fs/fs.c: do_fsload: measure throughput

This patch adds time measurement and throughput calculation for
all supported load commands.

The output of ext2load changes from

---8<---
1830666 bytes read
--->8---

to

---8<---
1830666 bytes read in 237 ms (7.4 MiB/s)
--->8---

Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
[agust: rebased and revised commit log]
Signed-off-by: Anatolij Gustschin <agust@denx.de>

diff --git a/fs/fs.c b/fs/fs.c
index ff360af..023e7ef 100644 (file)
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -257,6 +257,7 @@ int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
        unsigned long pos;
        int len_read;
        char buf[12];
+       unsigned long time;
 
        if (argc < 2)
                return CMD_RET_USAGE;
@@ -293,11 +294,19 @@ int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
        else
                pos = 0;
 
+       time = get_timer(0);
        len_read = fs_read(filename, addr, pos, bytes);
+       time = get_timer(time);
        if (len_read <= 0)
                return 1;
 
-       printf("%d bytes read\n", len_read);
+       printf("%d bytes read in %lu ms", len_read, time);
+       if (time > 0) {
+               puts(" (");
+               print_size(len_read / time * 1000, "/s");
+               puts(")");
+       }
+       puts("\n");
 
        sprintf(buf, "0x%x", len_read);
        setenv("filesize", buf);