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Date: Mon, 21 Oct 2013 15:13:24 -0300
From: Arnaldo Carvalho de Melo <acme@...stprotocols.net>
To: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Paul Mackerras <paulus@...ba.org>,
Ingo Molnar <mingo@...nel.org>,
Namhyung Kim <namhyung.kim@....com>,
LKML <linux-kernel@...r.kernel.org>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Frederic Weisbecker <fweisbec@...il.com>,
Jiri Olsa <jolsa@...hat.com>
Subject: Re: [PATCH 2/8] perf ui/progress: Add new helper functions for
progress bar
Em Fri, Oct 11, 2013 at 02:15:37PM +0900, Namhyung Kim escreveu:
> From: Namhyung Kim <namhyung.kim@....com>
>
> Introduce ui_progress_setup() and ui_progress__advance() to separate
> out from the session logic. It'll be used by other places in the
> upcoming patch.
Renaming this from 'perf_progress' to 'ui_progress', as the existing
method names implies, and also because this is not perf specific at all
:-)
- Arnaldo
> Cc: Jiri Olsa <jolsa@...hat.com>
> Cc: Frederic Weisbecker <fweisbec@...il.com>
> Signed-off-by: Namhyung Kim <namhyung@...nel.org>
> ---
> tools/perf/ui/progress.c | 18 ++++++++++++++++++
> tools/perf/ui/progress.h | 10 ++++++++++
> tools/perf/util/session.c | 24 ++++++++++++------------
> 3 files changed, 40 insertions(+), 12 deletions(-)
>
> diff --git a/tools/perf/ui/progress.c b/tools/perf/ui/progress.c
> index 3ec695607a4d..b5c22c6b1d93 100644
> --- a/tools/perf/ui/progress.c
> +++ b/tools/perf/ui/progress.c
> @@ -19,6 +19,24 @@ void ui_progress__update(u64 curr, u64 total, const char *title)
> return progress_fns->update(curr, total, title);
> }
>
> +void ui_progress__setup(struct perf_progress *p, u64 total)
> +{
> + p->curr = 0;
> + p->next = p->unit = total / 16;
> + p->total = total;
> +
> +}
> +
> +void ui_progress__advance(struct perf_progress *p, u64 adv, const char *title)
> +{
> + p->curr += adv;
> +
> + if (p->curr >= p->next) {
> + p->next += p->unit;
> + ui_progress__update(p->curr, p->total, title);
> + }
> +}
> +
> void ui_progress__finish(void)
> {
> if (progress_fns->finish)
> diff --git a/tools/perf/ui/progress.h b/tools/perf/ui/progress.h
> index 257cc224f9cf..3bd23e825953 100644
> --- a/tools/perf/ui/progress.h
> +++ b/tools/perf/ui/progress.h
> @@ -8,10 +8,20 @@ struct ui_progress {
> void (*finish)(void);
> };
>
> +struct perf_progress {
> + u64 curr;
> + u64 next;
> + u64 unit;
> + u64 total;
> +};
> +
> extern struct ui_progress *progress_fns;
>
> void ui_progress__init(void);
>
> +void ui_progress__setup(struct perf_progress *p, u64 total);
> +void ui_progress__advance(struct perf_progress *p, u64 adv, const char *title);
> +
> void ui_progress__update(u64 curr, u64 total, const char *title);
> void ui_progress__finish(void);
>
> diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
> index 6c1d4447c5b4..9f62be8bc167 100644
> --- a/tools/perf/util/session.c
> +++ b/tools/perf/util/session.c
> @@ -538,13 +538,16 @@ static int flush_sample_queue(struct perf_session *s,
> struct perf_sample sample;
> u64 limit = os->next_flush;
> u64 last_ts = os->last_sample ? os->last_sample->timestamp : 0ULL;
> - unsigned idx = 0, progress_next = os->nr_samples / 16;
> bool show_progress = limit == ULLONG_MAX;
> + struct perf_progress prog;
> int ret;
>
> if (!tool->ordered_samples || !limit)
> return 0;
>
> + if (show_progress)
> + ui_progress__setup(&prog, os->nr_samples);
> +
> list_for_each_entry_safe(iter, tmp, head, list) {
> if (iter->timestamp > limit)
> break;
> @@ -562,10 +565,10 @@ static int flush_sample_queue(struct perf_session *s,
> os->last_flush = iter->timestamp;
> list_del(&iter->list);
> list_add(&iter->list, &os->sample_cache);
> - if (show_progress && (++idx >= progress_next)) {
> - progress_next += os->nr_samples / 16;
> - ui_progress__update(idx, os->nr_samples,
> - "Processing time ordered events...");
> +
> + if (show_progress) {
> + ui_progress__advance(&prog, 1,
> + "Processing time ordered events...");
> }
> }
>
> @@ -1310,12 +1313,13 @@ int __perf_session__process_events(struct perf_session *session,
> u64 data_offset, u64 data_size,
> u64 file_size, struct perf_tool *tool)
> {
> - u64 head, page_offset, file_offset, file_pos, progress_next;
> + u64 head, page_offset, file_offset, file_pos;
> int err, mmap_prot, mmap_flags, map_idx = 0;
> size_t mmap_size;
> char *buf, *mmaps[NUM_MMAPS];
> union perf_event *event;
> uint32_t size;
> + struct perf_progress prog;
>
> perf_tool__fill_defaults(tool);
>
> @@ -1326,7 +1330,7 @@ int __perf_session__process_events(struct perf_session *session,
> if (data_offset + data_size < file_size)
> file_size = data_offset + data_size;
>
> - progress_next = file_size / 16;
> + ui_progress__setup(&prog, file_size);
>
> mmap_size = MMAP_SIZE;
> if (mmap_size > file_size)
> @@ -1381,11 +1385,7 @@ more:
> head += size;
> file_pos += size;
>
> - if (file_pos >= progress_next) {
> - progress_next += file_size / 16;
> - ui_progress__update(file_pos, file_size,
> - "Processing events...");
> - }
> + ui_progress__advance(&prog, size, "Processing events...");
>
> if (file_pos < file_size)
> goto more;
> --
> 1.7.11.7
--
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