From: Riccardo Mancini <rickyman7@gmail.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Ian Rogers <irogers@google.com>,
Namhyung Kim <namhyung@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Mark Rutland <mark.rutland@arm.com>, Jiri Olsa <jolsa@redhat.com>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
Riccardo Mancini <rickyman7@gmail.com>
Subject: [RFC PATCH v1 07/37] perf workqueue: add support for setting affinities to workers
Date: Sat, 21 Aug 2021 11:19:13 +0200 [thread overview]
Message-ID: <5e564cefbf2612ff492a77f25ba4289ad3efcee0.1629490974.git.rickyman7@gmail.com> (raw)
In-Reply-To: <cover.1629490974.git.rickyman7@gmail.com>
This patch adds an interface to workqueue to set affinities to the
underlying threadpool threads.
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
---
tools/perf/util/workqueue/workqueue.c | 21 +++++++++++++++++++++
tools/perf/util/workqueue/workqueue.h | 6 ++++++
2 files changed, 27 insertions(+)
diff --git a/tools/perf/util/workqueue/workqueue.c b/tools/perf/util/workqueue/workqueue.c
index 7daac65abb5d57d1..61f1b6c41deba031 100644
--- a/tools/perf/util/workqueue/workqueue.c
+++ b/tools/perf/util/workqueue/workqueue.c
@@ -50,6 +50,7 @@ static const char * const workqueue_errno_str[] = {
"Error executing function in threadpool",
"Error stopping the threadpool",
"Error starting thread in the threadpool",
+ "Error setting affinity in threadpool",
"Error sending message to worker",
"Error receiving message from worker",
"Received unexpected message from worker",
@@ -758,6 +759,26 @@ int flush_workqueue(struct workqueue_struct *wq)
return err;
}
+/**
+ * workqueue_set_affinities - set affinities to all threads in @wq->pool
+ */
+int workqueue_set_affinities(struct workqueue_struct *wq,
+ struct mmap_cpu_mask *affinities)
+{
+ wq->pool_errno = threadpool__set_affinities(wq->pool, affinities);
+ return wq->pool_errno ? -WORKQUEUE_ERROR__POOLAFFINITY : 0;
+}
+
+/**
+ * workqueue_set_affinities - set affinity to thread @tidx in @wq->pool
+ */
+int workqueue_set_affinity(struct workqueue_struct *wq, int tidx,
+ struct mmap_cpu_mask *affinity)
+{
+ wq->pool_errno = threadpool__set_affinity(wq->pool, tidx, affinity);
+ return wq->pool_errno ? -WORKQUEUE_ERROR__POOLAFFINITY : 0;
+}
+
/**
* init_work - initialize the @work struct
*/
diff --git a/tools/perf/util/workqueue/workqueue.h b/tools/perf/util/workqueue/workqueue.h
index 7a0eda923df25d85..dc6baee138b22ab2 100644
--- a/tools/perf/util/workqueue/workqueue.h
+++ b/tools/perf/util/workqueue/workqueue.h
@@ -28,6 +28,11 @@ extern int queue_work_on_worker(int tidx, struct workqueue_struct *wq, struct wo
extern int flush_workqueue(struct workqueue_struct *wq);
+extern int workqueue_set_affinities(struct workqueue_struct *wq,
+ struct mmap_cpu_mask *affinities);
+extern int workqueue_set_affinity(struct workqueue_struct *wq, int tidx,
+ struct mmap_cpu_mask *affinity);
+
extern void init_work(struct work_struct *work);
/* parallel_for utility */
@@ -92,6 +97,7 @@ enum {
WORKQUEUE_ERROR__POOLEXE,
WORKQUEUE_ERROR__POOLSTOP,
WORKQUEUE_ERROR__POOLSTARTTHREAD,
+ WORKQUEUE_ERROR__POOLAFFINITY,
WORKQUEUE_ERROR__WRITEPIPE,
WORKQUEUE_ERROR__READPIPE,
WORKQUEUE_ERROR__INVALIDMSG,
--
2.31.1
next prev parent reply other threads:[~2021-08-21 9:20 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-21 9:19 [RFC PATCH v1 00/37] perf: use workqueue for evlist operations Riccardo Mancini
2021-08-21 9:19 ` [RFC PATCH v1 01/37] libperf cpumap: improve idx function Riccardo Mancini
2021-08-31 18:46 ` Arnaldo Carvalho de Melo
2021-10-08 14:29 ` Arnaldo Carvalho de Melo
2021-08-21 9:19 ` [RFC PATCH v1 02/37] libperf cpumap: improve max function Riccardo Mancini
2021-08-31 18:47 ` Arnaldo Carvalho de Melo
2021-08-31 19:16 ` Arnaldo Carvalho de Melo
2021-08-21 9:19 ` [RFC PATCH v1 03/37] perf evlist: replace evsel__cpu_iter* functions with evsel__find_cpu Riccardo Mancini
2021-10-08 14:38 ` [RFC PATCH v1 03/37] perf evlist: replace evsel__cpu_iter* functions with evsel__find_cpu() Arnaldo Carvalho de Melo
2021-12-11 0:20 ` [RFC PATCH v1 03/37] perf evlist: replace evsel__cpu_iter* functions with evsel__find_cpu Ian Rogers
2021-08-21 9:19 ` [RFC PATCH v1 04/37] perf util: add mmap_cpu_mask__duplicate function Riccardo Mancini
2021-08-31 19:21 ` Arnaldo Carvalho de Melo
2021-08-21 9:19 ` [RFC PATCH v1 05/37] perf util/mmap: add missing bitops.h header Riccardo Mancini
2021-08-31 19:22 ` Arnaldo Carvalho de Melo
2021-08-21 9:19 ` [RFC PATCH v1 06/37] perf workqueue: add affinities to threadpool Riccardo Mancini
2021-08-21 9:19 ` Riccardo Mancini [this message]
2021-08-21 9:19 ` [RFC PATCH v1 08/37] perf workqueue: add method to execute work on specific CPU Riccardo Mancini
2021-08-21 9:19 ` [RFC PATCH v1 09/37] perf python: add workqueue dependency Riccardo Mancini
2021-08-21 9:19 ` [RFC PATCH v1 10/37] perf evlist: add multithreading helper Riccardo Mancini
2021-08-21 9:19 ` [RFC PATCH v1 11/37] perf evlist: add multithreading to evlist__disable Riccardo Mancini
2021-08-21 9:19 ` [RFC PATCH v1 12/37] perf evlist: add multithreading to evlist__enable Riccardo Mancini
2021-08-21 9:19 ` [RFC PATCH v1 13/37] perf evlist: add multithreading to evlist__close Riccardo Mancini
2021-08-21 9:19 ` [RFC PATCH v1 14/37] perf evsel: remove retry_sample_id goto label Riccardo Mancini
2021-08-31 19:25 ` Arnaldo Carvalho de Melo
2021-08-21 9:19 ` [RFC PATCH v1 15/37] perf evsel: separate open preparation from open itself Riccardo Mancini
2021-08-31 19:27 ` Arnaldo Carvalho de Melo
2021-08-21 9:19 ` [RFC PATCH v1 16/37] perf evsel: save open flags in evsel Riccardo Mancini
2021-08-31 19:31 ` Arnaldo Carvalho de Melo
2021-08-21 9:19 ` [RFC PATCH v1 17/37] perf evsel: separate missing feature disabling from evsel__open_cpu Riccardo Mancini
2021-08-31 19:35 ` Arnaldo Carvalho de Melo
2021-08-21 9:19 ` [RFC PATCH v1 18/37] perf evsel: add evsel__prepare_open function Riccardo Mancini
2021-08-31 19:36 ` Arnaldo Carvalho de Melo
2021-08-21 9:19 ` [RFC PATCH v1 19/37] perf evsel: separate missing feature detection from evsel__open_cpu Riccardo Mancini
2021-08-31 19:39 ` Arnaldo Carvalho de Melo
2021-08-21 9:19 ` [RFC PATCH v1 20/37] perf evsel: separate rlimit increase " Riccardo Mancini
2021-08-31 19:41 ` Arnaldo Carvalho de Melo
2021-08-21 9:19 ` [RFC PATCH v1 21/37] perf evsel: move ignore_missing_thread to fallback code Riccardo Mancini
2021-08-31 19:44 ` Arnaldo Carvalho de Melo
2021-08-21 9:19 ` [RFC PATCH v1 22/37] perf evsel: move test_attr__open to success path in evsel__open_cpu Riccardo Mancini
2021-08-31 19:47 ` Arnaldo Carvalho de Melo
2021-08-21 9:19 ` [RFC PATCH v1 23/37] perf evsel: move bpf_counter__install_pe " Riccardo Mancini
2021-08-31 19:50 ` Arnaldo Carvalho de Melo
2021-08-21 9:19 ` [RFC PATCH v1 24/37] perf evsel: handle precise_ip fallback " Riccardo Mancini
2021-08-31 19:52 ` Arnaldo Carvalho de Melo
2021-08-21 9:19 ` [RFC PATCH v1 25/37] perf evsel: move event open in evsel__open_cpu to separate function Riccardo Mancini
2021-08-31 19:54 ` Arnaldo Carvalho de Melo
2021-09-03 21:52 ` Riccardo Mancini
2021-09-11 19:10 ` Arnaldo Carvalho de Melo
2021-08-21 9:19 ` [RFC PATCH v1 26/37] perf evsel: add evsel__open_per_cpu_no_fallback function Riccardo Mancini
2021-08-21 9:19 ` [RFC PATCH v1 27/37] perf evlist: add evlist__for_each_entry_from macro Riccardo Mancini
2021-08-31 20:06 ` Arnaldo Carvalho de Melo
2021-08-21 9:19 ` [RFC PATCH v1 28/37] perf evlist: add multithreading to evlist__open Riccardo Mancini
2021-08-21 9:19 ` [RFC PATCH v1 29/37] perf evlist: add custom fallback " Riccardo Mancini
2021-08-21 9:19 ` [RFC PATCH v1 30/37] perf record: use evlist__open_custom Riccardo Mancini
2021-08-21 9:19 ` [RFC PATCH v1 31/37] tools lib/subcmd: add OPT_UINTEGER_OPTARG option type Riccardo Mancini
2021-08-31 18:44 ` Arnaldo Carvalho de Melo
2021-08-21 9:19 ` [RFC PATCH v1 32/37] perf record: add --threads option Riccardo Mancini
2021-08-21 9:19 ` [RFC PATCH v1 33/37] perf record: pin threads to monitored cpus if enough threads available Riccardo Mancini
2021-08-21 9:19 ` [RFC PATCH v1 34/37] perf record: apply multithreading in init and fini phases Riccardo Mancini
2021-08-21 9:19 ` [RFC PATCH v1 35/37] perf test/evlist-open-close: add multithreading Riccardo Mancini
2021-08-21 9:19 ` [RFC PATCH v1 36/37] perf test/evlist-open-close: use inline func to convert timeval to usec Riccardo Mancini
2021-10-08 14:46 ` Arnaldo Carvalho de Melo
2021-08-21 9:19 ` [RFC PATCH v1 37/37] perf test/evlist-open-close: add detailed output mode Riccardo Mancini
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