Delivering fast boot times in Windows 8

Re:Delivering fast boot times in Windows 8 by blinkingled on Thursday September 08, 2011 @11:57PM (#2976722)

On my X220 the Windows 7 boot is already fast even without a SSD (pre-desktop authentication and some Lenovo sauce helps) but watching the video FTA - that's mind bogglingly fast - it's more like the Mac's sleep/resume than a cold boot!

The key change seems to be a clever kernel session hibernation. They discard user sessions as those involve writing a lot of data (full hibernation) but save kernel session which can be written out and read back fairly quickly. Then there is multicore enabled resume - doesn't help with disk io but with decompression of hibernated data.

[ Parent | on HN ]

Re:Delivering fast boot times in Windows 8 by msftguy on Friday September 09, 2011 @02:06AM (#2977050)

Multicore does nothing for raw io rate, but they're using compression, and the claim seems to be that they can use higher compression levels and still be faster than an SSD (so that decompression throughput won't be a bottleneck).

[ Parent | on HN ]

Re:Delivering fast boot times in Windows 8 by justanotheratom on Friday September 09, 2011 @01:38AM (#2976987)

curious why you think multicore enabled resume would not help with disk io? Atleast on an SSD, I would think it should.

[ Parent | on HN ]

Re:Delivering fast boot times in Windows 8 by Gonsalu on Friday September 09, 2011 @06:18AM (#2977572)

If hibernation didn't use compression, there was no need for CPU involvement due to DMA. Since there would be no CPU involvement, being multi-core enabled wouldn't be of help.

[ Parent | on HN ]