Re: XEN 4.11 and 9.99.48 DOMU performance

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Tue, Mar 10, 2020 at 08:11:46PM +0100, Frank Kardel wrote:
> interrupt                             total rate type
> vmcmd kills                           17984    0 misc
> vmcmd extends                         17980    0 misc
> vmcmd calls                          185033    0 misc
> pserialize exclusive access             145    0 misc
> vmem static_bt_inuse                    200    0 misc
> vmem static_bt_count                    200    0 misc
> rndpseudo open soft                      39    0 misc
> TLB shootdown                      50603277  139 intr
> softint net/0                      33488890   92 misc
> softint bio/0                             1    0 misc
> softint clk/0                       4239404   11 misc
> softint ser/0                          2656    0 misc
> callout late/0                          199    0 misc
> crosscall unicast                        60    0 misc
> namecache entries collected          940528    2 misc
> namecache under scan target          362220    0 misc
> vcpu0 xenev0 channel 4             18112410   50 intr
> softint net/1                        564465    1 misc
> softint bio/1                             1    0 misc
> ...
> 
> softint clk/11                       385635    1 misc
> softint ser/11                          149    0 misc
> callout late/11                           1    0 misc
> vcpu0 xenev0 channel 2                  297    0 intr
> vcpu0 raw systime went backwards        158    0 intr
> vcpu0 xenev0 channel 5             36222558   99 intr
> vcpu1 xenev0 channel 6               155497    0 intr
> vcpu1 missed hardclock                   83    0 intr
> vcpu1 xenev0 channel 7             36222475   99 intr
> vcpu2 xenev0 channel 8             15438790   42 intr
> ...
> 
> xbd0 map unaligned                    96051    0 misc
> xbd1 map unaligned                  1406926    3 misc
> 
> TLB shootdown is there as some crosscall unicast. I don't see any other IPIs
> though.

Indeed it seems that in netbsd9 IPIs don't show up as such.
But there should be some crosscall broadcast. On a netbsd-9 pbulk host
I see more broadcast than unicast.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--