Rumour has it that this;
SELECT * FROM lineage_string where lineage like '%179%' and lineage regexp '(^|/)179(/|$)'
Would be faster than this;
SELECT * FROM lineage_string where lineage regexp '(^|/)179(/|$)'
Can anyone confirm ? Or know a decent way to test the speed of such queries.
Thanks
I have tried using the My.Computer.Network.DownloadFile method but unfortunately it is slow.
Executing the simple command below takes ~5-10 secs, which I would say is a lot longer than expected for downloading a 9 kb file.
`My.Computer.Network.DownloadFile("http://www.google.dk", "j:\temp\test.html")`
I am connecting via a high-speed connection (10GB) from a Win7 machine. Do anyone know of any explanations for this behavior?
Hope that you can help me out with this.
Kristoffer
How can I pass data from client to server?
I have a very simple text editor created on a site and every few minutes or so I would like to send the information that has been typed in back to the server as a text file. I am trying to create an effect similar to the live type of googleWave.
Speed and efficiency isn't all that important at the moment. A quick and dirty way would be suffice.
On my machine, the execution speed between "d.clear()" and "d={}" is over 100ns so am curious why one would use one over the other.
import timeit
def timing():
d = dict()
if __name__=='__main__':
t = timeit.Timer('timing()', 'from __main__ import timing')
print t.repeat()
Hello,
I have a containing div that has multiple divs within which is updated every 25ms using innerHTML (for performance reasons). I have tried using event delegation to capture events but nothing I seem to do captures the click event. I think this may be due to the speed that the contents are getting updated. Any ideas would be very welcome.
Thanks
Mark
I've seen some mkspec for mac or linux using llvm.
Does anyone use an llvm compiled version of Qt ? Or llvm on their Qt Projects ? does it speed up compilation times ? Is your project faster ?
In a url like the one below, I'd like to get the value of ProdId. The URL format will always be consistent, as will the parameter name, but the length of the value may change. It will always be numeric.
http://www.site.com/page.php?ProdId=2683322&xpage=2
Using PHP what's the fastest way to get it (I'll be processing 10,000's so speed is an issue) ?
I've looked around a bit for a great JavaScript Sprite Sheet animator lib/engine but couldn't find any good ones so I thought I'd ask around =).
What I'm looking for in the engine is:
Animate an image in a non-canvas setting (ex: div via css or img
tags)
Control frame rate/animation speed
Flags to loop or to animate
once etc.
Are there any engines like this out there? If not I can always make my own but then again, I don't want to re-invent the wheel =].
is there a way i can cache all required application files on the local computer for speed without any disruption (at least those that can be run locally)?
i want it to be able to start even without connection right from the start, isit possible? is Google Gears what i shld use? i heard theres a HTML5 feature/module for it?
Hi!
I have tried to use xDebug on my local Ubuntu environment to speed up development and it's a great asset.
However, I would like to see the output of the Trace function directly in the browser, at the end of the script. How can this be done?
Hi,
I wanted to do matrix multiplication in Java, and the speed needs to be very good.
I was thinking of calling R through java to achieve this.
I had a couple of Qs though:
Is calling R using Java a good idea? If yes, are there any code samples that can be shared?
What are the other ways that can be considered to do matrix multiplication in Java?
Many thanks.
--Chapax
Hi All,
I want to set the starting slide manually for the cycle plugin without using pager. It is not working for me.
Code:
$('#divTrac').cycle({
fx: 'scrollHorz',
speed: 1500,
next: '#leftt',
prev: '#rightt',
startingSlide: 2,
timeout: 0, continuous: false,
pause: 1, sync: 1,
nowrap: 1,
slideExpr: '#myTrack'
});
We want to make an audio based web based app that will have many sound snippets. We want to cache these files so that performance is good and not dependent on network speed. Can HTML5 cache audio for offline mode?
I've been looking at L.in.oleum and am intrigued by it's mix of higher-level constructs (loops, dynamic variables) with low-level assembler power (registers).
Are there other languages like Lino out there, which blend the speed of assembler with productivity enhancing features?
EDIT: I realized this kind of sounds like an ad. I'm genuinely interested in other assembler-like languages, Lino is just the only one I happen to know of.
I have been using php for quite few years and now i want to learn ASP.net for web development cause I have found it pretty faster than PHP?
Despite Speed, I want to know which has more flexibility, user friendly, easy learning and powerful capability.
Hello all,
I have a UIPickerView implemented in one of my pages that depends on the didSelectRow delegate method.
An odd behavior I have noticed is when the user moves a wheel and leaves it between selections, then the wheel will move very slowly to the closest selection. The didSelectRow event will not fire until this is complete, sometimes 3 seconds later.
Is there a way to speed this up, or detect when the wheel is being moved, so I can freeze my interface during this time?
If I use Dos command "copy" to concatenate two files:
copy a1.txt + a2.txt a.txt
I will have something like the following in stdout:
C:\a1.txt
C:\a2.txt
1 file(s) copied.
I do not want to have anything written in stdout, I mean, I just want to have 'a.txt' without those 3 lines written in stdout. Is there any way to do so? the reason is, I need speed and I know that any IO takes time.
Thanks,
Shadi.
I would like to allow two threads to write in a table at the same time (I know the problem of updating the same row, but this would be a story apart). I need that in behalf of speed up the operations in my aplication (one thread could write in row X while another could do the same in row X+n instead of waiting the first to finalize).
So, can I block rows instead of tables with Linq to SQL?
Thanks.
Hi, I am planning to participate in development of a code written in C language for Monte Carlo analysis of complex problems. This codes allocates huge data arrays in memory to speed up its performance, therefore the author of the code has chosen C instead of C++ claiming that one can make faster and more reliable (concerning memory leaks) code with C.
Do you agree with that? What would be your choice, if you need to store 4-16 Gb of data arrays in memory during calculation?
What is the best way to create a continuously looping background using iPhone SDK so that it seems the foreground object is in perpetual motion ?
I have a background image which I want to move continuously at a given speed from right to left and seamlessly start displaying the beginning of the image when its end is reached.
What is the best, most efficient way to do it to avoid any jumps and get optimal performance ?
Hi everyone,
I have recently heard a lot of people argue about using PHP testing features like PHPunit and SimpleTest together with their IDE of choice (Eclipse for me). After googling the subject, I have still a hard time understanding the pros and cons of using these testing frameworks to speed up development.
If anyone could explain this for me in a more basic level, I would really appreciate it. I am using PHP5 for the notice.
Thanks a lot!
instead of SELECT * FROM mytable, i would like to select all fields EXCEPT one (namely, the 'serialized' field, which stores a serialized object). this is because i think that losing that field will speed up my query by a lot. however, i have so many fields and am quite the lazy guy. is there a way to say...
`SELECT ALL_ROWS_EXCEPT(serialized) FROM mytable`
?
thanks!