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  • Reduce memory usage

    - by Flintoff
    I have just installed the standard default desktop configuration of Ubuntu 12.10 (Quantal Quetzal). My PC only has 1GB of RAM and is struggling a little. What steps can I take to reduce the memory overhead of the standard install? If it makes a difference, I use Firefox, and a terminal most of the time. Simply running those two applications I see: free -m total used free shared buffers cached Mem: 938 873 64 0 5 167 -/+ buffers/cache: 701 237 Swap: 959 158 801

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  • Bring the Beauty of the Emerald Isle to Your Desktop with the Ireland Theme for Windows 7

    - by Asian Angel
    This beautiful theme shows the Emerald Isle at its’ best with images of green landscapes, gorgeous seaside cliffs, cities at night, waterfalls, ancient rock formations, and more. The theme comes with 17 wallpapers and 22 Celtic system sounds to help bring Ireland straight to your desktop in style. Download the Ireland Theme [Windows 7 Personalization Gallery] How to Enable Google Chrome’s Secret Gold IconHTG Explains: What’s the Difference Between the Windows 7 HomeGroups and XP-style Networking?Internet Explorer 9 Released: Here’s What You Need To Know

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  • If a blogger writes a whole article about my website, how important are anchor texts?

    - by Noam
    If there is a full article about my web-service, with my brand name in the title, and many relevant keywords that I would like Google to consider in my rankings, and links to my web-site with simple anchor text such as <brand name> and <page title>. Does it make a big difference if I get links to the actual keywords I'm after, or is it enough that these keywords are part of the written text?

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  • Write and fprintf for file I/O

    - by Darryl Gove
    fprintf() does buffered I/O, where as write() does unbuffered I/O. So once the write() completes, the data is in the file, whereas, for fprintf() it may take a while for the file to get updated to reflect the output. This results in a significant performance difference - the write works at disk speed. The following is a program to test this: #include <fcntl.h #include <unistd.h #include <stdio.h #include <stdlib.h #include <errno.h #include <stdio.h #include <sys/time.h #include <sys/types.h #include <sys/stat.h static double s_time; void starttime() { s_time=1.0*gethrtime(); } void endtime(long its) { double e_time=1.0*gethrtime(); printf("Time per iteration %5.2f MB/s\n", (1.0*its)/(e_time-s_time*1.0)*1000); s_time=1.0*gethrtime(); } #define SIZE 10*1024*1024 void test_write() { starttime(); int file = open("./test.dat",O_WRONLY|O_CREAT,S_IWGRP|S_IWOTH|S_IWUSR); for (int i=0; i<SIZE; i++) { write(file,"a",1); } close(file); endtime(SIZE); } void test_fprintf() { starttime(); FILE* file = fopen("./test.dat","w"); for (int i=0; i<SIZE; i++) { fprintf(file,"a"); } fclose(file); endtime(SIZE); } void test_flush() { starttime(); FILE* file = fopen("./test.dat","w"); for (int i=0; i<SIZE; i++) { fprintf(file,"a"); fflush(file); } fclose(file); endtime(SIZE); } int main() { test_write(); test_fprintf(); test_flush(); } Compiling and running I get 0.2MB/s for write() and 6MB/s for fprintf(). A large difference. There's three tests in this example, the third test uses fprintf() and fflush(). This is equivalent to write() both in performance and in functionality. Which leads to the suggestion that fprintf() (and other buffering I/O functions) are the fastest way of writing to files, and that fflush() should be used to enforce synchronisation of the file contents.

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  • How can I make the date/time applet display on a single line?

    - by EmmyS
    I just updated from Lucid to Natty (thought it was going to be Maverick, but my About Ubuntu menu shows that it is Natty, which "was released in April 2011" - who knew the developers had mastered time travel?!) In any case, the default date/time applet in my gnome panel is now displaying on two lines (date on top of time) instead of one line like it used to. Any way to get it back on one line? I've tried the instructions shown here, but it doesn't seem to make a difference.

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  • Viral Marketing Vs Search Engine Optimization

    Viral Marketing and Search Engine Optimization are two famous tools of the web that have been very influential in changing the landscape of websites that have aspired to make a difference over the internet. Both the processes have been dedicated towards one motto, with it being the welfare of the website and its increased popularity over the internet.

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  • How can I model a pendulum blade?

    - by Micah Delane Bolen
    Like this one from Saw V: What primitive shape/s would you start out with? How would you transform the primitive shape/s to give it a nice, smooth, sharp blade on one side without distorting the entire object in a weird way? I tried starting out with a cylinder and then subtracting the top half using a duplicate cylinder and a difference modifier, but I ended up distorting the entire object when I tried to pull the "blade" edges together. I think I need to add lattices to smoothly "sharpen" the edge of the blade.

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  • When does a "scripter" become a "programmer"?

    - by makerofthings7
    Is there a difference between 'scripters' and 'programmers'? What is the dividing line between scripters and programmers? Perhaps all scripters be considered to be a programmer. If not all scripters can fall into the same camp, what about those people who use external objects such as COM objects, Win32's, etc. via an interop library? As far as script languages I'm thinking of are (but not limited to) perl, bash, javascript, powershell, and batch files.

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  • From the Tips Box: Free Shipping with Amazon Filler, Repairing Ethernet Cables, and Emergency Stickers

    - by Jason Fitzpatrick
    Once a week we round up some great tips from the tips box and share them with everyone. This week we’re looking at easy Amazon filler items, repairing the tab on Ethernet cable connectors, and a humorous data-security sticker. How to Own Your Own Website (Even If You Can’t Build One) Pt 1 What’s the Difference Between Sleep and Hibernate in Windows? Screenshot Tour: XBMC 11 Eden Rocks Improved iOS Support, AirPlay, and Even a Custom XBMC OS

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  • Evolution laggy due to IMAP -profile or due to some odd Sync -issue?

    - by Izzy
    I'm fighting with Evolution. Basically it's working fine -- but it is very slow to react in certain situations. Helper questions Could it be that changing away from Bonobo has to do with slowing-down? There might be some trouble with the new engine and "asynchronous actions". What to do about it? Are there e.g. any configuration files? I want to get the previous "working mood" back. How can I speed this thing up? Different scenarios when sending a mail, the composer window hangs there inactive for a couple of seconds, everything grayed out. Though there is a green check mark saying it's sent, I'm not sure a) why it's still blocking everything and b) whether I could simply close it without "breaking"/"losing" anything. In earlier versions, the composer window was closing pretty fast, and one could see the message being stored into the local "outbox" until it was sent, and one could immediately continue with the next task. I prefer that behaviour over the current, where I cannot do anything in the application until the window closes. switching between modules. Coming from mail and switching to the address book takes a couple of seconds. Same for switching to the calendar. I read about different "possible causes" and tried a few things: I only have 3 local address books, so no networking should be involved here. To make sure, I switched to offline mode and then tried to access the address book. No noticeable difference. I use 3 Google Calendars. Switching to offline mode made a minor difference, but so minor that it also could be "imagination" since one might have expected this in this case according to some reports, disabling the tasks should help. Well, it didn't in my case, as I don't use them regularly (just two local items stored here) Maybe I should also mention that I'm using the KDE4 desktop (so no Unity or Gnome, though both is installed on the computer). And I did not have this issue before I updated to 12.04.

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  • htaccess url rewrite

    - by user761396
    i used to have a rewrite rule to RewriteRule ^([^/]+)\.htm$ index.php?c=$1 [NC] RewriteRule ^([^/]+)\.htm/([0-9.]+)$ index.php?c=$1&amt=$2 [NC] now, i have to change to RewriteRule ^1/([^/]+)\.htm$ index.php?c=$1 [NC] RewriteRule ^1/([^/]+)\.htm/([0-9.]+)$ index.php?c=$1&amt=$2 [NC] RewriteRule ^2/([^/]+)\.htm$ index2.php?c=$1 [NC] RewriteRule ^2/([^/]+)\.htm/([0-9.]+)$ index2.php?c=$1&amt=$2 [NC] (the difference is adding a subdirectory) my question is how to redirect my old ones to the 1/ subdirectory? thank you

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  • Linking competitor with the same keyword i am targeting : Good or Bad for Seo?

    - by Badal Surana
    i am linking one of my competitors from my site for the same keyword which is i am targeting for my site.(My competitor is paying me for that) For Example: Me and my competitor both are targeting on keyword "foo" and my competitor paying me for linking his site from my site with keyword "foo" What i want to know is if i do that will my site's position go down in Google search results? or it will make no difference??

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  • Is it recommended to apply the new said-great 200 line Linux kernel patch?

    - by takpar
    Hi, Nowadays I'm hearing a lot about the new ~200 line path to Linux kernel that is said makes sensible difference in performance. Now, do anyone has experience on applying this path on his Ubuntu kernel? I also saw an alternative way that claimed has a better result: wget http://launchpadlibrarian.net/59511828/cgroup_patch chmod +x cgroup_patch sudo ./cgroup_patch What do you think this is? Is this validated? I ask this question because I need more performance but I can't risk on stability.

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  • revived closed tab in chrome doesn't work properly, but works correctly in IE and Firefox

    - by Kravlin
    I'm working on a website where information is loaded from a calendar. If a user clicks on a link on the calendar, it displays information about that link. If I close that page, and then re-open it, it works properly on both IE and Firefox, but if I open it in chrome, and click on another item on the calendar it instead errors out. Is there a large difference in how chrome brings back tabs from how IE or Firefox do that would cause this?

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  • Top Marketer FAQ - What Are Dofollow and Nofollow Links?

    If you have been doing any research on off page SEO or backlinks you have likely heard the terms nofollow and dofollow and that you only want to get dofollow for link popularity. This can be confusing unless you understand what all the fuss is about and how to tell the difference between the two.

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  • Fast and Free; SQL Scripts Manager's Script Generator

    When William produced his second article on the free tool 'SQL Scripts Manager', revealing that it worked just as well with PowerShell and Python scripts as it does with TSQL, he thought that would be the end of the series. Oh no; in response to feedback, comes a small add-in called 'Script Generator' that makes a big difference to the speed of developing and producing new scripts. The Future of SQL Server MonitoringMonitor wherever, whenever with Red Gate's SQL Monitor. See it live in action now.

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  • SEO Tips - Do You Make These 3 Critical SEO Mistakes?

    Traffic is the lifeblood of any website, and SEO tips are available all over the internet. Unfortunately, much of what you hear will lead you to do things that - by themselves - won't make a lot of difference in the amount of targeted traffic your website receives. If you focus your efforts on doing the wrong things, you will waste a lot of time and experience frustration.

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  • Ubuntu does not boot after bad shutdown

    - by Molly Gibson
    I recently swapped from Windows7 to Ubuntu 11.10 due to problems with my Windows. Ubuntu worked great for a few days with no problem, This morning I ran out of battery and the laptop shut down. I rebooted it and now it just displays an error message ( black screen with coding commands) it doesn't even go onto the purple screen anymore. Any help on this would be much appreciated.. Ps: would installing Ubuntu again make any difference?

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  • How do I get rid of this monitor error?

    - by Dave M G
    I have an Nvidia card and two monitors. Every time I log in to Unity on Ubuntu 11.10, I get this error: "Could not apply the stored configuration for monitors" I have tried opening nvidia-settings, but none of my experimental alterations to any of the settings has made a difference. I can still use my computer, but it seems to break the themes, icons, and styles so my computer looks like Unix circa 1992, which is a pretty annoying. How do I kill this error?

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  • How do you explain refactoring to a non-technical person?

    - by Benjol
    (This question was inspired by the most-voted answer here) How do you go about explaining refactoring (and technical debt) to a non-technical person (typically a PHB or customer)? ("What, it's going to cost me a month of your work with no visible difference?!") UPDATE Thanks for all the answers so far, I think this list will provide several useful analogies to which we can point the appropriate people (though editing out references to PHBs may be wise!)

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  • Upgrade from 13.04 to 13.10 broke remote SSH access?

    - by stackoverflowuser95
    I can no longer connect via SSH to my Ubuntu instance after upgrading from 13.04 to 13.10 with: # do-release-upgrade Connecting with $ ssh -vvv [ip here] gives me: OpenSSH_6.3, OpenSSL 1.0.1e 11 Feb 2013 debug2: ssh_connect: needpriv 0 debug1: Connecting to [ip here] [[ip here]] port 22. debug1: connect to address [ip here] port 22: Connection timed out ssh: connect to host [ip here] port 22: Connection timed out So I tried uncommenting #PasswordAuthentication yes in /etc/ssh/sshd_config, and restarting with /etc/init.d/ssh restart; but there was no difference.

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  • 6 important uses of Delegates and Events

    In this article we will first try to understand what problem delegate solves, we will then create a simple delegate and try to solve the problem. Next we will try to understand the concept of multicast delegates and how events help to encapsulate delegates. Finally we understand the difference between events and delegates and also understand how to do invoke delegates asynchronously.

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  • Free eBook - Control Your Transaction Log so it Doesn't Control You

    Download your free copy of SQL Server Transaction Log Management and see why understanding how log files work can make all the difference in a crisis. Want to work faster with SQL Server?If you want to work faster try out the SQL Toolbelt. "The SQL Toolbelt provides tools that database developers as well as DBAs should not live without." William Van Orden. Download the SQL Toolbelt here.

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