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libevent对比libev的基准测试 - C/C++ - 清泛网 - 专注C/C++及内核技术
... API 并以不同方式输出时间。
对于 libevent，使用版本 1.4.3，而对于 libev，使用版本 3.31。库和测试程序均由带有优化选项的 gcc 4.2.3 版编译，-O3 -fno-guess-branch-probability -g并在带有 Debian GNU/Linux（Linux 版本 2.6.24-1）的 3.6GHz Core2 Quad ...
How can I convert a PFX certificate file for use with Apache on a linux server?
...pdate your Apache configuration file with:
<VirtualHost 192.168.0.1:443>
...
SSLEngine on
SSLCertificateFile /path/to/domain.cer
SSLCertificateKeyFile /path/to/domain.key
...
</VirtualHost>
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Difference between CPPFLAGS and CXXFLAGS in GNU Make
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edited Apr 12 '12 at 3:39
Ergwun
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answered J...
What is the difference between JOIN and UNION?
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308
UNION puts lines from queries after each other, while JOIN makes a cartesian product and subse...
How to initialize a dict with keys from a list and empty value in Python?
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dict.fromkeys([1, 2, 3, 4])
This is actually a classmethod, so it works for dict-subclasses (like collections.defaultdict) as well. The optional second argument specifies the value to use for the keys (defaults to None.)
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Get first n characters of a string
...ngths on trimmed and untrimmed strings):
$string = (strlen($string) > 13) ? substr($string,0,10).'...' : $string;
So you will get a string of max 13 characters; either 13 (or less) normal characters or 10 characters followed by '...'
Update 2:
Or as function:
function truncate($string, $len...
setting multiple column using one update
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344
Just add parameters, split by comma:
UPDATE tablename SET column1 = "value1", column2 = "val...
Change the font of a UIBarButtonItem
... forState:(UIControlState)state
but this is for iOS5 only. For iOS 3/4, you will have to use a custom view.
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Can someone explain collection_select to me in clear, simple terms?
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306
collection_select(
:post, # field namespace
:author_id, # field name
# result of ...
Difference between adjustResize and adjustPan in android?
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243
From the Android Developer Site link
"adjustResize"
The activity's main window is always resize...