On Fri, 3 Jan 2014, Viresh Kumar wrote:
> On 2 January 2014 23:08, Mikulas Patocka wrote:
> > Flushing the cache and changing frequency takes approximatelly 500us. The
> > patch increases policy->cpuinfo.transition_latency to that value.
>
> Its not about how fast caches get cleaned but how mu
On 2 January 2014 23:08, Mikulas Patocka wrote:
> Flushing the cache and changing frequency takes approximatelly 500us. The
> patch increases policy->cpuinfo.transition_latency to that value.
Its not about how fast caches get cleaned but how much time would
be wasted to get them filled again as s
On Tue, 17 Dec 2013, Viresh Kumar wrote:
> On 12 December 2013 06:08, Mikulas Patocka wrote:
> > During frequency transition the processor is in "EPM Stop Grant" state.
> > The documentation says that the processor doesn't respond to inquiry
> > requests in this state. Consequently, coherency o
On 12 December 2013 06:08, Mikulas Patocka wrote:
> During frequency transition the processor is in "EPM Stop Grant" state.
> The documentation says that the processor doesn't respond to inquiry
> requests in this state. Consequently, coherency of processor caches and
> bus master devices is not m
I found out that a system with k6-3+ processor is unstable during network
server load. The system locks up or the network card stops receiving. The
reason for the instability is the CPU frequency scaling.
During frequency transition the processor is in "EPM Stop Grant" state.
The documentation say
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