David Young
  1. David Young

vchoi_fork

Vailin Choi
Public

Commits

Quincey Koziol
2374bb1012d
Quincey Koziol committed 10e8a68a0c3
[svn-r12760] Description:
    Speculatively attempt to read in the entire first chunk in object header
with the object header prefix.  If successful (which it is most of the time),
this reduces by 1 the # of I/Os required to read in the object header.  Since
the object header typically was taking 2 I/Os, this should cut the number of
I/O operations when opening an object's header in half.

Tested on:
    FreeBSD/32 4.11 (sleipnir) w/threadsafe
    Linux/32 2.4 (heping) w/C++ & FORTRAN