talos-obmc-linux/tools/virtio/ringtest, branch dev-4.13

ptr_ring: support testing different batching sizes

2017-05-09T13:43:23+00:00

Use the param flag for that. Signed-off-by: Michael S. Tsirkin

ringtest: support test specific parameters

2017-05-09T13:43:23+00:00

Add a new flag for passing test-specific parameters. Signed-off-by: Michael S. Tsirkin

ringtest: fix an assert statement

2017-05-02T20:41:42+00:00

There is an || vs && typo so the assert can never be triggered. Signed-off-by: Dan Carpenter Signed-off-by: Michael S. Tsirkin Acked-by: Jason Wang

tools/virtio/ringtest: tweaks for s390

2017-01-19T21:46:32+00:00

Make ringtest work on s390 too. Signed-off-by: Halil Pasic Acked-by: Sascha Silbe Signed-off-by: Cornelia Huck

tools/virtio/ringtest: fix run-on-all.sh for offline cpus

2017-01-19T21:46:31+00:00

Since ef1b144d ("tools/virtio/ringtest: fix run-on-all.sh to work without /dev/cpu") run-on-all.sh uses seq 0 $HOST_AFFINITY as the list of ids of the CPUs to run the command on (assuming ids of online CPUs are consecutive and start from 0), where $HOST_AFFINITY is the highest CPU id in the system previously determined using lscpu. This can fail on systems with offline CPUs. Instead let's use lscpu to determine the list of online CPUs. Signed-off-by: Halil Pasic Fixes: ef1b144d ("tools/virtio/ringtest: fix run-on-all.sh to work without /dev/cpu") Reviewed-by: Sascha Silbe Signed-off-by: Cornelia Huck

ringtest: poll for new buffers once before updating event index

2016-10-30T22:21:43+00:00

Updating the event index has a memory barrier and causes more work on the other side to actually signal the event. It is unnecessary if a new buffer has already appeared on the ring, so poll once before doing the update. The effect of this on the 0.9 ring implementation is pretty much invisible, but on the new-style ring it provides a consistent 3% performance improvement. Signed-off-by: Paolo Bonzini Signed-off-by: Michael S. Tsirkin

ringtest: commonize implementation of poll_avail/poll_used

2016-10-30T22:21:43+00:00

Provide new primitives used_empty/avail_empty and build poll_avail/poll_used on top of it. Signed-off-by: Paolo Bonzini Signed-off-by: Michael S. Tsirkin

ringtest: use link-time optimization

2016-10-30T22:21:42+00:00

By using -flto and -fwhole-program, all functions from the ring implementation can be treated as static and possibly inlined. Force this to happen through the GCC flatten attribute. Signed-off-by: Paolo Bonzini Signed-off-by: Michael S. Tsirkin

ringtest: test build fix

2016-08-15T02:01:23+00:00

Recent changes to ptr_ring broke the ringtest which lacks a likely() stub. Fix it up. Fixes: 982fb490c298896d15e9323a882f34a57c11ff56 ("ptr_ring: support zero length ring") Signed-off-by: Michael S. Tsirkin

ptr_ring: support resizing multiple queues

2016-07-01T09:32:17+00:00

Sometimes, we need support resizing multiple queues at once. This is because it was not easy to recover to recover from a partial failure of multiple queues resizing. Signed-off-by: Michael S. Tsirkin Signed-off-by: Jason Wang Signed-off-by: David S. Miller