[HN Gopher] 64 bit OS Raspberry Pi4 Benchmarks ___________________________________________________________________ 64 bit OS Raspberry Pi4 Benchmarks Author : tosh Score : 49 points Date : 2020-02-29 19:10 UTC (3 hours ago) (HTM) web link (medium.com) (TXT) w3m dump (medium.com) | moonbug wrote: | I think the main issue keeping the pi with a 32b userspace is the | lack of availability of 64bit GPU firmware | 0xcoffee wrote: | Apparently in `config.txt` you can set `arm_64bit=1` | | Then `sudo rpi-update` | echlebek wrote: | This results in a 64-bit kernel, but 32-bit userland, whereas | the arm64 Debian is entirely 64-bit. | MuffinFlavored wrote: | Do you need the `arm_64bit=1` flag to get 64-bit kernel, | 64-bit userland or no? I would have thought 64-bit everything | would have been the default. | monocasa wrote: | config.txt only affects the kernel and doesn't affect which | userland is selected. | Zaskoda wrote: | I just gave it a try and now apt is installing a bunch of | new kernel .img files. So for me, yes, this seemed to be | required before 64bit kernels were installed. I'm feeling | surprised. I'm 40% of the way through the install and | hoping it reboots okay in the end. | | Edit: to be more clear, I also run 'apt update' afterwards | Zaskoda wrote: | Update: oh yeah, that broke a lot of stuff | threatofrain wrote: | There's also 64-bit Ubuntu Server and Core. | | - https://www.raspberrypi.org/downloads/ | louwrentius wrote: | So running the Pi in 64-bit is really overall beneficial. I'm | running a customised version of Ubuntu for the Pi4. | | https://ubuntu.com/download/raspberry-pi | | I've also customised the image by adding users, public keys and | such. Removing some of the cloud cruft. | | These instructions make it very, very easy and you can do this on | an x86 machine. Just make sure to use /usr/bin/qemu- | aarch64-static (64 bits) instead of qemu-arm-static (32 bits). | | https://powersj.io/post/raspbian-edit-image/ | monocasa wrote: | Depends on the Pi. The A53 based Pis did a little worse in 64 | bit mode on average IIRC (probs because of the cache pressure). | muth02446 wrote: | what would be ideal for raspi 3 and up are aarch64 binaries with | a 32 bit memory model (aarch64-ilp32). Dies debian support/use | this? ___________________________________________________________________ (page generated 2020-02-29 23:00 UTC)