speed

How to Determine Processor’s Speed in Windows

To find out how fast the processor is, while in Win95/98, Go to Accessories / System Tools / System Information Click on Tools Select Windows Report Tool Click on the blue Change System File Selections towards the bottom of the window This will perform a short scan of your system files Your processor speed, memory, [...]

How to Display Link status,speed,duplex,statistics,MTU in Solaris 10

dladm is the admin utility for Data-Link Interface which helps to display informarthe like Link Status (UP/DOWN), Speed, Duplex, MTU, VLAN Tagged and crucially statistics of network traffic on each of the interfaces historically as well as in real time. dladm can also configure and admin Link Aggregation on multiple NICs which we will not [...]

How can indexing be accelerated in Solr

A few ideas: Include multiple documents in a single <add> operations. Note: there is no advantage in trying to post a huge number of docs in a single go. I’d suggest going no further than 10 (full-size docs) to 100 (tiny docs). Ensure you are not performing <commit/> until you need to see the updated [...]

How to Adjust Vista’s Visual Effects to Improve Performance

If Windows Vista is running slowly, you can speed it up by disabling up to 20 of it’s visual effects: like the transparent glass look, the way menus open or close, or whether shadows are displayed. To adjust the visual effects: 1.  Go to Start >> Control Panel >> Performance Information and Tools 2.  Select [...]

Database Replication in MySQL – Step by Step Guide

Replication enables data from one MySQL database server (called the master) to be replicated to one or more MySQL database servers (slaves). Replication is asynchronous – your replication slaves do not need to be connected permanently to receive updates from the master, which means that updates can occur over long-distance connections and even temporary solutions [...]

Essential Linux Server Administrator Commands

Command Summary Use arp Command mostly used for checking existing Ethernet connectivity and IP address Most common use: arp This command should be used in conjunction with the ifconfig and route commands. It is mostly useful for me to check a network card and get the IP address quick. Obviously there are many more parameters, [...]

How to Build a diskette-based bandwidth management system – PicoBSD

Many users, despite having a good Net connection, complain about poor surfing and download speeds. While an organization could pay for additional bandwidth, a better option might be to manage the bandwidth they already have. There are numerous bandwidth management software tools available. In this article we will explore managing network bandwidth using the dummynet [...]

An Introduction to Basic IPv4 Routing

All of the operations considered in this article are operations upon a router, whether that router is a Linux box or Cisco dedicated hardware or some other type of machine. In this chapter I consider the traditional methods of IPv4 routing as using static configurations that are manually input by the network administrator. 1.1 Traditional [...]

How to Boost performance by a good partitioning scheme

Although a PC used for writing doesn’t need to be a high-performance computer, its performance can be improved by a good partitioning scheme. The biggest boost comes from my Paging partition on drive H, which is found on my second physical disk. I use this partition to boost performance in the following ways: Move the [...]

How to Install and Configure the eAccelerator PHP cache on Apache

If you are looking for a way to speed up your PHP pages on Apache, this is the software you want to install. Huge performance gains can be had when using this software to precompile and cache your PHP pages, and it is very simple to install.

How to Speed Up DNS requests by keeping a cache of responses to your dns requests on your hard disk

Let say you are on an expensive satellite link that can barely provide enough bandwidth for your company’s Internet Access and you will want to do whatever you can to get as much as possible out of this link. Moreover, occassionally you loose power from the utility company, long enough for your UPS to run [...]

How to Speed Your File System Up By 40% – Linux

Every time a file is read from your Linux ext3 partition it writes back a attribute to the file detailing the last access time. There are very few programs that actually use this to operate and it slows everything down. Disabling atime and diratime on your Linux ext3 file systems can improve disk performance up [...]

How to speed up raid1 resync ?

RAID 1 is usually implemented as mirroring; a drive has its data duplicated on two different drives using either a hardware RAID controller or software (generally via the operating system). If either drive fails, the other continues to function as a single drive until the failed drive is replaced. Conceptually simple, RAID 1 is popular for those who require fault tolerance and don’t need top-notch read performance. A variant of RAID 1 is duplexing, which duplicates the controller card as well as the drive, providing tolerance against failures of either a drive or a controller. It is much less commonly seen than straight mirroring.

How to change ethernet card settings – Linux

Here’s some scenario wherein your network card seems to fail. At times, it shows you statistics of sending but not receiving packets, or it is physically connected but show you that the linkis not present at all. If you are sure that it is not driver or cable issues related, below are pointers of changing [...]