From: Huisong Li <lihuisong@huawei.com>
To: <dev@dpdk.org>
Cc: <mb@smartsharesystems.com>, <thomas@monjalon.net>,
<ferruh.yigit@amd.com>, <anatoly.burakov@intel.com>,
<david.hunt@intel.com>, <sivaprasad.tummala@amd.com>,
<david.marchand@redhat.com>, <liuyonglong@huawei.com>,
<lihuisong@huawei.com>
Subject: [PATCH v3 2/2] examples/l3fwd-power: add PM QoS configuration
Date: Wed, 19 Jun 2024 14:31:44 +0800 [thread overview]
Message-ID: <20240619063144.20733-3-lihuisong@huawei.com> (raw)
In-Reply-To: <20240619063144.20733-1-lihuisong@huawei.com>
Add PM QoS configuration to declease the delay after sleep in case of
entering deeper idle state.
Signed-off-by: Huisong Li <lihuisong@huawei.com>
---
examples/l3fwd-power/main.c | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/examples/l3fwd-power/main.c b/examples/l3fwd-power/main.c
index fba11da7ca..d263cfef0a 100644
--- a/examples/l3fwd-power/main.c
+++ b/examples/l3fwd-power/main.c
@@ -47,6 +47,7 @@
#include <rte_telemetry.h>
#include <rte_power_pmd_mgmt.h>
#include <rte_power_uncore.h>
+#include <rte_power_qos.h>
#include "perf_core.h"
#include "main.h"
@@ -2259,6 +2260,25 @@ init_power_library(void)
return -1;
}
}
+
+ RTE_LCORE_FOREACH(lcore_id) {
+ if (rte_lcore_is_enabled(lcore_id) == 0)
+ continue;
+ /*
+ * Set the work CPU with strict latency limit to allow the
+ * process running on the CPU can only enter the shallowest
+ * idle state.
+ */
+ ret = rte_power_qos_set_cpu_resume_latency(lcore_id,
+ RTE_POWER_QOS_STRICT_LATENCY_VALUE);
+ if (ret < 0) {
+ RTE_LOG(ERR, L3FWD_POWER,
+ "Failed to set strict resume latency on CPU%u.\n",
+ lcore_id);
+ return ret;
+ }
+ }
+
return ret;
}
@@ -2298,6 +2318,15 @@ deinit_power_library(void)
}
}
}
+
+ RTE_LCORE_FOREACH(lcore_id) {
+ if (rte_lcore_is_enabled(lcore_id) == 0)
+ continue;
+ /* Restore the original value in kernel. */
+ rte_power_qos_set_cpu_resume_latency(lcore_id,
+ RTE_POWER_QOS_RESUME_LATENCY_NO_CONSTRAINT);
+ }
+
return ret;
}
--
2.22.0
next prev parent reply other threads:[~2024-06-19 6:40 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-20 10:55 [PATCH 0/2] introduce PM QoS interface Huisong Li
2024-03-20 10:55 ` [PATCH 1/2] power: " Huisong Li
2024-03-20 10:55 ` [PATCH 2/2] examples/l3fwd-power: add PM QoS request configuration Huisong Li
2024-03-20 14:05 ` [PATCH 0/2] introduce PM QoS interface Morten Brørup
2024-03-21 3:04 ` lihuisong (C)
2024-03-21 13:30 ` Morten Brørup
2024-03-22 8:54 ` lihuisong (C)
2024-03-22 12:35 ` Morten Brørup
2024-03-26 2:11 ` lihuisong (C)
2024-03-26 8:27 ` Morten Brørup
2024-03-26 12:15 ` lihuisong (C)
2024-03-26 12:46 ` Morten Brørup
2024-03-29 1:59 ` lihuisong (C)
2024-03-22 17:55 ` Tyler Retzlaff
2024-03-26 2:20 ` lihuisong (C)
2024-03-26 16:04 ` Tyler Retzlaff
2024-06-13 11:20 ` [PATCH v2 0/2] power: " Huisong Li
2024-06-13 11:20 ` [PATCH v2 1/2] power: introduce PM QoS API on CPU wide Huisong Li
2024-06-14 8:04 ` Morten Brørup
2024-06-18 12:19 ` lihuisong (C)
2024-06-18 12:53 ` Morten Brørup
2024-06-13 11:20 ` [PATCH v2 2/2] examples/l3fwd-power: add PM QoS configuration Huisong Li
2024-06-19 6:31 ` [PATCH v3 0/2] power: introduce PM QoS interface Huisong Li
2024-06-19 6:31 ` [PATCH v3 1/2] power: introduce PM QoS API on CPU wide Huisong Li
2024-06-19 14:56 ` Stephen Hemminger
2024-06-20 2:22 ` lihuisong (C)
2024-06-19 15:32 ` Thomas Monjalon
2024-06-20 2:32 ` lihuisong (C)
2024-06-19 6:31 ` Huisong Li [this message]
2024-06-19 14:54 ` [PATCH v3 2/2] examples/l3fwd-power: add PM QoS configuration Stephen Hemminger
2024-06-20 2:24 ` lihuisong (C)
2024-06-19 6:59 ` [PATCH v3 0/2] power: introduce PM QoS interface Morten Brørup
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