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## Usage
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Benchmark 3-member etcd cluster to get its read and write performance.
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## Instructions
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1. Start 3-member etcd cluster on 3 machines
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2. Update `$leader` and `$servers` in the script
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3. Run the script in a separate machine
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## Caveat
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1. Set environment variable `GOMAXPROCS` as the number of available cores to maximize CPU resources for both etcd member and bench process.
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2. Set the number of open files per process as 10000 for amounts of client connections for both etcd member and benchmark process.
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#!/bin/bash -e
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leader=http://10.240.201.15:4001
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# assume three servers
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servers=( http://10.240.201.15:4001 http://10.240.212.209:4001 http://10.240.95.3:4001 )
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keyarray=( 64 256 )
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for keysize in ${keyarray[@]}; do
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echo write, 1 client, $keysize key size, to leader
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./boom -m PUT -n 10 -d value=`head -c $keysize < /dev/zero | tr '\0' '\141'` -c 1 $leader/v2/keys/foo | grep -e "Requests/sec" -e "Latency" -e "90%" | tr "\n" "\t" | xargs echo
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echo write, 64 client, $keysize key size, to leader
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./boom -m PUT -n 640 -d value=`head -c $keysize < /dev/zero | tr '\0' '\141'` -c 64 $leader/v2/keys/foo | grep -e "Requests/sec" -e "Latency" -e "90%" | tr "\n" "\t" | xargs echo
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echo write, 256 client, $keysize key size, to leader
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./boom -m PUT -n 2560 -d value=`head -c $keysize < /dev/zero | tr '\0' '\141'` -c 256 $leader/v2/keys/foo | grep -e "Requests/sec" -e "Latency" -e "90%" | tr "\n" "\t" | xargs echo
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echo write, 64 client, $keysize key size, to all servers
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for i in ${servers[@]}; do
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./boom -m PUT -n 210 -d value=`head -c $keysize < /dev/zero | tr '\0' '\141'` -c 21 $i/v2/keys/foo | grep -e "Requests/sec" -e "Latency" -e "90%" | tr "\n" "\t" | xargs echo &
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done
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# wait for all booms to start running
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sleep 3
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# wait for all booms to finish
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for pid in $(pgrep 'boom'); do
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while kill -0 "$pid" 2> /dev/null; do
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sleep 3
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done
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done
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echo write, 256 client, $keysize key size, to all servers
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for i in ${servers[@]}; do
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./boom -m PUT -n 850 -d value=`head -c $keysize < /dev/zero | tr '\0' '\141'` -c 85 $i/v2/keys/foo | grep -e "Requests/sec" -e "Latency" -e "90%" | tr "\n" "\t" | xargs echo &
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done
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sleep 3
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for pid in $(pgrep 'boom'); do
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while kill -0 "$pid" 2> /dev/null; do
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sleep 3
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done
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done
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echo read, 1 client, $keysize key size, to leader
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./boom -n 100 -c 1 $leader/v2/keys/foo | grep -e "Requests/sec" -e "Latency" -e "90%" | tr "\n" "\t" | xargs echo
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echo read, 64 client, $keysize key size, to leader
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./boom -n 6400 -c 64 $leader/v2/keys/foo | grep -e "Requests/sec" -e "Latency" -e "90%" | tr "\n" "\t" | xargs echo
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echo read, 256 client, $keysize key size, to leader
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./boom -n 25600 -c 256 $leader/v2/keys/foo | grep -e "Requests/sec" -e "Latency" -e "90%" | tr "\n" "\t" | xargs echo
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echo read, 64 client, $keysize key size, to all servers
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# bench servers one by one, so it doesn't overload this benchmark machine
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# It doesn't impact correctness because read request doesn't involve peer interaction.
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for i in ${servers[@]}; do
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./boom -n 21000 -c 21 $i/v2/keys/foo | grep -e "Requests/sec" -e "Latency" -e "90%" | tr "\n" "\t" | xargs echo
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done
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echo read, 256 client, $keysize key size, to all servers
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for i in ${servers[@]}; do
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./boom -n 85000 -c 85 $i/v2/keys/foo | grep -e "Requests/sec" -e "Latency" -e "90%" | tr "\n" "\t" | xargs echo
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done
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done
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