averello/f3-mirror
1
0
Fork 0
mirror of https://github.com/AltraMayor/f3.git synced 2025-12-13 20:39:59 +01:00
Code Issues Packages Projects Releases Wiki Activity

f3write now reports proper progress

Browse Source 
In the previous version of f3write, fdatasync(2) was used to
show the progress printouts smoothly.
However, it slows down a lot the execution, and hurts
the writing speed measurement.

This new version finds out what is the writing speed of
the memory card being tested using an algorithm that reseables
TCP's congestion control algorithm, and keeps writing at that
speed; this allows smooth progress printouts.

f3write is even faster now!
This commit is contained in:
Michel Machado
2011-12-17 15:32:11 -05:00
parent 597aa0fb3c
commit 7c0be994e1
4 changed files with 322 additions and 96 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
f3read.c
View File

@@ -14,15 +14,6 @@
#include "utils.h"
static int is_my_file(const char *filename)
{
return (strlen(filename) == 8) && isdigit(filename[0]) &&
isdigit(filename[1]) && isdigit(filename[2]) &&
isdigit(filename[3]) && (filename[4] == '.') &&
(filename[5] == 'f') && (filename[6] == 'f') &&
(filename[7] == 'f');
}
static uint64_t offset_from_filename(const char *filename)
{
char str[5];
@@ -71,7 +62,7 @@ static void validate_file(const char *path, const char *filename,
printf("Validating file %s ... %s", filename, progress ? BLANK : "");
fflush(stdout);
snprintf(full_fn, PATH_MAX, "%s/%s", path, filename);
get_full_fn(full_fn, sizeof(full_fn), path, filename);
f = fopen(full_fn, "rb");
if (!f)
err(errno, "Can't open file %s", full_fn);
@@ -206,7 +197,7 @@ static int iterate_path(const char *path, int progress)
/* Reading speed. */
read_speed = (double)tot_size / dt_to_s(&tot_dt);
unit = adjust_unit(&read_speed);
printf("Reading speed: %.2f %s/s\n", read_speed, unit);
printf("Average reading speed: %.2f %s/s\n", read_speed, unit);
return 0;
}