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f3probe: improve report

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- Show copyright header.
- Use friendly and precise units.
- Measure and show time to probe device.
This commit is contained in:
Michel Machado 2014-08-19 16:54:56 -04:00
parent d940ecd19a
commit 6a63a5fff4
2 changed files with 24 additions and 5 deletions
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2
Makefile
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@ -13,7 +13,7 @@ f3write: utils.o f3write.o
f3read: utils.o f3read.o
$(CC) -o $@ $^
f3probe: libprobe.o f3probe.o
f3probe: libprobe.o utils.o f3probe.o
$(CC) -o $@ $^ -ludev
-include *.d

27
f3probe.c
View File

@ -5,10 +5,14 @@
#include <stdbool.h>
#include <assert.h>
#include <inttypes.h>
#include <sys/time.h>
#include "version.h"
#include "libprobe.h"
/* XXX Refactor utils library since f3probe barely uses it. */
#include "utils.h"
/* Argp's global variables. */
const char *argp_program_version = "F3 Probe " F3_STR_VERSION;
@ -203,8 +207,19 @@ static int unit_test(const char *filename)
return 0;
}
static void report(const char *prefix, uint64_t bytes)
{
double f = (double)bytes;
const char *unit = adjust_unit(&f);
assert(bytes % SECTOR_SIZE == 0);
printf("%s %.2f %s (%" PRIu64 " sectors)\n", prefix, f, unit,
bytes / SECTOR_SIZE);
}
static int test_device(struct args *args)
{
struct timeval t1, t2;
double time_s;
struct device *dev;
enum fake_type fake_type;
uint64_t real_size_byte, announced_size_byte;
@ -215,7 +230,9 @@ static int test_device(struct args *args)
args->fake_size_gb, args->fake_type)
: create_block_device(args->filename);
assert(dev);
assert(!gettimeofday(&t1, NULL));
probe_device(dev, &real_size_byte, &announced_size_byte, &wrap);
assert(!gettimeofday(&t2, NULL));
free_device(dev);
fake_type = dev_param_to_type(real_size_byte, announced_size_byte,
@ -239,11 +256,12 @@ static int test_device(struct args *args)
break;
}
/* XXX Add user friendly values, and sectors. */
time_s = (t2.tv_sec - t1.tv_sec) + (t2.tv_usec - t1.tv_usec)/1000000.;
printf("\nDevice geometry:\n");
printf("\t *Real* size: %" PRIu64 " Bytes\n", real_size_byte);
printf("\tAnnounced size: %" PRIu64 " Bytes\n", announced_size_byte);
printf("\t Wrap: 2^%i\n\n", wrap);
report("\t *Real* size:", real_size_byte);
report("\tAnnounced size:", announced_size_byte);
printf("\t Module: 2^%i\n", wrap);
printf("\nProbe time: %.2f seconds\n", time_s);
return 0;
}
@ -260,6 +278,7 @@ int main(int argc, char **argv)
/* Read parameters. */
argp_parse(&argp, argc, argv, 0, NULL, &args);
print_header(stdout, "probe");
if (args.unit_test)
return unit_test(args.filename);