capacity

Can SQL server 2008 handle 300 transactions a second?

百般思念 提交于 2019-12-08 02:20:14
问题 In my current project, the DB is SQL 2005 and the load is around 35 transactions/second. The client is expecting more business and are planning for 300 transactions/second. Currently even with good infrastructure, DB is having performance issues. A typical transaction will have at least one update/insert and a couple of selects. Have you guys worked on any systems that handled more than 300 txn/s running on SQL 2005 or 2008, if so what kind of infrastructure did you use how complex were the

How to get exact capacity from storage

☆樱花仙子☆ 提交于 2019-12-07 04:54:36
I want to read the exact capacity from the intern storage programmatically. I's a Samsung Galaxy S7 Edge 32GB device what I am using. In the preinstalled Samsung FileManager (In German: Eigene Dateien) it shows me the total capacity of 32GB. Even in the menu => settings => Storage it shows me 32GB. (Showed in screenshots) When I use my code below it shows me a total capacity of 24,4GB. (Showed in Log at the end of the post) Question: How to get the exact 32GB total capacity of my device? Screenshots Full Code: package spicysoftware.com.space; import android.os.Environment; import android.os

New field under Azure DevOps (VSTS/TFS) iteration capacity tab

吃可爱长大的小学妹 提交于 2019-12-06 06:13:54
I am looking for a method to customize the capacity tab to include new field for each team member where i can specify the buffer time for each one during the sprint. Is it possible to add such new field entry under capacity tab or not? This isn't possible right now. You can help upvote this to increase visibility of this need to the product team in developer community: https://developercommunity.visualstudio.com/idea/365553/vsts-custom-team-capacity-activity-as-well-as-cust.html 来源: https://stackoverflow.com/questions/53362944/new-field-under-azure-devops-vsts-tfs-iteration-capacity-tab

Why does std::vector reserve not “double” its capacity, while resize does?

我的未来我决定 提交于 2019-12-03 19:22:49
问题 I just found out that std::vector<T>::resize "doubles" its capacity even when resizing to one element above the current size: std::vector<int> v(50); v.resize(51); std::cout << v.capacity() << std::endl; This program outputs 100 with GCC and Clang, and 75 with Visual C++. However, when I switch from resize to reserve : std::vector<int> v(50); v.reserve(51); std::cout << v.capacity() << std::endl; The output is 51 with all three compilers. I wonder why implementations use a different expansion

Why is the maximum capacity of a Java HashMap 1<<30 and not 1<<31?

99封情书 提交于 2019-12-02 20:49:49
Why is the maximum capacity of a Java HashMap 1<<30 and not 1<<31, even though the max value of an int is 2 31 -1? The maximum capacity is initialized as static final int MAXIMUM_CAPACITY = 1 << 30; Java uses signed integers which means the first bit is used to store the sign of the number (positive/negative). A four byte integer has 32 bits in which the numerical portion may only span 31 bits due to the signing bit. This limits the range of the number to 2^31 - 1 (due to inclusion of 0) to - (2^31) . While it would be possible for a hash map to handle quantities of items between 2^30 and 2^31

How many characters can a Java StringBuilder hold?

♀尐吖头ヾ 提交于 2019-12-01 15:00:56
问题 Does StringBuilder have a limit of characters for maximum capacity in JAVA. StringBuilder url=new StringBuilder(); stmt = connnection.createStatement(); String sql="SOME QUERY"; rs = stmt.executeQuery(sql); while(rs.next()) { String emailId=rs.getString("USER_EMAIL_ID"); url.append(emailId); } does StringBuilder variable 'url' have a maximum capacity, or it can hold everything? 回答1: Yes, it has limitation in capacity of max integer which 2147483647(technically). StringBuilder internally holds

Request-URI Too Large [duplicate]

倾然丶 夕夏残阳落幕 提交于 2019-12-01 03:39:06
This question already has an answer here: How do I resolve a HTTP 414 “Request URI too long” error? 5 answers Got this error on a big $_GET query in size ~9 000 symbols (they are divided into ~10 variables). Request-URI Too Large The requested URL's length exceeds the capacity limit for this server. What is a workaround for this problem? There is no workaround if you want pass all these info with GET without change server configuration. Other solutions: Use POST with a form (or an hidden form and add onclick event at your link that submit it) Use Session. When the server generates the link,

Is it possible to give a python dict an initial capacity (and is it useful)

*爱你&永不变心* 提交于 2019-11-30 17:52:35
I am filling a python dict with around 10,000,000 items. My understanding of dict (or hashtables) is that when too much elements get in them, the need to resize, an operation that cost quite some time. Is there a way to say to a python dict that you will be storing at least n items in it, so that it can allocate memory from the start? Or will this optimization not do any good to my running speed? (And no, I have not checked that the slowness of my small script is because of this, I actually wouldn't now how to do that. This is however something I would do in Java, set the initial capacity of

Should a .NET generic dictionary be initialised with a capacity equal to the number of items it will contain?

南笙酒味 提交于 2019-11-29 06:02:20
If I have, say, 100 items that'll be stored in a dictionary, should I initialise it thus? var myDictionary = new Dictionary<Key, Value>(100); My understanding is that the .NET dictionary internally resizes itself when it reaches a given loading, and that the loading threshold is defined as a ratio of the capacity. That would suggest that if 100 items were added to the above dictionary, then it would resize itself when one of the items was added. Resizing a dictionary is something I'd like to avoid as it has a performance hit and is wasteful of memory. The probability of hashing collisions is

Default capacity of StringBuilder

↘锁芯ラ 提交于 2019-11-29 02:51:14
What is the default capacity of a StringBuilder ? And when should (or shouldn't) the default be used? endian The Venerable J. Skeet has provided a good analysis of precisely this problem: https://jonskeet.uk/csharp/stringbuilder.html The default capacity of StringBuilder is 16 characters (I used .NET Reflector to find out). baretta Default is 16, which seems to be the default capacity of any type of array or list in the .NET framework. The less number of reallocations you need on your StringBuilder, the better it is. Meanwhile, it is unnecessary to allocate much more than is needed, too. I