cvs commit: src/sys/i386/i386 trap.c vm_machdep.c src/sys/i386/isa intr_machdep.c src/sys/kern kern_resource.c kern_sig.c kern_switch.c kern_synch.c kern_time.c lwkt_msgport.c lwkt_thread.c src/sys/sys proc.h thread.h thread2.h

[Matthew Dillon]

dillon      2004/04/10 13:55:24 PDT

DragonFly src repository

  Modified files:
    sys/i386/i386        trap.c vm_machdep.c 
    sys/i386/isa         intr_machdep.c 
    sys/kern             kern_resource.c kern_sig.c kern_switch.c 
                         kern_synch.c kern_time.c lwkt_msgport.c 
                         lwkt_thread.c 
    sys/sys              proc.h thread.h thread2.h 
  Log:
  Do some minor critical path performance improvements in the scheduler
  and at the user/system boundary.  Avoid some unnecessary segment prefix ops,
  remove some unnecessary memory ops by using more optimal critical
  section inlines, and use 32 bit arithmatic instead of 64 bit arithmatic
  when calculating system tick overheads in userret().
  
  This saves a whopping 5ns worth of syscall overhead, which just proves
  how silly I am sometimes.
  
  Revision  Changes    Path
  1.49      +41 -38    src/sys/i386/i386/trap.c
  1.29      +3 -3      src/sys/i386/i386/vm_machdep.c
  1.22      +6 -3      src/sys/i386/isa/intr_machdep.c
  1.19      +4 -3      src/sys/kern/kern_resource.c
  1.29      +2 -2      src/sys/kern/kern_sig.c
  1.21      +4 -4      src/sys/kern/kern_switch.c
  1.32      +23 -47    src/sys/kern/kern_synch.c
  1.15      +6 -5      src/sys/kern/kern_time.c
  1.18      +6 -5      src/sys/kern/lwkt_msgport.c
  1.59      +80 -80    src/sys/kern/lwkt_thread.c
  1.48      +1 -1      src/sys/sys/proc.h
  1.51      +2 -2      src/sys/sys/thread.h
  1.14      +12 -0     src/sys/sys/thread2.h


http://www.dragonflybsd.org/cvsweb/src/sys/i386/i386/trap.c.diff?r1=1.48&r2=1.49&f=h
http://www.dragonflybsd.org/cvsweb/src/sys/i386/i386/vm_machdep.c.diff?r1=1.28&r2=1.29&f=h
http://www.dragonflybsd.org/cvsweb/src/sys/i386/isa/intr_machdep.c.diff?r1=1.21&r2=1.22&f=h
http://www.dragonflybsd.org/cvsweb/src/sys/kern/kern_resource.c.diff?r1=1.18&r2=1.19&f=h
http://www.dragonflybsd.org/cvsweb/src/sys/kern/kern_sig.c.diff?r1=1.28&r2=1.29&f=h
http://www.dragonflybsd.org/cvsweb/src/sys/kern/kern_switch.c.diff?r1=1.20&r2=1.21&f=h
http://www.dragonflybsd.org/cvsweb/src/sys/kern/kern_synch.c.diff?r1=1.31&r2=1.32&f=h
http://www.dragonflybsd.org/cvsweb/src/sys/kern/kern_time.c.diff?r1=1.14&r2=1.15&f=h
http://www.dragonflybsd.org/cvsweb/src/sys/kern/lwkt_msgport.c.diff?r1=1.17&r2=1.18&f=h
http://www.dragonflybsd.org/cvsweb/src/sys/kern/lwkt_thread.c.diff?r1=1.58&r2=1.59&f=h
http://www.dragonflybsd.org/cvsweb/src/sys/sys/proc.h.diff?r1=1.47&r2=1.48&f=h
http://www.dragonflybsd.org/cvsweb/src/sys/sys/thread.h.diff?r1=1.50&r2=1.51&f=h
http://www.dragonflybsd.org/cvsweb/src/sys/sys/thread2.h.diff?r1=1.13&r2=1.14&f=h