Processortemperatur

Jag har haft problem med hög processortemperatur. Förmodligen beror den höga temperaturen på att det kommit in damm i datorn och blockerat kylningen. Problemet har jag haft tidigare. Jag har försökt lösa det genom att använda en dammsugare och försökt suga ut dammet via ventilationsöppningarna. Jag lyckas väl sådär. Men problemet har gjort att jag börjat kontrollera temperaturen flera gånger per dag.
Kommandot för att avläsa temperaturen är:
sensors | grep Core
Resultatet:
Core 0: +51.0°C (high = +84.0°C, crit = +100.0°C)
Core 1: +49.0°C (high = +84.0°C, crit = +100.0°C)
Core 2: +51.0°C (high = +84.0°C, crit = +100.0°C)
Core 3: +51.0°C (high = +84.0°C, crit = +100.0°C)

För att slippa att mnuellt kontrollera temperaturen har jag gjort ett program som körs en gång per timme och resultatet sparas i en databas. Exekveringen startas med hjälp av crontab.
02 * * * * root /home/jan/Development/Cprog/Temperatur/cpu_temp

Program:
cpu_temp_2
/**************************************** * cpu_temp_2.c * 2015-12-22 Jan Pihlgren, 2019-05-24 * * Kompilering: gcc -o cpu_temp cpu_temp_2.c -I/usr/local/include -L/usr/local/lib/mysql -lmysqlclient * Exekvering: ./cpu_temp * ****************************************/ #include <string.h> #include <stdio.h> #include <stdlib.h> #include <time.h> #include </usr/include/mysql/mysql.h> #define BUFSIZE 200 char indatafile[] = "/home/jan/temp/temp.txt"; int main(int argc, char *argv[]) { time_t tid; struct tm *info; char buffer[BUFSIZE]; char query[BUFSIZE]; char klockan[10]; char datum[11]; char temperatur[9]=""; int i; char *p; const char ch='+'; char arr[4][9]; MYSQL *mysql; MYSQL_RES *result; char host[] = "localhost"; char databas[] = "coretemperatur"; char user[] = "root"; char passw[] = "passw"; // Ditt lösenord för root system("sensors | grep Core > /home/jan/temp/temp.txt"); FILE *fp; fp=fopen(indatafile, "r"); for (i = 0;i < 4; i++){ fread(buffer,58,1,fp); p = strchr(buffer,ch); strncpy(temperatur,p,7); // printf("%s\n",temperatur); strcpy(arr[i],temperatur); } fclose(fp); char core1[8]; char core2[8]; char core3[8]; char core4[8]; strcpy(core1,arr[0]); strcpy(core2,arr[1]); strcpy(core3,arr[2]); strcpy(core4,arr[3]); /* printf("Core = %s %s %s %s\n",core1,core2,core3,core4); */ time(&tid); info = localtime(&tid); strftime(buffer,80,"%H:%M",info); strcpy(klockan,buffer); strftime(buffer,80,"%Y-%m-%d",info); strcpy(datum,buffer); snprintf(query,BUFSIZE,"INSERT INTO temp (Datum, Klockan, Core0Temp, Core1Temp, Core2Temp, Core3Temp) VALUES ('%s', '%s', '%s', '%s', '%s', '%s')",datum, klockan, core1, core2, core3, core4); /* printf("query = %s\n",query); */ /* attempt to connecto to the server */ mysql = mysql_init(NULL); if(!mysql_real_connect(mysql,host,user,passw,databas,0,NULL,0)){ perror(mysql_error(mysql)); /* printf("Error Insert!"); */ return 0; } /* run the SQL query */ if (mysql_query(mysql, query) == 0){ /* printf("Post insatt!\n"); */ } result = mysql_store_result(mysql); /* clean up */ mysql_free_result(result); mysql_close(mysql); return 0; }

Databas coretemperatur:
Skapa databasen från nedanstående beskrivning:
mysql -u username -p < /home/jan/Development/Cprog/Temperatur/coretemp.sql

SQL-fil:
coretemp.sql
-- MySQL dump 10.16 Distrib 10.1.39-MariaDB, for Linux (x86_64) -- -- Host: localhost Database: coretemperatur -- ------------------------------------------------------ -- Server version 10.1.39-MariaDB /*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */; /*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */; /*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */; /*!40101 SET NAMES utf8 */; /*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */; /*!40103 SET TIME_ZONE='+00:00' */; /*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */; /*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */; /*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */; /*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */; -- -- Table structure for table `temp` -- DROP TABLE IF EXISTS `temp`; /*!40101 SET @saved_cs_client = @@character_set_client */; /*!40101 SET character_set_client = utf8 */; CREATE TABLE `temp` ( `Datum` varchar(11) COLLATE utf8_swedish_ci NOT NULL, `Klockan` varchar(5) COLLATE utf8_swedish_ci NOT NULL, `Core0Temp` varchar(10) COLLATE utf8_swedish_ci NOT NULL, `Core1Temp` varchar(10) COLLATE utf8_swedish_ci NOT NULL, `Core2Temp` varchar(10) COLLATE utf8_swedish_ci NOT NULL, `Core3Temp` varchar(10) COLLATE utf8_swedish_ci NOT NULL ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_swedish_ci; /*!40101 SET character_set_client = @saved_cs_client */; /*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */; /*!40101 SET SQL_MODE=@OLD_SQL_MODE */; /*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */; /*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */; /*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */; /*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */; /*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */; /*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */; -- Dump completed on 2019-05-21 7:43:33