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Re: [PATCHv2 1/8] run_processes_parallel: Add output to tracing messages

From
ESEric Sunshine <ericsunshine@gmail.com>
Date
Oct 30, 2015, 01:10 UTC
Message-ID
<CAPig+cToAFAPhhFhOd_MF+EUcvRUjWOooeZH4uDy3-d9GEq73g@mail.gmail.com>
In-Reply-To
<1446074504-6014-2-git-send-email-sbeller@google.com>
On Wed, Oct 28, 2015 at 7:21 PM, Stefan Beller <sbeller@google.com> wrote:
> run_processes_parallel: Add output to tracing messages

This doesn't really say much. I guess you mean that the intention is to delimit a section in which output from various tasks may be intermixed. Perhaps:

    run_processes_parallel: delimit intermixed task output
or something.
Show 18 quoted lines
> This commit serves 2 purposes. First this may help the user who
> tries to diagnose intermixed process calls. Second this may be used
> in a later patch for testing. As the output of a command should not
> change visibly except for going faster, grepping for the trace output
> seems like a viable testing strategy.
>
> Signed-off-by: Stefan Beller <sbeller@google.com>
> ---
> diff --git a/run-command.c b/run-command.c
> index 82cc238..49dec74 100644
> --- a/run-command.c
> +++ b/run-command.c
> @@ -959,6 +959,9 @@ static struct parallel_processes *pp_init(int n,
>                 n = online_cpus();
>
>         pp->max_processes = n;
> +
> +       trace_printf("run_processes_parallel: preparing to run up to %d children in parallel", n);
s/children/tasks/ maybe?
Minor: Perhaps drop "in parallel" since the parallelism is already
implied by the "run_processes_parallel" prefix.
Show 9 quoted lines
> +
>         pp->data = data;
>         if (!get_next_task)
>                 die("BUG: you need to specify a get_next_task function");
> @@ -988,6 +991,7 @@ static void pp_cleanup(struct parallel_processes *pp)
>  {
>         int i;
>
> +       trace_printf("run_processes_parallel: parallel processing done");
Minor: Likewise, perhaps just "done" rather than "parallel processing
done" since the "run_processes_parallel" prefix already implies
parallelism.
Show 5 quoted lines
>         for (i = 0; i < pp->max_processes; i++) {
>                 strbuf_release(&pp->children[i].err);
>                 child_process_deinit(&pp->children[i].process);
> --
> 2.5.0.281.g4ed9cdb
Previous: Stefan BellerNext: Stefan Beller
Message 22 of 48 in “Expose the submodule parallelism to the user”
  1. 0/9 Expose the submodule parallelism to the userStefan Beller, Oct 27, 2015
  2. 1/9 submodule-config: "goto" removal in parse_config()Stefan Beller, Oct 27, 2015
  3. Jonathan NiederOct 27, 2015
  4. Junio C HamanoOct 27, 2015
  5. 2/9 submodule config: keep update strategy aroundStefan Beller, Oct 27, 2015
  6. 3/9 run_processes_parallel: Add output to tracing messagesStefan Beller, Oct 27, 2015
  7. 4/9 git submodule update: have a dedicated helper for cloningStefan Beller, Oct 27, 2015
  8. 5/9 submodule update: expose parallelism to the userStefan Beller, Oct 27, 2015
  9. Junio C HamanoOct 27, 2015
  10. Stefan BellerOct 28, 2015
  11. Junio C HamanoOct 28, 2015
  12. 6/9 clone: allow an explicit argument for parallel submodule clonesStefan Beller, Oct 27, 2015
  13. Junio C HamanoOct 27, 2015
  14. Stefan BellerOct 28, 2015
  15. 7/9 submodule config: remove name_and_item_from_varStefan Beller, Oct 27, 2015
  16. 8/9 submodule-config: parse_configStefan Beller, Oct 27, 2015
  17. 9/9 fetching submodules: Respect `submodule.jobs` config optionStefan Beller, Oct 27, 2015
  18. Junio C HamanoOct 27, 2015
  19. Junio C HamanoOct 27, 2015
  20. 0/8 Expose the submodule parallelism to the userStefan Beller, Oct 28, 2015
  21. 1/8 run_processes_parallel: Add output to tracing messagesStefan Beller, Oct 28, 2015
  22. Eric SunshineOct 30, 2015
  23. Stefan BellerOct 30, 2015
  24. 2/8 submodule config: keep update strategy aroundStefan Beller, Oct 28, 2015
  25. Eric SunshineOct 30, 2015
  26. Stefan BellerOct 30, 2015
  27. Eric SunshineOct 30, 2015
  28. Stefan BellerOct 30, 2015
  29. 3/8 submodule config: remove name_and_item_from_varStefan Beller, Oct 28, 2015
  30. Eric SunshineOct 30, 2015
  31. Stefan BellerOct 30, 2015
  32. 4/8 submodule-config: parse_configStefan Beller, Oct 28, 2015
  33. Eric SunshineOct 30, 2015
  34. Stefan BellerOct 30, 2015
  35. 5/8 fetching submodules: Respect `submodule.jobs` config optionStefan Beller, Oct 28, 2015
  36. Eric SunshineOct 30, 2015
  37. 6/8 git submodule update: have a dedicated helper for cloningStefan Beller, Oct 28, 2015
  38. Junio C HamanoOct 29, 2015
  39. 7/8 submodule update: expose parallelism to the userStefan Beller, Oct 28, 2015
  40. 8/8 clone: allow an explicit argument for parallel submodule clonesStefan Beller, Oct 28, 2015
  41. Eric SunshineNov 1, 2015
  42. Ramsay JonesOct 29, 2015
  43. Stefan BellerOct 29, 2015
  44. Junio C HamanoOct 29, 2015
  45. Stefan BellerOct 29, 2015
  46. Ramsay JonesOct 29, 2015
  47. Stefan BellerNov 3, 2015
  48. Junio C HamanoOct 29, 2015

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