summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorMike Rapoport <rppt@linux.vnet.ibm.com>2016-05-04 13:15:50 +0300
committerMichael S. Tsirkin <mst@redhat.com>2016-06-06 13:00:11 +0300
commitef1b144d23dbd745fd655b7d0a70212fcc8d0121 (patch)
treefd1a0f8127762337be66d51ef96e3e508cc05749
parent3b220cf867ce6881c7f671b27564c4cc13d8c4b8 (diff)
downloadlinux-ef1b144d23dbd745fd655b7d0a70212fcc8d0121.tar.gz
tools/virtio/ringtest: fix run-on-all.sh to work without /dev/cpu
/dev/cpu is only available on x86 with certain modules (e.g. msr) enabled. Using lscpu to get processors count is more portable. Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-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