81 lines
1.9 KiB
Markdown
81 lines
1.9 KiB
Markdown
# tm-bench
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Tendermint blockchain benchmarking tool:
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- https://github.com/tendermint/tools/tree/master/tm-bench
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For example, the following:
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```
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tm-bench -T 10 -r 1000 localhost:26657
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```
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will output:
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```
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Stats Avg StdDev Max Total
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Txs/sec 818 532 1549 9000
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Blocks/sec 0.818 0.386 1 9
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```
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## Quick Start
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[Install Tendermint](../introduction/install.md)
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This currently is setup to work on tendermint's develop branch. Please ensure
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you are on that. (If not, update `tendermint` and `tmlibs` in gopkg.toml to use
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the master branch.)
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then run:
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```
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tendermint init
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tendermint node --proxy_app=kvstore
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```
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```
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tm-bench localhost:26657
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```
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with the last command being in a seperate window.
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## Usage
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```
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tm-bench [-c 1] [-T 10] [-r 1000] [-s 250] [endpoints]
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Examples:
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tm-bench localhost:26657
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Flags:
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-T int
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Exit after the specified amount of time in seconds (default 10)
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-c int
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Connections to keep open per endpoint (default 1)
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-r int
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Txs per second to send in a connection (default 1000)
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-s int
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Size per tx in bytes
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-v Verbose output
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```
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## How stats are collected
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These stats are derived by having each connection send transactions at the
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specified rate (or as close as it can get) for the specified time. After the
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specified time, it iterates over all of the blocks that were created in that
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time. The average and stddev per second are computed based off of that, by
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grouping the data by second.
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To send transactions at the specified rate in each connection, we loop
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through the number of transactions. If its too slow, the loop stops at one second.
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If its too fast, we wait until the one second mark ends. The transactions per
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second stat is computed based off of what ends up in the block.
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Each of the connections is handled via two separate goroutines.
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## Development
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```
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make get_vendor_deps
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make test
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```
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