From: Jiri Olsa <jolsa@redhat.com>
To: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
Andi Kleen <ak@linux.intel.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Alexander Antonov <alexander.antonov@linux.intel.com>,
Alexei Budankov <abudankov@huawei.com>,
Riccardo Mancini <rickyman7@gmail.com>
Subject: Re: [PATCH v11 01/24] perf record: Introduce thread affinity and mmap masks
Date: Sun, 12 Sep 2021 22:45:30 +0200 [thread overview]
Message-ID: <YT5m6rXn1Lvvx4OT@krava> (raw)
In-Reply-To: <328c6ae8904139d1fba882a2daa75405a086e5cf.1629186429.git.alexey.v.bayduraev@linux.intel.com>
On Tue, Aug 17, 2021 at 11:23:04AM +0300, Alexey Bayduraev wrote:
SNIP
> +static int record__init_thread_default_masks(struct record *rec, struct perf_cpu_map *cpus)
> +{
> + int ret;
> +
> + ret = record__alloc_thread_masks(rec, 1, cpu__max_cpu());
> + if (ret)
> + return ret;
> +
> + record__mmap_cpu_mask_init(&rec->thread_masks->maps, cpus);
> +
> + rec->nr_threads = 1;
> +
> + return 0;
> +}
> +
> +static int record__init_thread_masks(struct record *rec)
> +{
> + struct perf_cpu_map *cpus = rec->evlist->core.cpus;
> +
> + return record__init_thread_default_masks(rec, cpus);
> +}
> +
> +static void record__fini_thread_masks(struct record *rec)
> +{
> + record__free_thread_masks(rec, rec->nr_threads);
> +
> + rec->nr_threads = 0;
hum, is this needed?
jirka
> +}
> +
> int cmd_record(int argc, const char **argv)
> {
> int err;
> @@ -2883,6 +3011,12 @@ int cmd_record(int argc, const char **argv)
> goto out;
> }
>
> + err = record__init_thread_masks(rec);
> + if (err) {
> + pr_err("record__init_thread_masks failed, error %d\n", err);
> + goto out;
> + }
> +
> if (rec->opts.nr_cblocks > nr_cblocks_max)
> rec->opts.nr_cblocks = nr_cblocks_max;
> pr_debug("nr_cblocks: %d\n", rec->opts.nr_cblocks);
> @@ -2901,6 +3035,7 @@ int cmd_record(int argc, const char **argv)
> symbol__exit();
> auxtrace_record__free(rec->itr);
> out_opts:
> + record__fini_thread_masks(rec);
> evlist__close_control(rec->opts.ctl_fd, rec->opts.ctl_fd_ack, &rec->opts.ctl_fd_close);
> return err;
> }
> --
> 2.19.0
>
next prev parent reply other threads:[~2021-09-12 20:45 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-17 8:23 [PATCH v11 00/24] Introduce threaded trace streaming for basic perf record operation Alexey Bayduraev
2021-08-17 8:23 ` [PATCH v11 01/24] perf record: Introduce thread affinity and mmap masks Alexey Bayduraev
2021-09-12 20:45 ` Jiri Olsa [this message]
2021-08-17 8:23 ` [PATCH v11 02/24] tools lib: Introduce fdarray duplicate function Alexey Bayduraev
2021-08-17 8:23 ` [PATCH v11 03/24] perf record: Introduce thread specific data array Alexey Bayduraev
2021-08-17 8:23 ` [PATCH v11 04/24] perf record: Introduce function to propagate control commands Alexey Bayduraev
2021-08-17 8:23 ` [PATCH v11 05/24] perf record: Introduce thread local variable Alexey Bayduraev
2021-08-17 8:23 ` [PATCH v11 06/24] perf record: Stop threads in the end of trace streaming Alexey Bayduraev
2021-08-17 8:23 ` [PATCH v11 07/24] perf record: Start threads in the beginning " Alexey Bayduraev
2021-09-12 20:46 ` Jiri Olsa
2021-08-17 8:23 ` [PATCH v11 08/24] perf record: Introduce data file at mmap buffer object Alexey Bayduraev
2021-09-12 20:46 ` Jiri Olsa
2021-08-17 8:23 ` [PATCH v11 09/24] perf record: Introduce bytes written stats to support --max-size option Alexey Bayduraev
2021-09-12 20:46 ` Jiri Olsa
2021-09-20 12:54 ` Bayduraev, Alexey V
2021-09-12 20:46 ` Jiri Olsa
2021-08-17 8:23 ` [PATCH v11 10/24] perf record: Introduce data transferred and compressed stats Alexey Bayduraev
2021-08-17 8:23 ` [PATCH v11 11/24] perf record: Init data file at mmap buffer object Alexey Bayduraev
2021-08-17 8:23 ` [PATCH v11 12/24] perf record: Introduce --threads command line option Alexey Bayduraev
2021-08-17 8:23 ` [PATCH v11 13/24] perf record: Extend " Alexey Bayduraev
2021-09-12 21:01 ` Jiri Olsa
2021-08-17 8:23 ` [PATCH v11 14/24] perf record: Implement compatibility checks Alexey Bayduraev
2021-08-17 8:23 ` [PATCH v11 15/24] perf report: Output non-zero offset for decompressed records Alexey Bayduraev
2021-08-17 8:23 ` [PATCH v11 16/24] perf report: Output data file name in raw trace dump Alexey Bayduraev
2021-08-17 8:23 ` [PATCH v11 17/24] perf session: Move reader structure to the top Alexey Bayduraev
2021-08-17 8:23 ` [PATCH v11 18/24] perf session: Introduce reader_state in reader object Alexey Bayduraev
2021-08-17 8:23 ` [PATCH v11 19/24] perf session: Introduce reader objects in session object Alexey Bayduraev
2021-09-12 20:44 ` Jiri Olsa
2021-08-17 8:23 ` [PATCH v11 20/24] perf session: Introduce decompressor into trace reader object Alexey Bayduraev
2021-08-17 8:23 ` [PATCH v11 21/24] perf session: Move init into reader__init function Alexey Bayduraev
2021-08-17 8:23 ` [PATCH v11 22/24] perf session: Move map/unmap into reader__mmap function Alexey Bayduraev
2021-08-17 8:23 ` [PATCH v11 23/24] perf session: Load single file for analysis Alexey Bayduraev
2021-08-17 8:23 ` [PATCH v11 24/24] perf session: Load data directory files " Alexey Bayduraev
2021-09-12 20:45 ` Jiri Olsa
2021-09-12 20:44 ` [PATCH v11 00/24] Introduce threaded trace streaming for basic perf record operation Jiri Olsa
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