diff options
| author | Luke Shumaker <lukeshu@lukeshu.com> | 2018-07-14 23:34:18 -0400 |
|---|---|---|
| committer | Luke Shumaker <lukeshu@lukeshu.com> | 2018-08-21 00:51:06 -0400 |
| commit | 799e0edc196c4273b728b9f832d90dc79bbf8bbe (patch) | |
| tree | 7911ac148020d9ea58c89fa7a0dcde8b5e4adb8e /conf.d/qemu.d/beefcake | |
| parent | 386c4d38702b2643c09d8db7d7851a39f8798406 (diff) | |
Fix vCPU pinning, fix NUMA example
Diffstat (limited to 'conf.d/qemu.d/beefcake')
| -rw-r--r-- | conf.d/qemu.d/beefcake | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/conf.d/qemu.d/beefcake b/conf.d/qemu.d/beefcake index 49315cb..21b7e74 100644 --- a/conf.d/qemu.d/beefcake +++ b/conf.d/qemu.d/beefcake @@ -7,11 +7,17 @@ args=( -machine accel=kvm - -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 - -numa node,cpus=0-7 - -numa node,cpus=8-15 + # RAM: 16 GiB per NUMA node, but leave 1 GiB per node for QEMU itself + -m $((30*1024)) + -object memory-backend-ram,id=ram0,prealloc=on,size=$((15*1024**3)),host-nodes=0,policy=bind + -object memory-backend-ram,id=ram1,prealloc=on,size=$((15*1024**3)),host-nodes=1,policy=bind + # CPU: 1 socket / 8 cores-per-node / 2 threads-per-core = total of 16 CPUs + # Except that it's AMD, and QEMU thinks all threads are Intel HT, so turn off threads + # The distance between the two nodes is '16' + -smp sockets=1,cores=16,threads=1,cpus=16 + -numa node,nodeid=0,memdev=ram0,cpus=0-7 + -numa node,nodeid=1,memdev=ram1,cpus=8-15 + -numa dist,src=0,dst=1,val=16 -uuid 4c42bd65-6ad5-456d-8b76-758ecb795e21 -drive media=disk,file=/dev/vg_build64/lv_beefcake_root,format=raw,if=virtio @@ -24,14 +30,6 @@ args=( -writeconfig /tmp/beefcake.cfg ) -# numactl=( -# --membind=2,3 -# --cpunodebind=2,3 -# ) -# for i in {0..15}; do -# vcpu2cpulist[$i]=$((16+$i)) -# done - numactl=( --membind=0,1 --cpunodebind=0,1 |