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Apache Spark: The number of cores vs. the number of executors
..._ratio_runtime = 1/(duration_job2 / duration_job1) = 1/(55/50) = 50/55 = 0.91
It's not as perfect as the last comparison, but we still see a similar drop in performance when we lose threads.
Now for the last bit: why is it the case that we get better performance with more threads, esp. more threa...
Unable to set data attribute using jQuery Data() API
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Leniel MaccaferriLeniel Maccaferri
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Excel RTD(Excel Real-Time Data)实时刷新数据技术 - C/C++ - 清泛网 - 专注C/C++及内核技术
...在MSDN的Real-Time Data FAQ上有其性能描述（http://msdn.microsoft.com/en-us/library/aa140060(v=office.10).aspx#odc_xlrtdfaq_whatisrtd），据说在一台配置为 Pentium III 500 MHz 的CPU和 128 MB 内存的电脑上，RTD可以在一秒内对20000个独立的主题（topic）更新三次...
Biggest advantage to using ASP.Net MVC vs web forms
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It provides RAD development
Easy development model for developers those coming from winform development.
share
edited Aug 15 '11 at 22:56
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What does 'const static' mean in C and C++?
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FerruccioFerruccio
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Are Javascript arrays sparse?
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Justin LoveJustin Love
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Traits in PHP – any real world examples/best practices? [closed]
...tax and understand the idea behind traits, like horizontal code re-use for common stuff like logging, security, caching etc.
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Is it possible to read from a InputStream with a timeout?
...eTask.java:228)
at java.util.concurrent.FutureTask.get(FutureTask.java:91)
at test.InputStreamWithTimeoutTest.main(InputStreamWithTimeoutTest.java:74)
I can catch the TimeoutException and do whatever cleanup I want.
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Reset C int array to zero : the fastest way?
...vx):
int:
memset: 268
fill: 268
ZERO: 268
intrin_ZERO: 91
long long:
memset: 402
fill: 399
ZERO: 400
intrin_ZERO: 185
msvc 2015 (optimization flags: /OX /arch:AVX /Oi /Ot):
int
memset: 196
fill: 613
ZERO: 221
intrin_ZERO: 95
long long:
mem...
Why should I use an IDE? [closed]
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91
I guess emacs is an IDE, then ;)
– Svante
Nov 14 '08 at 0:20
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