diff options
| author |   Peter Mikus <pmikus@cisco.com> | 2016-11-21 08:33:33 +0000 |
|---|---|---|
| committer | Peter Mikus <pmikus@cisco.com> | 2016-11-21 08:35:50 +0000 |
| commit | 272b02a7e3faf6ee9c677942ca67a2d600673c29 (patch) | |
| tree | b6572971886edda6004fc7fb3bcbd8163fa5f545 | |
| parent | 3e62e29b594f36e80f397a02bc4eaa88ff71ab0d (diff) | |
Add performance optimization to Nested VM
- Add isolcpu to grub
- Add SMP affinity pinning into testpmd startup script
Change-Id: I027635f9c27f565e2be10656663463a1b7274afc
Signed-off-by: pmikus <pmikus@cisco.com>
| -rwxr-xr-x | resources/tools/disk-image-builder/nested/image-patches/06-dpdk-support | 5 | ||||
| -rw-r--r-- | resources/tools/disk-image-builder/nested/image-patches/07-isolate-cpu | 8 |
2 files changed, 13 insertions, 0 deletions
diff --git a/resources/tools/disk-image-builder/nested/image-patches/06-dpdk-support b/resources/tools/disk-image-builder/nested/image-patches/06-dpdk-support index 99ac0e14e3..fb166ef2cf 100755 --- a/resources/tools/disk-image-builder/nested/image-patches/06-dpdk-support +++ b/resources/tools/disk-image-builder/nested/image-patches/06-dpdk-support @@ -50,6 +50,11 @@ do echo $dev > /sys/bus/pci/drivers/${TARGET_DRIVER}/bind done +for i in $(ls /proc/irq/ | grep [0-9]) +do + echo 1 > /proc/irq/$i/smp_affinity +done + # Start testpmd in the background. This looks a bit convoluted; we need to redirect stdin # (and keep stdin active) or else testpmd will quit. tail -f /dev/null | nohup testpmd $@ > ${TESTPMD_LOG} 2>&1 & diff --git a/resources/tools/disk-image-builder/nested/image-patches/07-isolate-cpu b/resources/tools/disk-image-builder/nested/image-patches/07-isolate-cpu new file mode 100644 index 0000000000..72d94160be --- /dev/null +++ b/resources/tools/disk-image-builder/nested/image-patches/07-isolate-cpu @@ -0,0 +1,8 @@ +#!/bin/sh + +patch boot/grub/menu.lst <<"_EOF" +15c17 +< kernel /boot/bzImage rw root=/dev/sda1 console=ttyS0,115200n8 +--- +> kernel /boot/bzImage rw root=/dev/sda1 console=ttyS0,115200n8 isolcpus=1-7 nohz_full=1-7 rcu_nocbs=1-7 +_EOF
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