System and Method for Time Stamp Synchronization

A method for time stamp synchronization, the method comprising:

• performing the following in a host, wherein the host is part of a system comprising a first device and a second device, wherein each of the host and first and second devices comprises a respective clock operating in a respective time domain, and wherein at least one of the clocks is not synchronized with respect to another clock:
• providing a common time stamp to first and second log entries using a clock in the host;
• sending the first and second log entries from the host to the first and second devices, respectively, wherein the first and second devices provide their own time stamp to the log entries, whereby the first and second log entries have two time stamps:
• the common time stamp provided by the host and a time stamp provided by one of the devices;
• and
• determining an amount of non-synchronization between the clocks using the two time stamps provided in the log entries.

A host comprising:

• at least one interface through which to communicate with a first computing device comprising a first clock operating in a first time domain and a second computing device comprising a second clock operating in a second time domain;
• means for storing, in each of first and second log entries, a common time stamp generated by a third clock operating in a third time domain;
• means for sending the first log entry to the first computing device, wherein the first computing device is configured to store a first additional time stamp in the first log entry;
• and
• means for sending the second log entry to the second computing device, wherein the second computing device is configured to store a second additional time stamp in the second log entry;
• wherein the common time stamp and the first and second additional time stamps provide an indication of skew between at least two of the clocks.