ru.unix.bsd

 
 - RU.UNIX.BSD ------------------------------------------------------------------
 From : Slawa Olhovchenkov                   2:5030/500     19 Nov 2003  19:48:32
 To : All
 Subject : вести с полей
 -------------------------------------------------------------------------------- 
 

 
 Решил тут почитать cvs-src за последниее полтора месяца. Кое-что интересное
 нашел
 
 jeff        2003/09/30 22:25:27 PDT
 
   FreeBSD src repository
 
   Modified files:
     sys/i386/i386        support.s
     sys/i386/include     md_var.h
   Log:
    - Add ss2_pagezero() for zeroing pages using the movnti instruction.  This
      instruction is enabled with SSE2 but does not use SSE registers.  It is a
      "non-temporal" move which bypasses the cache and does not dirty lines.
 
   Revision  Changes    Path
   1.98      +14 -0     src/sys/i386/i386/support.s
   1.65      +1 -0      src/sys/i386/include/md_var.h
 
 This moves data 3.8x faster than bzero on my laptop.  In a moment I will
 commit pmap bits to make use of it.  This improved my 'make kernel' times
 by almost 2%.  It will do even better in workloads that demand a lot of
 zero pages.
 rwatson     2003/10/01 14:31:09 PDT
 
   FreeBSD src repository
 
   Modified files:
     sys/net              netisr.c
   Log:
   Enable net.isr.enable by default, causing "delivery to completion"
   (direct dispatch) in interrupt threads when the netisr in question
   isn't already active.  If a netisr is already active, or direct
   dispatch is already in progress, we queue the packet for later
   delivery.  Previously, this option was disabled by default.  I have
   measured 20%+ performance improvements in IP packet forwarding with
   this enabled.
 
   Please report any problems ASAP, especially relating to stack depth or
   out-of-order packet processing.
 
   Discussed with: jlemon, peter
   Sponsored by:   DARPA, Network Associates Laboratories
 
   Revision  Changes    Path
   1.4       +1 -1      src/sys/net/netisr.c
 ... Паскаль-программы существуют только для того, чтобы их читали!
 --- GoldED+/BSD 1.1.5
  * Origin:  (2:5030/500)
 
 

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