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Index: dpdk/config/common_base
===================================================================
--- dpdk.orig/config/common_base
+++ dpdk/config/common_base
@@ -88,7 +88,7 @@ CONFIG_RTE_MAX_NUMA_NODES=8
CONFIG_RTE_MAX_MEMSEG=256
CONFIG_RTE_MAX_MEMZONE=2560
CONFIG_RTE_MAX_TAILQ=32
-CONFIG_RTE_LOG_LEVEL=8
+CONFIG_RTE_LOG_LEVEL=RTE_LOG_INFO
CONFIG_RTE_LOG_HISTORY=256
CONFIG_RTE_LIBEAL_USE_HPET=n
CONFIG_RTE_EAL_ALLOW_INV_SOCKET_ID=n
Index: dpdk/doc/guides/faq/faq.rst
===================================================================
--- dpdk.orig/doc/guides/faq/faq.rst
+++ dpdk/doc/guides/faq/faq.rst
@@ -88,9 +88,7 @@ the wrong socket, the application simply
On application startup, there is a lot of EAL information printed. Is there any way to reduce this?
---------------------------------------------------------------------------------------------------
-Yes, each EAL has a configuration file that is located in the /config directory. Within each configuration file, you will find CONFIG_RTE_LOG_LEVEL=8.
-You can change this to a lower value, such as 6 to reduce this printout of debug information. The following is a list of LOG levels that can be found in the rte_log.h file.
-You must remove, then rebuild, the EAL directory for the change to become effective as the configuration file creates the rte_config.h file in the EAL directory.
+Yes, the option ``--log-level=`` accepts one of these numbers:
.. code-block:: c
@@ -103,6 +101,9 @@ You must remove, then rebuild, the EAL d
#define RTE_LOG_INFO 7U /* Informational. */
#define RTE_LOG_DEBUG 8U /* Debug-level messages. */
+It is also possible to change the maximum (and default level) at compile time
+with ``CONFIG_RTE_LOG_LEVEL``.
+
How can I tune my network application to achieve lower latency?
---------------------------------------------------------------
Index: dpdk/lib/librte_eal/common/eal_common_log.c
===================================================================
--- dpdk.orig/lib/librte_eal/common/eal_common_log.c
+++ dpdk/lib/librte_eal/common/eal_common_log.c
@@ -195,5 +195,10 @@ rte_eal_common_log_init(FILE *default_lo
{
default_log_stream = default_log;
rte_openlog_stream(default_log);
+
+#if RTE_LOG_LEVEL >= RTE_LOG_DEBUG
+ RTE_LOG(NOTICE, EAL, "Debug logs available - lower performance\n");
+#endif
+
return 0;
}
Index: dpdk/lib/librte_eal/common/eal_common_options.c
===================================================================
--- dpdk.orig/lib/librte_eal/common/eal_common_options.c
+++ dpdk/lib/librte_eal/common/eal_common_options.c
@@ -141,7 +141,11 @@ eal_reset_internal_config(struct interna
internal_cfg->syslog_facility = LOG_DAEMON;
/* default value from build option */
+#if RTE_LOG_LEVEL >= RTE_LOG_DEBUG
+ internal_cfg->log_level = RTE_LOG_INFO;
+#else
internal_cfg->log_level = RTE_LOG_LEVEL;
+#endif
internal_cfg->xen_dom0_support = 0;
Index: dpdk/scripts/test-build.sh
===================================================================
--- dpdk.orig/scripts/test-build.sh
+++ dpdk/scripts/test-build.sh
@@ -138,6 +138,7 @@ config () # <directory> <target> <option
! echo $3 | grep -q '+shared' || \
sed -ri 's,(SHARED_LIB=)n,\1y,' $1/.config
! echo $3 | grep -q '+debug' || ( \
+ sed -ri 's,(RTE_LOG_LEVEL=).*,\1RTE_LOG_DEBUG,' $1/.config
sed -ri 's,(_DEBUG.*=)n,\1y,' $1/.config
sed -ri 's,(_STAT.*=)n,\1y,' $1/.config
sed -ri 's,(TEST_PMD_RECORD_.*=)n,\1y,' $1/.config )
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