damage!). Currently everything is flat 2D tile map and there would be full (wall, door) and half height (desk, chair, window) obstacles. My idea is to draw an imaginary line from the shooter to the target and add some horizontal&vertical error based on the player skills. Then I would trace the modified path until it hits something. This is basically what the original Laser Squad seems to do. Can you recommend any algorithms or other approaches for this?

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  • Help file formats - MSHA files v CHM files

    - by TATWORTH
    Recently I was tasked with producing a help file from a C#/WPF/Crystal Reports application using Sandcastle. I have previously blogged about the problems in doing that and the change that is going into the next version of Sandcastle that allows the vagaries of Crystal (this missing BusinessObjects.Licensing.KeycodeDecoder) to be handled. At http://social.msdn.microsoft.com/Forums/en-US/devdocs/thread/0b110502-f5bb-4c56-96a5-4347a2a7a68a/, I describe how I tried each of the formats. Two of the formats could not be built and the error messages were not exactly helpful as to the cause. These two formats turned out to be obsolete. The MSHA format worked but was not suitable for a standalone application, so that left me with the older CHM format. I therefore asked on that thread "will the HTML Help 1 (CHM) format continue to be supported for the foreseeable future?".Rob Chandler, MVP in help systems, gave a very helpful answer, to the effect that there is not yet a replacement for the CHM format.

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  • How to view multiple log files as one file in unix/linux

    - by user42679
    Hi, I was wondering if there is a convenient way in linux/unix to read multiple log files as one. More specifically, I would like to view a sequence of log files (app.log, app.log.1 app.log.2, etc) as one big file using normal unix tools (vi, less, etc). When the EOF is read the tool will automatically move to the beginning of the next file. During my work I have to analyze uat/prod logs to investigate and solve problems. The fact that I need to traverse many log files disturbs my work and causes delays. Any ideas?

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  • How can we tell what driven the Private bytes spiking.

    - by ronin
    I have websites running on .Net Framework 2.0 environment. For recent every day my website becomes slow at certain time and I need to recycle my app pool. I checked the log file found that the private bytes will spike during that time slot. Through some research I already know that the managed code and unmanaged code consists of Privates and we can identify which one cause the spike based on "Bytes in all heaps" counter. But I can't find a way to dig deeper. Is there any way that I can find out what driven my private bytes spike? How can we see what the private bytes are being used for? Thanks, Ronin

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  • When to unload graphics object from main memory?

    - by piotrek
    I writing my resource mangaer, and I consider about how it can work for graphics objects (like textures, meshes). I think about this : I want to load texture (in pseudocode): Texture t = resMgr.GetTex("image.png"); and GetTex make something like this: load texture from disk to main memory create texture object (load it to gpu memory) unload texture from main memory I consider about 3 step, does game engines that you know unload meshes/textures after load them into gpu memory ?

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  • who delete my files?

    - by akalter
    I have some linux server. on two of our server we have mysql. we have daily backup on both machine. but the script different. i saw both scripts. on one of them i saw the "delete older files" algorithm, but in the other this is happening but not from the script. i trying to know who dletes my files, because of that i want to use same script on both machine because of that in the script with the deletion i also copy the files to the another server, and i want to do that in both servers. Who have an idea who delete my older backups? Thank you!

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  • who deleted my files?

    - by akalter
    I have some linux servers. On two of our server we have MySQL. We have daily backup on both machine. But the scripts are different. I saw both scripts. On one of them I saw the "delete older files" algorithm, but in the other this is happening but not from the script. I am trying to discover who deletes my files, because of that I want to use same script on both machine because of that in the script with the deletion I also copy the files to the another server, and I want to do that in both servers. Who have an idea who deleted my older backups? Thank you!

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  • Accessing large log files on a unix machine with textpad

    - by Jason
    Hi, I'm interested to access large log files on a unix server with textpad. (textpad for history reasons, i personally prefer ofcourse less awk grep etc) but I have many personal who rather be using textpad they have years of experience with it and can tweak it to do whatever they want. The problem is that if i connect for example with winscp to get the log files to textpad it first fetches the full log and user needs to wait and it bloats etc. I would rather the textpad to somehow access the unix machine and get only the relevant segment of the log file (large log files could be GB) anyone knows how can this be achieved?

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  • Is an average RAM usage per Apache process of 43 MB "normal" for a Social Networking site? [closed]

    - by Programmer
    I have a Social Networking site that runs on a single LAMP Server that handles everything. The average RAM usage per Apache process is 43 MB. Is that amount roughly within the expected range for a Social Networking site, or is it too high? If it's too high, where and how can I look to bring that average number down? (If you need more details to determine whether it's within the expected range or not, just let me know and I'll edit my question to provide them as best I can.)

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  • Windows GPO default mapped drives

    - by SteB
    Is there a way, using Windows GPO, to set up a list of "default" mapped drives that can be applied to a group of users? I runs small network and would like to make sure that certain groups of users (like Sales or Support) have the same network shares mapped to the same drive letters irrespective of which PC they log onto. This would make the setup of new users easier and allow the centralised administration of the network locations shared. Any links to examples and/or step-by-step guides would be greatly appreciated.

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  • Too many files open issue (in CentOS)

    - by Ram
    Recently I ran into this issue in one of our production machines. The actual issue from PHP looked like this: fopen(dberror_20110308.txt): failed to open stream: Too many open files I am running LAMP stack along with memcache in this machine. I also run a couple of Java applications in this machine. While I did increase the limit on the number of files that can be opened to 10000 (from 1024), I would really like to know if there is an easy way to track this (# of files open at any moment) as a metric. I know lsof is a command which will list the file descriptors opened by processes. Wondering if there is any other better (in terms of report) way of tracking this using say, nagios.

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  • Implementation ideas to store multiple files within a single file for faster access?

    - by eminemence
    My requirement is to store a large number of files within a single file.The files stored could be anything like images, videos or simple text files as well. I want some ideas to implement the same. I am thinking of implementing a file system within a file, but am not sure if its a good idea. The main area of concern here is the access time. Also I want to provide encryption for this single file. Any suggestions are welcome.

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  • DB12c In-Memory & JSON ?????

    - by katsumii
    ???8?18??20????????? DB12c PS1(PatchSet 1, 12.1.0.2.0)?????????JSON ??In-Memory Option ??????????????????????????????????????????????????????????????????????????In-Memory???????????????????????????????????????????????????????????????????????[????] Oracle Database 12c In-Memory?????????! (Oracle Technology Network Japan Blog)?Oracle Database 12c? Oracle In-Memory Option???? 8?28?(?)19:00 ~20:40 @  ??????????(??????)

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  • UITableView's NSString memory leak on iphone when encoding with NSUTF8StringEncoding

    - by vince
    my UITableView have serious memory leak problem only when the NSString is NOT encoding with NSASCIIStringEncoding. - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"cell"; UILabel *textLabel1; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; textLabel1 = [[UILabel alloc] initWithFrame:CGRectMake(105, 6, 192, 22)]; textLabel1.tag = 1; textLabel1.textColor = [UIColor whiteColor]; textLabel1.backgroundColor = [UIColor blackColor]; textLabel1.numberOfLines = 1; textLabel1.adjustsFontSizeToFitWidth = NO; [textLabel1 setFont:[UIFont boldSystemFontOfSize:19]]; [cell.contentView addSubview:textLabel1]; [textLabel1 release]; } else { textLabel1 = (UILabel *)[cell.contentView viewWithTag:1]; } NSDictionary *tmpDict = [listOfInfo objectForKey:[NSString stringWithFormat:@"%@",indexPath.row]]; textLabel1.text = [tmpDict objectForKey:@"name"]; return cell; } -(void) readDatabase { NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDir = [documentPaths objectAtIndex:0]; databasePath = [documentsDir stringByAppendingPathComponent:[NSString stringWithFormat:@"%@",myDB]]; sqlite3 *database; if(sqlite3_open([databasePath UTF8String], &database) == SQLITE_OK) { const char sqlStatement = [[NSString stringWithFormat:@"select id,name from %@ order by orderid",myTable] UTF8String]; sqlite3_stmt *compiledStatement; if(sqlite3_prepare_v2(database, sqlStatement, -1, &compiledStatement, NULL) == SQLITE_OK) { while(sqlite3_step(compiledStatement) == SQLITE_ROW) { NSString *tmpid = [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 0)]; NSString *tmpname = [NSString stringWithCString:(const char *)sqlite3_column_text(compiledStatement, 1) encoding:NSUTF8StringEncoding]; [listOfInfo setObject:[[NSMutableDictionary alloc] init] forKey:tmpid]; [[listOfInfo objectForKey:tmpid] setObject:[NSString stringWithFormat:@"%@", tmpname] forKey:@"name"]; } } sqlite3_finalize(compiledStatement); debugNSLog(@"sqlite closing"); } sqlite3_close(database); } when i change the line NSString *tmpname = [NSString stringWithCString:(const char *)sqlite3_column_text(compiledStatement, 1) encoding:NSUTF8StringEncoding]; to NSString *tmpname = [NSString stringWithCString:(const char *)sqlite3_column_text(compiledStatement, 1) encoding:NSASCIIStringEncoding]; the memory leak is gone i tried NSString stringWithUTF8String and it still leak. i've also tried: NSData *dtmpname = [NSData dataWithBytes:sqlite3_column_blob(compiledStatement, 1) length:sqlite3_column_bytes(compiledStatement, 1)]; NSString *tmpname = [[[NSString alloc] initWithData:dtmpname encoding:NSUTF8StringEncoding] autorelease]; and the problem remains, the leak occur when u start scrolling the tableview. i've actually tried other encoding and it seems that only NSASCIIStringEncoding works(no memory leak) any idea how to get rid of this problem?

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  • AVAudioRecorder Memory Leak

    - by Eric Ranschau
    I'm hoping someone out there can back me up on this... I've been working on an application that allows the end user to record a small audio file for later playback and am in the process of testing for memory leaks. I continue to very consistently run into a memory leak when the AVAudioRecorder's "stop" method attempts to close the audio file to which it's been recording. This really seems to be a leak in the framework itself, but if I'm being a bonehead you can tell me. To illustrate, I've worked up a stripped down test app that does nothing but start/stop a recording w/ the press of a button. For the sake of simplicty, everything happens in app. delegate as follows: @synthesize audioRecorder, button; @synthesize window; - (BOOL) application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // create compplete path to database NSString *tempPath = NSTemporaryDirectory(); NSString *audioFilePath = [tempPath stringByAppendingString:@"/customStatement.caf"]; // define audio file url NSURL *audioFileURL = [[NSURL alloc] initFileURLWithPath:audioFilePath]; // define audio recorder settings NSDictionary *settings = [[NSDictionary alloc] initWithObjectsAndKeys: [NSNumber numberWithInt:kAudioFormatAppleIMA4], AVFormatIDKey, [NSNumber numberWithInt:1], AVNumberOfChannelsKey, [NSNumber numberWithInt:AVAudioQualityLow], AVSampleRateConverterAudioQualityKey, [NSNumber numberWithFloat:44100], AVSampleRateKey, [NSNumber numberWithInt:8], AVLinearPCMBitDepthKey, nil ]; // define audio recorder audioRecorder = [[AVAudioRecorder alloc] initWithURL:audioFileURL settings:settings error:nil]; [audioRecorder setDelegate:self]; [audioRecorder setMeteringEnabled:YES]; [audioRecorder prepareToRecord]; // define record button button = [UIButton buttonWithType:UIButtonTypeRoundedRect]; [button addTarget:self action:@selector(handleTouch_recordButton) forControlEvents:UIControlEventTouchUpInside]; [button setFrame:CGRectMake(110.0, 217.5, 100.0, 45.0)]; [button setTitle:@"Record" forState:UIControlStateNormal]; [button setTitle:@"Stop" forState:UIControlStateSelected]; // configure the main view controller UIViewController *viewController = [[UIViewController alloc] init]; [viewController.view addSubview:button]; // add controllers to window [window addSubview:viewController.view]; [window makeKeyAndVisible]; // release [audioFileURL release]; [settings release]; [viewController release]; return YES; } - (void) handleTouch_recordButton { if ( ![button isSelected] ) { [button setSelected:YES]; [audioRecorder record]; } else { [button setSelected:NO]; [audioRecorder stop]; } } - (void) dealloc { [audioRecorder release]; [button release]; [window release]; [super dealloc]; } The stack trace from Instruments that shows pretty clearly that the "closeFile" method in the AVFoundation code is leaking...something. You can see a screen shot of the Instruments session here: Developer Forums: AVAudioRecorder Memory Leak Any thoughts would be greatly appreciated!

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  • .NET RegEx "Memory Leak" investigation

    - by Kevin Pullin
    I recently looked into some .NET "memory leaks" (i.e. unexpected, lingering GC rooted objects) in a WinForms app. After loading and then closing a huge report, the memory usage did not drop as expected even after a couple of gen2 collections. Assuming that the reporting control was being kept alive by a stray event handler I cracked open WinDbg to see what was happening... Using WinDbg, the !dumpheap -stat command reported a large amount of memory was consumed by string instances. Further refining this down with the !dumpheap -type System.String command I found the culprit, a 90MB string used for the report, at address 03be7930. The last step was to invoke !gcroot 03be7930 to see which object(s) were keeping it alive. My expectations were incorrect - it was not an unhooked event handler hanging onto the reporting control (and report string), but instead it was held on by a System.Text.RegularExpressions.RegexInterpreter instance, which itself is a descendant of a System.Text.RegularExpressions.CachedCodeEntry. Now, the caching of Regexs is (somewhat) common knowledge as this helps to reduce the overhead of having to recompile the Regex each time it is used. But what then does this have to do with keeping my string alive? Based on analysis using Reflector, it turns out that the input string is stored in the RegexInterpreter whenever a Regex method is called. The RegexInterpreter holds onto this string reference until a new string is fed into it by a subsequent Regex method invocation. I'd expect similar behaviour by hanging onto Regex.Match instances and perhaps others. The chain is something like this: Regex.Split, Regex.Match, Regex.Replace, etc Regex.Run RegexScanner.Scan (RegexScanner is the base class, RegexInterpreter is the subclass described above). The offending Regex is only used for reporting, rarely used, and therefore unlikely to be used again to clear out the existing report string. And even if the Regex was used at a later point, it would probably be processing another large report. This is a relatively significant problem and just plain feels dirty. All that said, I found a few options on how to resolve, or at least work around, this scenario. I'll let the community respond first and if no takers come forward I will fill in any gaps in a day or two.

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  • Flex 4 Spark VideoDisplay in Popup causes memory leak

    - by Ben
    Hi, I'm currently building an air app with FB 4. I have a custom control that contains a VideoDisplay control, and which loaded using the PopupManager. Using the profiler, i've noticed that every time the my popup is loaded the memory for it gets allocated, but when it's closed the memory is never recovered. There's nothing else holding a reference to the popup. And if I don't set the source of the VideoDisplay object, then there is no leak - but as soon as the source is set I get a leak. I can't see any method to force close the stream or anything on the spark VideoDisplay control. Any idea or suggestions? EDIT: I have tried setting the source to null before closing the popup but that doesn't change anything. Also, I'm not holding any event listener to the video

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  • Linq to SQL DataContext Windsor IoC memory leak problem

    - by Mr. Flibble
    I have an ASP.NET MVC app that creates a Linq2SQL datacontext on a per-web-request basis using Castler Windsor IoC. For some reason that I do not fully understand, every time a new datacontext is created (on every web request) about 8k of memory is taken up and not released - which inevitably causes an OutOfMemory exception. If I force garbage collection the memory is released OK. My datacontext class is very simple: public class DataContextAccessor : IDataContextAccessor { private readonly DataContext dataContext; public DataContextAccessor(string connectionString) { dataContext = new DataContext(connectionString); } public DataContext DataContext { get { return dataContext; } } } The Windsor IoC webconfig to instantiate this looks like so: <component id="DataContextAccessor" service="DomainModel.Repositories.IDataContextAccessor, DomainModel" type="DomainModel.Repositories.DataContextAccessor, DomainModel" lifestyle="PerWebRequest"> <parameters> <connectionString> ... </connectionString> </parameters> </component> Does anyone know what the problem is, and how to fix it?

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  • SQL 2008 SMO Database Status property memory leak.

    - by AKoran
    It appears there is a memory leak in the Status property of the SMO Database class. Using the code below with SQL 2005 SMO libraries works fine, but as soon as you use SQL 2008, the memory leak appears.... Any other good way of getting the database staus in SQL 2008? A quick example that magnifies the problem: private void button1_Click(object sender, RoutedEventArgs e) { for (int x = 0; x < 100; x++) { CheckStatus(); } } private void CheckStatus() { Server server = new Server("YourServer"); DatabaseCollection dbc = server.Databases; if (dbc.Contains("YourDatabase")) { DatabaseStatus dbStatus = dbc["YourDatabase"].Status; } }

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