| /* Copyright (c) 2013 Gianni Tedesco | |
| * Released under the terms of the GNU GPL version 3 | |
| * mmap() packet socket transmission | |
| */ | |
| #ifndef __linux__ | |
| #error "Are you loco? This is Linux only!" | |
| #endif | |
| #include <stdio.h> |
Intel DPDK
Key software components
Environment Abstraction Layer provides access to low-level resources: memory space, logical cores
Memory Pool Manager allocates numa-aware pools of objects in huge-page memory space
SPDK subcomponents:
network front end Nic Driver: a fast data path from Nic to user space userspace networking services: cracking TCP/IP packets and forming iSCSI commands
processing framework translates iSCSI commands into SCSI block-level commands
http://lass.cs.umass.edu/~shenoy/courses/fall08/schedule.html
Too much Milk What are the correctness properties for this problem? – Only one person buys milk at a time. – Someone buys milk if you need it
Solution 1: Lock->Accquire()
| Ref: https://arxiv.org/pdf/1309.4507.pdf | |
| Sempahore(n) | |
| Decrement opeartion => wait | |
| Increment operatorn => signal | |
| mutex = sempaphore(1) | |
| Classical Solution | |
| init: |
| http://www.robobunny.com/projects/asciiquarium/html/ | |
| cd /tmp/ | |
| sudo apt-get install libcurses-perl | |
| wget http://search.cpan.org/CPAN/authors/id/K/KB/KBAUCOM/Term-Animation-2.4.tar.gz | |
| tar -zxvf Term-Animation-2.4.tar.gz | |
| cd Term-Animation-2.4/ | |
| perl Makefile.PL && make && make test | |
| sudo make install | |
| cd /tmp |
| sudo apt-get update | |
| sudo apt-get install openssh-server | |
| sudo ufw allow 22 | |
| http://askubuntu.com/questions/51925/how-do-i-configure-a-new-ubuntu-installation-to-accept-ssh-connections |
| https://www.artofproblemsolving.com/wiki/index.php?title=AMC_8_Problems_and_Solutions |
| Reference:http://www.informit.com/articles/article.aspx?p=1374896&seqNum=7 | |
| An = 2/(n*pi) | |
| where: | |
| An = the amplitude of the nth harmonic | |
| pi = the constant, 3.14159... | |
| n = the harmonic number, only odd allowed |
| # ref: https://git-scm.com/book/en/v2/Git-Tools-Submodules | |
| # export GITCLONEOPTIONS="--depth 1" | |
| # git clone url | |
| # git clone --recursive url | |
| # git config --global diff.submodule log | |
| # Pulling in Upstream Changes | |
| # git fetch | |
| # git merge origin/master |