On Wed, Jul 11, 2018 at 08:33:36AM +0100, Peter Robinson wrote: > >> = Proposed System Wide Change: ZRAM support for ARM images = > >> https://fedoraproject.org/wiki/Changes/ZRAMforARMimages > >> > >> > >> Owner(s): > >> * Peter Robinson <pbrobinson at fedoraproject dot org> > >> > >> > >> Enable ZRAM for swap on ARMv7 and aarch64 pre generated images to > >> improve performance and reliability on ARM Single Board Computers such > >> a the Raspberry Pi. > >> > >> > >> == Detailed description == > >> Current Fedora release artifacts for ARM platforms enable a small > >> amount of swap by default. While this has generally works OK in the > >> past it can cause a number of issues primarily wearing out SD cards > >> due to excess use of wear leveling. ZRAM can mitigate this and provide > >> more memory for ARM SBCs by compressing part of memory and using it as > >> a swap space. This provides better performance and improved > >> reliability across this class of device which overall provides a > >> better end user experience. > >> > >> > >> == Scope == > >> > >> * Proposal owners: > >> Package and include zram config and systemd units. > > > > Which "zram" config? There have been various attempts, e.g. > > https://bugzilla.redhat.com/show_bug.cgi?id=1469726. Do you plan > > to reuse one of the existing projects, or create something from > > scratch? > > I plan on creating one from new but using various information from > these and other distros (I literally have dozens of tabs open of this > ATM) and information from the upstream kernel maintainer. The various > Fedora attempts all seem to be derived from one config [1]. The zram > upstream has evolved since then. Thanks. FWIW, I loaded the zram module on my laptop, and I see: - /dev/zram0 is created - /sys/block/zram0/max_comp_streams is 4, which matches the number of CPU threads I have (1 socket × 2 cores × 2 threads each). So creating multiple devices like [1] seems pointless, and also adjusting max_comp_streams like anaconda does unnecessary. That simplifies things. Zbyszek _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx/message/HB3VL25QBGTJLTWQI3RZPZPKKATGCR3K/
