| Message ID | 20210928121134.21064-3-wangyanan55@huawei.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | qemu-options: Trivial doc fixes related to -smp | expand |
On Tue, Sep 28, 2021 at 08:11:34PM +0800, Yanan Wang wrote: > There is one numa config example in qemu-options.hx currently > using "-smp 2" and assuming that there will be 2 sockets and > 2 cpus totally. However now the actual calculation logic of > missing sockets and cores is not immutable and is considered > liable to change. Although we will get maxcpus=2 finally based > on current parser, it's always stable to specify it explicitly. > > So "-smp 2,sockets=2,maxcpus=2" will be optimal when we expect > multiple sockets and 2 cpus totally. > > Signed-off-by: Yanan Wang <wangyanan55@huawei.com> > Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com> > --- > qemu-options.hx | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Regards, Daniel
On Tue, Sep 28, 2021 at 08:11:34PM +0800, Yanan Wang wrote: > There is one numa config example in qemu-options.hx currently > using "-smp 2" and assuming that there will be 2 sockets and > 2 cpus totally. However now the actual calculation logic of > missing sockets and cores is not immutable and is considered > liable to change. Although we will get maxcpus=2 finally based > on current parser, it's always stable to specify it explicitly. > > So "-smp 2,sockets=2,maxcpus=2" will be optimal when we expect > multiple sockets and 2 cpus totally. > > Signed-off-by: Yanan Wang <wangyanan55@huawei.com> > Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com> > --- > qemu-options.hx | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/qemu-options.hx b/qemu-options.hx > index dcd9595650..ff8917c5e1 100644 > --- a/qemu-options.hx > +++ b/qemu-options.hx > @@ -395,7 +395,7 @@ SRST > -m 2G \ > -object memory-backend-ram,size=1G,id=m0 \ > -object memory-backend-ram,size=1G,id=m1 \ > - -smp 2 \ > + -smp 2,sockets=2,maxcpus=2 \ > -numa node,nodeid=0,memdev=m0 \ > -numa node,nodeid=1,memdev=m1,initiator=0 \ > -numa cpu,node-id=0,socket-id=0 \ > -- > 2.19.1 > Reviewed-by: Andrew Jones <drjones@redhat.com>
Le 28/09/2021 à 14:11, Yanan Wang a écrit : > There is one numa config example in qemu-options.hx currently > using "-smp 2" and assuming that there will be 2 sockets and > 2 cpus totally. However now the actual calculation logic of > missing sockets and cores is not immutable and is considered > liable to change. Although we will get maxcpus=2 finally based > on current parser, it's always stable to specify it explicitly. > > So "-smp 2,sockets=2,maxcpus=2" will be optimal when we expect > multiple sockets and 2 cpus totally. > > Signed-off-by: Yanan Wang <wangyanan55@huawei.com> > Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com> > --- > qemu-options.hx | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/qemu-options.hx b/qemu-options.hx > index dcd9595650..ff8917c5e1 100644 > --- a/qemu-options.hx > +++ b/qemu-options.hx > @@ -395,7 +395,7 @@ SRST > -m 2G \ > -object memory-backend-ram,size=1G,id=m0 \ > -object memory-backend-ram,size=1G,id=m1 \ > - -smp 2 \ > + -smp 2,sockets=2,maxcpus=2 \ > -numa node,nodeid=0,memdev=m0 \ > -numa node,nodeid=1,memdev=m1,initiator=0 \ > -numa cpu,node-id=0,socket-id=0 \ > Applied to my trivial-patches branch. Thanks, Laurent
diff --git a/qemu-options.hx b/qemu-options.hx index dcd9595650..ff8917c5e1 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -395,7 +395,7 @@ SRST -m 2G \ -object memory-backend-ram,size=1G,id=m0 \ -object memory-backend-ram,size=1G,id=m1 \ - -smp 2 \ + -smp 2,sockets=2,maxcpus=2 \ -numa node,nodeid=0,memdev=m0 \ -numa node,nodeid=1,memdev=m1,initiator=0 \ -numa cpu,node-id=0,socket-id=0 \