Slashdot is powered by your submissions, so send in your scoop

 



Forgot your password?
typodupeerror
×

Comment Re:The problem is relational databases. (Score 1) 143

If the data is in cache, it is faster to open a file, read the data in as a text file, do a linear search, process the data, close the file than it is to just do a connection to an sql server. Most online stores are selling so few products that their entire product database should fit in L1 cache. If you want fast, make sure everything that has to be run can live in L1/L2 cache except what has to be be written out. Modern file systems are very good at writing out small files quickly without making the person in front of a screen wait.

Comment Re:But why? (Score 5, Informative) 143

Page load times are down because pages are loading so many more tracking options and some of them are very abusive on the javascript engines. If you turn on the status line (even if you can as it is gone in some modern browsers), you will often see it saying "loading 159 out of 162" and those last ones never load. There is also something that is related to a compounding latency problem that many developers don't think about it because they don't see it when they are developing the platforms and modern tool kits help to hide it from developers too.

I guess people don't like IBM's old work on the subject that showed dropping a 3 second response to just 2 seconds resulted in substantial improved efficiency. Maybe marketing groups need to understand that a customer stuck on a slow site is a bad consumer.

Comment Re:Google Wave (Score 1) 299

Google Wave was some very interesting technology but I think it was pointed in the wrong direction. It wasn't ever considered as a way for the Internet of Things to talk to each other in a reasonable way and everything Google did with it was around pushing it in front of people, not devices. There might have been a time where the terms of service didn't allow devices to communicate using it for message passing.

Language development these days seems to have stalled around a few specific areas which are separated by the family trees of the languages. There were plenty of languages from the past that excelled in one area or another that is often difficult or every inefficient with more modern architectures. Many of the 4th generation languages had some very cleaver ideas. Even new languages like go don't help with a major problem because there is no base type for money so programmers are left to their own devices and end up with floating point issues or just using cents or even worse problems because of the underlying hacks.

Comment Re:DOCSYS? (Score 1) 291

The limiting factor of shared fiber broadband is the packet turnaround time just like coax and radio combined with scheduling the upstream data. The *PON networks were designed for sending lots of cable TV bits one direction and being able to cope with a small percentage going the other way. There are all sorts of techniques to fix that problem and all of them fail in different ways. So far the fastest home internet isn't PON based but a dedicated point to point links to a somewhat local fiber switch that has massive amounts of upload. It would be very interesting for Google to release some documents about their different types of technology they are using in Kansas City experiment. I've heard that they are using at least 4 different types of connections.

Comment They forgot a few other issues (Score 1) 323

German and English won in the engineering world because of compound words. You can invent a new device and create a name that works in letter describing it.

English wins over German because of the relative lack of gendered words. Genders can get very messed up when using compound words. As an example, if a boat is female and a trailer is male, what gender should a boat-trailer be?

Comment Re:Can't forgive. (Score 1) 267

I suspect this debacle has been a massive setback for Linux on the desktop. I'm as hardcore an open source you'll find, I haven't run a closed-source OS in over 20 years, but I was almost ready to throw in the towel and install Windows during the height of this!

I did exactly this... I run linux on just about every non-GUI bit of equipment I have - virtualisation, the lot - but everything that I actually have to look at a screen for, I use Windows 7 again. Gnome 3 killed it for me... I have 3 x 24" 1920x1080 screens that Gnome 3 could never handle right. I was running Fedora 20 until Gnome 3.

TBH, XFCE would be perfect IF it was using wayland. The graphics tearing issues I had with my tri-head video card + XFCE was horrible. The sad fact was the only real fix was that XFCE needs newer graphics handling. One day it'll get there - and hopefully one day it becomes nice to use again - but until then, I went back to Windows 7 and the amount of work I actually get done is amazing...

The other benefit is that the dual GPUs (Intel + ATI) in my laptop actually work properly so I can play some TF2 on my laptop in the downtime - with VERY good performance. I couldn't get anywhere near that on Linux - even with the ATI binary drivers.

Comment Re:FP? (Score 1) 942

I haven't flow in the US in the last year. I've been on commercial aircraft in Australia where the pilot got the wrong frequency when the controller was using "dec-ee-mal". A friend had his class do an experiment where students wrote down numbers that were being read in different styles. There were substantially more errors with the ICAO way of reading numbers than the older FAA style with the Aussie students.

Comment Re:Fine. Legislate for externalities. (Score 1) 488

You may not have a choice. My last power bill had a connection charge that was higher than the energy consumption charge an I pay $.22 a kwh. That will be the trend in the future. In places where the grid is still locally owned, I see it being added to property taxes as the cost of batteries come down where people can go off grid.

We just put in 6 250W panels. They cost less then $190 each but installing the frame and the wiring cost more. The mPPT module happens to plug into our existing telco grade -48V DC power supply and it was only $800 but plugged into a nice $5k system. The batteries that will run one of our racks of gear for 8 hours cost $250 each for 8 of them. The silicon bits aren't a major part of the cost of going off grid now.

Slashdot Top Deals

Math is like love -- a simple idea but it can get complicated. -- R. Drabek

Working...