Changed RAM calculation formula.

Former : MemTotal - MemAvailable
New : (MemTotal - MemFree) - (Buffers + Cached)
This commit is contained in:
Vincent Loupmon 2016-03-09 12:38:22 +01:00
parent 2fb476aaf6
commit e241dbeba4
1 changed files with 4 additions and 3 deletions

View File

@ -162,7 +162,7 @@ char *
get_ram_usage() get_ram_usage()
{ {
int ram_perc; int ram_perc;
long total, free, available; long total, free, buffers, cached;
FILE *fp; FILE *fp;
/* open meminfo file */ /* open meminfo file */
@ -174,13 +174,14 @@ get_ram_usage()
/* read the values */ /* read the values */
fscanf(fp, "MemTotal: %ld kB\n", &total); fscanf(fp, "MemTotal: %ld kB\n", &total);
fscanf(fp, "MemFree: %ld kB\n", &free); fscanf(fp, "MemFree: %ld kB\n", &free);
fscanf(fp, "MemAvailable: %ld kB\n", &available); fscanf(fp, "MemAvailable: %ld kB\nBuffers: %ld kB\n", &buffers, &buffers);
fscanf(fp, "Cached: %ld kB\n", &cached);
/* close meminfo file */ /* close meminfo file */
fclose(fp); fclose(fp);
/* calculate percentage */ /* calculate percentage */
ram_perc = 100 * (total - available) / total; ram_perc = 100 * ((total - free) - (buffers + cached)) / total;
/* return ram_perc as string */ /* return ram_perc as string */
return smprintf("%d%%",ram_perc); return smprintf("%d%%",ram_perc);