On Fri, 2022-12-09 at 12:18 -0800, Brian C. Lane wrote: > On Fri, Dec 09, 2022 at 09:30:29AM -0500, Ray Strode wrote: > > Hi, > > > > On Thu, Dec 8, 2022 at 2:55 PM Adam Williamson > > <adamwill@xxxxxxxxxxxxxxxxx> wrote: > > > This is the direction Daniel was thinking down. I'm waiting for someone > > > with more expertise to reply, but I suspect the reply is going to be > > > along the lines of "yes, we *can* do that, but it's somewhat tricky > > > work that involves thinking about lots of paths that aren't obvious, > > > and somebody would need to dedicate their time to working on that". > > Presumably we could package the firmware separately and just unpack it > > into place from a udev rule when the hardware is detected? > > > > But first, do we actually know this is a problem? > > I think you're saying squashfs loads the whole decompressed image into > > memory, but my expectation prior to your mail was that it performs I/O > > on the usb stick (with a cache in between). If my intuition was right > > and files only hit ram when accessed, then it seems like this is > > pretty much not an issue, right? > > > > Do you have stats on memory usage when running in a live environment? > > Your intuition is correct, if you boot from an ISO, USB, or NFS the > squashfs image is not read into memory. If you are PXE booting (without > using NFS for stage2) then it all goes into RAM. > > Loading firmware off the iso later isn't going to help things :) Thanks for the correction. So, image size and memory usage are only correlated in the specific case of a PXE install with no NFS? In that case, this is overall probably less important than I thought it was initially. Sorry for the error. In that case I guess we could be rather more relaxed about the size. -- Adam Williamson Fedora QA IRC: adamw | Twitter: adamw_ha https://www.happyassassin.net _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
