optimization

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Need to optimise counting positive and negative values

I need to optimise code that counts pos/neg values and remove non-qualified values by time. I have queue of values with time-stamp attached.[详细]

2023-04-12 03:55 分类：问答
Speed Enhancements for a Sorted Vector in MATLAB

What is the fastest way to lookup the index of a value in sorted vector in MATLAB? That is, is there a fast find(vector == myNumber, 1, \'first\') for whe开发者_如何学Gon vector is sorted?[详细]

2023-04-12 03:49 分类：问答
Why do SSE integer averaging instructions (PAVGB/PAVGW) add 1 to temporary sum before calculating final result?

I have been working on SSE optimization for a video processing algorithm recently. I need to write the exactly same algorithm in C code to cross-check correctness of the algorithm. I forgot about this[详细]

2023-04-12 02:52 分类：问答
Html to PDF conversion taking long time with the ExpertPDF/Aspose.Pdf components

I am trying to generate a PDF file based on a dynamically generated HTML report that our webapplication has generated.[详细]

2023-04-12 02:38 分类：问答
Designing an account statement

I have a mySQl innodb database which has a couple of tables which store different kind of transactions of a user. In order to show a custom \'Account Statement\', I have to fetch data from all of thes[详细]

2023-04-12 02:06 分类：问答
Team Building Optimization Using Microsoft Solver Foundation 3.0

I\'m working on a student project team building application. I\'m familiar with optimization but haven\'t used Microsoft Solver Foundation before. I have my constraints worked out but am having troubl[详细]

2023-04-11 21:16 分类：问答
Optimizing this C# algorithm (K Difference)

This is the problem I\'m solving (it\'s a sample problem, not a real problem): Given N numbers , [N<=10^5] we need to count the total pairs of[详细]

2023-04-11 20:04 分类：问答
Why does GCC not optimize this set of branching and conditionals as much as it could?

The following three pieces of code achieves exactly the same effect. Yet, when compiled with -O3 on GCC 4.5.2 the times for a lot of iterations vary quite markedly.[详细]

2023-04-11 19:12 分类：问答
How can I speed up my Ruby/Rake task, which counts occurrences of dates among 300K date strings?

I have an array of 300K strings which represent dates: date_array = [ \"2007-03-25 14:24:29\", \"2007-03-25 14:27:00\",[详细]

2023-04-11 17:41 分类：问答
Nested foreach loop slow

The following piece of code achives the desired results, but performance is extremely slow: SearchResultCollection absaUsers = ABSAds.FindAll();[详细]

2023-04-11 17:08 分类：问答