Re: [PATCH v6 00/11] add performance tracing facility

> Changes since v5:
> [05/11]: GIT_TRACE_BARE=1 disables 'timestamp file:line' output for
>         unit tests that rely on trace output (t1510 and t5503)
> [08/11]: Align original trace output at col 40
> [09/11]: Dropped '(div 10e9)' from the commit message.
> [10/11]: Dropped trace_performance[_since]() return value and the
>         respective usage example. Renamed trace_performance_vfl to
>         trace_performance_vprintf_fl.
>
> The other patches are the versions from pu.
>
> Karsten Blees (11):
>  trace: move trace declarations from cache.h to new trace.h
>  trace: consistently name the format parameter
>  trace: remove redundant printf format attribute
>  trace: factor out printing to the trace file
>  trace: add infrastructure to augment trace output with additional 
> info
>  trace: add current timestamp to all trace output
>  trace: move code around, in preparation to file:line output
>  trace: add 'file:line' to all trace output
>  trace: add high resolution timer function to debug performance issues
>  trace: add trace_performance facility to debug performance issues
>  git: add performance tracing for git's main() function to debug
>    scripts
>
> Makefile              |   7 ++
> cache.h               |  13 +--
> config.mak.uname      |   1 +
> git-compat-util.h     |   4 +
> git.c                 |   2 +
> t/t1510-repo-setup.sh |   2 +-
> t/t5503-tagfollow.sh  |   8 +-
> trace.c               | 313 
> ++++++++++++++++++++++++++++++++++++++++++++------
> trace.h               |  90 +++++++++++++++
> 9 files changed, 387 insertions(+), 53 deletions(-)