Intel® Trace Analyzer and Collector User and Reference Guide

User Guide

  • 2022.2
  • 08/08/2022
  • Public Content
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.