2009/8/14 Robert Schwebel <r.schwebel@xxxxxxxxxxxxxx>:On Fri, Aug 14, 2009 at 12:19:48PM -0600, Zan Lynx wrote:
Indeed, we'll check that.That's factor 70 away from the 110 ms boot time Tim has talked about2.4s in uncompression? That seems like an obvious target for
some days ago (and he measured on an ARM cpu which had almost half
the speed of this one), and I'm wondering what we can do to improve
the boot time.
improvement.
We got rid of uncompression on a flash-based system vastly improving
boot time. The reason is that compressed kernels are faster only when
the throughput to the persistent storage is lower than the decompression
throughput, and on typical embedded systems with DMA the throughput to
memory outperforms the CPU-based decompression.