| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Mon, 13 Jun 2022 17:45:59 +0800
From: Yang Jihong <yangjihong1@...wei.com>
To: <peterz@...radead.org>, <mingo@...hat.com>, <acme@...nel.org>,
<mark.rutland@....com>, <alexander.shishkin@...ux.intel.com>,
<jolsa@...nel.org>, <namhyung@...nel.org>,
<linux-kernel@...r.kernel.org>, <linux-perf-users@...r.kernel.org>
CC: <yangjihong1@...wei.com>
Subject: [RFC 07/13] perf kwork: Add irq report support
Implements irq kwork report function.
test case:
# perf kwork rep
Kwork Name | Cpu | Total Runtime | Frequency | Max runtime | Max runtime start | Max runtime end |
---------------------------------------------------------------------------------------------------------------------------
virtio0-requests:25 | 0000 | 429.202 ms | 7155 | 0.937 ms | 1906657.581035 s | 1906657.581973 s |
eth0:10 | 0002 | 0.136 ms | 5 | 0.045 ms | 1906656.302257 s | 1906656.302301 s |
---------------------------------------------------------------------------------------------------------------------------
#
# perf kwork rep -C 2
Kwork Name | Cpu | Total Runtime | Frequency | Max runtime | Max runtime start | Max runtime end |
---------------------------------------------------------------------------------------------------------------------------
eth0:10 | 0002 | 0.136 ms | 5 | 0.045 ms | 1906656.302257 s | 1906656.302301 s |
---------------------------------------------------------------------------------------------------------------------------
# perf kwork rep -C 1,2
Kwork Name | Cpu | Total Runtime | Frequency | Max runtime | Max runtime start | Max runtime end |
---------------------------------------------------------------------------------------------------------------------------
eth0:10 | 0002 | 0.136 ms | 5 | 0.045 ms | 1906656.302257 s | 1906656.302301 s |
---------------------------------------------------------------------------------------------------------------------------
# perf kwork rep -n eth0
Kwork Name | Cpu | Total Runtime | Frequency | Max runtime | Max runtime start | Max runtime end |
---------------------------------------------------------------------------------------------------------------------------
eth0:10 | 0002 | 0.136 ms | 5 | 0.045 ms | 1906656.302257 s | 1906656.302301 s |
---------------------------------------------------------------------------------------------------------------------------
# perf kwork rep -S
Kwork Name | Cpu | Total Runtime | Frequency | Max runtime | Max runtime start | Max runtime end |
---------------------------------------------------------------------------------------------------------------------------
virtio0-requests:25 | 0000 | 429.202 ms | 7155 | 0.937 ms | 1906657.581035 s | 1906657.581973 s |
eth0:10 | 0002 | 0.136 ms | 5 | 0.045 ms | 1906656.302257 s | 1906656.302301 s |
---------------------------------------------------------------------------------------------------------------------------
Total count : 7160
Total runtime (msec) : 429.338 (0.142% load average)
Total time span (msec) : 3013.347
---------------------------------------------------------------------------------------------------------------------------
# perf kwork rep --time 1906657,
Kwork Name | Cpu | Total Runtime | Frequency | Max runtime | Max runtime start | Max runtime end |
---------------------------------------------------------------------------------------------------------------------------
virtio0-requests:25 | 0000 | 228.631 ms | 3855 | 0.937 ms | 1906657.581035 s | 1906657.581973 s |
eth0:10 | 0002 | 0.092 ms | 4 | 0.034 ms | 1906658.614010 s | 1906658.614043 s |
---------------------------------------------------------------------------------------------------------------------------
Signed-off-by: Yang Jihong <yangjihong1@...wei.com>
---
tools/perf/builtin-kwork.c | 62 ++++++++++++++++++++++++++++++++++++--
1 file changed, 60 insertions(+), 2 deletions(-)
diff --git a/tools/perf/builtin-kwork.c b/tools/perf/builtin-kwork.c
index ec199942150f..5741a8ac3e41 100644
--- a/tools/perf/builtin-kwork.c
+++ b/tools/perf/builtin-kwork.c
@@ -639,15 +639,73 @@ static int report_exit_event(struct perf_kwork *kwork,
return 0;
}
+static struct kwork_class kwork_irq;
+static int process_irq_handler_entry_event(struct perf_tool *tool,
+ struct evsel *evsel,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ struct perf_kwork *kwork = container_of(tool, struct perf_kwork, tool);
+
+ if (kwork->tp_handler->entry_event)
+ return kwork->tp_handler->entry_event(kwork, &kwork_irq,
+ evsel, sample, machine);
+ return 0;
+}
+
+static int process_irq_handler_exit_event(struct perf_tool *tool,
+ struct evsel *evsel,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ struct perf_kwork *kwork = container_of(tool, struct perf_kwork, tool);
+
+ if (kwork->tp_handler->exit_event)
+ return kwork->tp_handler->exit_event(kwork, &kwork_irq,
+ evsel, sample, machine);
+ return 0;
+}
+
const struct evsel_str_handler irq_tp_handlers[] = {
- { "irq:irq_handler_entry", NULL, },
- { "irq:irq_handler_exit", NULL, },
+ { "irq:irq_handler_entry", process_irq_handler_entry_event, },
+ { "irq:irq_handler_exit", process_irq_handler_exit_event, },
};
+static int irq_class_init(struct kwork_class *class,
+ struct perf_session *session)
+{
+ if (perf_session__set_tracepoints_handlers(session, irq_tp_handlers)) {
+ pr_debug("Failed to set irq tracepoints handlers\n");
+ return -1;
+ }
+
+ class->cluster_root = RB_ROOT_CACHED;
+ return 0;
+}
+
+static void irq_cluster_init(struct kwork_class *class,
+ struct kwork_cluster *cluster,
+ struct evsel *evsel,
+ struct perf_sample *sample)
+{
+ cluster->class = class;
+ cluster->cpu = sample->cpu;
+ cluster->id = evsel__intval(evsel, sample, "irq");
+ cluster->name = evsel__strval(evsel, sample, "name");
+}
+
+static void irq_cluster_name(struct kwork_cluster *cluster, char *buf, int len)
+{
+ snprintf(buf, len, "%s:%" PRIu64 "", cluster->name, cluster->id);
+}
+
static struct kwork_class kwork_irq = {
.name = "irq",
.nr_tracepoints = 2,
.tp_handlers = irq_tp_handlers,
+ .class_init = irq_class_init,
+ .cluster_init = irq_cluster_init,
+ .cluster_name = irq_cluster_name,
};
const struct evsel_str_handler softirq_tp_handlers[] = {
--
2.30.GIT
Powered by blists - more mailing lists