multiprocessor.

$cat /proc/1119/cpuset
/
$
lightweight objects in the linux kernel that enable users
to partition their multiprocessor machine.
Knowledge
Multiprocessing  is  the  use  of  two  or  more  central
processing units (CPUs) within a single computer system
source : http://en.wikipedia.org/wiki/Multiprocessing
Compiler
GNU Make
 -j [jobs], --jobs[=jobs]
Specifies   the  number   of  jobs   (commands)   to  run
simultaneously.  If there is more than one -j option, the
last one is effective.  If the -j option is given without
an argument, make will not  limit the number of jobs that
can run simultaneously.

computer networks
machines  with  multiple  processors can  attach  network
programs  of higher  priorities  to a  processor that  is
little consumed or idle.

here-today

JoshWoodward-HereTodayRemixed-09-MorningAfter

ethanoic acid

Acetic acid, CH3COOH, also  known as ethanoic acid, is an
organic  acid  that  gives  vinegar its  sour  taste  and
pungent smell.  It is a weak  acid, in that it  is only a
partially dissociated acid in an aqueous solution.

http://en.wikipedia.org/wiki/Acetic_acid

nVidia Corporation MCP61 Ethernet

1. apt-get install linux-image-2.6.32-5-amd64-dbg
2. apt-get install kernel-patch-kdb

full size packets . tcp_retrans_collapse

$cat /proc/sys/net/ipv4/tcp_retrans_collapse
1
$

Try to send full-sized packets during retransmit.
This is enabled by default.
TCP smart Framing, or TCP-SF for short, enables  the Fast
Retransmit/Recovery  algorithms even when  the congestion
window  is small.  Without modifying  the  TCP congestion
control              based             on             the
additive-increase/multiplicative-decrease        paradigm,
TCP-SF  adopts  a  novel  segmentation  algorithm:  while
Classic TCP  always tries to send  full-sized segments, a
TCP-SF  source  adopts  a  more flexible  s  segmentation
algorithm to try and always  have a number of in flight s
segments larger than 3 so  as to enable Fast Recovery. We
motivate  this  choice by  real  traffic c  measurements,
which indicate  that today's  traffic is is  populated by
short-li flows, whose only means to recover from a packet
loss is  by triggering a Retransmission  Timeout. The key
idea of  TCP-SF can  be imple- mented  on top of  any TCP
flavor,   ,  from   Tahoe   to  SACK,   and  re-   quires
modifications s to the server  TCP stack only, and can be
easily  coupled   with  recent  TCP   enhancements.   The
performance of the proposed TCP modification were studied
by means  of simulations,  live measurements and  an ana-
lytical model. In addition,  the analytical model we have
devised has a  general scope, making it a  valid tool for
TCP  performance evaluation in  the small  window region.
Improvements  are  remark-   able  under  several  buffer
management   schemes,  and  maximized   by  byte-oriented
schemes.

TCP Smart Framing: A Segmentation Algorithm
to Reduce TCP Latency
Marco Mellia, Member, IEEE, Michela Meo, Member, IEEE, and Claudio Casetti

connection with Dia.







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