responses in-line... Rob Miller [email protected] (919)721-3339
On Thu, Oct 24, 2019 at 8:12 AM Jan Kiszka <[email protected]> wrote: > On 24.10.19 13:46, Rob Miller wrote: > > Pls see below > > > > Rob Miller > > [email protected] <mailto:[email protected]> > > (919)721-3339 > > > > > > On Thu, Oct 24, 2019 at 6:25 AM Jan Kiszka <[email protected] > > <mailto:[email protected]>> wrote: > > > > On 23.10.19 23:23, Rob Miller via Xenomai wrote: > > > Correction, stock images work by removing the enable-kvm and *NOT > > *adding > > > the -no-hpet QEMU cmdline options. > > > > > > also latency numbers are crazy with avg being 1678.126 usec w/ > > worst case > > > being 15463.240usec > > > > > > at this point, I'm not sure which way to go: > > > > > > 1) do I hunt down issues in HPET failing w/ KVM mode enabled? > > > 2) just go to dovetail > > > 3) ??? > > > > Don't have a the reference image around, but I'm pretty sure it would > > work here with QEMU 4300b7c2cd9f3f273804e8cca325842ccb93b1ad (post > 4.1) > > and KVM from 5.3.6. At least a different image is being used like > that > > for ages, and kernel config in xenomai-image is basically derived > > from it. > > > > RJM>] Will try > > > > > > For the xenomai-images check, did you use "start-qemu.sh x86" as-is? > > > > RJM>] Yes, my 1st failed attempts used unmodified start-qemu.sh x86, > > then I mod'd the file to remove the -enable-kvm, and it started to work > > UNTIL also added -no-hpet, then I can't even boot up. > > > > Number of host cores >= number of guest CPUs? If not, reduce -smp in the > QEMU invocation. > RJM>] yup, host has 16 cores whilst guest has 4 (using the stock images). > > Oh, and don't expect any kind of determinism in these setups. KVM and > QEMU are for functional testing only. > RJM>] Ah, good to know. > > Jan >
