User and Reference Guide

Contents

PCTRACE-CACHE

Syntax
PCTRACE-CACHE [on|off]
Variable
VT_PCTRACE_CACHE
Default
on
Description
When the reliable stack unwinding through
libunwind
is used, caching the previous stack back trace can reduce the number of times
libunwind
has to be called later on. When unwinding only a few levels this caching can negatively affect performance, therefore it can be turned off with this option.

Product and Performance Information

1

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