On Fri, Sep 12, 2025 at 6:35 PM Garrett Wollman <[email protected]> wrote: > > <<On Fri, 12 Sep 2025 18:29:30 -0700, Rick Macklem <[email protected]> > said: > > > Lets see, 50% of memory allocated to mbufs and 99.9% > > of physical memory allowed for the arc. > > - This reminds me of the stats CNN puts up, where the > > percentages never add up to 100. > > The point being that the ARC is supposed to respond to backpressure > long before memory runs out. And again, we're talking about a system > with 100 GiB of outright FREE physical memory. There's no possible > way that can be fully allocated in less than 5 minutes -- the NICs > aren't that fast and the servers aren't doing anything else. I don't recall you mentioning your NIC speed, but 10Gbps->about 1Gbyte/sec. That's 100sec. But you certainly could be correct.
rick > > -GAWollman >
