* Nishanth Menon <nm@xxxxxx> [150521 00:03]: > On 05/21/2015 01:38 AM, Tero Kristo wrote: > > On 05/21/2015 01:40 AM, Paul Walmsley wrote: > >> On Tue, 19 May 2015, Tero Kristo wrote: > >> > >>> Any news on this? As noted previously, I am not able to reproduce the > >>> issue > >>> you are seeing currently, can you give DEBUG_LL a shot? > >> > >> Yeah I just bisected it, it was caused by this: > >> > >> commit cc4a5fe972ad7834e8662b49b3a5fdb597e9e15e > >> Author: Felipe Balbi <balbi@xxxxxx> > >> Date: Fri Jan 30 11:18:56 2015 -0600 > >> > >> arm: config: omap2plus_defconfig: switch over to LZMA compression > >> > >> LZMA compression makes about 33% smaller zImage > >> with just a slight extra decompression time. > >> > >> Before this patch, zImage built with o2+_dc > >> is 4.5MiB and after it's about 3.3MiB. > >> > >> Suggested-by: David Cohen <david.a.cohen@xxxxxxxxxxxxxxx> > >> Signed-off-by: Felipe Balbi <balbi@xxxxxx> > >> Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx> > >> > >> > >> and the timeouts on the testbed being set to fail if a kernel takes > >> longer > >> than five seconds to start. Seems that the part about a "slight extra > >> decompression time" probably only applies to relatively recent chips. > >> > >> > >> - Paul > >> > > > > Oh, so this explains why I was thinking it took very long time to boot > > the recent kernels also. The boot lag is clearly noticeable without any > > measurement. I wonder if we should probably revert this patch. > > we already have issues with zImage size bloating up and running headlong > into dtb - esp on platforms like N900. Felipe spend quiet some time > getting things into a manageable size here -> loosing 33% sounds like > bad idea to me :( If it affects people using the slower 34xx systems we should probably revert it though. Or make the uncompress somehow faster :) Regards, Tony -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
