|
About index range scans, disk re-reads and how your new car can go 600 miles per hour!
-
tanelpoder.com
-
11 years ago
-
eng
Despite the title, this is actually a technical post about Oracle, disk I/O and Exadata & Oracle In-Memory Database Option performance. Read on :) If a car dealer tells you that this fancy new car on display goes 10 times (or 100 or 1000) faster than any of your previous ones, then either the salesman is lying or this new car is doing something radically different from all the old ones. You don’t just get orders of magnitude perform..
|
|
About index range scans, disk re-reads and how your new car can go 600 miles per hour!
-
tanelpoder.com
-
11 years ago
-
eng
Despite the title, this is actually a technical post about Oracle, disk I/O and Exadata & Oracle In-Memory Database Option performance. Read on :) If a car dealer tells you that this fancy new car on display goes 10 times (or 100 or 1000) faster than any of your previous ones, then either the salesman is lying or this new car is doing something radically different from all the old ones. You don’t just get orders of magnitude perform..
|
|
This is just incredible. We as a species have a tendency to hold ourselves above all things both animate and inanimate in this world. Humans place themselves above nature, animals, and even one another. The trope of an invincible teenager is not exclusive to that age group, for at some level we all consider ourselves untouchable. And then, in the midst of this mis-placed mixture of entitlement and pride, videos like this appear to put us ..
|
|
I don’t link to these kinds of things often, but this time I just couldn’t resist: for all you Bionic fans out there, a true fan surprised Matt Alexander at XOXO this year. Hilarious. Permalink.
|
|
Getting to Know Fiddler: Part VI: Use FiddlerScript to identify common problems
-
joshuarogers.net
-
11 years ago
-
eng
Our tour of Fiddler has covered a lot of ground so far, and while there's still more to cover, I'm going to have to let you in on a secret before we can continue. The UI is definitely powerful, but here's the thing: it's not the killer feature. The real killer feature is FiddlerScript. Getting Started Fiddler already detects invalid requests and broken responses. What more could we possibly add, you might ask.
|
|
SSH::Batch is a simple command line tool, written in Perl, that allows you to run shell commands over SSH across multiple servers. These days it seems most people turn to Puppet / Chef / Ansible for that type of thing, but sometimes your needs aren't that complicated. For that, SSH::Batch fills the gap nicely and it's really simple to get started.
|
|
OrderedDict is a super handy data structure. An OrderedDict is a dict that remembers the order that keys were first inserted. If a new entry overwrites an existing entry, the original insertion position is left unchanged. Deleting an entry and reinserting it will move it to the end. Problem is, this stuff is only available in the standard library since Python 2.7 while my project also needs to support Python 2.6. Fortunately there..
|
Update July 8, 2019 : Added more graceful pipe | and backslash \ handling. While doing code reviews on GitHub I find myself profiling a lot of SQL queries, getting EXPLAIN output into a markdown format for GitHub became very important, and was a huge pain to do by hand. While there were tools out there, nothing I could easily copy and paste tab seperated query results into, so I created this. The markdown this outputs should work with m..
|
|
Update July 8, 2019 : Added more graceful pipe | and backslash \ handling. While doing code reviews on GitHub I find myself profiling a lot of SQL queries, getting EXPLAIN output into a markdown format for GitHub became very important, and was a huge pain to do by hand. While there were tools out there, nothing I could easily copy and paste tab seperated query results into, so I created this. The markdown this outputs should work with m..
|
|
Building the new SoundCloud iOS application — Part II: Waveform rendering
-
developers.soundcloud.com
-
11 years ago
-
eng
When we rebuilt our iOS app, the player was the core focus. The interactive waveform was at the center of the design. It was important both…
|
|
Building the new SoundCloud iOS application — Part II: Waveform rendering
-
developers.soundcloud.com
-
11 years ago
-
eng
When we rebuilt our iOS app, the player was the core focus. The interactive waveform was at the center of the design. It was important both…
|
|
Install Headphones and a Musicbrainz-server in your Freenas
-
www.zufallsheld.de
-
11 years ago
-
eng
Today I want to describe how to set up the Headphones plugin in my Freenas-box. I’m still running Freenas 9.2.1 on a HP ProLiant G7 MicroServer N54L (affiliate link). I already set up Freenas with Transmission, Couchpotato, Sickbeard and a DLNA -Server. It downloads and stream movies and streams it to my TV . I’m using this setup now for quite a while. I also had Headphones already running, but it wasn’t installed as a plugin. It....
|
|
This week we see the return of my favorite podcast, Roderick on the Line, to this list with an even better episode than usual. Also making an appearance we have The Campfire Project, Exponent, and Grit; a fantastic roster, if I do say so myself. Permalink.
|
|
Here's the video from the August UpstatePHP meeting in Greenville discussing SQL vs NoSQL and where they are useful for your development process. I represented SQL solutions (*cough* PostgreSQL *cough*) while Benjamin Young represented NoSQL. Ben has actively contributed to CouchDB, worked for Cloudant, Couchbase, organizes the REST Fest Unconference (happening again September 25-27th) and is the owner of Big Blue Hat. I am a gainfully empl..
|
|
I took a one-month break from Gastropoda to participate in the JS13kGames challenge with a tiny game called Breaking Brad But now it’s back to simulations! It’s taking me a while to remember where exactly I left off with Gastropoda last month, but now I think it’s time to figure out how to calculate a snail’s position within a jar. This is important because each snail will detect other objects (items, snails, etc) differently based on..
|
|
Azair: Budget air tickets from low-cost airlines . Google Flights . Matrix - ITA Software by Google . Travelzoo: Travel & entertainment deals: hotels, holidays, cruises, restaurants, shows .
|
|
This is just a small collection of Bookmarklets I personally find useful. To use them simply click and drag them into your Bookmarks bar. Disable HTML 5 Validation Clicking this will disable html5 validation for all form elements on the page. Useful for testing server side validation while leaving HTML 5 validation in place. Element Count Clicking this will provide a count of the number of elements on the page in an alert box..
|
|
This is just a small collection of Bookmarklets I personally find useful. To use them simply click and drag them into your Bookmarks bar. Disable HTML 5 Validation Clicking this will disable html5 validation for all form elements on the page. Useful for testing server side validation while leaving HTML 5 validation in place. Element Count Clicking this will provide a count of the number of elements on the page in an alert box..
|
|
Resetting preferences gconftool --recursive-unset /apps/gnome-terminal Want 256 colors? Edit .bash_profile export TERM="screen-256color" Ensure .bash_profile is loaded From gnome-terminal window: gnome-terminal Edit Profiles… Edit Title and Command X Run command as login shell Solarized Bonus: See post to get solarized on gnome-terminal.
|
|
I came across this story thanks to Polygon’s refutation of the mod’s existence, but fortunately thought to read the original article over at Tiny Cartridge first — as I would recommend you do as well. “Creepy” barely scratches the surface of this haunting tale. Especially if you, like me, grew up loving Pokemon, I encourage you to take a few minutes and read this story; it’s remarkably well-done. Permalink.
|
|
If you've spent any amount of time on this site you may have noticed that I'm fond of PostgreSQL...and Ruby on Rails...and that I dislike the general trend among Rails developers to ignore all of the amazing features in PostgreSQL that make your application better in favor of risking data integrity just so that all logic can remain in Rails. So here's my top collection of Rails gems to get at all that untapped power in PostgreSQL that you d..
|
|
Getting to Know Fiddler: Part V: Make Fiddler even more powerful by adding extensions
-
joshuarogers.net
-
11 years ago
-
eng
The more time I spend examining Fiddler, the more and more impressed I am. Not only is it feature rich out of the box, but it includes a number of mechanism to easily extend it. This week we're going to focus on the easiest way to add new functionality: installing new plugins. All of the following plugins are available at Telerik.com. I highly recommend installing them. JavaScript Formatter The first plugin, and my personal favorite, was in..
|
|
As usual, a great post by Joe Steel over at Unauthoritative Pronouncements where he tackles the now-inflammatory issue of Markdown and its numerous variants, and goes on to explain why he cannot get behind Jeff Atwood’s “Standard Markdown” — later renamed to “Common Markdown”, and then finally “CommonMark” — play. I completely agree with every point Joe made. However, I will say that although I do agree with Joe, I cannot get behind the und....
|
|
Possible the only impartial take on the recent Markdown flareup you will find anywhere, Sid O’Neill took this opportunity to make a great work of prose rather than a declaration of support in favor of one side or the other. Take this opportunity to enjoy an article for the excellent craft it contains, rather than the point it attempts to make. Permalink.
|
|
The Stanford Javascript Crypto Library, or simply SJCL , is probably the best option available right now for using cryptography on the client-side: the project started in 2009 as a paper describing how to implement a secure and fast crypto library for web browsers, including, for instance, a CSPRNG algorithm and symmetric encryption. Today, it also has public-key crypto, hashing, and ECC primitives. It’s very small (just 37kb uncompresse....
|
|
Every day like clockwork, I copy a small text file out of a staging directory. Shortly thereafter, a Python script pulls the contents of that file out, parses it, and then places each line into a webpage that then gets pushed up to a server managed by a good friend of mine. Within a few seconds of that page going live, the handy Bitly bookmarklet gives me a shortened URL that I then send out to the world thanks to the magic of Tweetbot. ..
|
BreastQuest (otherwise known as BQuest or just BQ) is a /co/-created project about a lone well-endow...
|
|
Ten teams of two to four Cerner interns competed in a week-long HackFest this summer, working to solve any problem they put their minds to. This competition cumulated in a presentation and judging of projects, with prizes of Raspberry Pi Kits for each member of the second place team and Leap Motions for each member of the winning team. From mobile apps, to machine learning algorithms, to drones…this year’s Summer Intern HackFest has been on..
|
|
We come into life in a body. We have to take care of our body whether we like it or not. If we don’t take care, we are out of life. Simple. Our bodies are liabilities to us. They demand payment of food, excercise, shower, sex, warmth. If we don’t pay our due in time they enforce-collect it. They control of our mind and drive us crazy until they get their payment. Their demands aren’t the same to every person. Athletes’ body demands much m....
|
|
Pros and Cons There are lots of pros and cons when it comes to WordPress vs Jekyll. After looking through this list you might decide that Jekyll is not for you, and that is fine. Just remember that every tool is used for different tasks and neither WordPress nor Jekyll can be declared “better” as they are both good in different situations. Jekyll Pros Speed : No PHP is called or needs to be executed. A static HTML page is served and that....
|
Last week, we announced that Wingify would be sponsoring the JSFoo 2014 conference in Bangalore. We have always been looking out for…
|
|
Coming back from a week without podcasts , I have two great episodes to showcase this time around. Here’s to fantastic podcasts, then, and their continued, well-deserved success. Permalink.
|
|
I was a CS student long ago, but still remember the life. I’ve learned a lot since then and have a successful career. Perhaps I could have evolved much faster with a better initial understanding of this profession. Knowing the lessons I learned will help you avoid some of my mistakes.
|
|
Your quest is at an end for you have reached the home of Peramides 1 . This is a personal blog about things I’ve learnt, discovered, thought, or that I just need to write down somewhere because I always forget them. It’s a spiritual successor of my old WordPress blog. I needed something fresh so I built this using Jekyll/Octopress (I almost chose Hakyll but its documentation was scarce and outdated, and I’m not really proficient in Ha....
|
|
The idea that one could survive and prosper based on their merits alone is a comforting idea. If this story teaches us anything though, it teaches us that increasingly, it is nothing more than that — little more than a comforting notion in a world where mom and dad can open their wallets to make any door spring open before their baby. I signed eight years of my life away in exchange for a four-year education, and while I don’t regret that ..
|
|
I'm taking September off to work for some clients, so Lemma is temporarily on the back-burner. HOWEVER. Wednesday night a certain something arrived in the mail. I immediately tried it out with Half-Life 2 and was shocked at the massive improvement over DK1. I was so impressed that I've spent pretty much every waking minute since then trying to get it working in Lemma. Current status? It's very, very close. The VR itself is 1..
|
|
How can I learn to code? It’s a question I get a fair amount. The obvious answers are to checkout codecademey and Treehouse.
|
|
I first came across Rohan Anderson and his writing through a video titled “ The Smokehouse ”, where he talked about and demonstrated his efforts to construct a smokehouse completely by hand. Since that cool winter night almost a year ago now, I have continued following Rohan’s activities through his excellent blog, Whole Larder Love , and have linked to a number of his articles in the weeks and months since then. If my implicit endorseme..
|
|
Sometimes those little side projects that take nights and weekends to build can bloom into something much bigger.
|
|
When I was 18 years old, I started taking driving lessons. I practiced on an old Opel Astra, that was running on propane instead of normal gas, to save money. On my first lesson, we spent a large portion of the time going over the different tools and instruments available in the car. We covered many things at once. How to turn the signals, which pedal is the throttle, the break, and the clutch, how to use them to switch gears, how to turn l....
|