4 ms·

BTW: What's your take on random read speed? I think with SSDs now and maybe NVRAM in the future we can address physical storage more fine granular than with HDD

BTW: What's your take on random read speed? I think with SSDs now and maybe NVRAM in the future we can address physical storage more fine granular than with HDDs and for instance with http://sirix.io http://sirix.io data is only clustered during writes (batched and synced to the flash drive) and it versions variable length in-memory and physical pages such that not every record has to be copied and written again. For instance to reconstruct a page we have to read from random places (maybe in parallel) to reconstruct a page in-memory. Thus Sirix relies on fast random read speed and on find granular access to the physical stored records.

Rafuino 7y ago
My take on random read speed? Check out this paper from Lenovo testing the performance of Optane DC Persistent Memory on their servers: https://lenovopress.com/lp1083.pdf https://lenovopress.com/lp1083.pdf. There's another good paper from a team at UCSD testing all sorts of usages and file systems with NVRAM here too: https://arxiv.org/pdf/1903.05714.pdf https://arxiv.org/pdf/1903.05714.pdf. Sirix sounds like a good fit to take advantage of App Direct access on Optane DCPM, but you're way more of an expert than me. Perhaps make a request for alpha access at GCP to test Sirix with the new tech? https://docs.google.com/forms/d/e/1FAIpQLSeX1tN6Qt-aQUK2iVVioClFX5N-061jqO46vzpHzAPHkjwzVw/viewform https://docs.google.com/forms/d/e/1FAIpQLSeX1tN6Qt-aQUK2iVVi...