Run DOCA Perftest to measure RDMA bandwidth, message rate, and latency between hosts or across a cluster. The skill helps choose point-to-point or multi-node runs, compare supported backends, and investigate inconsistent results or device errors.
Use this skill when the user is running DOCA Perftest (doca_perftest), the RDMA benchmark that measures bandwidth, message rate and latency for RDMA verbs, point-to-point or across a cluster, with an optional DOCA Verbs backend (-r dv) or GPUNetIO engine (--engine gpunetio). Trigger even when the user does not say "DOCA Perftest" — implicit phrasings include "how do I benchmark RDMA write bandwidth with DOCA", "run ib_write_bw but across 8 nodes", "perftest says the device is busy", "my latency numbers differ between client and server", "launch the server over SSH", or "run an all-to-all RDMA test from a JSON scenario". Refuse and route elsewhere for DOCA install (doca-setup), DOCA Bench (doca-bench), and application-level throughput.
Run score Not tested
See how to installReview the instructions the agent will receive before you install.
Load this skill when the user wants to — or the agent needs to — run
doca_perftest on a host with DOCA installed. Concretely:
--traffic_pattern (pair-wise, all-to-all), orchestrated over
OpenMPI / passwordless SSH.-r ibv vs -r dv) or
driving the GPUNetIO engine (--engine gpunetio).Do not load this skill for DOCA install (doca-setup), the doca-bench harness,
Flow pipeline tuning (doca-flow-tune), or application-level
throughput.
-n.--traffic_pattern, with OpenMPI.-r ibv vs -r dv.Follow the loading order below. Open TASKS.md for the commands and CAPABILITIES.md for what the tool can measure and what it does not.
Where to start: DOCA Perftest is the DOCA 3.5 replacement for legacy ib_write_bw / ib_send_lat plus the orchestration scripts used to run them on many nodes. Start at TASKS.md ## point-to-point for a first run. Use ## multi-node for scenarios and ## debug when a run fails or the numbers look wrong.
If DOCA is not installed, route to doca-setup/SKILL.md. Client and server must run the same DOCA Perftest version; check with doca-version/SKILL.md before comparing numbers across hosts. If the question is about GPU-initiated RDMA in the user's own code, route to doca-gpunetio/SKILL.md.
-d <dev> -n <server> -v write -m bw -s <size> -D <sec>; the client coordinates the server side over SSH (requires SSH key exchange set up beforehand).--traffic_pattern; the report aggregates per device, node and test.TASKS.md for the exact command for the job you are doing.CAPABILITIES.md when you need to know whether a verb, driver, memory type or traffic pattern is supported.Do not open every companion file.
doca-setup/SKILL.md.doca-version/SKILL.md.doca-hardware-safety/SKILL.md first.doca-debug/SKILL.md for the layer ladder, then the TASKS.md ## debug anchor here.ib_write_bw: this tool replaces it on DOCA 3.5; do not mix the two in one comparison without saying so.No reviews yet. Tell others what you thought.
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