Date: Fri, 03 Dec 2021 21:17:49 UTC
Set it to 4k and move on. I'm not aware of any efforts in the VM layer or network stack to make >PAGE_SIZE clusters usable in practical situations. Honestly, at this point I wish that we'd just kill them entirely. On Fri, Dec 3, 2021 at 12:52 PM John Jasen <email@example.com> wrote: > > Pretty close to two years ago, we tripped across conditions where heavily > used FreeBSD 11.x packet-filter firewalls would slow to a crawl and load > would go crazy. > > In a fit of hopefulness with our upgrade to FreeBSD 13.0, I removed the > hw.cxgbe.largest_rx_cluster settings we put in place -- only to have our > hardest hit firewall experience high load and plummeting bandwidth within a > few hours. > > So, I have two questions -- is there a better fix for this? Or, is the > approach to set largest_rx_cluster to 4k and move on? > > Thanks in advance!