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.
Parameters #
limit usize optional
number of samples to return (maximum 720)
Result #
An array of RpcPerfSample<object> with the following fields:
slot: <u64>- Slot in which sample was taken atnumTransactions: <u64>- Number of transactions processed during the sample periodnumSlots: <u64>- Number of slots completed during the sample periodsamplePeriodSecs: <u16>- Number of seconds in a sample windownumNonVoteTransactions: <u64>- Number of non-vote transactions processed during the sample period.
Info
numNonVoteTransactions is present starting with v1.15. To get a number of
voting transactions compute:
numTransactions - numNonVoteTransactions
Code sample #
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 #
{
"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
}