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-rwxr-xr-xtools/virtio/ringtest/run-on-all.sh4
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/virtio/ringtest/run-on-all.sh b/tools/virtio/ringtest/run-on-all.sh
index 52b0f71ffa8d..2e69ca812b4c 100755
--- a/tools/virtio/ringtest/run-on-all.sh
+++ b/tools/virtio/ringtest/run-on-all.sh
@@ -3,10 +3,10 @@
#use last CPU for host. Why not the first?
#many devices tend to use cpu0 by default so
#it tends to be busier
-HOST_AFFINITY=$(cd /dev/cpu; ls|grep -v '[a-z]'|sort -n|tail -1)
+HOST_AFFINITY=$(lscpu -p=cpu | tail -1)
#run command on all cpus
-for cpu in $(cd /dev/cpu; ls|grep -v '[a-z]'|sort -n);
+for cpu in $(seq 0 $HOST_AFFINITY)
do
#Don't run guest and host on same CPU
#It actually works ok if using signalling