On 02/09/11 09:07, Rafael J. Wysocki wrote: > On Wednesday, February 09, 2011, Mark Brown wrote: >> On Tue, Feb 08, 2011 at 03:35:29PM -0800, Frank Rowand wrote: >> >>> For 2.6.38-rc4, x86_64, CONFIG_NR_CPUS=4: >> >>> size vmlinux >>> text data bss dec hex filename >>> >>> 6553910 3555020 9994240 20103170 132c002 vmlinux with CONFIG_PM >>> 6512652 3553116 9994240 20060008 1321768 vmlinux without CONFIG_PM >>> >>> 41258 1904 0 43162 delta >> >>> That is big enough for me to care. >> >> Hrm, that's pretty surprising. It'd be interesting to know how much of >> that is due to the PM core itself and how much of that is from drivers. >> For the drivers CONFIG_PM isn't really the option they should be using >> in the first place - they mostly want some combination of PM_SLEEP and >> PM_RUNTIME for the specific functionality. I'm running some checks now. >> >>> > CONFIG_PM_SLEEP=y >> >> Raphael's patch will make this a user visible option in place of raw >> CONFIG_PM by default so you'd be able to turn that off. > > No, it won't (just to clarify). Raphael's patch will turn on CONFIG_PM in the correct circumstances, and leave it off when not needed by other config options. That means that the size overhead will _not_ be an issue for me because CONFIG_PM will not be enabled when not needed. -Frank -- To unsubscribe from this list: send the line "unsubscribe linux-embedded" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
