The SSDs are a lot slower than compressing a page into RAM. There was extensive discussion on the Fedora Devel list when this change was proposed.
Personally I was convinced that this change is an improvement for any system that is under memory pressure. I'm not going to try to recall the discussion as I may get some details wrong. I switched it on in F33 and have for over a year seen no down side for my work loads. My work loads are file+email server, firewall, KDE desktops, Kodi music server. At my work once we get on to Centos 8 I'm planning to performance test with zram swap. We have a work load that is very sensitive to disk I/O spikes and there is some sad code that uses swap for 10s to 15s every 20mins of so that I want to make go away. We have RAID-10 SSD where we see issues. Barry > On 21 Jun 2021, at 09:05, Bill Shirley <b...@shirleyfamily.net> wrote: > > The server is running on Raid-1 SSDs with 64GB of RAM > > Bill > > On 6/21/2021 3:41 AM, Samuel Sieb wrote: >> On 6/20/21 7:25 PM, Bill Shirley wrote: >>> One of the first things I did after installing F34 is disable swap-on-zram: >>> touch /etc/systemd/zram-generator.conf >>> and define a swap partition in fstab. >> >> Why? >> _______________________________________________ >> users mailing list -- users@lists.fedoraproject.org >> To unsubscribe send an email to users-le...@lists.fedoraproject.org >> 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/users@lists.fedoraproject.org >> Do not reply to spam on the list, report it: >> https://pagure.io/fedora-infrastructure > _______________________________________________ > users mailing list -- users@lists.fedoraproject.org > To unsubscribe send an email to users-le...@lists.fedoraproject.org > 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/users@lists.fedoraproject.org > Do not reply to spam on the list, report it: > https://pagure.io/fedora-infrastructure _______________________________________________ users mailing list -- users@lists.fedoraproject.org To unsubscribe send an email to users-le...@lists.fedoraproject.org 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/users@lists.fedoraproject.org Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
