compression

I have a very weird problem.. I really do hope someone has an answer because I wouldn't know where else to ask. I am writing a cgi application in C++ which is executed by Apache and outputs HTML code. I am compressing the HTML output myself - from within my C++ application - since my web host doesn't support mod_deflate for some reason. I tested this with Firefox 2, Firefox 3, Opera 9, Opera 10, Google Chrome, Safari, IE6, IE7, IE8, even wget.. It works with ANYTHING except IE8. IE8 just says "Internet Explorer cannot display the webpage", with no information whatsoever. I know it's because of

I am trying to send an image to a server. Before sending it, I am reducing its size and quality, and then fixing any rotation issue. My problem is that, after rotating the image, when I save it, the file is bigger than before. Before rotation size was 10092 and after rotation is 54226 // Scale image to reduce it Bitmap reducedImage = reduceImage(tempPhotoPath); // Decrease photo quality FileOutputStream fos = new FileOutputStream(tempPhotoFile); reducedImage.compress(CompressFormat.JPEG, 55, fos); fos.flush(); fos.close(); // Check and fix rotation issues Bitmap fixed = fixRotation

I'm trying to enable http response compression on Spring boot web application. It works for some user-agents, and for some reason doesn't for others (specific cases below). My basic question is: Why http response compression (gzip) in Spring Boot works only for some User-Agent headers and where it is configured. Spring boot reference doesn't say anything about it. I prepared simple web application with enabled compression: sample spring-boot-compression app There are integration tests that verify that gzip encoding works for some cases only. I configured spring boot with: server: tomcat:

I have an int and float array each of length 220 million (fixed). Now, I want to store/upload those arrays to/from memory and disk. Currently, I am using Java NIO's FileChannel and MappedByteBuffer to solve this. It works fine, but it takes near about 5 seconds (Wall Clock Time) for storing/uploading array to/from memory to disk. Now, I want to make it faster. Here, I should mention most of those array elements are 0 ( nearly 52 %). like: int arr1 [] = { 0 , 0 , 6 , 7 , 1, 0 , 0 ...} Can anybody help me, is there any nice way to improve speed by not storing or loading those 0's. This can

I have a directory that contains several files. I want compress this folder to a zip or tar.gz file. How can I do his work in C#? Giorgi You can use DotNetZip Library . It has quite rich and useful features. EDIT: string[] MainDirs = Directory.GetDirectories(DirString); for (int i = 0; i < MainDirs.Length; i++) { using (ZipFile zip = new ZipFile()) { zip.UseUnicodeAsNecessary = true; zip.AddDirectory(MainDirs[i]); zip.CompressionLevel = Ionic.Zlib.CompressionLevel.BestCompression; zip.Comment = "This zip was created at " + System.DateTime.Now.ToString("G"); zip.Save(string.Format("test{0}.zip"

By default, newer versions of Spark use compression when saving text files. For example: val txt = sc.parallelize(List("Hello", "world", "!")) txt.saveAsTextFile("/path/to/output") will create files in .deflate format. It's quite easy to change compression algorithm, e.g. for .gzip : import org.apache.hadoop.io.compress._ val txt = sc.parallelize(List("Hello", "world", "!")) txt.saveAsTextFile("/path/to/output", classOf[GzipCodec]) But is there a way to save RDD as a plain text files, i.e. without any compression ? I can see the text file in HDFS without any compression with this code. val