diff -aur a/config b/config
--- a/config	2015-09-12 17:06:26.826047838 -0500
+++ b/config	2015-09-12 23:49:57.322033642 -0500
@@ -392,6 +392,13 @@
 # CONFIG_MK6 is not set
 # CONFIG_MK7 is not set
 # CONFIG_MK8 is not set
+# CONFIG_MK8SSE3 is not set
+# CONFIG_MK10 is not set
+# CONFIG_MBARCELONA is not set
+# CONFIG_MBOBCAT is not set
+# CONFIG_MBULLDOZER is not set
+# CONFIG_MPILEDRIVER is not set
+# CONFIG_MJAGUAR is not set
 # CONFIG_MCRUSOE is not set
 # CONFIG_MEFFICEON is not set
 # CONFIG_MWINCHIPC6 is not set
@@ -402,8 +409,16 @@
 # CONFIG_MCYRIXIII is not set
 # CONFIG_MVIAC3_2 is not set
 # CONFIG_MVIAC7 is not set
-# CONFIG_MCORE2 is not set
 # CONFIG_MATOM is not set
+# CONFIG_MCORE2 is not set
+# CONFIG_MNEHALEM is not set
+# CONFIG_MWESTMERE is not set
+# CONFIG_MSILVERMONT is not set
+# CONFIG_MSANDYBRIDGE is not set
+# CONFIG_MIVYBRIDGE is not set
+# CONFIG_MHASWELL is not set
+# CONFIG_MBROADWELL is not set
+# CONFIG_MNATIVE is not set
 CONFIG_X86_GENERIC=y
 CONFIG_X86_INTERNODE_CACHE_SHIFT=6
 CONFIG_X86_L1_CACHE_SHIFT=6
diff -aur linux/config.x86_64 linux-new/config.x86_64
--- a/config.x86_64	2015-09-12 17:06:26.832714354 -0500
+++ b/config.x86_64	2015-09-12 23:47:13.706278823 -0500
@@ -400,10 +400,25 @@
 CONFIG_PARAVIRT_CLOCK=y
 CONFIG_NO_BOOTMEM=y
 # CONFIG_MK8 is not set
+# CONFIG_MK8SSE3 is not set
+# CONFIG_MK10 is not set
+# CONFIG_MBARCELONA is not set
+# CONFIG_MBOBCAT is not set
+# CONFIG_MBULLDOZER is not set
+# CONFIG_MPILEDRIVER is not set
+# CONFIG_MJAGUAR is not set
 # CONFIG_MPSC is not set
-# CONFIG_MCORE2 is not set
 # CONFIG_MATOM is not set
+# CONFIG_MCORE2 is not set
+# CONFIG_MNEHALEM is not set
+# CONFIG_MWESTMERE is not set
+# CONFIG_MSILVERMONT is not set
+# CONFIG_MSANDYBRIDGE is not set
+# CONFIG_MIVYBRIDGE is not set
+# CONFIG_MHASWELL is not set
+# CONFIG_MBROADWELL is not set
 CONFIG_GENERIC_CPU=y
+# CONFIG_MNATIVE is not set
 CONFIG_X86_INTERNODE_CACHE_SHIFT=6
 CONFIG_X86_L1_CACHE_SHIFT=6
 CONFIG_X86_TSC=y
diff -aur linux/PKGBUILD linux-new/PKGBUILD
--- a/PKGBUILD	2015-09-12 17:06:26.839380870 -0500
+++ b/PKGBUILD	2015-09-12 23:50:00.447808838 -0500
@@ -5,6 +5,8 @@
 pkgbase=linux               # Build stock -ARCH kernel
 #pkgbase=linux-custom       # Build kernel with a different name
 _srcname=linux-4.2
+_gcc_patch="enable_additional_cpu_optimizations_for_gcc_v4.9+_kernel_v3.15+.patch"
+_cpu_type= # see https://github.com/graysky2/kernel_gcc_patch
 pkgver=4.2
 pkgrel=4
 arch=('i686' 'x86_64')
@@ -24,17 +26,19 @@
         '0001-make_flush_workqueue_non_gpl.patch'
         '0001-e1000e-Fix-tight-loop-implementation-of-systime-read.patch'
         '0001-netfilter-conntrack-use-nf_ct_tmpl_free-in-CT-synpro.patch'
-        '0001-fix-bridge-regression.patch')
+        '0001-fix-bridge-regression.patch'
+        "http://repo-ck.com/source/gcc_patch/${_gcc_patch}.gz")
 sha256sums=('cf20e044f17588d2a42c8f2a450b0fd84dfdbd579b489d93e9ab7d0e8b45dbeb'
             'SKIP'
-            'e6f6f804f98ad321ce3e4395924993b51decb89699fde369391ccbb4bae928b2'
-            'a071aaa327d2b3577fa4709b47ed5fe81c7914d168607f3db905fdbf226247e7'
+            'f8039a58f91dd6a62eccd21c22365970947cf149bb92262b08d7e72aaa6d4b9c'
+            '4491217e1d417ae46dbcac51735debd7258da7505e93097e125f574faeee5141'
             'f0d90e756f14533ee67afda280500511a62465b4f76adcc5effa95a40045179c'
             '1256b241cd477b265a3c2d64bdc19ffe3c9bbcee82ea3994c590c2c76e767d99'
             '4e776734e2c2185910a6fbb6f333d967b04f4a72b3196310af286c6a779bd97d'
             '0b1e41ba59ae45f5929963aa22fdc53bc8ffb4534e976cec046269d1a462197b'
             '6ed9e31ae5614c289c4884620e45698e764c03670ebc45bab9319d741238cbd3'
-            '0a8fe4434e930d393c7983e335842f6cb77ee263af5592a0ca7e14bae7296183')
+            '0a8fe4434e930d393c7983e335842f6cb77ee263af5592a0ca7e14bae7296183'
+            '819961379909c028e321f37e27a8b1b08f1f1e3dd58680e07b541921282da532')
 validpgpkeys=(
               'ABAF11C65A2970B130ABE3C479BE3E4300411886' # Linus Torvalds
               '647F28654894E3BD457199BE38DBBDC86092693E' # Greg Kroah-Hartman
@@ -68,6 +72,10 @@
   # https://bugzilla.kernel.org/show_bug.cgi?id=104161
   patch -Np1 -i "${srcdir}/0001-fix-bridge-regression.patch"
   
+  # Patch source to enable more gcc CPU optimizations via the make nconfig
+  msg "Patching source with gcc patch to enable more cpu types"
+  patch -Np1 -i "${srcdir}/${_gcc_patch}"
+
   # set DEFAULT_CONSOLE_LOGLEVEL to 4 (same value as the 'quiet' kernel param)
   # remove this when a Kconfig knob is made available by upstream
   # (relevant patch sent upstream: https://lkml.org/lkml/2011/7/26/227)
@@ -79,6 +87,11 @@
     cat "${srcdir}/config" > ./.config
   fi
 
+  if [ -n "$_cpu_type" ]; then
+    msg "Setting CONFIG_$_cpu_type..."
+    sed -i "s|CONFIG_GENERIC_CPU=y|# CONFIG_GENERIC_CPU is not set\nCONFIG_$_cpu_type=y|" ./.config
+  fi
+
   if [ "${_kernelname}" != "" ]; then
     sed -i "s|CONFIG_LOCALVERSION=.*|CONFIG_LOCALVERSION=\"${_kernelname}\"|g" ./.config
     sed -i "s|CONFIG_LOCALVERSION_AUTO=.*|CONFIG_LOCALVERSION_AUTO=n|" ./.config