|
| From: | Richard Henderson |
| Subject: | Re: [Qemu-devel] [PATCH] linux-user: always start with parallel_cpus set to true |
| Date: | Wed, 4 Jan 2017 12:36:08 -0800 |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1 |
On 01/04/2017 12:22 PM, Laurent Vivier wrote:
Yes, it's a good idea, but is it really expensive to always enable the parallel_cpus flag?
It is somewhat expensive when the host does support the atomics being used; it is very expensive if the host does not. Of course the common case is x86_64 host, which does, so perhaps we don't really care.
r~
| [Prev in Thread] | Current Thread | [Next in Thread] |