大约有 15,000 项符合查询结果（耗时：0.0255秒） [XML]
Limitations of SQL Server Express
...
There are a number of limitations, notably:
Constrained to a single CPU (in 2012, this limitation has been changed to "The lesser of one socket or four cores", so multi-threading is possible)
1GB RAM (Same in 2008/2012)
4GB database size (raised to 10GB in SQL 2008 R2 and SQL 2012) per databa...
How to do parallel programming in Python?
...r you. Since we did not pass processes, it will spawn one process for each CPU core on your machine. Each CPU core can execute one process simultaneously.
If you want to map a list to a single function you would do this:
args = [A, B]
results = pool.map(solve1, args)
Don't use threads because th...
#pragma pack effect
...alks about some fairly extreme alignment (aligning on 4KB boundaries). The CPU expects certain minimum alignments for various data types, but those require, in the worst case, 8-byte alignment (not counting vector types which may require 16 or 32 byte alignment). Not aligning on those boundaries gen...
Why is IntelliJ 13 IDEA so slow after upgrading from version 12?
...ely to need anytime soon (eg. support for Mecurical, internationalization, etc). It took the startup time from literally MINUTES, to about 10-15 seconds). The general performance seems to be much snappier now as well. Oddly enough, the memory footprint didn't change much, in my case, staying around...
Why compile Python code?
...n memory consumption? I'm testing Python on embedded devices based on mips cpu with only 64MB of RAM, so is there any advantage in memory usage when starting a compiled version of python script?
– valentt
Sep 14 '14 at 9:44
...
What is the function of the push / pop instructions used on registers in x86 assembly?
...uestions/29730/processor-microcode-manipulation-to-change-opcodes
How many CPU cycles are needed for each assembly instruction?
share
|
improve this answer
|
follow
...
What is SaaS, PaaS and IaaS? With examples
...rage, firewalls, load balancers, IP addresses, virtual local area networks etc.
Examples: Amazon EC2, Windows Azure, Rackspace, Google Compute Engine.
PaaS (Platform as a Service), as the name suggests, provides you computing platforms which typically includes operating system, programming languag...
Do any JVM's JIT compilers generate code that uses vectorized floating point instructions?
...ust how the algorithm is, yes I've run Proguard to optimize the byte code, etc.
8 Answers
...
What can you use Python generator functions for?
...an iterate like this:
db = MySQLdb.connect(host="localhost", user="root", passwd="root", db="domains")
cursor = db.cursor()
cursor.execute("SELECT domain FROM domains")
for result in ResultGenerator(cursor):
doSomethingWith(result)
db.close()
...
libcurl的使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...IMEOUT 设置连接等待时间
7. CURLOPT_FOLLOWLOCATION
设置重定位URL
CURLOPT_RANGE: CURLOPT_RESUME_FROM:
断点续传相关设置。CURLOPT_RANGE 指定char *参数传递给libcurl，用于指明http域的RANGE头域，例如：
表示头500个字节：bytes=0-499
表示第二个...