---
title: getRecentPerformanceSamples
hideTableOfContents: true
h1: getRecentPerformanceSamples RPC Method
---

Returns a list of recent performance samples, in reverse slot order. Performance
samples are taken every 60 seconds and include the number of transactions and
slots that occur in a given time window.

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### Parameters

<Parameter name="limit" type={"usize"} optional={true}>

number of samples to return (maximum 720)

</Parameter>

### Result

An array of `RpcPerfSample<object>` with the following fields:

- `slot: <u64>` - Slot in which sample was taken at
- `numTransactions: <u64>` - Number of transactions processed during the sample
  period
- `numSlots: <u64>` - Number of slots completed during the sample period
- `samplePeriodSecs: <u16>` - Number of seconds in a sample window
- `numNonVoteTransactions: <u64>` - Number of non-vote transactions processed
  during the sample period.

<Callout type="info">
  `numNonVoteTransactions` is present starting with v1.15. To get a number of
  voting transactions compute:
  <br />
  `numTransactions - numNonVoteTransactions`
</Callout>

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### Code sample

```shell
curl https://api.devnet.solana.com -s -X POST -H "Content-Type: application/json" -d '
  {
    "jsonrpc":"2.0", "id":1,
    "method": "getRecentPerformanceSamples",
    "params": [4]
  }
'
```

### Response

```json
{
  "jsonrpc": "2.0",
  "result": [
    {
      "numSlots": 126,
      "numTransactions": 126,
      "numNonVoteTransactions": 1,
      "samplePeriodSecs": 60,
      "slot": 348125
    },
    {
      "numSlots": 126,
      "numTransactions": 126,
      "numNonVoteTransactions": 1,
      "samplePeriodSecs": 60,
      "slot": 347999
    },
    {
      "numSlots": 125,
      "numTransactions": 125,
      "numNonVoteTransactions": 0,
      "samplePeriodSecs": 60,
      "slot": 347873
    },
    {
      "numSlots": 125,
      "numTransactions": 125,
      "numNonVoteTransactions": 0,
      "samplePeriodSecs": 60,
      "slot": 347748
    }
  ],
  "id": 1
}
```

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