[PATCH v3 0/1] fetch: add trace2 instrumentation

["erik chen via GitGitGadget" <gitgitgadget@gmail.com>]

Add trace2 regions to fetch-pack.c to better track time spent in the various
phases of a fetch:

* matching common remote and local refs
* marking local refs as complete (part of the matching process)

Both of these stages can be slow for repositories with many refs.

Signed-off-by: Erik Chen erikchen@chromium.org [erikchen@chromium.org]

Erik Chen (1):
  fetch: add trace2 instrumentation

 fetch-pack.c | 8 ++++++++
 1 file changed, 8 insertions(+)


base-commit: 566a1439f6f56c2171b8853ddbca0ad3f5098770
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-451%2Ferikchen%2Ftest12-v3
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-451/erikchen/test12-v3
Pull-Request: https://github.com/gitgitgadget/git/pull/451

Range-diff vs v2:

 1:  4fdbb9f504 ! 1:  364c526a5d fetch: add trace2 instrumentation
     @@ -16,10 +16,7 @@
       --- a/fetch-pack.c
       +++ b/fetch-pack.c
      @@
     - 	struct ref *ref;
     - 	int old_save_commit_buffer = save_commit_buffer;
     - 	timestamp_t cutoff = 0;
     --
     + 
       	save_commit_buffer = 0;
       
      +	trace2_region_enter("fetch-pack", "mark_complete_and_common_ref", NULL);
 2:  606756d7db < -:  ---------- add whitespace

-- 
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