Messages in this thread | | | Date | Thu, 27 Jan 2011 10:35:35 +0800 | From | Xiao Guangrong <> | Subject | Re: [PATCH v3 1/3] KVM: fix rcu usage warning in kvm_arch_vcpu_ioctl_set_sregs() |
| |
On 01/20/2011 11:27 PM, Marcelo Tosatti wrote:
>> Sure :-), there is the simply test result of kernbench: >> >> Before patch: >> >> real 5m6.493s >> user 3m57.847s >> sys 9m7.115s >> >> real 5m1.750s >> user 4m0.109s >> sys 9m10.192s >> >> >> After patch: >> real 5m0.140s >> user 3m57.956s >> sys 8m58.339s >> >> real 4m56.314s >> user 4m0.303s >> sys 8m55.774s > > Nice. One disadvantageous side effect for the kvm_vcpu_kick path > is that it can race with make_all_cpus_request, which is possibly > doing unrelated, slower work (IPI'ing other vcpus, waiting for > response). > > Looks ok, but lets wait for more careful reviews before applying. >
Hi Avi, Marcelo,
I shall on vacation from 1.25 to 2.9, if you have comments on it i'll replay after coming back. :-)
| |