getRecentPerformanceSamples

Explore getRecentPerformanceSamples: Use Cases, Code Examples, Parameters, Response Format, and Pro Tips

The getRecentPerformanceSamples RPC method delivers a time‑series snapshot of Solana’s network performance, sampling roughly every 60 seconds. Each sample records the number of transactions processed and slots produced during that interval—critical metrics for assessing throughput and network health.

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Key Use Cases

• Network Health Monitoring Track transaction rates and slot production over time to detect congestion or slowdowns.

• Performance Analysis Examine historical samples to identify trends, peak load periods, and capacity limits.

• Dashboarding & Alerts Display TPS (transactions per second) and slots‑per‑minute on monitoring dashboards or trigger alerts when performance dips.

• Capacity Planning Use sampled data to forecast resource needs for application scaling and infrastructure provisioning.

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Request Parameters

• limit (optional, usize): Number of most recent samples to return (max 720, ~12 hours of data). Omitting limit returns the provider’s default sample count.

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Response Structure

An array of performance sample objects in reverse chronological order:

Field	Type	Description
slot	u64	Slot at which this sample was recorded
numTransactions	u64	Total transactions (including votes) in the period
numSlots	u64	Slots produced during the sample interval
samplePeriodSecs	u16	Actual duration of the sample (usually ~60 seconds)
numNonVoteTransactions	u64	Transactions excluding consensus votes

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Get the Last 5 Performance Samples

{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "getRecentPerformanceSamples",
    "params": [5]
}

Get Default Number of Performance Samples

{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "getRecentPerformanceSamples"
}

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Code Examples

Nodejs

const fetch = require('node-fetch');

async function getRecentPerformanceSamples(rpcUrl) {
  try {
    const response = await fetch(rpcUrl, {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({
        jsonrpc: '2.0',
        id: 1,
        method: 'getRecentPerformanceSamples'
      }),
    });

    const data = await response.json();
    
    // Print the exact full response
    console.log('Full RPC Response:');
    console.log(JSON.stringify(data, null, 2));
    
    return data;
  } catch (error) {
    console.error('Error getting health:', error.message);
    return null;
  }
}

// Example usage
const RPC_URL = 'https://rpc.coinvera.io/?x-api-key=your-coinvera-x-api-key';

getRecentPerformanceSamples(RPC_URL);

Python

Example Response

{
  "jsonrpc": "2.0",
  "result": [
    {
      "slot": 348125,
      "numTransactions": 126,
      "numSlots": 126,
      "samplePeriodSecs": 60,
      "numNonVoteTransactions": 1
    },
    {
      "slot": 347999,
      "numTransactions": 126,
      "numSlots": 126,
      "samplePeriodSecs": 60,
      "numNonVoteTransactions": 1
    }
  ],
  "id": 1
}

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Developer Tips

• Interval Variance: Samples aim for ~60‑second intervals; check samplePeriodSecs to see the exact duration.

• Data Retention: Up to 720 samples (~12 hours). For longer-term analysis, combine with external logging.

• Vote vs. User Activity: Use numNonVoteTransactions to focus on user‑driven load apart from voting traffic.

• Node Differences: Slight variations may occur between RPC nodes based on synchronization and local timing.