UTIME

Goal

Achieve microsecond resolution timing.

Introduction

  • Micro-Second Resolution Timers for Linux.
  • Developed by the University of Kansas Center for Research.
  • Support for Linux 2.0, 2.1, 2.2.
  • Is already a dead project since 2001.

Implementation

  • Linux maintains jiffies for the number of 10ms timer ticks since reset.
  • UTIME maintains jiffies_u for usec within a 10ms tick using TSC.
  • Switched timer to one-shot mode after the CPU counter is calibrated.

Reference

documents/micro_timer/micro_timer.txt · 上一次變更: 2008/03/10 02:08 由 whliao
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