Trent W. Buck wrote:
Rohan McLeod wrote:
I'm seeing SATA-SSD with read/ write transfer rates at about 500MB/sec eg http://www.sandisk.com.au/products/ssd/sata/
whereas the PCI-e SSD seem to have read/ write transfer rate at about 1000MB/sec eg
http://techau.com.au/review-revodrive-240gb-pci-e-ssd-vs-ocz-agility-3-240gb... so I could expect a boot time of about 3.5 secs in the above case ? Run bootchart2 / pybootchartgui.
...............snip
Don't forget that these are timing only from when the kernel starts executing, meaning that EFI POST and the bootloader both have to run first. And EFI (and the AHCI driver or proprietary RAID card, and the whole LOM BNC) take for-fucking-ever to boot -- and they're reading from ROMs, so a faster SSD won't help there at all :-/ Many thanks Trent; too much time watching Top Gear....brmm ...brmmm (read any time !); yes now that my plans for world domination, after acquiring a PCI-e SSD have been put on hold : - [ ; boot time obviously has significant over-heads unrelated to 'disk' I/O. Still in the future when topological quantum processors have reduced instruction execution time to effectively zero; do you think ROM, 'disk' and RAM I/O; may remain the significant constraints ?
regards Rohan McLeod