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authorQuincey Koziol <koziol@hdfgroup.org>2006-10-16 04:30:07 (GMT)
committerQuincey Koziol <koziol@hdfgroup.org>2006-10-16 04:30:07 (GMT)
commit10e8a68a0c380cc58d831e95271ccc8ce658ad20 (patch)
tree646ed8390da9065d97ac91891bddc180facc67a4 /src/H5Opline.c
parent2374bb1012dd1d1233a3d1f5b807460cece72b0f (diff)
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[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
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