optimization
How do I convince the JVM to inline an interface method?
I have an class hierarchy rooted in an interface and implemented with an abstract base class. It something looks like this:[详细]
2023-04-07 16:02 分类:问答How does the IMDB search work so fast?
There is a search box in header navigation bar (http://www.imdb.com/) and when I type 2 (or 3) letters fast,[详细]
2023-04-07 15:53 分类:问答Why is the gr count 0 in my program output?
I\'m new to R and DM/ML, and I wrote a small program to try out the optim function. I used optim with SANN method. I defined my own gr function and made some config with the control parameter.[详细]
2023-04-07 14:46 分类:问答what's the overhead of passing python callback functions to Fortran subroutines?
I just wrapped a Fortran 90 subroutine to python using F2PY. The subtlety here is that the Fortran subroutine aslo takes a python call-back function as one of its arguments:[详细]
2023-04-07 13:15 分类:问答TEXT values in sqlite databases
Do sqlite databases use anything like a flyweight pattern for TEXT values. If I\'m repeatedly using only a few different,开发者_如何学编程 short TEXT values in a column, would it be better to replace[详细]
2023-04-07 11:40 分类:问答Improving algorithm and syntax for c# linq expression
I\'ve been doing a bit of linq in c# .net 3.5 and feel like I should be able to do the following a little neater.[详细]
2023-04-07 10:06 分类:问答Help me optimize this query
I have this query for an application that I am designing. There is a table of references, an authors table and a reference_authors table. There is a sub query to return all authors for a g开发者_JS百科[详细]
2023-04-07 10:01 分类:问答SQLite: Downsides of ANALYZE
Does the ANALYZE command have any downsides (except a开发者_运维问答 slighty larger db)? If not, why is not executed by default?There is another downside. The ANALYZE results may cause the query plann[详细]
2023-04-07 10:00 分类:问答Mysql query optimisation - 50k+ Rows
I\'m querying 50k+ rows with this query and it is taking 1.2759 seconds. What do you think is the best way to optimise it. The data updates every second or so but I could cache it for say 20 seconds.[详细]
2023-04-07 04:08 分类:问答Dont remove(just hide) the previous data when ajax updated a page ?
In case I have a need to revisit the previous data , while updating webpages through ajax is it advisable to keep caching th开发者_StackOverflow社区e visited data in hidden tabs or hidden divs(instead[详细]
2023-04-07 03:19 分类:问答