---
layout: api
page_title: /sys/pprof - HTTP API
description: The `/sys/pprof` endpoint is used to query profiling information.
---

# `/sys/pprof`

The `/sys/pprof` endpoint is used to query. The response returned by
these endpoints are equivalent to those returned by the `http/pprof`
package.

## Index

This endpoint returns an HTML page listing the available profiles.

| Method | Path          |
| :----- | :------------ |
| `GET`  | `/sys/pprof/` |

### Sample Request

```shell-session
$ curl \
    --header "X-Vault-Token: ..." \
    http://127.0.0.1:8200/v1/sys/pprof/
```

## Allocs

This endpoint returns a sampling of historical memory allocations over the life
of the program.

| Method | Path              |
| :----- | :---------------- |
| `GET`  | `/sys/pprof/allocs` |

### Sample Request

```shell-session
$ curl \
    --header "X-Vault-Token: ..." \
    http://127.0.0.1:8200/v1/sys/pprof/allocs
```

## Block

This endpoint returns a sampling of goroutines involved in blocking on
synchronization primitives.

It is included for completeness, but since Vault doesn't normally enable
collection of this data, it won't return anything useful with the standard
Vault binary.

| Method | Path              |
| :----- | :---------------- |
| `GET`  | `/sys/pprof/block` |

### Sample Request

```shell-session
$ curl \
    --header "X-Vault-Token: ..." \
    http://127.0.0.1:8200/v1/sys/pprof/block
```

## Cmdline

This endpoint returns the running program's command line, with arguments
separated by NUL bytes.

| Method | Path                 |
| :----- | :------------------- |
| `GET`  | `/sys/pprof/cmdline` |

### Sample Request

```shell-session
$ curl \
    --header "X-Vault-Token: ..." \
    http://127.0.0.1:8200/v1/sys/pprof/cmdline
```

## Goroutine

This endpoint returns stack traces of all current goroutines.

| Method | Path                   |
| :----- | :--------------------- |
| `GET`  | `/sys/pprof/goroutine` |

### Parameters

- `debug` `(int: 0)` - Specifies special arguments for the collection.
A value of `2` results in the stack traces being returned as text
instead of the default pprof format.

### Sample Request

```shell-session
$ curl \
    --header "X-Vault-Token: ..." \
    http://127.0.0.1:8200/v1/sys/pprof/goroutine
```

## Heap

This endpoint returns a sampling of memory allocations of live object.

| Method | Path              |
| :----- | :---------------- |
| `GET`  | `/sys/pprof/heap` |

### Sample Request

```shell-session
$ curl \
    --header "X-Vault-Token: ..." \
    http://127.0.0.1:8200/v1/sys/pprof/heap
```

## Mutex

This endpoint returns a sampling of goroutines holding contended mutexes.

It is included for completeness, but since Vault doesn't normally enable
collection of this data, it won't return anything useful with the standard
Vault binary.

| Method | Path              |
| :----- | :---------------- |
| `GET`  | `/sys/pprof/mutex` |

### Sample Request

```shell-session
$ curl \
    --header "X-Vault-Token: ..." \
    http://127.0.0.1:8200/v1/sys/pprof/mutex
```

## Profile

This endpoint returns a pprof-formatted cpu profile payload. Profiling
lasts for duration specified in seconds GET parameter, or for 30 seconds
if not specified.

| Method | Path                 |
| :----- | :------------------- |
| `GET`  | `/sys/pprof/profile` |

### Parameters

- `seconds` `(int: 30)` - Specifies the duration to run the profiling
  command. This value is specified as a query parameter.

### Sample Request

```shell-session
$ curl \
    --header "X-Vault-Token: ..." \
    http://127.0.0.1:8200/v1/sys/pprof/profile
```

## Symbol

This endpoint returns the program counters listed in the request.

| Method | Path                |
| :----- | :------------------ |
| `GET`  | `/sys/pprof/symbol` |

### Sample Request

```shell-session
$ curl \
    --header "X-Vault-Token: ..." \
    http://127.0.0.1:8200/v1/sys/pprof/symbol
```

## Threadcreate

This endpoint returns stack traces of goroutines that led to the creation of
new OS threads.

| Method | Path                   |
| :----- | :--------------------- |
| `GET`  | `/sys/pprof/threadcreate` |

### Sample Request

```shell-session
$ curl \
    --header "X-Vault-Token: ..." \
    http://127.0.0.1:8200/v1/sys/pprof/threadcreate
```


## Trace

This endpoint returns the execution trace in binary form. Tracing lasts
for duration specified in seconds GET parameter, or for 1 second if not
specified.

| Method | Path               |
| :----- | :----------------- |
| `GET`  | `/sys/pprof/trace` |

### Parameters

- `seconds` `(int: 1)` - Specifies the duration to run the tracing
  command. This value is specified as a query parameter.

### Sample Request

```shell-session
$ curl \
    --header "X-Vault-Token: ..." \
    http://127.0.0.1:8200/v1/sys/pprof/trace
```