Thanks for the excellent explanation. I increased the report interval to 5 minutes.
I don't understand this though: One final thing, if you start using 1 minute and decide later to move to 5 > minutes (or vice versa), there is no simple method to move between the two. > It can be done but you will need to manually manipulate your database. Is the problem with building charts from a time period with different reporting times? On Sun, Feb 26, 2017 at 2:22 AM, gjr80 <[email protected]> wrote: > No real direct disadvantages, you will fill your database quicker than > most, but storage is cheap and it's nothing that the dbms used by weeWX > can't handle. CPU load is not necessarily an issue, unless you make it an > issue. WeeWX spends most of its time reading and storing loop data and > doing other bits of housekeeping, all not very CPU intensive. The CPU > intensive work happens during the report generation, depending on your > machine the report cycle might take a few seconds, a tens of seconds or > longer. If you add extra reports to your system and your reports > (regularly) take longer than your archive period to run then the next > report cycle kicks off before the last one finishes. Because report > generation is CPU intensive it slows down the already running reports. So > as you can imagine things can slowly grind to a halt. Now if your archive > period is short, and if you have added more reports, you have more chance > of running into this overload situation than someone who, say, uses a 5 > minute archive period. If you like, you have less 'headroom'. Also coming > into the equation are any other tasks your macine is doing (web server etc) > as they will load the system as well. > > At the end of the day it really is horses for courses. If your > reports(including FTP) take a few seconds to run you can probably handle > 1minute easily. If your reports take say 45+ seconds you are probably > borderline, anything more and you are asking for trouble. You will find > lots of folks use a 5 minute archive period with a Vantage. Get your system > running as you want then monitor your logs for a few cycles to see how long > the reports take. If you add more reports to your system, monitor your logs > again. > > One final thing, if you start using 1 minute and decide later to move to 5 > minutes (or vice versa), there is no simple method to move between the two. > It can be done but you will need to manually manipulate your database. > > Gary > > -- > You received this message because you are subscribed to a topic in the > Google Groups "weewx-user" group. > To unsubscribe from this topic, visit https://groups.google.com/d/ > topic/weewx-user/vb8Dv3IPZFw/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
