runboy93
Posts: 352
Joined: Tue Feb 28, 2017 1:17 pm
Location: Finland
Contact: Website

RPi 3 tweaking tips?

Wed Mar 01, 2017 8:51 pm

Improved tweaks!

https://goo.gl/FU636b
Last edited by runboy93 on Mon Feb 19, 2018 7:31 am, edited 10 times in total.

peterlite
Posts: 720
Joined: Sun Apr 17, 2016 4:00 am

Re: RPi 3 tweaking tips?

Thu Mar 02, 2017 11:17 am

The SD card write speed makes the most difference in my projects. The speed printed on the card, C10 etc, is mostly a fraudulent misrepresentation of a very short initial burst of speed. Spending an extra $10 on a card can give you 10x write speed.

Placing temporary files into ram looks like the next most useful step if your ram is not flooded by something else. There are a few posts on using ram. I have used it on a Pi 3 because the ram is rarely more than half used. I stopped using it because the smaller Pi Zero memory is easily flooded.

dukla2000
Posts: 190
Joined: Tue Jan 10, 2012 12:02 am
Location: Reading.UK.EU

Re: RPi 3 tweaking tips?

Thu Mar 02, 2017 8:43 pm

peterlite wrote:The SD card write speed makes the most difference in my projects. The speed printed on the card, C10 etc, is mostly a fraudulent misrepresentation of a very short initial burst of speed.
+1
There are numerous threads on SD card speed/benchmarks so hope I don't derail this thread by mentioning it: personally feel small file random read/write speed is the gold standard (as per iozone) and Samsung Evo+ the card to beat. And then overclocking the card - add dtparam=sd_overclock=100 to config.txt.

gpu_mem=256 seems overkill to me but no doubt depends what you are doing with the GPU - I get away with 64 and have no problems with general purpose video/DVD/DVB with omxplayer (which frees RAM for other purposes). Similarly prefer openbox as a desktop as it is also RAM-lite.

Add noarp to /etc/dhcpcd.conf to speed wifi connect times: saves me about 4s in systemd-analyze blame (and any reconnects) but obviously depends if (no)ARP is crucial to your network or not.
Daily driver: Pi3B, 64GB Samsung Evo+ @100MHz, DVB-T, onboard WiFi for internet, BT/USB dongle for KB/mouse, 250GB HDD via USB for media, Raspbian Jessie Lite with Openbox desktop.
Museum: Pi B

fruitoftheloom
Posts: 20123
Joined: Tue Mar 25, 2014 12:40 pm
Location: Delightful Dorset

Re: RPi 3 tweaking tips?

Thu Mar 02, 2017 8:44 pm

adieu

Asus CS10 Chromebit / HP Envy 4500 Wireless Printer / Raspberry Pi Model 2B v1.1 / RealVNC Software...

runboy93
Posts: 352
Joined: Tue Feb 28, 2017 1:17 pm
Location: Finland
Contact: Website

Re: RPi 3 tweaking tips?

Fri Mar 03, 2017 1:40 pm

Check first post or click from my signature, my new improved RPi tweaks!

runboy93
Posts: 352
Joined: Tue Feb 28, 2017 1:17 pm
Location: Finland
Contact: Website

Re: RPi 3 tweaking tips?

Sun May 28, 2017 4:59 pm

Updated!

runboy93
Posts: 352
Joined: Tue Feb 28, 2017 1:17 pm
Location: Finland
Contact: Website

Re: RPi 3 tweaking tips?

Tue Jan 16, 2018 10:19 am


FreeSkybird
Posts: 4
Joined: Sat Aug 03, 2019 10:29 pm

Re: RPi 3 tweaking tips?

Sun Aug 04, 2019 4:25 pm

The directories that I need to write to are missing. Or I'm doing something wrong

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