gb ram

How to count the frequency of each word in a 2 GB file? when a beginner encounters a problem, count the frequency of each word in a 2 GB file, after modifying the memory limit, the error "Allowed memory size of xxxx bytes exhausted" is still reported. The total number of lines or characters in the test can be output. how can this problem be optimized? ini_set("memory_limit", "-1");function calcWordFrequence

In the IP address- gt; in the evaluation of geographic location conversion, the article mentions that using the ip2addr function to directly read IP addresses is the most efficient to directly read IP database files using the ip2addr function in the evaluation of IP address-> geographic location conversion., compared to using a MySQL database to store IP data, SQL queries are the most efficient. However, the IP database file QQWry. dat is GB2312 encoded. Now I need the geographic location result

Linux personal disk partitioning scheme (20 GB) host configuration I3 Virtual Machine 1 GB memory 20 GB hard disk capacity/boot 100 M storage files necessary to start the Linux system, including kernel files, boot menu configuration files, and other www.2cto.com/2G system root directory/tmp 4G stored some temporary file/swap 2G swap file systems used during syste

Collected and sorted out a perfect installation tutorial for Oracle 10 Gb in CenotOS Linux 5. Share your friends! Author: David Young (e4twood@gmail.com) Last Update: 2008-1-10 System Environment: CentOS Linux 5 Final Oracle Enterprise 10g R2 Hardware environment: CPU: Intel Pentium Dual-core @ 1.60G Memory: DDR 667 1G * 2 Dual channels HandDisk: SATA 160G I. Software Download CentOS Linux 5 Final: http://ftp.cse.yzu.edu.tw/pub/CentOS/5.0/isos/i386/ O

6 GB database import reports various errors solution bitsCN.com Tool selection I. Sqlyog is a powerful tool, but in the face of a 5G database, it can only strike, simply put, the local import can be, from the local import server can not. II. Phpadmin comes with this, but it's okay, but it's never used in the end, because it's invisible, because up to 50 MB, although you can modify the configuration file to upload but 5

In the evaluation of IP address- gt; geographic position conversion, ip2addr function is the most efficient function to directly read IP database files. compared with MySQL database, SQL queries are the most efficient. However, the IP database file QQWry. dat is GB2312 encoded. Now I need the geographic status results of UTF-8 encoding. If MySQL is used, data can be converted The article "IP address-> geographic status conversion evaluation" mentions that using the ip2addr function to directly r

PHP on several methods of dynamic conversion of GB encoding to UTF-8 evaluation. The article "IP address-Geographic location conversion evaluation" mentions that using the ip2addr function to directly read IP database files is the most efficient. compared with using the MySQL database to store IP data, SQL query is the most efficient way to use the ip2addr function to directly read IP database files. compared with MySQL database, SQL queries are the m

It's easy to use. md5_file is useless to 2 GB files. lt ;? Phpnbsp;?md5filemd5_file(quot=1.zip quot;); nbsp; echo $ md5file ;? The gt;code is very simple. if the md5value is obtained, if 1.zip is several hundred megabytes or smaller, the md5 value can be read. if the file is large and I test more than 2 GB, it is easy to use, md5_file is useless for 2 GB files

The computer on hand is still a second-hand machine bought in Kunming. It has been almost four years since, with M memory and 60 GB hard drive, when I first bought it, I had already fallen behind the times. Now, I am about to enter the ranks of antique machines. Finally, I thought about it and planned it. With the help of my colleagues, I moved my host back from the computer market. AMD dual-core, GB hard

According to foreign media reports, the Research Institute iSuppli recently said that Google's upcoming free network storage space may be as high as 50 GB. Google's network storage space will reach 50 GB At the end of November, it was reported that Google would launch the network storage service, allowing users to store files on Google servers on local computers. This service is free of charge, but u

. It is more concise and readable than multi-threaded code. This project was launched by EVE Online and is indeed strong in concurrency and performance. Similar to Python, you can consider replacing Python with the original system. :) Why MongoDB? Http://www.mongodb.org We can see many popular apps using MongoDB on the official website, such as sourceforge and github. What are the advantages of RDBMS? First, the advantage in speed and performance is the most obvious. It can be used not only as a

Create a boot disk for an image larger than 4 GB by using ultraiso, and use ultraiso4gb The ultraiso software is very convenient for boot disks. It is generally used for linux, windows, and Shenma. However, ubuntu generally only has 1-2 GB, windows desktop edition is usually about 3 GB, so you don't have to consider this issue. However, when you want to create

In 64-bit Linux, how does one run a 32-bit application? In the case of 32-bit programs, it is advantageous to use a 32-bit system and use RAMDISK to allocate unrecognized memory to the hard disk for virtual memory! Although the 64-bit system can recognize more than 3 GB memory, it cannot make 32-bit programs use more than 3 GB memory! With more than 3 GB of memor

When a CentOS 5.6 machine needs to upgrade the memory to 6 GB, the system is found to be 32-bit, so the search can enable the 32-bit system to support 4 GB memory or above. How does one enable 32-bit linux/Centos to support 8 GB memory? The kernel-based PAE installation supports a method larger than 4 GB memory. Linux/

Using the IP2ADDR function to read the IP database files directly is the most efficient, and SQL query is the most efficient one, compared with the MySQL database to store the IP data. However, the IP database file QQWry.dat is GB2312 encoded. Now I need UTF-8 coded geographic results. If you use the MySQL method, you can convert the data to the UTF-8 code when it is stored in the database. But QQWry.dat file can not be modified, only the output of the IP2ADDR function can be dynamically convert

Oracle 10 Gb dmp how to import 9i Problem description: How to migrate database objects in oracle 10 Gb to 9i. the 10g and 9i servers are respectively built on two machines in the LAN and can access each other. problem Analysis: Some information has been found online, indicating that it is not feasible to import 10 Gb exported dmp files to 9i. only 9i can be impor

Php5.2Json cannot properly handle Chinese and GB encoding solutions. The json function added by php5.2 is very popular. However, tests have found that json_encode has a problem in Chinese processing. 1. unable to process the GB encoding, and all the GB encoding will be replaced with null php5.2. The new json function is very popular, but it has been tested and fo

Oracle Database 10 Gb provides a secure and scalable foundation for Oracle Identity Management. The Oracle Internet Directory (OID) is implemented as an application running on the Oracle database at 10 Gb, this allows the OID to support several T-bytes of directory information on a single server or each node in a grid. Oracle Database 10 Gb protects raw data with

In the past few days, I have been busy with this optimization solution and have never had time to play. After a busy period of time, I finally won the project? Do not setProgramLet the MySQL database handle the problem. It is just MySQL. Problem 1: optimize the business execution speed for MySQL community5.5 + to improve the overall system efficiency Test server hardware environment: Intel Core I5, 8 GB memory, 7200rpm hard drive, win7 Professiona