Questions related to improving application performance, this can be range from selection software architecture to selection of algorithms.
53
votes
20answers
15k views
Why do people still say Java is slow? [closed]
For a long time in SO and in other places Java has the reputation of being slow. From jokes to many comments in questions and answers, people still believe Java is slow based solely on experience with ...
12
votes
5answers
1k views
How should developer performance be measured? [duplicate]
In many companies there is a formal procedure of reviewing employees' work.
For example, a salesperson can stay she'll sell one million units at the beginning of the year. When she comes up for ...
24
votes
7answers
834 views
What causes bad performance in consumer apps?
My Comcast DVR takes at least three seconds to respond to every remote control keypress, making the simple task of watching television into a frustrating button-mashing experience. My iPhone takes at ...
3
votes
3answers
179 views
How to best approach planning and budgeting of software performance optimization efforts?
There is a software system that has been with the client for some time now. If is feature-rich, mature, complex enterprise application that client uses in production. Due to the rapid expansion of the ...
124
votes
46answers
37k views
Does giving a developer a slower development machine result in faster/more efficient code?
Suppose I give my developers a screaming fast machine. WPF-based VS2010 loads very quickly. The developer then creates a WPF or WPF/e application that runs fine on his box, but much slower in the ...
43
votes
9answers
5k views
Clean readable code vs fast hard to read code. When to cross the line?
When I write code I always try to make my code as clean and readable as possible.
Every now and then there comes a time when you need to cross the line and go from nice clean code to slightly uglier ...
18
votes
6answers
3k views
Can I do anything to improve performance in VS 2010?
I'm using VS 2010 since we're developing an app in .Net 4 and the performance is driving me crazy. It's mostly bad when I don't view the IDE for a while (such as when I get pulled away for a help desk ...
8
votes
6answers
815 views
What makes an application scalable?
I keep seeing in job postings that the applicant must have experience writing "scalable" applications. What makes an application scalable, and how do I know that my code can scale to millions of ...
5
votes
3answers
461 views
Can software performance monitoring/profiling be automated to a high degree, as in unit testing?
Unit testing consists of executable code which exercise a certain functionality and then assert some conditions. The results are either Pass or Fail.
The objective is always to have all tests ...
2
votes
5answers
500 views
Good techniques to speed up database execution
I have an ASP.Net application that is using a MySQL database. My queries are not executing as fast as I would like them too. Are there some standard ways to increase the speed of a MySQL database ...
74
votes
11answers
16k views
What backs up the claim that C++ can be faster than a JVM or CLR with JIT? [closed]
A reoccurring theme on SE I've noticed in many questions is the ongoing argument that C++ is faster and/or more efficient than higher level languages like Java. The counter-argument is that modern JVM ...
14
votes
8answers
3k views
KPI's for Programmers [duplicate]
Do you know any Key Performance Indicators for Developers? What should be measured and monitored?
13
votes
2answers
4k views
Writing low latency Java [closed]
Are there any Java-specific techniques (things which wouldnt apply to C++) for writing low latency code, in Java? I often see Java low latency roles and they ask for experience writing low latency ...
20
votes
6answers
3k views
C++ Renaissance - marketing slogan? [duplicate]
Possible Duplicate:
What does the latest “C++ Renaissance” mean?
Lately, I hear a lot about C++ Renaissance. What is that?
C++ is currently undergoing a renaissance. This ...
12
votes
4answers
524 views
Does hybrid hard drive improve programming experience?
I'm tired of how luggish my developments PC is. It's Core2 Duo, 2GB RAM, Seagate ST3500320AS HDD - not the top model, but quite a decent one.
Typically I open several copies of Visual Studio 2008, ...
2
votes
6answers
1k views
What is JQuery performance compared to YUI, Dojo and other frameworks?
I have been using JQuery for quite sometime now and I'm pretty much happy with the performance.
I'm just wondering if there is any performance comparison between jQuery, YUI, Dojo, Prototype, ...
18
votes
7answers
1k views
How do I avoid “Developer's Bad Optimization Intuition”?
I saw on a article that put forth this statement:
Developers love to optimize code and with good reason. It is so
satisfying and fun. But knowing when to optimize is far more
important. ...
13
votes
7answers
477 views
When should I care about performance?
For the longest time in places like Java's IRC channel, SO, and other places I've been told something along the lines of "Worry about how the code looks and its readability/understandability now, and ...
3
votes
2answers
275 views
How is it possible to build the whole codebase from source at Google scale?
The first answer to an old, recently active question linked to a video which talks about how Google repository is done.
One interesting thing which was mentioned is the fact that everything is build ...
2
votes
6answers
541 views
Programmer performance
I am a PHP programmer with 1 year of experience. As I am just starting my career, I am learning a lot of things now. I can say I am a little bit of a perfectionist.
When I am assigned a problem I ...
3
votes
6answers
2k views
PHP email blasts using a cron job
My PHP application needs to send product expiry notifications to customers everyday. I am thinking of:
A one-time cron job for a php script that identifies the customers from a table of 10000 rows ...
3
votes
2answers
167 views
How is performance testing integrated into your product lifecycle?
Do you do any performance testing in any repeatable and automated way? Do you trigger it as a part of CI builds? What tools do you use? How do you spot changes in trends?
I'm looking for how-tos and ...
3
votes
7answers
3k views
Object Oriented Programming Language performance ranking
After reading this post about ideal programming language learning sequence, I am wondering what would have been the answers if the question was performance -instead of learning- oriented ?
Since ...
13
votes
2answers
578 views
What makes a large and complex software product slow?
For a reason that is largely irrelevant, I installed Delphi 7 once again in such a long time. I have to say, I was completely blown away - in a way I haven't been for rather a while. This is not how I ...
10
votes
10answers
474 views
How to communicate with a co-worker that considers frameworks a performance hit
How can one sell an idea like "we should use jQuery because its highly optimized and cross browser compatible" or "entity framework is cool because its neat and takes care of our model automagically" ...
8
votes
5answers
450 views
How much redundancy/robustness should complex software implement?
The focus of this question: Some software performs "extra work" in order to increase the chance of a "eventually successful/satisfactory" outcome, despite one or more internal errors in the software, ...
5
votes
1answer
458 views
Coded ui to measure performance
I have been tasked with using coded UI to measure performance on a proprietary windows desktop application. The need is to measure how long it takes for the next page/screen to display after a user ...
2
votes
2answers
418 views
Why is NoSQL better for this scenario?
Hypothetical scenario: Let's say we are downloading JSON from Facebook with details of a user's friend's checkins, posts, etc... These come in as one document per friend per activity, so with 8 ...
2
votes
5answers
353 views
What are good practices to perform software based optimization?
On a project that I am working on we encountered some performance problems.
We decided to drop hibernate in favor of plain Jdbc to gain database performance.
By converting our code to Jdbc we ...
2
votes
3answers
516 views
Does mobile based (Android) development, benefit from Object Oriented Programming?
My development on Android is based on scientific programs and while I'm building these most of the code is in one or two long classes. When I come to deploy these programs I try to decouple everything ...
1
vote
4answers
774 views
How do I speed up XML parsing operation?
I currently have a php script set up to do some xml parsing. Sometimes the script is set as an on page include and other times it is accessed via an ajax call. The problem is the load time for this ...
1
vote
4answers
469 views
Database in the cloud?
Some of my recent clients are asking for remote connections to the office server, for standalone work, etc, in winForm applications.
Since the concept of the web is remote connection to a server both ...
