[ovs-build] Passed: ovsrobot/ovs#1773 (series_138723 - 2da3ac1)
builds at travis-ci.org
Fri Oct 25 16:02:25 UTC 2019
Build Update for ovsrobot/ovs
Duration: 1 hr, 4 mins, and 34 secs
Commit: 2da3ac1 (series_138723)
Author: Eelco Chaudron
Message: netdev-dpdk: add coverage counter to count vhost IRQs
When the dpdk vhost library executes an eventfd_write() call,
i.e. waking up the guest, a new callback will be called.
This patch adds the callback to count the number of
interrupts sent to the VM to track the number of times
interrupts where generated.
This might be of interest to find out system-calls were
called in the DPDK fast path.
The coverage counter is called "dpdk_vhost_irqs" and can be
$ ovs-appctl coverage/show | grep dpdk_vhost_irqs
dpdk_vhost_irqs 275880.6/sec 129962.683/sec 6561.7250/sec total: 23684319
$ ovs-appctl coverage/read-counter dpdk_vhost_irqs
Signed-off-by: Eelco Chaudron <echaudro at redhat.com>
Signed-off-by: 0-day Robot <robot at bytheb.org>
View the changeset: https://github.com/ovsrobot/ovs/compare/6b15601ad544^...2da3ac19d62c
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