Все вопросы: [benchmarking]

138 вопросов

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79
голосов
10ответов
64270 просмотров

Is there any simple way to benchmark python script?

Usually I use shell command time. My purpose is to test if data is small, medium, large or very large set, how much time and memory usage will be. Any tools for linux or just python to do this?

3
голосов
3ответов
1700 просмотров

Trouble deciphering Autobench output

I'm trying to benchmark a simple webserver I wrote, but I'm having trouble deciphering what Autobench has outputted. I've been googling all over for help on this (even going through the autobench and httperf source code) but haven't been able to grok what's going on. I ran the following benchma...

1
голосов
2ответов
584 просмотров

Benchmark website

How can i benchmark a website ? i want to define how many user can i handle simultaneously. Can you suggest me any read / tool that helps ? I don't think that matters but the site is a Flex application that consumes some services provided by tomcat's servlet

1
голосов
3ответов
603 просмотров

Server Benchmarking: What tools to use with my real-world test data

I want to benchmark a new server using historical HTTP-request data. I have a textfile that contains one day's worth of real historical requests to a production server. What is the best tool for sending that list of requests on the server I'm testing? The tool I use should be able to configure th...

2
голосов
5ответов
8362 просмотров

web programming language benchmarks?

I'm thinking that as more and more programming moves to the web with similar and a variety of tools and techniques, has anyone come up with a good set of benchmarks for a programming language? I'm thinking server-side languages, like Java, PHP, ASP.net, and C# are the big ones. Though it could ...

0
голосов
5ответов
2012 просмотров

How to calculate computer speed

I have a high-speed ADC data capture/analysis program which performs poorly on older computers. This was discovered in beta testing in my customer's lab when one test engineer reported the application was hanging. It turns out that she had an old computer in her lab (single core P4), and the 'han...

27
голосов
3ответов
4899 просмотров

Writing a time function in Haskell

I’m new to Haskell and I’d like to be able to time the runtime of a given function call or snippet of code. In Clojure I can use ‘time’: user=> (time (apply * (range 2 10000))) "Elapsed time: 289.795 msecs" 2846259680917054518906413212119868890148051... In Scala, I can define the function ...

35
голосов
4ответов
3179 просмотров

C#: Is this benchmarking class accurate?

I created a simple class to benchmark some methods of mine. But is it accurate? I am kind of new to benchmarking, timing, et cetera, so thought I could ask for some feedback here. Also, if it is good, maybe somebody else can make use of it as well :) public static class Benchmark { public st...

3
голосов
1ответов
158 просмотров

benchmarking ruby

I have just installed Ruby Enterprise Edition and would like to run some benchmarking tests against my system Ruby. Are there canonical benchmark tests I should implement?

36
голосов
3ответов
24721 просмотров

High-Performance Timer vs StopWatch

Does anyone know if the HiPerfTimer or the StopWatch class is better for benchmarking, and why?

1
голосов
1ответов
373 просмотров

Benchmarks of code generated by different g++ versions

I work on a runtime system for an application domain that is very performance sensitive. We go to a lot of effort to maintain backward compatibility with older compiler versions, including avoiding more recently-implemented language constructs, and synthesizing them for the older versions. Howev...

2
голосов
5ответов
729 просмотров

Comparing CPU speed likely improvements for business hardware upgrade justification

I have c# Console app, Monte Carlo simulation entirely CPU bound, execution time is inversely proportional to the number of dedicated threads/cores available (I keep a 1:1 ratio between cores/threads). It currently runs daily on: AMD Opteron 275 @ 2.21 GHz (4 core) The app is multithread usin...

38
голосов
6ответов
27893 просмотров

HTTPS vs HTTP speed comparison

Update 2013-04-25: This is a popular question that is getting more attention than it probably should. In order to stop the spread of misinformation please read the following paragraphs and the accompanying article first: Speed should not be a factor in deciding whether to use HTTPS or HTTP. If ...

6
голосов
3ответов
6610 просмотров

Tools to benchmark web-services

What tools are best for measuring web-services performance? It would be nice to get report for total transferred data, total POSTs, requests per second, time per request, transfer rate and response time per request.

2
голосов
3ответов
609 просмотров

Why are two Java threads (in some cases) more than twice as fast as one?

File: Example1.java public class Example1 implements Runnable { public void run() { for(int i = 0; i < 100000000; i++) { int x = 5; x = x * 4; x = x % 3; x = x + 9000; x = x * 923; } } public stat...

16
голосов
2ответов
12725 просмотров

Can someone please explain what these ApacheBench results mean?

i'm trying to figure out how to use ApacheBench and benchmark my website. I installed the default site project (it's ASP.NET MVC but please don't put stop reading if u're not a .NET person). I didn't change anything. Add new project. Set confuration to RELEASE. Run without Debug. (so it's in LIV...

4
голосов
5ответов
157 просмотров

Software for benchmarking a slow site?

I have a homegrown CMS running on multiple ISPs. End users have complained that viewing and administering their sites is slow. We suspect the problem is with different ISPs/server that we use. I am trying to determine a benchmark so I can look for a better/more consistent hosting option. To do so...

5
голосов
4ответов
3323 просмотров

What is the fastest Ruby logger implementation?

I want to find the fastest logger Ruby has to offer. My intuition tells me that syslog would win in this race. But my intuition seems to be wrong. Syslog turns out to be the slowest out of the three loggers I've tested. I'm using my MacBook Pro, OSX 10.6 (Snow Leopard), Intel Core2 Duo, 4GB o...

9
голосов
5ответов
364 просмотров

Benchmarking: When can I stop making measurements?

I have a series of functions that are all designed to do the same thing. The same inputs produce the same outputs, but the time that it takes to do them varies by function. I want to determine which one is 'fastest', and I want to have some confidence that my measurement is 'statistically signi...

1
голосов
3ответов
689 просмотров

How can i benchmark my SQL and PHP code?

I have problems because i don't really know how I can test my code and sql ( mysql ) to see how long SQL queries and PHP functions /code take to run. Does anyone here know where I can find these tools?

6
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2ответов
9491 просмотров

Performance Benchmark CouchDB x Relational Databases

Does anyone knows a link for a good performance benchmark of CouchDB x "Any relational Database"

10
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6ответов
7166 просмотров

How long does my code take to run?

How can I find out how much time my C# code takes to run?

3
голосов
1ответов
1005 просмотров

Help me understand apache ab

I did a few Google search, but found no explanation of how it actually performs stress tests. As far as I understand, concurrency means simultaneous number of connections. ab probably starts the given "c" number of connections at the very same time, and hold back the following waves until all r...

4
голосов
1ответов
1421 просмотров

MySQL PBXT vs InnoDB

I'm wondering what are are the pros/cons of the new PBXT Engine vs the good old one InnoDB? Where can I find a list of features and maybe some benchmarks comparing these two DB engines?

1
голосов
1ответов
477 просмотров

Is there a good (free) benchmarking tool for Windows platform?

Is there a good performance tool for benchmarking like Siege for Windows?

5
голосов
3ответов
2254 просмотров

What is the recommended Python module for fast Fourier transforms (FFT)?

Taking speed as an issue it may be better to choose another language, but what is your library/module/implementation of choice for doing a 1D fast Fourier transform (FFT) in Python?

16
голосов
3ответов
8575 просмотров

Are jQuery's :first and :eq(0) selectors functionally equivalent?

I'm not sure whether to use :first or :eq(0) in a selector. I'm pretty sure that they'll always return the same object, but is one speedier than the other? I'm sure someone here must have benchmarked these selectors before and I'm not really sure the best way to test if one is faster. Update: ...

55
голосов
5ответов
25626 просмотров

How do I get monotonic time durations in python?

I want to log how long something takes in real walltime. Currently I'm doing this: startTime = time.time() someSQLOrSomething() print "That took %.3f seconds" % (time.time() - startTime) But that will fail (produce incorrect results) if the time is adjusted while the SQL query (or whatever it ...

31
голосов
8ответов
74974 просмотров

Testing IO performance in Linux

How do I test IO performance in Linux?

6
голосов
6ответов
5330 просмотров

Fortran's performance

Fortran's performances on Computer Language Benchmark Game are surprisingly bad. Today's result puts Fortran 14th and 11th on the two quad-core tests, 7th and 10th on the single cores. Now, I know benchmarks are never perfect, but still, Fortran was (is?) often considered THE language for high p...