4 ms·

If you're bypassing the page cache, what invalidates the page cache so that the next read (from the filesystem) isn't stale?

• zzsheng 5mo ago
  we also use direct-io for reads.
  • jnwatson 5mo ago
    You have your own read cache then? You're nearly at the Oracle-level of writing your own filesystem at this point.
    • zzsheng 5mo ago
      we manage memory instead of relying on page cache