You may want to check the traffics in your server prom time to time, and checking CPU and number of threads are actually essential.
Below code (httpd_count.sh) prints the total number of HTTP threads, so you can check its status.
httpd_count.sh
#!/bin/bash
for i in {1..99999}
do
ss | grep http | wc -l
sleep 1
done
Below code (httpd_count.php) prints the total number of HTTP threads with # bar, so you can check its status more visually.
httpd_count.php
#!/usr/bin/php
<?php
foreach($argv as $v)
{
$v = strtolower($v);
}
$loop_limit=1000;
for($i=0; $i<$loop_limit; $i++)
{
if ($i) sleep(1);
$resp = shell_exec( "ss | grep http | wc -l");
$process_count = intval($resp);
if ($process_count<100) $bar_str = "\033[32m";
else if ($process_count<200) $bar_str = "\033[33m";
else if ($process_count<500) $bar_str = "\033[35m";
else
{
$bar_str = "\033[31m";
}
$bar_str = "";
$bar_count = round( $process_count/20, 0);
while( $bar_count>0 )
{
$bar_str .= "#";
$bar_count--;
};
if ($process_count) $bar_str .= "#";
$bar_str .= "\033[0m";
echo "$bar_str {$process_count}\n";
}