located in: GO/SRC/PKG/RUNTIME/PROC.C
4) memory model
Each process in Erlang has its own heap,stack at the bottom of the heap, where the stack is a stack of Erlang process, similar to the operand stack in Java, stack down, stack top encountered heap top , the stack is moved to a new place after GC,GC.
Go is native execution, Goroutine stack is segment STACK,TNS
OS apns-apple Notification Server and third party provider the principle of communication online has been a lot of introduction, here no longer introduced, there is want to know everyone can go to the iOS website https://developer.apple.com/ library/ios/documentation/networkinginternet/conceptual/remotenotificationspg/chapters/applepushservice.html#/ /APPLE_REF/DOC/UID/TP40008194-CH100-SW1 learn to learn. Online about iOS APNs to implement very little, generally Java or PHP, there is a C + + imp
Target
(1) understand the impact of erlang concurrent process scheduling on the load of each cpu core in a multi-core cpu environment;
(2) memory increase mechanism of Erlang virtual machine;
(3) scheduling of Erlang processes;
(4) monitor cpu usage in LinuxLab Environment
Lenovo minicomputer: Operating System: RedHat Enterprise LinuxServer release6.4 (Santiago)
improved in the future, scheduler and GC have a lot of discussions. The implementation logic of scheduler and Its simplicity (G M ), compared with the Erlang scheduler, it is simpler (there are some bugs in it, and there are also issues with fairness ).
Erlang scheduler is located at: OTP/ERTs/emulator/beam/erl_process.c
Go scheduler is located at: Go/src/PKG/runtime/proc. c
4) Memory
As a programmer, we once heard a lot of "industry news" and "technological innovation", and once came into contact with many "Master sayings" and "authoritative recommendations ". These are correct or not!
Now, let's welcome the Erlang feast!I. Experience
When searching for code in koders.com on December 31, November 2007, we found *. the source file in ERL format is amazed at the variety of development languages. At this time, I think
As projects become more dependent on Erlang, the problems they encounter increase. The system encountered high memory consumption problem in the previous time line, and recorded the analysis process of troubleshooting. The online system uses the Erlang R16B02 version.Problem descriptionThere are several online systems that run for some time and the memory soars. The system
This article is mainly about go, from the perspective of comparative analysis of language. The reason why I chose to compare with Python and Erlang is that it is a high-level language, they have a large similarity in language characteristics, but the main reason is that I am more familiar with them.Many of the language features of Go are drawn from its three ancestors: C,pascal and CSP. Go's grammar, data type, control flow, etc. inherit from C,go's p
doesn't cause a load problem when a node fails.The FIFO model is used in an indeterminate delay scenario.-meta custeringThis section appears in the first 29 minutes of the speech, unfortunately, but the amount of information is small.A method is needed to control the volume of a single cluster and allow him to span a long distance.The establishment of wandist, distributed transmission based on GEN_TCP, consists of many nodes that need to communicate
Read erlang.org above Erlang course four-day tutorial1. Number type, two points to note1) B#val represents the number Val stored in B-binary, such as7> 2#101.5101 of binary storage is 10 binary 5.2) $Char The ASCII encoding that represents char, for example, $ A = 652. More difficult to translate the concept of--atom, can be understood as a constant, it can contain any character, start with a lowercase letter, if not start with a lowercase letter or a
Goal(1) Understand the effect of Erlang concurrent process scheduling on CPU core load in multi-core CPU environment;(2) The memory increment mechanism of erlang virtual machine;(3) The operation of Erlang process;(4) Monitoring CPU usage under LinuxExperimental environmentLenovo Minicomputer: Operating system: RedHat Enterprise linuxserver release6.4 (Santiago)K
Erlang vs. cerl
As we all know, Erlang is not introduced here. Its advantages include:
The most concise and refined Distributed Model
Node, process, mail (Message)
The most elegant error handling model: fail fast)
If any exception occurs, immediately die.
Genserver programming framework
The
Recently, I took the time to read some Erlang things. They are very interesting, pure functional programming, and process/message programming models. Of course, what I care about most is the basic philosophy behind language design about building a robust system.
Functional programming is not new, and it is not new. It has been available in lisp for a long time. Erlang looks like a pure FP language, looks g
Goal(1) Understand the effect of Erlang concurrent process scheduling on CPU core load in multi-core CPU environment;(2) The memory addition mechanism of Erlang virtual machine;(3) The operation of Erlang process;(4) Monitoring CPU usage under LinuxExperimental environmentLenovo Minicomputer: Operating system: RedHat Enterprise linuxserver release6.4 (Santiago)Ke
Notes SeriesErlang Environment and sequential programmingErlang Concurrent ProgrammingErlang Distributed programmingYawsErlang/otpDate Change Description2014-12-21 A Outline, 1Agenda0 ScopeAround the OTP design principles, record behavioral patterns, supervisory tree concepts, applications, releases and deployments, and a product-level caching solution in [3].1 OTP Design PrinciplesErlang Doc: OTP Design principles User ' s guideThe OTP design principle illustrates how
Erlang can't miss the feast
(Trot into Erlang's world)
Author: Chenglitao (litaocheng@gmail.com)
As programmers, we have hearing a lot of "industry dynamics", "technological innovation", once contacted a lot of "master motto", "authoritative recommendation." Whether these are correct or not is a past.
Now, let's Meet the Erlang feast. First, Experience
November 2007 in koders.com Search code, found in the
:
Process_flag (priority, Pri)
The PRI can be normal, low, and the default is normal
A higher priority process will perform a little more than a relatively low level.
7. Group of processes (process group)all Erlang processes have a PID associated with a group leader that they share, and will be added to the same process group when a new process is created. The group Leader of the original system process is itself, so it is also the g
The feast that Erlang cannot miss(Trot into the world of Erlang)Chenglitao ([email protected])As programmers, we have upon hearing a lot of "industry dynamics", "technological innovation", has been exposed to a lot of "master Proverbs", "authoritative recommendations." These are right or not, have become the past!Now, let's Meet the Erlang feast!First, experience
Exit interaction mode: Ctrl + C and then press a; halt ().The command must be followed by a break '.' to be valid.% Comment out the current code to the end of the lineCompile ERL code C (modulename)
_ Represents any variableA variable can be assigned only once in its context (scope ).
For help: Use Erl-man XX in bash
File start format:-Module (modulename ).-Export ([funcname1/paranum,...]).
A Data Type in Erlang, which starts with a lowercase letter.
Into the world of ErlangAs programmers, we have upon hearing a lot of "industry dynamics", "technological innovation", has been exposed to a lot of "master Proverbs", "authoritative recommendations." These are right or not, have become the past!Now, let's Meet the Erlang feast!ExperienceNovember 2007 in koders.com Search code, found the *.erl format of the source files, exclamation the development of the language of the pattern, at this time, I think
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.