Fix: documented number of subbuffers is incorrect

[lttng-tools.git] / src / common / defaults.h

diff --git a/src/common/defaults.h b/src/common/defaults.h
index b15bdc9e2cb6b35ac4c67b8f0f4447726cd82d1a..2389894219e20b3665d9f5707ffbfb116b66b19f 100644 (file)
--- a/src/common/defaults.h
+++ b/src/common/defaults.h
@@ -19,6 +19,15 @@
 #ifndef _DEFAULTS_H
 #define _DEFAULTS_H
 
+/* Default unix group name for tracing. */
+#define DEFAULT_TRACING_GROUP                   "tracing"
+
+/* Environment variable to set session daemon binary path. */
+#define DEFAULT_SESSIOND_PATH_ENV               "LTTNG_SESSIOND_PATH"
+
+/* Default trace output directory name */
+#define DEFAULT_TRACE_DIR_NAME                  "lttng-traces"
+
 /* Default size of a hash table */
 #define DEFAULT_HT_SIZE                         4
 
@@ -72,7 +81,7 @@
 /* DEFAULT_CHANNEL_SUBBUF_SIZE must always be a power of 2 */
 #define DEFAULT_CHANNEL_SUBBUF_SIZE     4096    /* bytes */
 /* DEFAULT_CHANNEL_SUBBUF_NUM must always be a power of 2 */
-#define DEFAULT_CHANNEL_SUBBUF_NUM      8
+#define DEFAULT_CHANNEL_SUBBUF_NUM      4
 #define DEFAULT_CHANNEL_SWITCH_TIMER    0       /* usec */
 #define DEFAULT_CHANNEL_READ_TIMER             200     /* usec */
 #define DEFAULT_CHANNEL_OUTPUT          LTTNG_EVENT_MMAP
@@ -84,8 +93,11 @@
 
 /* DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE must always be a power of 2 */
 #define DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE  262144    /* bytes */
-/* DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM must always be a power of 2 */
-#define DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM   4
+/*
+ * DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM must always be a power of 2.
+ * Update help manually if override.
+ */
+#define DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM   DEFAULT_CHANNEL_SUBBUF_NUM
 /* See lttng-kernel.h enum lttng_kernel_output for channel output */
 #define DEFAULT_KERNEL_CHANNEL_OUTPUT       LTTNG_EVENT_SPLICE
 
@@ -93,8 +105,8 @@
 
 /* Must be a power of 2 */
 #define DEFAULT_UST_CHANNEL_SUBBUF_SIZE     4096    /* bytes */
-/* Must be a power of 2 */
-#define DEFAULT_UST_CHANNEL_SUBBUF_NUM      4
+/* Must be a power of 2. Update help manuall if override. */
+#define DEFAULT_UST_CHANNEL_SUBBUF_NUM      DEFAULT_CHANNEL_SUBBUF_NUM
 /* See lttng-ust.h enum lttng_ust_output */
 #define DEFAULT_UST_CHANNEL_OUTPUT          LTTNG_EVENT_MMAP