On Fri, Oct 12, 2018 at 07:40:04PM +0000, Vineet Gupta wrote: > Very nice. Thx for doing this. > > Once you have redone this, please point me to a branch so I can give this a spin. > I've always been interested in tracking down / optimizing the full TLB flushes - > which ARC implements by simply moving the MMU/process to a new ASID (TLB entries > tagged with an 8 bit value - unique per process). When I started looking into this > , a simple ls (fork+execve) would increment the ASID by 13 which I'd optimized to > a reasonable 4. Haven't checked that in recent times though so would be fun to > revive that measurement. I just pushed out the latest version to: git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git mm/tlb (mandatory caution: that tree is unstable / throw-away) I'll wait a few days to see what, if anything, comes back from 0day before posting again.
