Submit Hint Search The Forums LinksStatsPollsHeadlinesRSS
14,000 hints and counting!

Click here to return to the '10.6: How to boot into the 64-bit kernel' hint
The following comments are owned by whoever posted them. This site is not responsible for what they say.
10.6: How to boot into the 64-bit kernel
Authored by: efseiler on Mar 05, '10 07:28:24AM

As a final note...according to Wikipedia:

"K64 has several benefits compared to K32:
Can manage more than 32 GB RAM, as the memory map would consume a disproportionately large area of the 32-bit kernel space.
Cache buffer sizes can be larger than what the 32-bit kernel space allows, potentially increasing I/O performance.
Performance is increased when using high-performance networking devices or multiple GPUs, as the kernel can map all of the devices in 64-bit space even if several have very large DMA buffers.
Booting while holding down 6 and 4 will force the machine to boot K64 on machines supporting 64-bit kernels. K64 will run 32-bit applications but it will not run 32-bit kernel extensions (KEXTs) so these must be ported to K64 to be able to load."

[ Reply to This | # ]