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sd_bench: add documentation

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This commit is contained in:
Beat Küng
2017-07-14 11:57:11 +02:00
parent 06178392ce
commit 1b4467f674
1 changed files with 7 additions and 9 deletions
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src/systemcmds/sd_bench/sd_bench.c
+7 -9
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@@ -43,6 +43,7 @@
#include <unistd.h>
#include <px4_config.h>
#include <px4_module.h>
#include <px4_includes.h>
#include <px4_getopt.h>
#include <px4_log.h>
@@ -72,16 +73,13 @@ static bool synchronized; ///< call fsync after each block?
static void
usage()
{
PX4_WARN(
"Test the speed of an SD Card. Usage:\n"
"sd_bench [-b <block_size>] [-r <runs>] [-d <duration>] [-s]\n"
"\n"
"\t-b <block_size>\t\tBlock size for each read/write (default=4096)\n"
"\t-r <runs>\t\tNumber of runs (default=5)\n"
"\t-d <duration>\t\tDuration of a run in ms (default=2000)\n"
"\t-s \t\t\tCall fsync after each block (default=at end of each run)\n"
);
PRINT_MODULE_DESCRIPTION("Test the speed of an SD Card");
PRINT_MODULE_USAGE_NAME_SIMPLE("sd_bench", "command");
PRINT_MODULE_USAGE_PARAM_INT('b', 4096, 1, 1000000, "Block size for each read/write", true);
PRINT_MODULE_USAGE_PARAM_INT('r', 5, 1, 1000, "Number of runs", true);
PRINT_MODULE_USAGE_PARAM_INT('d', 2000, 1, 100000, "Duration of a run in ms", true);
PRINT_MODULE_USAGE_PARAM_FLAG('s', "Call fsync after each block (default=at end of each run)", true);
}
int