On Tue, Mar 30, 2021 at 2:20 PM Khem Raj <raj.khem@...> wrote:
On 3/30/21 1:48 PM, Ross Burton wrote:
On Tue, 30 Mar 2021 at 20:41, Khem Raj <raj.khem@...> wrote:
Thanks for this infor Randy, really appreciated, I think I will also look at the h/w angle.
Khem: if you can reproduce this on demand with a clean build (ie oe-init-build-env with a clean build directory, just set DL_DIR) then enabling buildstats would give some interesting metrics. buildstats-diff can compare two build runs and tell you what the differences are.
yeah this is doing world build of not only core but several other layers included a usual build takes around 10 hrs for this machine config, I am planning to
1. Collect build stats 2. buiid another qemu machine on this VM
it could very well be rotting hardware underneath the VM.
To close the loop, it turned out to be the case that CPU performance on VM has deteriorated which stress-ng showed. The VM has been rebuilt and everything seems to be holding fine now. Thanks for your help and chiming in.
