Új hozzászólás Aktív témák

• wwenigma Jómunkásember

  #16210

  #16209 viperabácsi

  2019-07-10 13:33:48

  Új Válasz

  Új hozzászólás

  Összes hozzászólása itt Válaszok az összes hozzászólására itt Válaszok erre a hozzászólásra

  

  wwenigma

  Jómunkásember

  #16209 viperabácsi

  AMD SenseMI [link]

  A little background is needed

AMD Ryzen processors feature AMD SenseMI technology, a sophisticated package of sensing
and adapting features that (amongst other capabilities) allow the underlying microarchitecture to
rapidly execute fine adjustments to voltage and frequency for peak performance. These changes
can occur as quickly as 1 millisecond on an AMD Ryzen CPU. However, this intended
functionality depends on the integrated power management in Ryzen being in absolute control.
After all, nothing knows the hardware better than the hardware itself!

Transitions between frequencies and voltages are governed by “P-States.” P-states are frequency/voltage
combinations requested by the operating system. Processors receive these requests all the time,
and act on them by selecting matching states built into the hardware.

The Windows-default Balanced plan, in the interest of balancing power and performance, sets higher
thresholds and longer timers for transitions into faster P-states than the High Performance plan.
This can sometimes limit how quickly our processor responds to “go faster” promptings from
high-demand applications.

Secondly, the default Balanced plan attempts to park all logical processors beyond the first 10% whenever
possible. On an 8C16T AMD Ryzen 7 1800X, for example, logical processor 0 (physical core) and logical
processor 1 (SMT core) stay awake, while the remaining 14 logical processors can be parked at any time.
Resuming from a parked state has a latency cost that can affect performance, too.

  Gondolom masodpercenkent olvassa ki de ha gyorsabban is akkor mivel processzormuvelet a kiolvasás ezert amikor beterheli mar fel is huzta az orajelet a proci.

  Siman win10 feladatkezeloben latszik hogy visszabbveszi de mint mondtam szinte semmit nem jelent az allandoan magasnak tűnő órajel mert a fogyasztásban jelent maximum 5W különbséget.

Új hozzászólás Aktív témák