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examples/l3fwd-power: add baseline PMD management mode

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The PMD Power Management scheme currently has 3 modes,
scale, monitor and pause. However, it would be nice to
have a baseline mode for easy comparison of power savings
with and without these modes.

This patch adds a 'baseline' mode were the PMD power
management is not enabled. Use --pmd-mgmt=baseline.

Signed-off-by: David Hunt <david.hunt@intel.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
This commit is contained in:
David Hunt 2021-06-22 15:07:50 +01:00 committed by Thomas Monjalon
parent f0b97fc4fe
commit a9ea60702e
1 changed files with 11 additions and 2 deletions
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13
examples/l3fwd-power/main.c
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@ -207,6 +207,7 @@ enum appmode {
enum appmode app_mode;
static enum rte_power_pmd_mgmt_type pmgmt_type;
bool baseline_enabled;
enum freq_scale_hint_t
{
@ -1617,7 +1618,7 @@ print_usage(const char *prgname)
" empty polls, full polls, and core busyness to telemetry\n"
" --interrupt-only: enable interrupt-only mode\n"
" --pmd-mgmt MODE: enable PMD power management mode. "
"Currently supported modes: monitor, pause, scale\n",
"Currently supported modes: baseline, monitor, pause, scale\n",
prgname);
}
@ -1714,6 +1715,7 @@ parse_pmd_mgmt_config(const char *name)
#define PMD_MGMT_MONITOR "monitor"
#define PMD_MGMT_PAUSE "pause"
#define PMD_MGMT_SCALE "scale"
#define PMD_MGMT_BASELINE "baseline"
if (strncmp(PMD_MGMT_MONITOR, name, sizeof(PMD_MGMT_MONITOR)) == 0) {
pmgmt_type = RTE_POWER_MGMT_TYPE_MONITOR;
@ -1729,6 +1731,10 @@ parse_pmd_mgmt_config(const char *name)
pmgmt_type = RTE_POWER_MGMT_TYPE_SCALE;
return 0;
}
if (strncmp(PMD_MGMT_BASELINE, name, sizeof(PMD_MGMT_BASELINE)) == 0) {
baseline_enabled = true;
return 0;
}
/* unknown PMD power management mode */
return -1;
}
@ -2528,6 +2534,9 @@ main(int argc, char **argv)
/* init RTE timer library to be used late */
rte_timer_subsystem_init();
/* if we're running pmd-mgmt mode, don't default to baseline mode */
baseline_enabled = false;
/* parse application arguments (after the EAL ones) */
ret = parse_args(argc, argv);
if (ret < 0)
@ -2761,7 +2770,7 @@ main(int argc, char **argv)
"Fail to add ptype cb\n");
}
if (app_mode == APP_MODE_PMD_MGMT) {
if (app_mode == APP_MODE_PMD_MGMT && !baseline_enabled) {
ret = rte_power_ethdev_pmgmt_queue_enable(
lcore_id, portid, queueid,
pmgmt_type);