On Thu, Jan 31, 2008 at 09:48:01AM -0800, Arjan van de Ven wrote: > On Thu, 31 Jan 2008 19:14:36 +0200 > Adrian Bunk <bunk@xxxxxxxxxx> wrote: > > > cpuhotplug is required for suspend/resume. > > > > Not on UP computers. > > > > great! someone who still has one of those and uses a kernel without it. > Can you look at your system.map and see how many kilobytes you've gained? > Eg how many kilobytes are in these sections exactly? I have one. A Atmel AT91 board equipped with an 9263. So lets take a look at the defconfig build for the evaluation board. o-arm/vmlinux.o: file format elf32-littlearm 0 .text 001cdefc 00000000 00000000 00000400 2**10 2 .init.text 000165e8 00000000 00000000 001ce6c0 2**5 26 .init.data 000032ec 00000000 00000000 002578cc 2**2 --- 4 .devinit.text 00001558 00000000 00000000 001e5270 2**2 9 .exit.text 00000bc8 00000000 00000000 001e8d2c 2**2 10 .cpuinit.text 00000924 00000000 00000000 001e98f4 2**2 11 .meminit.text 000004cc 00000000 00000000 001ea218 2**2 12 .devexit.text 00000160 00000000 00000000 001ea6e4 2**2 38 .cpuinit.data 00000040 00000000 00000000 0025afc0 2**2 39 .meminit.data 0000000c 00000000 00000000 0025b000 2**2 __devinit alone gives a net win of 5464 bytes. That is only ~3% of total .text size but this is non-swapable memory where everything is worth it. And the configuration selected is by no means optimal with respect to minimal size. Sam - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
