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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <unistd.h>
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void print_datetime(time_t now) {
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struct tm *local = localtime(&now);
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char buffer[20];
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strftime(buffer, sizeof(buffer), "%Y-%m-%d %H:%M", local);
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printf("%s", buffer);
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}
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void print_load() {
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double loadavg[3];
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if (getloadavg(loadavg, 3) == -1) {
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perror("getloadavg failed");
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return;
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}
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if(loadavg[0] > 1.0){
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int result = system("ps aux | awk '$3 > 1.0' | sort -k3 -nr");
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// int result = system("top -n 1");
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(void)result;
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}
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printf("%.2f %.2f %.2f", loadavg[0], loadavg[1], loadavg[2]);
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}
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int main(int argc, char *argv[]) {
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time_t start_time = time(NULL);
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while (true) {
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for(int i = 1; i < argc; i++){
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printf("%s ", argv[i]);
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}
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if(argc == 1){
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printf("%s", "\rUpdate ");
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}
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print_datetime(time(NULL));
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printf("%s", " since ");
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print_datetime(start_time);
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printf("%s", ". ");
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printf("%s", "Load: ");
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print_load();
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printf(".%s", "\n");
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fflush(stdout);
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usleep(59 * 1000 * 1000);
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}
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return 0;
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}
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