improving rr's trace compatibility story

Robert O'Callahan robert at
Thu Jul 27 22:48:01 UTC 2017

On Fri, Jul 28, 2017 at 10:42 AM, Cacho Bot <cachobot at> wrote:

> Used Cap'n Proto before. It's actually much faster than its alternatives
> and the extensiveness works like a charm.
> I'm not sure if it will work for a big file format in disk though (not
> that I have something against it but I've never thought about it). For
> example, does it need to partially write some field and continue later when
> recording?

No. Our files are streams of independent records and each record is fairly
small (except for the raw-data records, but those would not be handled by

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