performance

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How do I profile XAML performance?

I\'m getting deeper into xaml (WPF in my case), and really enjoying it. However, I\'d quite like to understand now (before it\'s too late) how to profile th开发者_如何学Ce performance of xaml. Are th[详细]

2023-04-12 02:49 分类：问答
Jaggy paths when blitting an offscreen CGLayer to the current context

In my current project I need to draw a complex background as a background for a few UITableView cells. Since the code for drawing this background is pretty long and CPU heavy when executed in the cell[详细]

2023-04-12 01:29 分类：问答
What is the Best Complexity of a Greedy Algorithm?

It seems like the best complexity would be linear O(n). Doesn\'t matter the case really, I\'m speaking of greedy algorithms in general.[详细]

2023-04-12 01:10 分类：问答
Ajax and Performance/Speed

I\'m currently creating a small todo site, and I have multiple questions related to ajax and performance... So here are my questions:[详细]

2023-04-11 23:54 分类：问答
How can I optimize the performance of a QGraphicsView-based app?

I have an app which is based on the Qt Graphics View framework. It\'s a jigsaw puzzle game which basically cuts a pixmap into smaller pixmaps (puzzle pieces) and displays them as QGraphicsItems in a Q[详细]

2023-04-11 23:46 分类：问答
How slow (how many cycles) is calculating a square root?

How slow (how many cycles) is calculating a square root?This came up in a molecular dynamics course where efficiency is important and taking unneces开发者_C百科sary square roots had a noticeable impac[详细]

2023-04-11 23:32 分类：问答
sql INNER JOIN table variable ON VS. INNER JOIN (select) ON

I\'m wondering if using a table variable开发者_如何学JAVA is more or less performant than using an inner join (select)[详细]

2023-04-11 23:30 分类：问答
What is causing spikes for JDBC calls to Oracle from within Websphere?

I was wondering whether someone can shed some light on the following issue: We\'ve been seeing spikes for JDBC calls from within a Spring 2.5.6 based web service run on Websphere 6.1 on AIX for calls[详细]

2023-04-11 23:15 分类：问答
Speed up PathGeometry.Combine (c#.net)?

I\'ve got two geometrical data sets to match, both containing tens of thousands PathGeometries. To be exact I need to find areas which overlap from one set to the other, so I got a loop like[详细]

2023-04-11 23:12 分类：问答
mysql slow performance on a small table with join query

I have a couple of tables that i join together when i execute the following query: SELECT article.year, authors.last_name, count(DISTINCT article.id) as count FROM[详细]

2023-04-11 22:21 分类：问答