diff options
Diffstat (limited to 'tools/perf/util/units.c')
-rw-r--r-- | tools/perf/util/units.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/tools/perf/util/units.c b/tools/perf/util/units.c new file mode 100644 index 000000000000..f6a2a3d117d5 --- /dev/null +++ b/tools/perf/util/units.c @@ -0,0 +1,39 @@ +#include "units.h" +#include <inttypes.h> +#include <linux/kernel.h> +#include <linux/time64.h> + +unsigned long convert_unit(unsigned long value, char *unit) +{ + *unit = ' '; + + if (value > 1000) { + value /= 1000; + *unit = 'K'; + } + + if (value > 1000) { + value /= 1000; + *unit = 'M'; + } + + if (value > 1000) { + value /= 1000; + *unit = 'G'; + } + + return value; +} + +int unit_number__scnprintf(char *buf, size_t size, u64 n) +{ + char unit[4] = "BKMG"; + int i = 0; + + while (((n / 1024) > 1) && (i < 3)) { + n /= 1024; + i++; + } + + return scnprintf(buf, size, "%" PRIu64 "%c", n, unit[i]); +} |