Re: linux-yocto task performance numbers

[Richard Purdie <richard.purdie@linuxfoundation.org>]

On Mon, 2015-02-23 at 00:13 -0500, Bruce Ashfield wrote:
> Was this the 3.19 kernel you used for these stats ? I just ran a quick
> test (i.e. not with buildstats) with my latest kernel tree (on my
> crappy I/O laptop) and get the following:
> 
> % time bitbake -f -c kernel_configme linux-yocto
> 
> real    0m7.378s
> user    0m4.356s
> sys     0m5.553s
> 
> 
> So I'm showing 7 seconds, versus 45 in your run .. and I'm showing:
> 
> real    0m26.371s
> user    0m12.561s
> sys     0m19.534s
> 
> For do_patch (and that is before the already in progress changes that
> I mentioned earlier).
> 
> Just with those differences alone, sounds like we should log this in
> bugzilla and put the details of the configuration and build machines in
> there .. since I'll need to isolate what is causing those extra long
> runs, and ensure that everything is pushed to the various trees.

I think I messed up and ran against a slightly different version. The
numbers confirmed with 3.19 are:

do_bundle_initramfs: Elapsed time: 0.03 seconds 
do_compile: Elapsed time: 78.07 seconds 
do_compile_kernelmodules: Elapsed time: 35.23 seconds 
do_configure: Elapsed time: 0.60 seconds 
do_deploy: Elapsed time: 14.39 seconds 
do_fetch: Elapsed time: 0.04 seconds 
do_install: Elapsed time: 2.02 seconds 
do_kernel_checkout: Elapsed time: 10.67 seconds 
do_kernel_configcheck: Elapsed time: 8.03 seconds 
do_kernel_configme: Elapsed time: 70.41 seconds 
do_kernel_link_vmlinux: Elapsed time: 0.03 seconds 
do_package: Elapsed time: 33.48 seconds 
do_packagedata: Elapsed time: 2.30 seconds 
do_package_qa: Elapsed time: 4.94 seconds 
do_package_write_ipk: Elapsed time: 68.72 seconds 
do_package_write_rpm: Elapsed time: 44.33 seconds 
do_patch: Elapsed time: 56.43 seconds 
do_populate_lic: Elapsed time: 0.14 seconds 
do_populate_sysroot: Elapsed time: 0.16 seconds 
do_shared_workdir: Elapsed time: 0.04 seconds 
do_sizecheck: Elapsed time: 0.03 seconds 
do_strip: Elapsed time: 0.03 seconds 
do_uboot_mkimage: Elapsed time: 0.02 seconds 
do_unpack: Elapsed time: 5.06 seconds 
do_validate_branches: Elapsed time: 0.69 seconds 

To get the numbers:

bitbake linux-yocto -c cleansstate
bitbake linux-yocto
$ (cd tmp/buildstats/linux-yocto-qemux86-64/201502230954/linux-yocto-3.19+gitAUTOINC+8897ef68b3_43b9eced9b-r0/; grep El * | sed s/linux-yocto-3.19+gitAUTOINC+8897ef68b3_43b9eced9b-r0// | sed s/^.*:://)

So configcheck is better but the other times still seem high.

Cheers,

Richard