Hello, I have some basic questions about telemetry API which is planned to be relaesed in 18.11.
Note that I have read the follwoing document. https://doc.dpdk.org/guides/howto/telemetry.html Q1. In general dpdk application use polling when receiving packets. So CPU usage is always looks 100% when measured using e.g. vmstat even if there is no packet receiving. (CPU is busy for polling packets) Is that correct? Q2. Is it correct understanding that dpdk application can send "any" value(or metric) to client if client requested via "telemetry" framework? Q3.Is it possible to query "real cpu usage" from dpdk application using "telemetry" framework? ("real cpu usage" I mean if 0 pakcket incoming, cpu usage indicates almost 0 %) Q4. Is it possible to inform client about fault or some trouble from dpdk application? Background I ask above is that - I am relative new to DPDK world and have almost no knowledge about "telemetry" - I am interested in how dpdk applications can "scales" on platform like OpenStack. I think some mesurement mechanism required and I thought it might be "telemetry" APIs. Thanks in advance. BR, Hideyuki Yamashita NTT TechnoCross
