Developer Guide and Reference

Contents

qopt-prefetch, Qopt-prefetch

Enables or disables prefetch insertion optimization.

Syntax

Linux and macOS:
-qopt-prefetch
[
=
n
]
-qno-opt-prefetch
Windows:
/Qopt-prefetch
[
:
n
]
/Qopt-prefetch-
Arguments
n
Is the level of software prefetching optimization desired. Possible values are:
0
Disables software prefetching. This is the same as specifying
-qno-opt-prefetch
(Linux* and
macOS*
) or
/Qopt-prefetch-
(Windows*).
1
to
5
Enables different levels of software prefetching. If you do not specify a value for
n
, the default is
2
. Use lower values to reduce the amount of prefetching.
Default
-qno-opt-prefetch
or
/Qopt-prefetch-
Prefetch insertion optimization is disabled.
Description
This option enables or disables prefetch insertion optimization. The goal of prefetching is to reduce cache misses by providing hints to the processor about when data should be loaded into the cache.
This option enables prefetching when highe