I'm working on a problem that requires caching paginated "search" results: http://stackoverflow.com/questions/347277/paginating-very-large-datasets The search works as follows: given an item_id, I find the matching item_ids and their rank. I'm willing to concede not showing my users any results past, say, 500. After 500, I'm going to...
Here are the estimates the system should handle: 3000+ end users 150+ offices around the world 1500+ concurrent users at peak times 10.000+ daily updates 4-5 commits per second 50-70 transactions per second (reads/searches/updates) This will be internal only business application, dedicated to help shipping company with worldwide ship...
I'm finishing up on a 3D planet with ROAM (continuous level of detail). My goal now is to have good quality render using textures. I'm trying to find a way I can use a tiling system (small good textures combined), but in a way I can take advantage of my CLOD mesh. Current algorithms (from what I've found) using this tiling systems pro...
Hi. I'm using unix scoket for data transferring (SOCK_STREAM mode) I need to send a string of more than 100k chars. Firstly, I send length of a string - it's sizeof(int) bytes. length = strlen(s) send(sd, length, sizeof(int)) Then I send the whole string bytesSend = send(sd, s, length) but for my surprise "bytesSend" is less tha...
Now I have a c language project which include three directories /bin, /inc and /src. All of header files (.h) are included in /inc and all of source(.c) files are stored in /src, i.e. a.c, b.c, c.c..., the final generated executable file will locate in /bin. after compling with makefile, all of obj files will be generated in /src/obj li...
I'm trying to set up a new class for my web application, rewriting my code starting from original procedural programming. Since I need to populate my object using many different(complex) queries, and this object'll be stored in session, I decided to create another static class containing all long queries. Is it more convenient to define...
iam having problem with assigning one big decimal value to another so i am trying such as creating one temp big decimal and add 0 to another big decimal BigDecimal temp = new BigDecimal(0); dropStartValue = temp.add(newCounterValue); i only want simply do the operation below on big decimals dropStartValue = newCounterValue ...
First of all apologies if there is already a topic like this but I have not found... I need to know how to handle a really big number such as the result of 789^2346: #include <iostream> #include <cmath> using namespace std; int main () { cout << pow(789,2346) << endl; } ...
Hello .. In my database of 5 million records .. Structure of the table: CREATE TABLE IF NOT EXISTS `music` ( `id` int(50) NOT NULL auto_increment, `artistname` varchar(50) NOT NULL, `songname` varchar(50) NOT NULL, `duration` varchar(6) NOT NULL, `url` varchar(255) NOT NULL, `server` int(5) NOT NULL, PRIMARY KEY (`id`), ...
Hello, I am trying to build a solution for windows XP in Visual Studio 2005. This solution contains 81 projects (static libs, exe's, dlls) and is being successfully used by our partners. I copied the solution bundle from their repository and tried setting it up on 3 similar machines of people in our group. I was successful on two machin...
I need help working with very big numbers. According to Windows calc, the exponent 174^55 = 1.6990597648061509725749329578093e+123. How would I store this using C (c99 standard). int main(){ long long int x = 174^55; //result is 153 printf("%lld\n", x); } For those curious, it is for a school project where we are implementing the RS...
Hi all I want to read a very big text file(a log file of a web app)and do some processing. Is there any Framework to help doing such work ? The file is 100M+,shall I use mutil-thread ? best regards ...
Hi, I have two files of data, 100 char lines each. File A: 10^8 lines, file B: 10^6 lines. And I need to find all the strings from file B that are not in file A. At first I was thinking feeding both files to mysql, but it looks like it won't ever finish creating an unique key on 10^8 records. I'm waiting for your suggestions on this. ...