TSC-I2 (TSC-Internet2)

TSC-I2 is a software package to provide alternative to traditional gettimeofday() system call, and to provide more precise time at micro-second level. Its components include a user-mode daemon tsci2d, a C library libtsci2 and a set of utility tools as tsci2demo and tsci2measure. Current implementation supports IA32, AMD64 and Power PC architectures, as well as Linux, FreeBSD, Mac OS X and Microsoft Windows operating systems.

It's name consists of two parts: TSC is the 64 bit register that increments at CPU cycle speed, whose high resolution nature is taken advantage of; Internet2 is a consortium working on advanced next generation internet, who is a sponsor and user of this package. Possible Internet2 applications that will be using tsc-i2 include thrulay and owamp.

See also the project page.

Documentation

• Manual pages
• A Short Technical Report

Download

Tarball releases of TSC-I2 are published here on a irregular basis. The lastest release is version 0.08.

Source code of TSC-I2 is hosted on sourceforge.net and can be got through anonymous CVS:

cvs -d:pserver:anonymous@cvs.sf.net:/cvsroot/tsc-xluo checkout -P tsc-xluo

Evolution

Resources

1. David Mills NTP resouce page.
2. Alex Holkner's fasttime.
3. Mills, D.L. Improved algorithms for synchronizing computer network clocks. IEEE/ACM Trans. on Networks (June 1995), 245-254. [PS].
4. A design notes of NTP 4. [PDF].
5. NTP implementation, v4.2.0. [tarball].
6. Stanislav Shalunov, NTP Implementation and Assumptions about the Network. [PDF].
7. Attila Piasztor,Darryl Veitch,PC Based Precision Timing Without GPS. [PDF].

Contact

Xun Luo(Homepage, Email) is the author of TSC-I2 and maintains all the source codes and documentations. Your bug reports, improvement suggestions and other inputs are greatly welcome and appreciated. Thanks for using TSC-I2!

Supported by     Summer of code