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alexarch21 / history-explorer-card

A card for Home Assistant Lovelace for exploring the history of your entities interactively and in real time.

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What's the bottleneck to speed?

bastiaanterhorst opened this issue · comments

commented

Thanks for this card, it is incredibly useful!

One thing I am wondering about is how I can make it faster. I notice that switching to a different time scale or panning back can take a long time to load; between 5 and 30 seconds.

Looking at my HA instance CPU it doesn't come above 10%. Memory is also low.
My data is hosted on an external MariaDB instance (on my NAS), and that also has CPU usage <10%, low memory, and low disk utilisation.

So I'm wondering what the bottleneck is. If anyone has a clue, I'd really appreciate any hints about how to improve the speed I see.

Thanks!

commented

Your DB access is the bottleneck here. With a high speed DB (even on the default SQlite backend), the operations you listed are pretty much instant.

commented

Thanks, your nudge led me to install MariaDB via docker which led to a huge speed increase. Thanks!