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| author | Denys Vlasenko <dvlasenk@redhat.com> | 2010-10-26 13:03:31 +0200 |
|---|---|---|
| committer | Denys Vlasenko <dvlasenk@redhat.com> | 2010-10-26 13:03:31 +0200 |
| commit | a43e969574fca5ba17bb866c2aa249fe16ac0530 (patch) | |
| tree | 6ec0b274df8e6ee762b168089d9744ad15efe4b1 /procps | |
| parent | d8b687f99257772f62edd7c4641427280841e1c5 (diff) | |
| download | busybox-a43e969574fca5ba17bb866c2aa249fe16ac0530.tar.gz | |
powertop: simplified C-state display code
function old new delta
.rodata 145530 145514 -16
powertop_main 1510 1403 -107
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Diffstat (limited to 'procps')
| -rw-r--r-- | procps/powertop.c | 21 |
1 files changed, 7 insertions, 14 deletions
diff --git a/procps/powertop.c b/procps/powertop.c index 3d98b9bda..8b03a4d12 100644 --- a/procps/powertop.c +++ b/procps/powertop.c @@ -82,7 +82,6 @@ struct globals { ullong last_usage[MAX_CSTATE_COUNT]; ullong start_duration[MAX_CSTATE_COUNT]; ullong last_duration[MAX_CSTATE_COUNT]; - char cstate_names[MAX_CSTATE_COUNT][16]; #if ENABLE_FEATURE_USE_TERMIOS struct termios init_settings; #endif @@ -806,22 +805,19 @@ int powertop_main(int UNUSED_PARAM argc, char UNUSED_PARAM **argv) if (totalevents == 0 && G.maxcstate <= 1) { /* This should not happen */ - sprintf(cstate_lines[5], "< Detailed C-state information is not " - "available.>\n"); + strcpy(cstate_lines[0], "C-state information is not available\n"); } else { double percentage; - double newticks; + unsigned newticks; newticks = G.total_cpus * DEFAULT_SLEEP * FREQ_ACPI_1000 - totalticks; - /* Handle rounding errors: do not display negative values */ - if (newticks < 0) + if ((int)newticks < 0) newticks = 0; sprintf(cstate_lines[0], "Cn\t\t Avg residency\n"); percentage = newticks * 100.0 / (G.total_cpus * DEFAULT_SLEEP * FREQ_ACPI_1000); - sprintf(cstate_lines[1], "C0 (cpu running) (%4.1f%%)\n", - percentage); + sprintf(cstate_lines[1], "C0 (cpu running) (%4.1f%%)\n", percentage); /* Compute values for individual C-states */ for (i = 0; i < MAX_CSTATE_COUNT; i++) { @@ -831,11 +827,8 @@ int powertop_main(int UNUSED_PARAM argc, char UNUSED_PARAM **argv) / (cur_usage[i] - G.last_usage[i] + 0.1) / FREQ_ACPI; percentage = (cur_duration[i] - G.last_duration[i]) * 100 / (G.total_cpus * DEFAULT_SLEEP * FREQ_ACPI_1000); - - if (!G.cstate_names[i][0]) - sprintf(G.cstate_names[i], "C%u", i + 1); - sprintf(cstate_lines[i + 2], "%s\t\t%5.1fms (%4.1f%%)\n", - G.cstate_names[i], slept, percentage); + sprintf(cstate_lines[i + 2], "C%u\t\t%5.1fms (%4.1f%%)\n", + i + 1, slept, percentage); //if (maxsleep < slept) // maxsleep = slept; } @@ -844,7 +837,7 @@ int powertop_main(int UNUSED_PARAM argc, char UNUSED_PARAM **argv) for (i = 0; i < MAX_CSTATE_COUNT + 2; i++) if (cstate_lines[i][0]) - printf("%s", cstate_lines[i]); + fputs(cstate_lines[i], stdout); i = process_timer_stats(); #if ENABLE_FEATURE_POWERTOP_PROCIRQ |