From: Namhyung Kim <namhyung@kernel.org>
To: Jiri Olsa <jolsa@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
lkml <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@kernel.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Andi Kleen <andi@firstfloor.org>,
Alexey Budankov <alexey.budankov@linux.intel.com>,
kernel-team@lge.com
Subject: Re: [PATCH 37/48] perf record: Introduce struct record_thread
Date: Mon, 17 Sep 2018 20:26:15 +0900 [thread overview]
Message-ID: <20180917112615.GB18395@sejong> (raw)
In-Reply-To: <20180913125450.21342-38-jolsa@kernel.org>
Hi Jiri,
On Thu, Sep 13, 2018 at 02:54:39PM +0200, Jiri Olsa wrote:
> Adding struct record_thread to carry the single thread's maps.
>
> Link: http://lkml.kernel.org/n/tip-dsyi97xdc7ullvsisqmha0ca@git.kernel.org
> Signed-off-by: Jiri Olsa <jolsa@kernel.org>
> ---
> tools/perf/builtin-record.c | 179 ++++++++++++++++++++++++++++++++++++
> 1 file changed, 179 insertions(+)
>
> diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
> index 1b01cb4d06b8..5c6b56f164a9 100644
> --- a/tools/perf/builtin-record.c
> +++ b/tools/perf/builtin-record.c
> @@ -65,6 +65,15 @@ struct switch_output {
> bool set;
> };
>
> +struct record_thread {
> + struct perf_mmap **mmap;
> + int mmap_nr;
> + struct perf_mmap **ovw_mmap;
> + int ovw_mmap_nr;
> + struct fdarray pollfd;
> + struct record *rec;
> +};
> +
> struct record {
> struct perf_tool tool;
> struct record_opts opts;
> @@ -83,6 +92,8 @@ struct record {
> bool timestamp_boundary;
> struct switch_output switch_output;
> unsigned long long samples;
> + struct record_thread *threads;
> + int threads_cnt;
> };
>
> static volatile int auxtrace_record__snapshot_started;
> @@ -967,6 +978,166 @@ static int record__synthesize(struct record *rec, bool tail)
> return err;
> }
>
> +static void
> +record_thread__clean(struct record_thread *th)
> +{
> + free(th->mmap);
> + free(th->ovw_mmap);
> +}
> +
> +static void
> +record__threads_clean(struct record *rec)
> +{
> + struct record_thread *threads = rec->threads;
> + int i;
> +
> + if (threads) {
> + for (i = 0; i < rec->threads_cnt; i++)
> + record_thread__clean(threads + i);
> + }
> +}
> +
> +static void record_thread__init(struct record_thread *th, struct record *rec)
> +{
> + memset(th, 0, sizeof(*th));
> + fdarray__init(&th->pollfd, 64);
> + th->rec = rec;
> +}
> +
> +static int
> +record_thread__mmap(struct record_thread *th, int nr, int nr_ovw)
> +{
> + struct perf_mmap **mmap;
> +
> + mmap = zalloc(sizeof(*mmap) * nr);
> + if (!mmap)
> + return -ENOMEM;
> +
> + th->mmap = mmap;
> + th->mmap_nr = nr;
> +
> + if (nr_ovw) {
> + mmap = zalloc(sizeof(*mmap) * nr_ovw);
> + if (!mmap)
> + return -ENOMEM;
> +
> + th->ovw_mmap = mmap;
> + th->ovw_mmap_nr = nr;
s/nr;/nr_ovw;/ ?
> + }
> +
> + return 0;
> +}
> +
> +static int
> +record__threads_assign(struct record *rec)
> +{
> + struct record_thread *threads = rec->threads;
> + struct record_thread *thread0 = threads;
> + struct perf_evlist *evlist = rec->evlist;
> + int i, j, nr, nr0, nr_ovw, nr_trk;
> + int ret = -ENOMEM;
> +
> + nr = evlist->mmap ? evlist->nr_mmaps : 0;
> + nr_trk = evlist->track_mmap ? evlist->nr_mmaps : 0;
> + nr_ovw = evlist->overwrite_mmap ? evlist->nr_mmaps : 0;
> +
> + nr0 = nr_trk;
> + nr0 += nr;
> +
> + if (record_thread__mmap(thread0, nr0, nr_ovw))
> + goto out_error;
> +
> + for (i = 0; i < nr_ovw; i++)
> + thread0->ovw_mmap[i] = &evlist->overwrite_mmap[i];
> +
> + for (i = 0; i < nr_trk; i++)
> + thread0->mmap[i] = &evlist->track_mmap[i];
> +
> + for (j = 0; i < nr0 && j < nr; i++, j++)
> + thread0->mmap[i] = &evlist->mmap[j];
I'm not sure it'll work with the overwrite mmap well..
Thanks,
Namhyung
> +
> + ret = 0;
> +
> +out_error:
> + return ret;
> +}
next prev parent reply other threads:[~2018-09-17 11:26 UTC|newest]
Thread overview: 101+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-13 12:54 [RFCv2 00/48] perf tools: Add threads to record command Jiri Olsa
2018-09-13 12:54 ` [PATCH 01/48] perf tools: Remove perf_tool from event_op2 Jiri Olsa
2018-09-25 9:31 ` [tip:perf/core] " tip-bot for Jiri Olsa
2018-09-13 12:54 ` [PATCH 02/48] perf tools: Remove perf_tool from event_op3 Jiri Olsa
2018-09-18 20:56 ` Arnaldo Carvalho de Melo
2018-09-23 19:45 ` Jiri Olsa
2018-09-25 9:31 ` [tip:perf/core] " tip-bot for Jiri Olsa
2018-09-13 12:54 ` [PATCH 03/48] perf tools: Pass struct perf_mmap into auxtrace_mmap__read* functions Jiri Olsa
2018-09-25 9:32 ` [tip:perf/core] perf auxtrace: Pass struct perf_mmap into mmap__read* functions tip-bot for Jiri Olsa
2018-09-13 12:54 ` [PATCH 04/48] perf tools: Add struct perf_mmap arg into record__write Jiri Olsa
2018-09-25 9:32 ` [tip:perf/core] perf tools: Add 'struct perf_mmap' arg to record__write() tip-bot for Jiri Olsa
2018-09-13 12:54 ` [PATCH 05/48] perf tools: Use a software dummy event to track task/mmap events Jiri Olsa
2018-09-13 12:54 ` [PATCH 06/48] perf tools: Create separate mmap for dummy tracking event Jiri Olsa
2018-09-13 12:54 ` [PATCH 07/48] perf tools: Extend perf_evlist__mmap_ex() to use track mmap Jiri Olsa
2018-09-13 12:54 ` [PATCH 08/48] perf report: Skip dummy tracking event Jiri Olsa
2018-09-13 12:54 ` [PATCH 09/48] perf tools: Make copyfile_offset global Jiri Olsa
2018-09-18 20:54 ` Arnaldo Carvalho de Melo
2018-09-23 19:44 ` Jiri Olsa
2018-09-25 9:33 ` [tip:perf/core] perf util: Make copyfile_offset() global tip-bot for Jiri Olsa
2018-09-13 12:54 ` [PATCH 10/48] perf tools: Add HEADER_DATA_INDEX feature Jiri Olsa
2018-09-13 12:54 ` [PATCH 11/48] perf tools: Handle indexed data file properly Jiri Olsa
2018-09-13 12:54 ` [PATCH 12/48] perf tools: Add perf_data__create_index function Jiri Olsa
2018-09-13 12:54 ` [PATCH 13/48] perf record: Add --index option for building index table Jiri Olsa
2018-09-13 12:54 ` [PATCH 14/48] perf tools: Introduce thread__comm(_str)_by_time() helpers Jiri Olsa
2018-09-13 12:54 ` [PATCH 15/48] perf tools: Add a test case for thread comm handling Jiri Olsa
2018-09-13 12:54 ` [PATCH 16/48] perf tools: Use thread__comm_by_time() when adding hist entries Jiri Olsa
2018-09-13 12:54 ` [PATCH 17/48] perf tools: Convert dead thread list into rbtree Jiri Olsa
2018-09-13 12:54 ` [PATCH 18/48] perf tools: Introduce machine__find*_thread_by_time() Jiri Olsa
2018-09-13 12:54 ` [PATCH 19/48] perf tools: Add thread::exited flag Jiri Olsa
2018-09-13 12:54 ` [PATCH 20/48] perf tools: Add a test case for timed thread handling Jiri Olsa
2018-09-13 12:54 ` [PATCH 21/48] perf tools: Maintain map groups list in a leader thread Jiri Olsa
2018-09-13 12:54 ` [PATCH 22/48] perf tools: Introduce thread__find_symbol_by_time() and friends Jiri Olsa
2018-09-13 12:54 ` [PATCH 23/48] perf callchain: Use thread__find_addr_location_by_time() " Jiri Olsa
2018-09-13 12:54 ` [PATCH 24/48] perf tools: Add a test case for timed map groups handling Jiri Olsa
2018-09-13 12:54 ` [PATCH 25/48] perf tools: Save timestamp of a map creation Jiri Olsa
2018-09-13 12:54 ` [PATCH 26/48] perf tools: Introduce map_groups__{insert,find}_by_time() Jiri Olsa
2018-09-13 12:54 ` [PATCH 27/48] perf tools: Use map_groups__find_addr_by_time() Jiri Olsa
2018-09-13 12:54 ` [PATCH 28/48] perf tools: Add testcase for managing maps with time Jiri Olsa
2018-09-13 12:54 ` [PATCH 29/48] perf callchain: Maintain libunwind's address space in map_groups Jiri Olsa
2018-09-14 18:15 ` Arnaldo Carvalho de Melo
2018-09-14 19:00 ` Jiri Olsa
2018-09-13 12:54 ` [PATCH 30/48] perf tools: Rename perf_evlist__munmap_filtered to perf_mmap__put_filtered Jiri Olsa
2018-09-13 12:54 ` [PATCH 31/48] tools lib fd array: Introduce fdarray__add_clone function Jiri Olsa
2018-09-13 12:54 ` [PATCH 32/48] tools lib subcmd: Add OPT_INTEGER_OPTARG|_SET options Jiri Olsa
2018-09-13 12:54 ` [PATCH 33/48] perf tools: Move __perf_session__process_events args into struct Jiri Olsa
2018-09-13 12:54 ` [PATCH 34/48] perf ui progress: Fix index progress display Jiri Olsa
2018-09-13 12:54 ` [PATCH 35/48] perf tools: Add threads debug variable Jiri Olsa
2018-09-13 12:54 ` [PATCH 36/48] perf tools: Add perf_mmap__read_tail function Jiri Olsa
2018-09-13 12:54 ` [PATCH 37/48] perf record: Introduce struct record_thread Jiri Olsa
2018-09-17 11:26 ` Namhyung Kim [this message]
2018-09-23 19:31 ` Jiri Olsa
2018-09-13 12:54 ` [PATCH 38/48] perf record: Read record thread's mmaps Jiri Olsa
2018-09-17 11:28 ` Namhyung Kim
2018-09-23 19:35 ` Jiri Olsa
2018-09-13 12:54 ` [PATCH 39/48] perf record: Move waking into struct record Jiri Olsa
2018-09-17 11:31 ` Namhyung Kim
2018-09-23 19:36 ` Jiri Olsa
2018-09-13 12:54 ` [PATCH 40/48] perf record: Move samples into struct record_thread Jiri Olsa
2018-09-13 12:54 ` [PATCH 41/48] perf record: Move bytes_written " Jiri Olsa
2018-09-13 12:54 ` [PATCH 42/48] perf record: Add record_thread start/stop/process functions Jiri Olsa
2018-09-13 12:54 ` [PATCH 43/48] perf record: Wait for all threads being started Jiri Olsa
2018-09-13 12:54 ` [PATCH 44/48] perf record: Add --threads option Jiri Olsa
2018-09-17 11:37 ` Namhyung Kim
2018-09-13 12:54 ` [PATCH 45/48] perf record: Add --thread-stats option support Jiri Olsa
2018-09-13 12:54 ` [PATCH 46/48] perf record: Add maps to --thread-stats output Jiri Olsa
2018-09-13 12:54 ` [PATCH 47/48] perf record: Spread maps for --threads option Jiri Olsa
2018-09-17 11:40 ` Namhyung Kim
2018-09-23 19:44 ` Jiri Olsa
2018-09-24 14:22 ` Arnaldo Carvalho de Melo
2018-09-26 6:23 ` Jiri Olsa
2018-09-27 16:01 ` Jiri Olsa
2018-09-28 6:25 ` Namhyung Kim
2018-09-13 12:54 ` [PATCH 48/48] perf record: Spread maps for --threads=X option Jiri Olsa
2018-09-13 16:10 ` [RFCv2 00/48] perf tools: Add threads to record command Alexey Budankov
2018-09-14 2:29 ` Namhyung Kim
2018-09-14 7:15 ` Alexey Budankov
2018-09-14 8:23 ` Jiri Olsa
2018-09-14 9:40 ` Ingo Molnar
2018-09-14 11:15 ` Peter Zijlstra
2018-09-14 11:47 ` Jiri Olsa
2018-09-14 12:01 ` Peter Zijlstra
2018-09-14 12:13 ` Ingo Molnar
2018-09-14 12:19 ` Jiri Olsa
2018-09-14 12:45 ` Ingo Molnar
2018-09-14 9:33 ` Ingo Molnar
2018-09-14 8:26 ` Jiri Olsa
2018-09-14 8:28 ` Jiri Olsa
2018-09-14 9:37 ` Alexey Budankov
2018-09-21 6:13 ` Alexey Budankov
2018-09-21 12:15 ` Alexey Budankov
2018-09-24 19:23 ` Alexey Budankov
2018-10-02 21:41 ` Jiri Olsa
2018-10-03 7:01 ` Alexey Budankov
2018-09-23 19:30 ` Jiri Olsa
2018-09-24 7:02 ` Alexey Budankov
2018-09-24 13:09 ` Alexey Budankov
2018-09-24 14:29 ` Jiri Olsa
2018-09-24 18:32 ` Alexey Budankov
2018-09-24 19:12 ` Alexey Budankov
2018-10-05 6:14 ` Namhyung Kim
2018-09-14 17:02 ` Andi Kleen
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