RPI 5 performance issues

Hi all, I just purchased a RPI5 and started using it, but it is quite slow and I would like to know if I need to return it or if it is a SD/power/software issue. Description of the issues When I open Chromium it takes several seconds to let me type a URL Control is blocked every once in a while (mouse does not move for ~7 second), sometimes more frequently System conditions This happens below 80 degres, usually the temp is below 70 (according to the default panel temp plug-in). According to HTOP most of the time CPU usage is below 10% for each core and memory 900MB/8GB The system RPI 5 8GB Fresh install of latest RaspiOS with desktop Screen resolution is 1080p SD card is class 10, I ran the test and it passes read, fails write at 6-7MB/s over the 10MB/s recommended. One USB device connected (wireless keyboard dongle) 67W laptop power supplier (although, for some odd reason I get the message that is not supplying 5A) No fan or heatsink (but no case either) The ask 1. What can I run to test the effective performance? 2. Should I be testing with a USB drive or a different power supplier (if that impacts performances)? 3. Should I return it as defective? Thank you for the help!

Try getting the official power supply, or some other reputable power supply first, then move on to SD card troubleshooting...

You can use the stress command to basically benchmark the pi

100% sure the pi is not defective

Imo you should not use SD cards and rather use an SSD...

Though I think I shouldn't complain about that since I myself am using an 8 gig class 5 SD card from 2013, yes, it's more than a decade old... and not experiencing issues

I would not want to buy an extra power supply if this has more than enough current. But I can try a different one I have if that can impact on performances. Also, I wouldn't be 100% confident it's not the Pi. I'll try the stress command. Thanks.

67W laptop power supplier (although, for some odd reason I get the message that is not supplying 5A) If the power supply doesn't support "PD" it has no way to tell the Raspberry Pi that it can deliver the 5A.

got it, thanks; is there a way to override this in the PI via software/hardware to ensure it that there is enough current?

I have searched but I haven't found and any info yet

But AFAIK that only make the USB unable to deliver higher current (1200mA in total)

thanks, that was my understanding, too. that's why I wanted to check it did not impact my performances issue.

usb_max_current_enable=1 in /boot/config.txt will override

thank you, much appreciated

I had an issue that sounds similar and it turned out to be a problem with the wireless keyboard and mouse dongle. If you’re able swap it with a wired version that may help to quickly see if that’s your issue as well.

there is a possibility the reason it is so slow is because there is an update going on. try examining your processes to see if anything is taking up a lot of memory or cpu

You can also see the assumed/max power consumption with the command lsusb -v|egrep "^Bus|MaxPower"

thanks, <@755956874045685786>, unfortunately I tried also with a wired one, did not make a difference. thanks also <@796000224690307072> that's very useful, I'll give it a try

I found an old SSD and I am using that now; seems to be working smoothly, I'll keep testing for a few more days, but I'm confident the issue was the slow SD now and not the device. Thank you for the help.