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内存优化总结:ptmalloc、tcmalloc和jemalloc - 操作系统(内核) - 清泛网 - ...
...增加，tcmalloc性能上也有明显的优势，并且相对平稳。
github mysql优化
github使用tcmalloc后，mysql性能提升30%
Jemalloc
jemalloc是facebook推出的， 最早的时候是freebsd的libc malloc实现。 目前在firefox、facebook服务器各种组件中大量使用。
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How to detect total available/free disk space on the iPhone/iPad device?
...ritten a class to get available/used memory using Swift.
Demo at: https://github.com/thanhcuong1990/swift-disk-status
Swift 4 updated.
import UIKit
class DiskStatus {
//MARK: Formatter MB only
class func MBFormatter(_ bytes: Int64) -> String {
let formatter = ByteCountFormatte...
Get the subdomain from a URL
...forge.net/projects/publicsuffix/
PHP: php-domain-parser
C# / .NET: https://github.com/danesparza/domainname-parser
Python: http://pypi.python.org/pypi/publicsuffix
Ruby: domainatrix, public_suffix
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How can I automate the “generate scripts” task in SQL Server Management Studio 2008?
...ripts from the command line in Linux. All you need is .Net Core 2 preview: github.com/mkurz/SQLServerScripter
– mkurz
Aug 1 '17 at 17:11
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How do I sort unicode strings alphabetically in Python?
...an PyICU which relies on an external C library.
I uploaded the script to github as the original was down at the time of this writing and I had to resort to web caches to get it:
https://github.com/href/Python-Unicode-Collation-Algorithm
I successfully used this script to sanely sort German/Frenc...
What's the difference between git clone --mirror and git clone --bare
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A nuanced explanation from the GitHub documentation on Duplicating a Repository:
As with a bare clone, a mirrored clone includes all remote branches and tags, but all local references will be overwritten each time you fetch, so it will always be the sa...
How to have conditional elements and keep DRY with Facebook React's JSX?
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Thanks. I recommend reading this github.com/facebook/react/issues/690 This link has been posted in the comments bellow this question and I noticed it after I had posted my solution. If you check it, some guy mentions this solution as well but does not recomm...
Unable to resolve “unable to get local issuer certificate” using git on Windows with self-signed cer
...unable to get local issuer certificate" when I do e.g. a git clone https://github.com/Microsoft/vscode.git. Finally I used the answer from stackoverflow.com/a/47196562/1323552 (Ben P.P. Tung) to tune my sslCAInfo config specific to my git server to solve it.
– Johnny Wong
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Install NPM into home directory with distribution nodejs package (Ubuntu)
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The following script claims to automate this: github.com/glenpike/npm-g_nosudo
– Mike R
Feb 5 '16 at 21:24
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Is there a way to create xxhdpi, xhdpi, hdpi, mdpi and ldpi drawables from a large scale image?
... This plugin appears to be no longer maintained - last commit in 2016 ( github.com/winterDroid/… ), crash reports without any response...
– reducing activity
Mar 7 '18 at 11:38
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