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Print number of keys in Redis
...])) / iter
Even iter=100 gives a decent estimate in my case, yet is very fast, compared to keys prefix_.
An improvement is to sample 1000 keys on every request, but keep the total count, so that after two requests you'll divide by 2000, after three requests you'll divide by 3000. Thus, if your ap...
How to declare array of zeros in python (or an array of a certain size) [duplicate]
...uld actually be quite beneficial in your last code snippet and make it run faster?
– devoured elysium
Jan 1 at 16:33
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Conditional Replace Pandas
... df.loc[: , 'my_column'] = df['my_column'].map(f) . I do not know if it is fast like the ones you added below.
– Ozkan Serttas
Nov 10 '18 at 4:56
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分布式系统的事务处理 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...进工作就从未停止，其中动作最大的莫过于2005年发表的Fast Paxos。无论何种改进，其重点依然是在消息延迟与性能、吞吐量之间作出各种权衡。为了容易地从概念上区分二者，称前者Classic Paxos，改进后的后者为Fast Paxos。
总结
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How to save picture to iPhone photo library?
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Deprecated in iOS 9.0.
There`s much more fast then UIImageWriteToSavedPhotosAlbum way to do it using iOS 4.0+ AssetsLibrary framework
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
[library writeImageToSavedPhotosAlbum:[image CGImage] orientati...
ThreadStart with parameters
...;
myNewThread.Start();
this is so far the best answer i could find, it's fast and easy.
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Check if property has attribute
Given a property in a class, with attributes - what is the fastest way to determine if it contains a given attribute? For example:
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How can I make an EXE file from a Python program? [duplicate]
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PyInstaller was perfect, extremely simple and fast. py2exe wouldn't work on python 3.5 and didn't get all the modules in the .exe
– Ryan Pergent
Apr 29 '17 at 13:13
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json_decode to array
...son_decode($object, true); the true does exactly the same, internally much faster.
– TCB13
Dec 12 '13 at 0:13
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Use of Java's Collections.singletonList()?
...ement to it, and
wrap it with an immutable wrapper.
It may also be a bit faster and/or save a bit of memory, but it is unlikely that these small savings will be significant. (An application that creates vast numbers of singleton lists is unusual to say the least.)
How does immutability play ...