On Wed, Sep 5, 2012 at 1:02 AM, Pekka Enberg <[email protected]> wrote: > > How significant is the speed gain? The "isa_done" flag makes code flow > more difficult to follow.
Not really much. when booting system: memmap=16m$128m memmap=16m$512m memmap=16m$256m memmap=16m$768m memmap=16m$1024m with the patch [ 0.000000] init_memory_mapping: [mem 0x00000000-0x07ffffff] [ 0.000000] [mem 0x00000000-0x07ffffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x09000000-0x0fffffff] [ 0.000000] [mem 0x09000000-0x0fffffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x11000000-0x1fffffff] [ 0.000000] [mem 0x11000000-0x1fffffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x21000000-0x2fffffff] [ 0.000000] [mem 0x21000000-0x2fffffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x31000000-0x3fffffff] [ 0.000000] [mem 0x31000000-0x3fffffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x41000000-0x7fffdfff] [ 0.000000] [mem 0x41000000-0x7fdfffff] page 2M [ 0.000000] [mem 0x7fe00000-0x7fffdfff] page 4k otherwise will have [ 0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff] [ 0.000000] [mem 0x00000000-0x000fffff] page 4k [ 0.000000] init_memory_mapping: [mem 0x00100000-0x07ffffff] [ 0.000000] [mem 0x00100000-0x001fffff] page 4k [ 0.000000] [mem 0x00200000-0x07ffffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x09000000-0x0fffffff] [ 0.000000] [mem 0x09000000-0x0fffffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x11000000-0x1fffffff] [ 0.000000] [mem 0x11000000-0x1fffffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x21000000-0x2fffffff] [ 0.000000] [mem 0x21000000-0x2fffffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x31000000-0x3fffffff] [ 0.000000] [mem 0x31000000-0x3fffffff] page 2M [ 0.000000] init_memory_mapping: [mem 0x41000000-0x7fffdfff] [ 0.000000] [mem 0x41000000-0x7fdfffff] page 2M [ 0.000000] [mem 0x7fe00000-0x7fffdfff] page 4k -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
