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| author | Justin TerAvest <teravest@google.com> | 2011-03-16 09:05:09 +0100 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2011-03-16 09:05:09 +0100 |
| commit | 4fad2b83eea0cbe2eb7d6e7d659c6bbb263f08d4 (patch) | |
| tree | 3c23d40c440fc6cdb2a8853005a8f7fb9fd1aa48 | |
| parent | 8fe5cc8d646d2fccbf82d0021d3c323ef6738a28 (diff) | |
| download | blktrace-4fad2b83eea0cbe2eb7d6e7d659c6bbb263f08d4.tar.gz | |
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 <teravest@google.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
| -rw-r--r-- | blktrace.c | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -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" \ |