Age | Commit message (Collapse) | Author |
|
Use skylake-client instead of legacy kvm64 for intel-skylake-64 MACHINE.
Also helps prevent problems when booting up using KVM in QEMU.
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
|
|
Add 64-bit new machine (intel-skylake-64) with -march=skylake
and avx2 instruction-set set up.
We do see a qemu-usermode failure at build time, on setup of
avx2 instruction-set as QEMU does not support AVX instruction
set.
Check this:
https://bugs.launchpad.net/qemu/+bug/1818075
So to bypass this issue disabling qemu-usermode for intel-skylake-64
machine.
Due to above limitation and in order to not affecting existing
machines, this new machine is being proposed to add.
A quick performance comparision between intel-corei7-64 vs intel-skylake-64 machines
Measurements are in time, taken by the benchmark tests. Less is better.
Test/Benchmark intel-corei7-64 intel-skylake-64
(1) CppPerformanceBenchmarks (Test: Math Library)
(1st) 5m 15.70s 4m 36.39s
(2nd) 5m 16.37s 4m 36.51s
(3rd) 5m 15.54s 4m 37.80s
CppPerformanceBenchmarks is a set of C++ compiler performance benchmarks.
(2) AOBench
(1st) 0m 35.07s 0m 28.74s
(2nd) 0m 34.90s 0m 28.72s
(3rd) 0m 34.85s 0m 28.89s
AOBench is a lightweight ambient occlusion renderer, written in C. The
test profile is using a size of 2048 x 2048.
(3) C-Ray
(1st) 320 seconds 232 seconds
(2nd) 320 seconds 232 seconds
(3rd) 321 seconds 232 seconds
C-Ray, a simple raytracer designed to test the floating-point CPU performance.
For this patch, 'bitbake world' gets successfully built with latest poky master.
Signed-off-by: Naveen Saini <naveen.kumar.saini@intel.com>
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
|
|
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: California Sullivan <california.l.sullivan@intel.com>
|
|
The latest OE's runqemu script by default uses the following
SLIRP options
-netdev user,id=net0,hostfwd=tcp::2222-:22,hostfwd=tcp::2323-:23
which are suitable for meta-intel too. And what is more important
they don't follow the deprecated syntax currently present in the
option values overriden by meta-intel.
The patch drops the meta-intel specific overrides.
Signed-off-by: Dmitry Rozhkov <dmitry.rozhkov@linux.intel.com>
Signed-off-by: California Sullivan <california.l.sullivan@intel.com>
|
|
Although the machines definitions in meta-intel are meant to target
real hardware, begin able to start the resulting images under qemu is
nevertheless useful for testing.
Doing that via runqemu depends on a per-image runqemu.conf that
describes how to run qemu for the image. Ineriting qemuboot.bbclass in
image recipes with QB_ variables set for the current architecture via
overrides creates that file.
The new qemuboot-intel.inc was copied from OE-core's qemuboot-x86.inc
and adapted to the three common machines in meta-intel:
$ diff ../openembedded-core/meta/conf/machine/include/qemuboot-x86.inc conf/machine/include/qemuboot-intel.inc
3,5c3,5
< QB_SYSTEM_NAME_x86 = "qemu-system-i386"
< QB_CPU_x86 = "-cpu qemu32"
< QB_CPU_KVM_x86 = "-cpu kvm32"
---
> QB_SYSTEM_NAME_intel-core2-32 = "qemu-system-i386"
> QB_CPU_intel-core2-32 = "-cpu coreduo"
> QB_CPU_KVM_intel-core2-32 = "-cpu kvm32"
7,9c7,13
< QB_SYSTEM_NAME_x86-64 = "qemu-system-x86_64"
< QB_CPU_x86-64 = "-cpu core2duo"
< QB_CPU_KVM_x86-64 = "-cpu kvm64"
---
> QB_SYSTEM_NAME_intel-corei7-64 = "qemu-system-x86_64"
> QB_CPU_intel-corei7-64 = "-cpu Nehalem"
> QB_CPU_KVM_intel-corei7-64 = "-cpu kvm64"
>
> QB_SYSTEM_NAME_intel-quark = "qemu-system-i386"
> QB_CPU_intel-quark = "-cpu coreduo"
> QB_CPU_KVM_intel-quark = "-cpu kvm32"
For performance reasons, runqemu uses virtio for the boot disk. The
kernel therefore must have the necessary drivers enabled. This may
also be useful when running a meta-intel machine image on other
virtual platforms and therefore the default kernel configuration gets
changed to enable virtio.
However, OE-core's qemu.inc also enables various other tweaks for
running under qemu, like deriving the wired Ethernet address from the
kernel boot parameters. This is probably less desirable for a
meta-intel machine and thus not enabled in the new qemu-intel.inc. The
downside is that the resulting images then come up without assigned IP
address when used under qemu. Distros which want that feature can
still add it to their images by copying settings from OE-core's
qemu.inc.
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: California Sullivan <california.l.sullivan@intel.com>
|