From 4fad2b83eea0cbe2eb7d6e7d659c6bbb263f08d4 Mon Sep 17 00:00:00 2001 From: Justin TerAvest Date: Wed, 16 Mar 2011 09:05:09 +0100 Subject: [PATCH] blktrace: Document default values for -b and -n To help users better deal with the log message "You have dropped events, consider using a larger buffer size (-b)", it's helpful to list the defaults for sub buffer management, without flags. Signed-off-by: Justin TerAvest Signed-off-by: Jens Axboe --- blktrace.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/blktrace.c b/blktrace.c index 18c5157..72866e2 100644 --- a/blktrace.c +++ b/blktrace.c @@ -460,8 +460,8 @@ static char usage_str[] = "\n\n" \ "\t-w Stop after defined time, in seconds\n" \ "\t-a Only trace specified actions. See documentation\n" \ "\t-A Give trace mask as a single value. See documentation\n" \ - "\t-b Sub buffer size in KiB\n" \ - "\t-n Number of sub buffers\n" \ + "\t-b Sub buffer size in KiB (default 512)\n" \ + "\t-n Number of sub buffers (default 4)\n" \ "\t-l Run in network listen mode (blktrace server)\n" \ "\t-h Run in network client mode, connecting to the given host\n" \ "\t-p Network port to use (default 8462)\n" \ -- 2.25.1