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Adjust the fanspeed by the magnitude of the temperature difference when in the optimal range.

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This commit is contained in:
Con Kolivas 2012-06-28 09:26:33 +10:00
parent 55aaa7c1cc
commit e16452f09f
1 changed files with 7 additions and 4 deletions
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11
adl.c
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@ -13,6 +13,7 @@
#include <stdio.h>
#include <string.h>
#include <math.h>
#ifdef HAVE_CURSES
#include <curses.h>
@ -1050,14 +1051,16 @@ static bool fan_autotune(int gpu, int temp, int fanpercent, int lasttemp, bool *
applog(LOG_DEBUG, "Temperature %d degrees below target, decreasing fanspeed", opt_hysteresis);
newpercent = ga->targetfan - 1;
} else {
int tdiff = round(temp - lasttemp);
/* We're in the optimal range, make minor adjustments if the
* temp is still drifting */
if (fanpercent > bot && temp < lasttemp && lasttemp < ga->targettemp) {
if (fanpercent > bot && tdiff < 0 && lasttemp < ga->targettemp) {
applog(LOG_DEBUG, "Temperature dropping while in target range, decreasing fanspeed");
newpercent = ga->targetfan - 1;
} else if (fanpercent < top && temp > lasttemp && temp > ga->targettemp - opt_hysteresis) {
newpercent = ga->targetfan + tdiff;
} else if (fanpercent < top && tdiff > 0 && temp > ga->targettemp - opt_hysteresis) {
applog(LOG_DEBUG, "Temperature rising while in target range, increasing fanspeed");
newpercent = ga->targetfan + 1;
newpercent = ga->targetfan + tdiff;
}
}