[PATCH] tools/power turbostat: print power values upto three decimal

From: Sumeet Pawnikar
Date: Thu Sep 30 2021 - 09:09:59 EST


Print power values upto three decimal places in watts.

Suggested-by: Tony Luck <tony.luck@xxxxxxxxx>
Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@xxxxxxxxx>
---
tools/power/x86/turbostat/turbostat.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 47d3ba895d6d..26f640f61010 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -4698,7 +4698,7 @@ int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p

void print_power_limit_msr(int cpu, unsigned long long msr, char *label)
{
- fprintf(outf, "cpu%d: %s: %sabled (%f Watts, %f sec, clamp %sabled)\n",
+ fprintf(outf, "cpu%d: %s: %sabled (%0.3f Watts, %f sec, clamp %sabled)\n",
cpu, label,
((msr >> 15) & 1) ? "EN" : "DIS",
((msr >> 0) & 0x7FFF) * rapl_power_units,
@@ -4762,7 +4762,7 @@ int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p)
cpu, msr, (msr >> 63) & 1 ? "" : "UN");

print_power_limit_msr(cpu, msr, "PKG Limit #1");
- fprintf(outf, "cpu%d: PKG Limit #2: %sabled (%f Watts, %f* sec, clamp %sabled)\n",
+ fprintf(outf, "cpu%d: PKG Limit #2: %sabled (%0.3f Watts, %f* sec, clamp %sabled)\n",
cpu,
((msr >> 47) & 1) ? "EN" : "DIS",
((msr >> 32) & 0x7FFF) * rapl_power_units,
--
2.17.1