summaryrefslogtreecommitdiff
path: root/conf.d/qemu.d
diff options
context:
space:
mode:
authorLuke Shumaker <lukeshu@lukeshu.com>2018-07-12 00:41:28 -0400
committerLuke Shumaker <lukeshu@lukeshu.com>2018-08-21 00:51:06 -0400
commit386c4d38702b2643c09d8db7d7851a39f8798406 (patch)
tree3295403d934ffeb6bcbd1837d90b090fc2c676e8 /conf.d/qemu.d
parente3bb3556afb3a612a724095614fade0863a1a667 (diff)
Add NUMA support and vCPU pinning
Diffstat (limited to 'conf.d/qemu.d')
-rw-r--r--conf.d/qemu.d/beefcake25
1 files changed, 20 insertions, 5 deletions
diff --git a/conf.d/qemu.d/beefcake b/conf.d/qemu.d/beefcake
index 6e671bd..49315cb 100644
--- a/conf.d/qemu.d/beefcake
+++ b/conf.d/qemu.d/beefcake
@@ -2,17 +2,16 @@
system=x86_64
args=(
- #-nodefaults
-no-user-config
-no-reboot # let the systemd supervisor know we're restarting
-machine accel=kvm
- -m 32768 # 32 GiB RAM
+
+ -m $((30*1024)) # We have 32 GiB RAM on this socket; leave 2GiB for qemu itself
# 1 socket / 8 cores-per-node / 2 threads-per-core = total of 16 CPUs
-smp sockets=1,cores=8,threads=2,cpus=16
- # TODO: Split that in to 2 NUMA nodes; 4 cores and 16 GiB RAM each
-
- #-no-hpet
+ -numa node,cpus=0-7
+ -numa node,cpus=8-15
-uuid 4c42bd65-6ad5-456d-8b76-758ecb795e21
-drive media=disk,file=/dev/vg_build64/lv_beefcake_root,format=raw,if=virtio
@@ -24,3 +23,19 @@ args=(
-writeconfig /tmp/beefcake.cfg
)
+
+# numactl=(
+# --membind=2,3
+# --cpunodebind=2,3
+# )
+# for i in {0..15}; do
+# vcpu2cpulist[$i]=$((16+$i))
+# done
+
+numactl=(
+ --membind=0,1
+ --cpunodebind=0,1
+)
+for i in {0..15}; do
+ vcpu2cpulist[$i]=$i
+done