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Keep estimating using the latest know temperature even if equal

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This commit is contained in:
Andrea Mazzoleni 2025-10-16 17:55:22 +02:00
parent 47c164154d
commit adc968e5c9
2 changed files with 13 additions and 7 deletions
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18
cmdline/thermal.c
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@ -220,6 +220,7 @@ void state_thermal(struct snapraid_state* state, time_t now)
struct snapraid_thermal* found;
devinfo_t* devinfo = i->data;
unsigned k;
unsigned count;
int temperature = smart_temp(devinfo);
if (temperature < 0)
@ -254,22 +255,27 @@ void state_thermal(struct snapraid_state* state, time_t now)
if (found->count + 1 >= THERMAL_MAX) /* keep one extra space at the end */
continue;
/* only monotone increasing temperature */
if (found->count > 0 && found->data[found->count - 1].temperature >= temperature)
/* only monotone temperature */
if (found->count > 0 && found->data[found->count - 1].temperature > temperature)
continue;
/* insert the new data point */
found->data[found->count].temperature = temperature;
found->data[found->count].time = now - state->thermal_first;
++found->count;
log_tag("thermal:heat:%s:%" PRIu64 ":%u:", devinfo->name, devinfo->device, found->count);
for (k = 0; k < found->count; ++k)
/* if it's a new temperature, store it, otherwise have it ovewritten the next time */
count = found->count + 1;
if (found->count == 0 || found->data[found->count - 1].temperature < temperature)
found->count = count;
/* log the new data */
log_tag("thermal:heat:%s:%" PRIu64 ":%u:", devinfo->name, devinfo->device, count);
for (k = 0; k < count; ++k)
log_tag("%s%d/%d", k > 0 ? "," : "", (int)found->data[k].temperature, (int)found->data[k].time);
log_tag("\n");
/* estimate parameters */
found->params = fit_thermal_model(found->data, found->count, state->thermal_ambient_temperature);
found->params = fit_thermal_model(found->data, count, state->thermal_ambient_temperature);
log_tag("thermal:params:%s:%" PRIu64 ":%g:%g:%g:%g:%g:%g\n", devinfo->name, devinfo->device,
found->params.k_heat, found->params.t_ambient, found->params.t_steady,

2
cmdline/thermal.h
View file

@ -56,7 +56,7 @@ struct snapraid_thermal {
uint64_t device; /**< Device ID. */
char name[PATH_MAX]; /**< Name of the disk. Note that it's not unique as more physical disks may map to the same logical disk */
int latest_temperature; /**< Latest temperature */
struct snapraid_thermal_point data[THERMAL_MAX];
struct snapraid_thermal_point data[THERMAL_MAX]; /**< Measures. Stopped after the first sleep. */
unsigned count; /**< Number of measures */
struct snapraid_thermal_params params; /**< Estimated thermal parameters */
tommy_node node; /**< Next node in the list. */