@graphprotocol/cost-model
v0.1.18
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Cost model
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Agora
The evaluation tool
The source for the evaluation tool lives under this repo at ./agora/
.
Installation
To compile and run from source:
Install Rustup
If you don't have cargo
already, install it by following the instructions here: https://www.rust-lang.org/tools/install
Compile and Run
The first step in using the tool is to compile it with cargo
.
cd ./agora
cargo build --release
The tool will be compiled to /target/release/
.
cd target/release/
./agora -h
This should print the available command-line arguments, which, at the time of this writing will look like this:
agora 0.1.0
USAGE:
agora [OPTIONS]
FLAGS:
-h, --help Prints help information
-V, --version Prints version information
OPTIONS:
-c, --cost <cost> A cost model to use for costing
--globals <globals>
--grt-per-time <grt-per-time>
-l, --load-log <load-log>... Load request log file(s) supports json and tree-buf
--sample <sample> Take a sample of the request log. Unit interval [default: 1.0]
--save-log <save-log> Save the request log file. Only tree-buf is supported
Usage
The arguments to the tool are meant to be combined to instruct agora
to accomplish tasks. What follows are just examples:
# Load two log files (from json lines format)
# Sample the logs at 10%
# Save the result as a single tree-buf file
./agora \
--load-log ./log1.jsonl \
--load-log ./log2.jsonl \
--sample 0.1 \
--save-log ./logs.treebuf
# Load the sampled/combined file
# And evaluate the effectiveness of our pricing
./agora \
--load-log ./logs.treebuf \
--globals ./globals.json \
--grt-per-time 0.0001 \
--cost ./cost-model.agora
Cost Models
Agora uses a specialized language for defining cost models that can react to changes in Query structure and parameters. See the documentation to learn about the Agora cost model language.
Copyright
Copyright © 2020 The Graph Foundation.
Licensed under the MIT license.