https://github.com/cppcoffee/c-oncpu
perf event process
https://github.com/cppcoffee/c-oncpu
aya aya-ebpf ebpf rust
Last synced: about 1 month ago
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perf event process
- Host: GitHub
- URL: https://github.com/cppcoffee/c-oncpu
- Owner: cppcoffee
- Created: 2024-12-14T06:01:22.000Z (over 1 year ago)
- Default Branch: main
- Last Pushed: 2024-12-14T06:12:35.000Z (over 1 year ago)
- Last Synced: 2025-04-02T13:24:24.032Z (about 1 year ago)
- Topics: aya, aya-ebpf, ebpf, rust
- Language: Rust
- Homepage:
- Size: 16.6 KB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# c-oncpu
## Prerequisites
1. stable rust toolchains: `rustup toolchain install stable`
1. nightly rust toolchains: `rustup toolchain install nightly --component rust-src`
1. (if cross-compiling) rustup target: `rustup target add ${ARCH}-unknown-linux-musl`
1. (if cross-compiling) LLVM: (e.g.) `brew install llvm` (on macOS)
1. (if cross-compiling) C toolchain: (e.g.) [`brew install filosottile/musl-cross/musl-cross`](https://github.com/FiloSottile/homebrew-musl-cross) (on macOS)
1. bpf-linker: `cargo install bpf-linker` (`--no-default-features` on macOS)
## Build
```shell
$ AYA_BUILD_EBPF=true cargo build --release
```
or
```shell
$ make
```
## Cross-compiling on macOS
Cross compilation should work on both Intel and Apple Silicon Macs.
```shell
CC=${ARCH}-linux-musl-gcc cargo build --package c-oncpu --release \
--target=${ARCH}-unknown-linux-musl \
--config=target.${ARCH}-unknown-linux-musl.linker=\"${ARCH}-linux-musl-gcc\"
```
The cross-compiled program `target/${ARCH}-unknown-linux-musl/release/c-oncpu` can be
copied to a Linux server or VM and run there.
## Usage
```shell
Usage: c-oncpu [OPTIONS] --pid
Options:
-p, --pid pid of the process
-t, --timeout timeout in seconds [default: 30]
-o, --output output file [default: /tmp/output.out]
-v, --verbose verbose mode
-k, --kernel-threads-only Kernel threads only (no user threads)
-f, --frequency sample frequency [default: 1000]
-h, --help Print help
```
### Example:
```shell
# ./target/release/c-oncpu --pid 58102
```
Generating flame graphs:
```shell
# ./FlameGraph/flamegraph.pl /tmp/output.out > /tmp/1.svg
```