grep -i dirty /proc/meminfo If that number gets high enough the machine will freeze all write io (dirty_ratio/bytes) until it gets down to the dirty_background_bytes/ratio.
If you hit this, how long that is is how long it takes to write out (background_ratio - ratio) * ram I have had good luck setting background_bytes to say 3000000 (3 MB) and setting ditry_ratio to say (5MB). With it being 2MB or a lower number than default (usually a % of ram) the pause is so small you won't notice it, and it some cases the pause is fast enough that other processes don't stall. On Wed, Jun 3, 2020 at 7:31 PM ToddAndMargo via users <users@lists.fedoraproject.org> wrote: > > Hi All, > > Fedora 32 > Xfce 4.14 > > Every so often, once every two weeks or so for no apparent > reason or program, my computer slows down to about 1/5 speed. > Typed letter take time to appear. File system stuff is five > times slower: tar, dump, etc.. > > And I can't find anything wrong. iotop and top both show > hardly anything happening. Here is a screenshot of atop: > > https://ibb.co/m8Gq1yQ > > I notice that when I am doing a tar or a dump, my hard drive > light is on solid or constantly flashing. When the slow > down occurs, it will stay off for a solid five seconds, > the flash a little, and back off again. > > And the tar and dumps always come out okay. They just > take five times longer. > > Any words of wisdom? > > Many thanks, > -T > _______________________________________________ > 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 _______________________________________________ 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
