User Guide

Contents

reduce-lock-overhead

Examine specified annotated sites for opportunities to reduce lock overhead in a Suitability report.

Syntax

--reduce-lock-overhead
=
<string>
Arguments
<string>
is a comma-separated list of annotated sites (no spaces).
Default
No default argument
Actions Modified
report
=suitability
Usage
Lock overhead is the time spent creating, destroying, acquiring, and releasing locks (as opposed to lock contention, which is the time spent waiting for a lock held by another task). Think of lock overhead as the cost of lock operations, assuming the lock is always available.
Usage of this option simulates parallel execution with the assumption that lock overhead is zero for a specified site.
Generate a Suitability report. Examine the annotated sites
myAnnotatedSiteJ
and
myAnnotatedSiteX
for opportunities to reduce lock overhead. Write the report to
stdout.
$ advisor --report=suitability --project-dir=./advi --reduce-lock-overhead=myAnnotatedSiteJ,myAnnotatedSiteX

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.