---
name: "rdmaucma-bpfcc"
section: "8"
platform: "linux"
package: "bpfcc-tools"
version: "0.31.0+ds-7"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/rdmaucma-bpfcc"
---

# rdmaucma-bpfcc(8)

Trace RDMA Userspace Connection Manager Access Event. For Linux, uses BCC, eBPF.

## NAME

rdmaucma - Trace RDMA Userspace Connection Manager Access Event. For Linux, uses BCC, eBPF.

## SYNOPSIS

**rdmaucma \[-h\] \[-D\]**

## DESCRIPTION

This program traces RDMA UCMA(Userspace Connection Manager Access) events, This can be useful to analyze issues on RDMA CM.

Since this uses BPF, only the root user can use this tool.

## REQUIREMENTS

CONFIG\_BPF and bcc.

## OPTIONS

- \-h

  Print usage message.

- \-D

  Show debug infomation of bpf text.

## SOURCE

This is from bcc.

-

  https://github.com/iovisor/bcc

Also look in the bcc distribution for a companion \_examples.txt file containing example usage, output, and commentary for this tool.

## OS

Linux

## STABILITY

Unstable - in development.

## AUTHOR

zhenwei pi

## SEE ALSO

[rdma(8)](/rdma/8.md)