I have a PHP-script running on my server via a cronjob. The job runs every minute. In the php script i have a loop that executes, then waits one sevond and loops again. Essentially creating a script to run once every second.
Now I'm wondering, if i make the cronjob run only once per hour and have the script still loop for an entire hour or possible an entire day.. Would this have any impact on the servers cpu and or memory and if so, will it be positive or negative?
分享 In my opinion it would have a negative impact. since the scripts keeps using resources. cron is called on a time based scale that is already running on the server. But cronjob can only run once a minute at most.
Another thing is if the script times out, fails, crashes for whatever reason you end up with not running the script for at max one hour. Would have a positive impact on server load but not what you're looking for i guess? :)
maybe run it every 2 or even 5 minutes to spare server load?
OR maybe change the script so it does not wait but just executes once and calling it from cron job. should have a positive impact on server load.
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