Does this make sense? I would also add a config option if we want to go this way.

I wonder about having it all in one file. It is definitely simpler, but this forces us to put the filename on each line. Seems like a lot of duplication.

Perhaps ts_offsets instead of ts_state?

Do we need the header in the file?

Should we make our granularity configurable?

The %f format for the time seems like overkill. We can never be that granular. Might be best to just use %.0f.

At some point (probably as follow-on work), we might want to add some code that can combine the timestamp data with the logs on the fly, perhaps even have the web offer that option.

Rebased due to merge conflict, added split logs and configuration. Also fixed some problem with multiple opening of ts.log leading to non-monotonous values.

Commit d9682472 fixes this pull-request