path: root/recipes-kernel
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authorNaveen Saini <>2019-08-21 02:11:38 (GMT)
committerAnuj Mittal <>2019-08-21 04:30:01 (GMT)
commit04510bfabd50bb33da8ccc5075a2c5163605d552 (patch)
tree99d38ae3eec10b9c7214cf9e81d11147275a918c /recipes-kernel
parentae9f89ee8166a7fecd30d7df59e8c2052080d4c0 (diff)
conf: add new machine intel-skylake-64
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: 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 <> Signed-off-by: Anuj Mittal <>
Diffstat (limited to 'recipes-kernel')
1 files changed, 1 insertions, 0 deletions
diff --git a/recipes-kernel/linux/ b/recipes-kernel/linux/
index be5056c..a985925 100644
--- a/recipes-kernel/linux/
+++ b/recipes-kernel/linux/
@@ -8,6 +8,7 @@ KERNEL_FEATURES_intel-x86-common = "${KERNEL_FEATURES_INTEL_COMMON}"
8 8
9KMACHINE_corei7-64-intel-common = "intel-corei7-64" 9KMACHINE_corei7-64-intel-common = "intel-corei7-64"
10KMACHINE_core2-32-intel-common = "intel-core2-32" 10KMACHINE_core2-32-intel-common = "intel-core2-32"
11KMACHINE_skylake-64-intel-common = "intel-corei7-64"
11 12
12INTEL_COMMON_AUTOLOAD ?= " uio iwlwifi i915" 13INTEL_COMMON_AUTOLOAD ?= " uio iwlwifi i915"