performance
In C++, what's the fastest way to replace all occurrences of a substring within a string with another string?
I\'m looking for the most efficient (in terms of \"fastest\") way to replace all occurrences of a substring within a string with another string. All I\'ve came up with so far is:[详细]
2023-04-12 17:32 分类:问答Java ByteBuffer performance issue
While processing multiple gigabyte files I noticed something odd: it seems that reading from a file using a filechannel into a re-used ByteBuffer object allocated with allocateDirect is much slower th[详细]
2023-04-12 16:49 分类:问答SQLite: Optimal PAGE_SIZE
I read that the default PAGE_SIZE value of 1024 in SQLite has been chosen merely for compatiblity between different开发者_运维技巧 platforms and operatings systems.[详细]
2023-04-12 16:46 分类:问答json parse performance between jackson and gson
After searched in google, found that jackson has better performance than gson, i plan to replace gson with jackson in my project, but i got a diffrent result when run test code.[详细]
2023-04-12 15:58 分类:问答OpenCL - Impact of barrier on performance
In OpenCL, all the threads need to compute few common values. Which of the following tw开发者_StackOverflow社区o cases is faster?[详细]
2023-04-12 15:32 分类:问答Is gzip an actual ZIP file?
Does a gzip contains an archive of the referenced assets, such as external JS, CSS, and images or does it only compress the one file?[详细]
2023-04-12 15:32 分类:问答whats is the importance of table alias in sql join query?
I wrote a sql join query in oracle with two table. While writing query I did not use any table alias to refer column in select clause.[详细]
2023-04-12 15:31 分类:问答Any MySQLTuner equivalent/alternative for Windows?
I know auto tuning has its limits, but it would be great to quickly determine reasonable starting points for my Windows MySQL InnoDB configuration (innodb开发者_运维技巧_additional_mem_pool_size, inno[详细]
2023-04-12 15:30 分类:问答ITextSharp taking too much time in getting Number of Pages
I have this piece of code: foreach(string pdfFile in Directory.EnumerateFiles(selectedFolderMulti_txt.Text,\"*.pdf\",SearchOption.AllDirectories))[详细]
2023-04-12 15:24 分类:问答Performance gains from fast multiplication with bit shifting
I have been reading a lot of articles lately about programming practice, design and so forth and was curious about the real performance gains from implementing multiplication as bit shifting.[详细]
2023-04-12 15:04 分类:问答