Hello, yes I can :-)
https://www.brendangregg.com/ on the page you will find a link to his 'Linux Performance' book. On the page are also further Infos about the topic 'performance'. you will have to dive into the stuff. (e)BPF is a "MIGHTY" area. But you can pull out nearly 'every' meta data from the kernel. Also for your interest: https://www.brendangregg.com/Slides/SREcon2022_ComputingPerformance/ Computing Performance 2022 and what is on the horizon! have fun! Slainte ---------------------------------------- 26.12.2022 18:09:39 Gk Gk <ygk....@gmail.com>: > Thanks Marco for the response. Is it possible to collect these vm stats from > the host KVM hypervisor ? Also can u give the link for this book ? > > Thanks > Happy holidays > > On Monday, December 26, 2022, Marko Horn <we...@zbfmail.de> wrote: >> Hi, >> >> I think best way is to use BPF to collect stats. I did this in past in >> combination with 'perf'. >> Theres a nice book of Brandon Greg from Netflix Networks where he describe >> how to do this and how to write own scripts. >> >> merry Xmas >> >> marko >> >> ________________________________ >> >> 26.12.2022 11:34:20 Gk Gk <ygk....@gmail.com>: >> >> Hi All, >> I am trying to collect memory, disk and network stats for a VM on kvm host. >> It seems that the statistics are not matching what the OS inside the VM is >> reporting. Why is this discrepancy ? >> Is this a known bug of libvirt ? Also I heard that libvirt shows cumulative >> figures for these measures ever since the VM was created. Also I tested by >> creating a new vm and comparing the stats without a reboot . Even in this >> case, the stats dont agree. Can someone help me here please ? >> >> Thanks >> Kumar >>