/* 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
/* 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
/* 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