find hammer tid by timestamp

Johannes Hofmann johannes.hofmann at
Fri Oct 24 07:27:29 PDT 2008

Matthew Dillon <dillon at> wrote:
> :Hi,
> :
> :finally I implemented a method to get a hammer tid from
> :around a given time.
> :
> :This patchlet adds timestamps to the output of hammer mirror-dump:
> :
> :And this bash script makes use of it to find a tid from around a given
> :time stamp:
> :
> :
> :You can call it like this:
> :
> <filesystem> <secs since epoch>
> :
> :Here is an example:
> :...
> :Cheers,
> :Johannes
> :
> :PS: Please correct me if I'm missing something!
>    Hey, pretty good!  I was a bit surprised someone did it in a
>    shell script, and I think it might eat a lot of memory, but
>    it is a good demonstration.  Thanks for writing it!

Note that this doesn't quite implement what you suggested in
as this can take a lot of time. It rather does a binary search.
Memory consumption should be no issue.

If you think the method is ok, I could make a patch for hammer(8) that
does the same thing in C.


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