, no replication, asynchronous mode, message payload 100 bytesTest Project: Cluster total throughput rate for 1 to 3 consumer respectivelyTest result: With a large number of messages in the cluster, the total cluster throughput when using 1 to 3 consumer as shown inIt is known that a single consumer can consume 3.06 million messages per second, which is much larger than the number of messages a single producer can consume per second, which ensures that messages can be processed in a reasonable c
Http://httpd.apache.org/docs/2.0/programs/ AB .html
In website development, sometimes you need to perform performance tests on the website and the response time of the Zhidao website under a certain number of concurrent accesses. Here we will introduce a tool of Apache, Apache benchmark, you can easily perform some performance tests on your website.
Introduct
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Brief introduction
Test
Package testing provides support for automated testing of Go packages. It is intended to being used in concert with the ' Go Test ' command, which automates execution of any function of the form.
TestingThe package provides automated test support for GO packages. This is and
Go TestCommand echoes the function,
Go TestThe command executes automatically so that it c
Ruilog Agian for his work of second benchmark of YAF 2.1.
YAF 2.1 (Docs) did a lot of work to improve performance and reduce memory usage, so let's take a look at the result (Yaf 2. 1 rewrite a lot of logic to improve performance, and reduce memory usage, improve results see test comparison):
The "All", I have to say, I am isn't saying the fastest is the best.
2017 Golang, Python, PHP, C + +, C, Java, Nodejs performance comparisonI in Php/c++/go/py, whim, want to make a simple comparison of the recent mainstream programming language performance, as to how to compare, still have to use the Magic Fibonacci algorithm. It may be more common or fun. Okay, talk is cheap, show me your code! Turn on your Mac, open Clion and st
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Golang unit testing, performance testing, performance monitoring technology
The go language provides powerful testing tools, with an example of a brief introduction
Go Test Unit Testing
Go test-bench=. Performance testing
Go t
Golang Unit Testing, performance testing, performance monitoring technology
The go language provides powerful testing tools, and the following example briefly describes the Go Test unit testing Go test-bench=. Performance test Go tool pprof Performance Monitor go Test unit
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Golang unit testing, performance testing, performance monitoring technology
The go language provides powerful testing tools, with an example of a brief introduction
Go Test Unit Testing
Go test-bench=. Performance testing
Go t
14780
Look at the data is not very intuitive then look at the following chart ...
Summarize:
We can see the computational performance on C + + > Golang > Node. js.
C + + single core and multithreading efficiency are almost golang one times
Golang single-core and multithreaded
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Original address: How to write High-performance code in Golang using Go-routines
Original Author: Vignesh Sk
From: Nuggets translation program
Permanent link to this article: Github.com/xitu/gold-m ...
Translator: Tmpbook
Reviewer: altairlu
How to write high-
Recently learning Golang, always want to experience the next concurrency in the end have more, will I big python strong how much. Learned the official tutorial HTTP service, using the Performance test Tool WRK test, found the result is very surprising ~WRK can refer to my blog, there are basic usage notes: http://blog.yuanzhaoyi.cn/2018/01/12/test.htmlTest command: wrk-t10-d1m-c200 http://127.0.0.1:8080Mean
true that, as you might think, there will be at least one more boost to using Jsoniter performance? The answer is not necessarily!
After our pprof analysis, we replace the JSON library with the following image:
In terms of time, serialization took 9.3s, which was intolerable at this time. Then, out of doubt, I have the call stack diagram of the original JSON Formater, as follows:
The result is very magical, the original Encoding/json to hit th
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Previously seen in the performance comparison test article, is about node. js and Golang HTTP module, simple HelloWorld function, the original text in this:
http://www.cnblogs.com/QLeelulu/archive/2012/08/12/2635261.html#2447171
After this article, node. js and Golang are upgraded
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http://toutiao.com/i6256894054273909249/
Panda TV is a live video platform, the first introduction of our system operating environment, the following 6 services are just a part of our dozens of services, due to the high concurrency and importance, so become Golang small trial sledgehammer the first high-performance high concur
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Golang in the GC this block is relatively weak, frequent application and release of memory will consume a lot of resources. In addition, slice uses an array implementation, there is a problem of capacity and length, when the capacity of slice to continue to add elements need to expand, and this expansion will apply for new space, the old content copied into the new space
:
Advantage of using NULLS over Empty Strings or zeros:
1 NULL requires 1 byte
1 Empty String requires 1 byte (assuming VARCHAR)
1 Zero requires 4 bytes (assuming INT)
You start to see the savings here:
8 NULLs require 1 byte
8 Empty Strings require 8 bytes
8 Zeros Require bytes
On the other hand, I suggest using NULLs over empty strings or zeros, because they ' re more organized, portable, and Requir e less space. To improve performance
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Company to restructure a statistical project, statistics section to provide a web interface, because the statistical system of log volume is very large, so the performance requirements of the Web service is very strict, in the context of technology selection to do the Golang and Java perfo
This article describes performance comparison of golang, python, php, c ++, c, java, and Nodejs, for more information about golang, python, php, c ++, c, java, and Nodejs performance comparison
When I was in PHP/C ++/Go/Py, I had a whim and wanted to make a simple comparison of the
Golang provides us with a very convenient performance testing tool pprof, which makes it easy to monitor the running efficiency of the GO program with Pprof. This article describes how to use PPROF to perform performance testing on the Go program and use Qcachegrind to view the output file for the performance test.Load
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