[ovirt-users] Re: Guest OS Memory Free/Cached/Buffered: Not Configured
Thanks, I will play around a little with the settings. The VM is a build agent so disk caching is not too much of a concern. I originally started with only 4GB of memory and build times only slightly improved with 16GB (104 minutes to 100 minutes). ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/GENLHWWEHHFH7XOQF2E32PD3KUIQWVT5/
[ovirt-users] Re: Guest OS Memory Free/Cached/Buffered: Not Configured
Thanks Liran, that issue fits my problem indeed. Installing ovirt-guest-agent on the older VM's (CentOS 7) did the trick. However, on a CentOS 8 (Kernel 4.18) + qemu-guest-agent (2.12.0) the values still do not show. But maybe the guest agents are still too old. ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/VXIM2VYLQC5UIWQJ56UO3N2TDPE4BORC/
[ovirt-users] Re: Guest OS Memory Free/Cached/Buffered: Not Configured
Hi Stefan, you can control the VM's cache (if Linux) via: - vm.vfs_cache_pressure - vm.dirty_background_ratio/vm.dirty_background_bytes - vm.dirty_ratio/vm.dirty_bytes - vm.dirty_writeback_centisecs - vm.dirty_expire_centisecs I would just increase the vfs_cache_pressure to 120 and check if it frees most of their cache.Sadly without cache performance will drop , but you can't assign unlimited memory :D Best Regards, Strahil Nikolov В неделя, 29 ноември 2020 г., 10:57:00 Гринуич+2, Stefan Seifried написа: Hi, I'm quite new to oVirt, so my apologizies if I'm asking something dead obvious: I noticed that there is an item in the 'General Tab' of each VM, which says 'Guest OS Memory Free/Cached/Buffered' and on all my VM's it says 'Not Configured'. Right now I'm trying to figure out how to enable this feature. I assume that this gives me the equivalent output of executing 'free' on the shell on a Linux guest. Googling and digging around the VMM guide did not give me any pointers so far. Thanks in advance, Stefan PS: A little background info: I have one 'client' which keeps nagging me to increase the RAM on his VM because it's constantly operating at 95% memory load (as shown on the VM dashboard). After a quick investigation with 'free' I could see that Linux has built up the disk cache to 12G (from 16G total, no swapping occured). My intention is to make the real memory load visible to him, as he has already access to the VM portal for shutdown/restart/etc. ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/4IBDDFYNKD7PESO7BTR66SZRGQTSXCVD/ ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/VF7C4IQE4RBQ4YW75DQNDRSIP5TRKGKA/
[ovirt-users] Re: Guest OS Memory Free/Cached/Buffered: Not Configured
Hi Stefan, Please check out https://bugzilla.redhat.com/1884050 if it fits your problem. The resolution was having the right guest-agent installed in the guest(qemu-guest-agent or ovirt-guest-agent). On Sun, Nov 29, 2020 at 10:57 AM Stefan Seifried wrote: > Hi, > > I'm quite new to oVirt, so my apologizies if I'm asking something dead > obvious: > I noticed that there is an item in the 'General Tab' of each VM, which > says 'Guest OS Memory Free/Cached/Buffered' and on all my VM's it says 'Not > Configured'. Right now I'm trying to figure out how to enable this feature. > I assume that this gives me the equivalent output of executing 'free' on > the shell on a Linux guest. > > Googling and digging around the VMM guide did not give me any pointers so > far. > > Thanks in advance, > Stefan > > PS: A little background info: I have one 'client' which keeps nagging me > to increase the RAM on his VM because it's constantly operating at 95% > memory load (as shown on the VM dashboard). After a quick investigation > with 'free' I could see that Linux has built up the disk cache to 12G (from > 16G total, no swapping occured). My intention is to make the real memory > load visible to him, as he has already access to the VM portal for > shutdown/restart/etc. > ___ > Users mailing list -- users@ovirt.org > To unsubscribe send an email to users-le...@ovirt.org > Privacy Statement: https://www.ovirt.org/privacy-policy.html > oVirt Code of Conduct: > https://www.ovirt.org/community/about/community-guidelines/ > List Archives: > https://lists.ovirt.org/archives/list/users@ovirt.org/message/4IBDDFYNKD7PESO7BTR66SZRGQTSXCVD/ > ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/76XUOTFFLVEVBAEJ7NUSPGF45ZZF3AOH/
