| checktsc is a user space program that checks TSC synchronization |
| between pairs of CPUs on an SMP system using a technique borrowed |
| from the Linux 2.6.18 kernel. |
| |
| The test passes if all TSCs are within +/- "threshold" clock cycles |
| of each other. The default value of "threshold" is 500 clock cycles |
| and can be changed using the --threshold option. |
| |
| Default behaviour is to check all of the CPUs on a system and to |
| report the observed difference in TSC values between each pair of CPUs. |
| The --cpus option can be used to specify a subset of the CPUs to test. |
| |
| When run with the --silent option the test produces no output (other |
| than for catastrophic errors) and success or failure is indicated by |
| a 0 or 1 exit status from the program. |
| |
| Author: md@google.com |
| License: GPL |
| |
