This patch adds idle cycle (or headroom) rate display CLI command to
packet framework. The CLI command format is shown as following:
t <thread_id> headroom
Signed-off-by: Fan Zhang <roy.fan.zhang at intel.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu at intel.com>
---
examples/ip_pipeline/thread_fe.c | 114 +++++++++++++++++++++++++++++++++++++++
examples/ip_pipeline/thread_fe.h | 6 +++
2 files changed, 120 insertions(+)
diff --git a/examples/ip_pipeline/thread_fe.c b/examples/ip_pipeline/thread_fe.c
index 95f0107..e939237 100644
--- a/examples/ip_pipeline/thread_fe.c
+++ b/examples/ip_pipeline/thread_fe.c
@@ -170,6 +170,54 @@ app_pipeline_disable(struct app_params *app,
return 0;
}
+int
+app_thread_headroom(struct app_params *app,
+ uint32_t socket_id,
+ uint32_t core_id,
+ uint32_t hyper_th_id)
+{
+ struct thread_show_headroom_msg_req *req;
+ struct thread_show_headroom_msg_rsp *rsp;
+ int thread_id;
+ int status;
+
+ if (app == NULL)
+ return -1;
+
+ thread_id = cpu_core_map_get_lcore_id(app->core_map,
+ socket_id,
+ core_id,
+ hyper_th_id);
+
+ if ((thread_id < 0) ||
+ ((app->core_mask & (1LLU << thread_id)) == 0))
+ return -1;
+
+ req = app_msg_alloc(app);
+ if (req == NULL)
+ return -1;
+
+ req->type = THREAD_MSG_REQ_HEADROOM;
+
+ rsp = thread_msg_send_recv(app,
+ socket_id, core_id, hyper_th_id, req, MSG_TIMEOUT_DEFAULT);
+
+ if (rsp == NULL)
+ return -1;
+
+ status = rsp->status;
+
+ if (status == 0) {
+ printf("Core %u: idle CPU rate %f%%\n",
+ core_id, rsp->headroom * 100);
+ } else {
+ app_msg_free(app, rsp);
+ return -1;
+ }
+
+ return 0;
+}
+
/*
* pipeline enable
*/
@@ -318,9 +366,75 @@ cmdline_parse_inst_t cmd_pipeline_disable = {
},
};
+
+/*
+ * thread headroom
+ */
+
+struct cmd_thread_headroom_result {
+ cmdline_fixed_string_t t_string;
+ cmdline_fixed_string_t t_id_string;
+ cmdline_fixed_string_t headroom_string;
+};
+
+static void
+cmd_thread_headroom_parsed(
+ void *parsed_result,
+ __rte_unused struct cmdline *cl,
+ void *data)
+{
+ struct cmd_thread_headroom_result *params = parsed_result;
+ struct app_params *app = data;
+ int status;
+ uint32_t core_id, socket_id, hyper_th_id;
+
+ if (parse_pipeline_core(&socket_id,
+ &core_id,
+ &hyper_th_id,
+ params->t_id_string) != 0) {
+ printf("Command failed\n");
+ return;
+ }
+
+ status = app_thread_headroom(app,
+ socket_id,
+ core_id,
+ hyper_th_id);
+
+ if (status != 0)
+ printf("Command failed\n");
+}
+
+cmdline_parse_token_string_t cmd_thread_headroom_t_string =
+ TOKEN_STRING_INITIALIZER(struct cmd_thread_headroom_result,
+ t_string, "t");
+
+cmdline_parse_token_string_t cmd_thread_headroom_t_id_string =
+ TOKEN_STRING_INITIALIZER(struct cmd_thread_headroom_result,
+ t_id_string,
+ NULL);
+
+cmdline_parse_token_string_t cmd_thread_headroom_headroom_string =
+ TOKEN_STRING_INITIALIZER(struct cmd_thread_headroom_result,
+ headroom_string, "headroom");
+
+cmdline_parse_inst_t cmd_thread_headroom = {
+ .f = cmd_thread_headroom_parsed,
+ .data = NULL,
+ .help_str = "Display thread headroom",
+ .tokens = {
+ (void *)&cmd_thread_headroom_t_string,
+ (void *)&cmd_thread_headroom_t_id_string,
+ (void *)&cmd_thread_headroom_headroom_string,
+ NULL,
+ },
+};
+
+
static cmdline_parse_ctx_t thread_cmds[] = {
(cmdline_parse_inst_t *) &cmd_pipeline_enable,
(cmdline_parse_inst_t *) &cmd_pipeline_disable,
+ (cmdline_parse_inst_t *) &cmd_thread_headroom,
NULL,
};
diff --git a/examples/ip_pipeline/thread_fe.h b/examples/ip_pipeline/thread_fe.h
index 52352c1..2fd4ee8 100644
--- a/examples/ip_pipeline/thread_fe.h
+++ b/examples/ip_pipeline/thread_fe.h
@@ -92,4 +92,10 @@ app_pipeline_disable(struct app_params *app,
uint32_t hyper_th_id,
uint32_t pipeline_id);
+int
+app_thread_headroom(struct app_params *app,
+ uint32_t core_id,
+ uint32_t socket_id,
+ uint32_t hyper_th_id);
+
#endif /* THREAD_FE_H_ */
--
2.5.0
