[shikhar]

(Founder) Thanks for the deep questions!

1) Storage is priced on uncompressed data. We don't currently compress segments.

2) It only affects chunk storage. We do have a 'Native' chunk store in mind, the sketch involves introducing NVMe disks (as a separate service the core depends on) - so we can offer under 5 millisecond end-to-end tail latencies.

3) The append ack latency and end-to-end latency with a tailing reader is largely equivalent for us since latest writes are in memory for a brief period after acknowledgment. If you try the CLI ping command (see GIF on landing page) from the same cloud region as us (AWS us-east-1 only currently), you'll see end-to-end and append ack latency as basically the same. TTFB for older data is ~ TTFB to get a segment data range from object storage, so it can be a few hundred milliseconds.

4) We have a deadline to free chunks, so we we PUT a tiny segment if we have to.