QPS - queries per second
RPS - reads per second
WPS - writes per second
Peak QPS = QPS * 2 (usually)
RW - read write ratio
Message size - size of the message in bytes if not given
Read Throughput - RPS * message size = N bytes per second
Write Throughput - WPS* message size = N bytes per second
*Think about bandwidth
<aside> 💡 Throughput is how much data actually passed through and bandwidth is how much data CAN be passed through (network configuration) Ex: 1gbps network bandwidth can pass 125mb/s
</aside>
Storage - usually storage for N years
Replica storage - storage * 2-3 times
Cache storage - usually 20% of storage or so
Cache replica storage - cache storage * 2-3 times
seconds in a day - 24 * 60 * 60 = 86400, roughly 10^5
1 ASCI letter - 1 char
timestamp - 8 bytes (2^64)