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When is assembly faster than C?
...n of the code and it outputted the numbers the wrong way round (i.e. C was faster!). Fixed and updated the results.
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How to get all columns' names for all the tables in MySQL?
Is there a fast way of getting all column names from all tables in MySQL , without having to list all the tables?
10 Answe...
How do I check which version of NumPy I'm using?
... this works for most well-written python packages.
– fast tooth
Oct 23 '14 at 3:02
1
This is the ...
Remove the last character in a string in T-SQL?
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This is an Underrated comment, it's fast and it doesn't have to select the string twice to work.
– Randall
Sep 5 '19 at 0:18
add a comme...
How many system resources will be held for keeping 1,000,000 websocket open? [closed]
... connections is possible for a properly sized system (lots of CPU, RAM and fast networking) and with a tuned server system and optimized server software.
The number of connections is not the primary problem (that's mostly just a question of kernel tuning and enough memory), it is the processing and...
【内核源码】linux UDP实现 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...RREQ;
daddr = inet->inet_daddr;
dport = inet->inet_dport;
/* Open fast path for connected socket.
Route will not be used, if at least one option is set.
*/
connected = 1;
}
ipc.sockc.tsflags = sk->sk_tsflags;
ipc.addr = inet->inet_saddr;
ipc.oif = sk->sk_bound_dev_if;
...
How to calculate moving average using NumPy?
...oving average, you can easily implement it with np.cumsum, which may be is faster than FFT based methods:
EDIT Corrected an off-by-one wrong indexing spotted by Bean in the code. EDIT
def moving_average(a, n=3) :
ret = np.cumsum(a, dtype=float)
ret[n:] = ret[n:] - ret[:-n]
return ret[n...
What are the differences among grep, awk & sed? [duplicate]
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One can search for a lines in a file with AWK as much fast as with Grep. That's the first case described here: grep vs awk : 10 examples of pattern search (theunixschool).
– Hibou57
Jul 8 '14 at 15:53
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Substitute multiple whitespace with single whitespace in Python [duplicate]
.... I never knew split with no arguments worked like this. This is also much faster, timeit.py gives me around 0.74usec for this, versus 5.75usec for regular expressions.
– Roman
Jan 16 '10 at 16:00
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What are the differences between utf8_general_ci and utf8_unicode_ci? [duplicate]
..._ci. But that’s the price you pay for correctness. Either you can have a fast answer that’s wrong, or a very slightly slower answer that’s right. Your choice.
It is very difficult to ever justify giving wrong answers, so it’s best to assume that utf8_general_ci doesn’t exist and to always...