From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <555D82CB.5060300@ti.com> Date: Thu, 21 May 2015 02:01:31 -0500 From: Nishanth Menon MIME-Version: 1.0 To: Tero Kristo , Paul Walmsley CC: , , , , , Subject: Re: [PATCHv2 00/27] ARM: OMAP2+: clock code migration to drivers/clk/ti References: <1431334493-24455-1-git-send-email-t-kristo@ti.com> <5551D178.3000904@ti.com> <5552F32C.7060606@ti.com> <555B8DC0.5080905@ti.com> <555D7D52.8010501@ti.com> In-Reply-To: <555D7D52.8010501@ti.com> Content-Type: text/plain; charset="windows-1252" List-ID: 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 >> 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 >> Signed-off-by: Felipe Balbi >> Signed-off-by: Tony Lindgren >> >> >> 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 :( -- Regards, Nishanth Menon