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Twitter image encoding challenge [closed]
...stead, I store a heavily quantized color (the palette has only 4 * 4 * 4 = 64 colors) that simply gets blended in in some proportion. Mathematically, this is equivalent to a variable brightness and constant contrast adjustment for each color. Unfortunately, it also means there's no negative contra...
IPC performance: Named Pipe vs Socket
...lts are get with IPC benchmarking:
System: Linux (Linux ubuntu 4.4.0 x86_64 i7-6700K 4.00GHz)
Message: 128 bytes
Messages count: 1000000
Pipe benchmark:
Message size: 128
Message count: 1000000
Total duration: 27367.454 ms
Average duration: 27.319 us
Minimum duration: 5.888 ...
avoid page break inside row of table
...is problem, at least for me (Chrome Version 63.0.3239.84 (Official Build) (64-bit) on MacOS Sierra)
Add a CSS rule to the parent table:
table{
border-collapse:collapse;
}
and for the td:
tr td{
page-break-inside: avoid;
white-space: nowrap;
}
I actually found this solution on Stac...
Integer division with remainder in JavaScript?
... // -33, 0.5078 millisec
(a-(a%b))/b // -33, 0.6649 millisec
The above is based on 10 million trials for each.
Conclusion: Use (a/b>>0) (or (~~(a/b)) or (a/b|0)) to achieve about 20% gain in efficiency. Also keep in mind that they are all inconsistent with Math.fl...
How do I check if a number evaluates to infinity?
...
Because IEEE 64bit floats have 53 significant binary digits (see en.wikipedia.org/wiki/IEEE_754 ), so n+1 cannot be represented and is subject to rounding. Well, even integers are affected by rounding errors. Btw, I don't think that your ...
How to pick a new color for each plotted line within a figure in matplotlib?
...red Apr 12 '19 at 13:08
nyanpasu64nyanpasu64
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How do I daemonize an arbitrary script in unix?
...stopped independently of the main service.
Piping the log files through tai64nlocal will translate the timestamps into a human-readable format. (TAI64N is a 64-bit atomic timestamp with a nanosecond count.)
Controlling services
Use svstat to get the status of a service. Note that the logging ser...
What's the correct way to convert bytes to a hex string in Python 3?
...venient transformations like quoted-printable (fits into 7bits ascii), base64 (fits into alphanumerics), hex escaping, gzip and bz2 compression. In Python 2, you could do:
b'foo'.encode('hex')
In Python 3, str.encode / bytes.decode are strictly for bytes<->str conversions. Instead, you can...
Can scripts be inserted with innerHTML?
...
You could Base64 encode your trigger-image as <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7"> (this will not do a network request) Actually... you do NOT need an image, reference a non-exist...
Import file size limit in PHPMyAdmin
...pen this file
edit these parameters:
memory_limit =128M
post_max_size = 64M
upload_max_filesize = 64M
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