I ran binutils only with -smp 1 and I get a like 180% runtime. I suspect
it's some sort of threading management issue in KVM
Go n-éirí leat,
Stuart
On Mon, Sep 23, 2013 at 4:30 PM, Bruce Dubbs wrote:
> Pierre Labastie wrote:
> > Le 23/09/2013 18:10, Bruce Dubbs a écrit :
> >
> >> On the pdf o
Bruce Dubbs wrote:
> Pierre Labastie wrote:
>> Le 23/09/2013 18:10, Bruce Dubbs a écrit :
>>
>>> On the pdf of the above, it measured KVM I/O at about 60% of the host.
>>> See pages 56-58. That seems to be consistent with my results.
>>>
>>>
>> It is really amazing, because for the SBU benchmark,
Pierre Labastie wrote:
> Le 23/09/2013 18:10, Bruce Dubbs a écrit :
>
>> On the pdf of the above, it measured KVM I/O at about 60% of the host.
>> See pages 56-58. That seems to be consistent with my results.
>>
>>
> It is really amazing, because for the SBU benchmark, I consistently get not
> mo
Le 23/09/2013 18:10, Bruce Dubbs a écrit :
> On the pdf of the above, it measured KVM I/O at about 60% of the host.
> See pages 56-58. That seems to be consistent with my results.
>
>
It is really amazing, because for the SBU benchmark, I consistently get not
more than
a 10 % increase of the
Stuart Stegall wrote:
> I use virtio with the cache set to none on KVM. I get 57s on Host (16
> threads, 64GB RAM, single SSD storage, using -j4) and 69s in a VM (4
> threads, 8GB RAM, virtio is on the same SSD formated ext2, using -j4). Not
> sure if these metrics are helpful for anyone or not,
Pierre Labastie wrote:
> 170 s on host (running Debian) and 182s on a VM under qemu
> (running (B)LFS)
>
> I do not use the virtio interface, but I have
> -drive file=/mnt/virtualMachines/qemu/blfs.qcow2,cache=writeback
>
> I do not remember now how I chose the 'cache' part.
> But I think it is wo
I use virtio with the cache set to none on KVM. I get 57s on Host (16
threads, 64GB RAM, single SSD storage, using -j4) and 69s in a VM (4
threads, 8GB RAM, virtio is on the same SSD formated ext2, using -j4). Not
sure if these metrics are helpful for anyone or not, but there you go.
Go n-éirí l
Em 23-09-2013 00:45, Bruce Dubbs escreveu:
> Walter P. Little wrote:
>> I finished an LFS 7.4 install in VMware recently (Ubuntu 12.04 LTS host)
>> and was not disappointed with the performance... Binutils clocked in at
>> roughly 75 seconds if I recall correctly. However, I'm not in a position
>>
Le 23/09/2013 03:48, Bruce Dubbs a écrit :
> For the last couple of days I've been playing around with qemu/kvm.
> I've built LFS on it from a Fedora 19 host and I'm disappointed with the
> VM performance.
>
> On my host system, LFS-7.4, I can build binutils with a SBU benchmark of
> 129 seconds.
