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author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-04-19 16:05:56 -0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-04-20 13:22:44 -0300 |
commit | 58db1d6e7d5d24afa2d32e916fd6f6b6d240ba93 (patch) | |
tree | 06771be58f7f44c42579561029bb811747a9678f /tools/perf/util/units.c | |
parent | 9607ad3a63871b074a57ce1facd04a230c38725c (diff) | |
download | linux-58db1d6e7d5d24afa2d32e916fd6f6b6d240ba93.tar.bz2 |
perf tools: Move units conversion/formatting routines to separate object
Out of util.h, to disentangle it a bit more.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-vpksyj3w5fk9t8s6mxmkajyr@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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]); +} |