perf-event-data

Parse data emitted by [perf_event_open] into usable rust structs.

Getting Started

• The Record type is an enum with every known record type.
• The parse module has what you need to parse bytes into known records.

Putting it all together, we get

```rust use perfeventdata::endian::Native; use perfeventdata::parse::{ParseConfig, Parser}; use perfeventdata::Record;

fn main() { let data: &[u8] = &[ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x16, 0x4C, 0x01, 0x00, 0x17, 0x4C, 0x01, 0x00, 0x00, 0xA0, 0x48, 0x96, 0x4F, 0x7F, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xA0, 0x48, 0x96, 0x4F, 0x7F, 0x00, 0x00, 0x2F, 0x2F, 0x61, 0x6E, 0x6F, 0x6E, 0x00, 0x00, ];

let config = ParseConfig::<Native>::default();
let mut parser = Parser::new(data, config);
let record: Record = parser.parse().expect("failed to parse the record");

// ...

} ```

See Also

• The [perf-event2] crate allows you to set up sampled perf event counters. You will likely need this, or an equivalent crate, in order to get the event data this crate parses.
• The [linux-perf-event-reader] crate provides similar functionality to this one.