大约有 2,600 项符合查询结果（耗时：0.0126秒） [XML]
How to debug Lock wait timeout exceeded on MySQL?
...tion count 9014315, signal count 7805377
Mutex spin waits 0, rounds 11487096053, OS waits 7756855
RW-shared spins 722142, OS waits 211221; RW-excl spins 787046, OS waits 39353
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LATEST FOREIGN KEY ERROR
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110507 21:41:35 Transaction:
TRANSACTION 0 606162...
Secure hash and salt for PHP passwords
...hash passwords with SHA1 or MD5 or even SHA256! Modern crackers can exceed 60 and 180 billion hashes/second (respectively).
Don't mix bcrypt and with the raw output of hash(), either use hex output or base64_encode it. (This applies to any input that may have a rogue \0 in it, which can seriously we...
Algorithm to find top 10 search terms
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ericksonerickson
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Multi-gradient shapes
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</shape>
</item>
<item android:top="90dp" android:end="60dp">
<shape android:shape="rectangle">
<solid android:color="#e2cc2626" />
</shape>
</item>
<item android:start="50dp" android:bottom="20dp" android:top="120dp">
<shap...
xkcd style graphs in MATLAB
...69 0.3582 0.3895 0.4061 0.4337 0.4558 0.4797 0.5074 0.5276 0.5589 0.5810 0.6013 0.6179 0.6271 0.6344 0.6381 0.6418 0.6529 0.6713 0.6842 0.6934 0.7026 0.7118 0.7265 0.7376 0.7560 0.7726 0.7836 0.7965 0.8149 0.8370 0.8573 0.8867 0.9033 0.9346 0.9659 0.9843 0.9936];
yS = [0.2493 0.2520 0.2548 0.2548 0....
What is Ember RunLoop and how does it work?
... but if you find yourself wanting to animate 30 circles with Javascript at 60 frames per second, there might be better ways to go about it than relying on Ember's RunLoop.
Is RunLoop being executed at all times, or is it just indicating a period of time from beginning to end of execution and may n...
Where do you store your salt strings?
...the algorithm and the hash. This string can be stored in a single field of 60 characters length.
– martinstoeckli
May 30 '13 at 6:56
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Floating point vs integer calculations on modern hardware
...),
64-bit Intel Xeon X5550 @ 2.67GHz, gcc 4.1.2 -O3
short add/sub: 1.005460 [0]
short mul/div: 3.926543 [0]
long add/sub: 0.000000 [0]
long mul/div: 7.378581 [0]
long long add/sub: 0.000000 [0]
long long mul/div: 7.378593 [0]
float add/sub: 0.993583 [0]
float mul/div: 1.821565 [0]
double add/sub: ...
How to make a great R reproducible example
... Is there a way to use dput to reproduce the mid-section of data, say rows 60 through 70?
– BgnR
Apr 10 '14 at 13:12
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How should a model be structured in MVC? [closed]
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netcodernetcoder
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