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How to obtain the number of CPUs/cores in Linux from the command line?
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@duskwuff: which is precisely what you want in most cases.
– Frank Kusters
May 17 '13 at 10:52
9
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How to check which locks are held on a table
...S [index/page container_id]
FROM sys.dm_tran_locks AS TL
INNER JOIN sys.dm_os_waiting_tasks AS WT
ON TL.lock_owner_address = WT.resource_address
LEFT OUTER JOIN sys.objects AS O
ON O.object_id = TL.resource_associated_entity_id
LEFT OUTER JOIN sys.partitions AS P
ON P.hobt_id = TL.resource_ass...
How efficient is locking an unlocked mutex? What is the cost of a mutex?
...ect happens often, then multiple locks would increase parallelism. At the cost of maintainability, since more locking means more debugging of the locking.
How efficient is it to lock a mutex? I.e. how much assembler instructions are there likely and how much time do they take (in the case that t...
Sublime Text 2 multiple line edit
...s relative to where they are, so they are still not uniformly at the same position in the line. how do i get all the cursors at the start of the line? (for context, i am just trying to add [space]*[space] at the beginning of each line).
– user1063287
Aug 14 '...
File changed listener in Java
...the application restarts.
You can use the libraries from such servers as most of the code of tomcat is reusable and opensource.
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How to print a linebreak in a python function?
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You can print a native linebreak using the standard os library
import os
with open('test.txt','w') as f:
f.write(os.linesep)
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How can I create a directly-executable cross-platform GUI app using Python?
...gram that will convert your python scripts into standalone executables.
Cross-platform GUI libraries with Python bindings (Windows, Linux, Mac)
Of course, there are many, but the most popular that I've seen in wild are:
Tkinter - based on Tk GUI toolkit (de-facto standard GUI library for python...
[源码实例] c/c++获取网卡mac地址 - C/C++ - 清泛网 - 专注C/C++及内核技术
..._num = lana_num; // 指定网卡号
// 首先对选定的网卡发送一个NCBRESET命令，以便进行初始化
uRetCode = Netbios( &ncb );
memset( &ncb, 0, sizeof(ncb) );
ncb.ncb_command = NCBASTAT;
ncb.ncb_lana_num = lana_num; // 指定网卡号
strcpy( (char *)ncb.ncb_call...
Is System.nanoTime() completely useless?
As documented in the blog post Beware of System.nanoTime() in Java , on x86 systems, Java's System.nanoTime() returns the time value using a CPU specific counter. Now consider the following case I use to measure time of a call:
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Flash CS4 refuses to let go
...- I thought it was time. The new Jenine was better in every way - she had lost some code bloat, she had decoupled herself from a few vestigial class relationships, and she had finally come home to the namespace that she had always secretly known in her heart was the one she truly belonged to. She wa...