The Lenovo T450s Is Working Beautifully With Linux

[Ericg]

Test profiles aren't even PHP. Here's what build-linux-kernel does: http://openbenchmarking.org/innhold/...12fe2931f0645f

My bad, I thought all of PTS was in php. I'll flip through it today while I'm at work, see what running it by hand gets me

[dungeon]

Just reran it

Test Results:
30.589812040329
27.141097068787
27.059966087341
27.058166027069
27.104182004929
27.083301067352

Average: 27.67 Seconds


Not saying you're wrong, dungeon, cause that is rather odd, but if the test is broken then its consistently broken. That wasn't a just 'one time' fluke.

Yeah it might tried to compile but failed (or some dep is missing, etc.), and should fail to give results in that case - 27 seconds is obviously impossible to be correct for that laptop. For that result you will need 32 maybe all 40 very fast cores to gain that as this is probably 2 times faster then 20 core Xeon can do

[Michael]

Yeah it might tried to compile but failed, and should fail to give results in that case - 27 seconds is obviously impossible to be correct for that laptop. For that result you will need 32 maybe all 40 very fast cores to gain that as this is probably 2 times faster then 20 core Xeon can do

If make in the build-linux-kernel test profile returned a bad exit status, PTS does fail to deliver the results. Not sure what's happening in Eric's case.

[Ericg]

If make in the build-linux-kernel test profile returned a bad exit status, PTS does fail to deliver the results. Not sure what's happening in Eric's case.

Alright. Had a free few minutes so I went into and played around. I won't post the results because I figured out whats happening.

Fedora has ccache installed. Don't know if I accidentally pulled it in as a dep, or if it is installed by default as of F21. Michael is there anyway to force ccache into a disabled mode other than uninstalling it?

[Ericg]

For those who ARE curious. Make defconfig

[egriffith@eric-laptop linux-4.0]$ time make -s -j3
Setup is 15660 bytes (padded to 15872 bytes).
System is 5858 kB
CRC 90b7e642
Kernel: arch/x86/boot/bzImage is ready (#1)

real 6m15.358s
user 16m21.817s
sys 1m55.572s

[Michael]

Alright. Had a free few minutes so I went into and played around. I won't post the results because I figured out whats happening.

Fedora has ccache installed. Don't know if I accidentally pulled it in as a dep, or if it is installed by default as of F21. Michael is there anyway to force ccache into a disabled mode other than uninstalling it?

PTS nowhere is directly trying to use ccache nor does it attempt to install it, so not sure in particular what's happening. Where on your system is ccache installed?

[Ericg]

PTS nowhere is directly trying to use ccache nor does it attempt to install it, so not sure in particular what's happening. Where on your system is ccache installed?

Well when I did make -s -j3 originally (printed above) it was 6mins. When I tried it again (after rm'ing the dir and re-extracting) but with make -j4 it was 30seconds. So the only thing I can think of is its using ccache, which is installed.

My user's ccache cache is... "~/.ccache"

ccache's files are...

[egriffith@eric-laptop .ccache]$ locate ccache
/etc/profile.d/ccache.csh
/etc/profile.d/ccache.sh
/usr/bin/ccache
/usr/lib/python2.7/site-packages/mockbuild/plugins/ccache.py
/usr/lib/python2.7/site-packages/mockbuild/plugins/ccache.pyc
/usr/lib/python2.7/site-packages/mockbuild/plugins/ccache.pyo
/usr/lib64/ccache
/usr/lib64/ccache/c++
/usr/lib64/ccache/cc
/usr/lib64/ccache/g++
/usr/lib64/ccache/gcc
/usr/lib64/ccache/x86_64-redhat-linux-c++
/usr/lib64/ccache/x86_64-redhat-linux-g++
/usr/lib64/ccache/x86_64-redhat-linux-gcc
/usr/share/bash-completion/completions/ccache
/usr/share/doc/ccache
/usr/share/doc/ccache/AUTHORS.html
/usr/share/doc/ccache/AUTHORS.txt
/usr/share/doc/ccache/MANUAL.html
/usr/share/doc/ccache/MANUAL.txt
/usr/share/doc/ccache/NEWS.html
/usr/share/doc/ccache/NEWS.txt
/usr/share/doc/ccache/README.html
/usr/share/doc/ccache/README.txt
/usr/share/licenses/ccache
/usr/share/licenses/ccache/GPL-3.0.txt
/usr/share/licenses/ccache/LICENSE.html
/usr/share/licenses/ccache/LICENSE.txt
/usr/share/man/man1/ccache.1.gz
/var/cache/ccache
/var/lib/dnf/yumdb/c/621c4a33ef39c7207b3f0782b3105e276996006a-ccache-3.1.10-1.fc21-x86_64
/var/lib/dnf/yumdb/c/621c4a33ef39c7207b3f0782b3105e276996006a-ccache-3.1.10-1.fc21-x86_64/checksum_data
/var/lib/dnf/yumdb/c/621c4a33ef39c7207b3f0782b3105e276996006a-ccache-3.1.10-1.fc21-x86_64/checksum_type
/var/lib/dnf/yumdb/c/621c4a33ef39c7207b3f0782b3105e276996006a-ccache-3.1.10-1.fc21-x86_64/command_line
/var/lib/dnf/yumdb/c/621c4a33ef39c7207b3f0782b3105e276996006a-ccache-3.1.10-1.fc21-x86_64/from_repo
/var/lib/dnf/yumdb/c/621c4a33ef39c7207b3f0782b3105e276996006a-ccache-3.1.10-1.fc21-x86_64/installed_by
/var/lib/dnf/yumdb/c/621c4a33ef39c7207b3f0782b3105e276996006a-ccache-3.1.10-1.fc21-x86_64/reason
/var/lib/dnf/yumdb/c/621c4a33ef39c7207b3f0782b3105e276996006a-ccache-3.1.10-1.fc21-x86_64/releasever

[Michael]

Well when I did make -s -j3 originally (printed above) it was 6mins. When I tried it again (after rm'ing the dir and re-extracting) but with make -j4 it was 30seconds. So the only thing I can think of is its using ccache, which is installed.

My user's ccache cache is... "~/.ccache"

ccache's files are...

Do you have any gcc/cc symlinked to ccache? What does your $PATH look like?

[Ericg]

Do you have any gcc/cc symlinked to ccache? What does your $PATH look like?

I was about to post that before ya asked lol.

[egriffith@eric-laptop ~]$ echo $PATH
/usr/lib64/qt-3.3/bin:/usr/lib64/ccache:/bin:/usr/bin:/usr/local/bin:/usr/games/:/usr/local/sbin:/usr/sbin:/home/egriffith/.local/bin:/home/egriffith/bin


ccache is before /usr/bin, therefore the /usr/lib64/ccache/{gcc,g++,clang,etc} will all get picked before /usr/bin/{gcc,g++,clang,etc} thus silently using ccache.

[nanonyme]

I was about to post that before ya asked lol.

[egriffith@eric-laptop ~]$ echo $PATH
/usr/lib64/qt-3.3/bin:/usr/lib64/ccache:/bin:/usr/bin:/usr/local/bin:/usr/games/:/usr/local/sbin:/usr/sbin:/home/egriffith/.local/bin:/home/egriffith/bin


ccache is before /usr/bin, therefore the /usr/lib64/ccache/{gcc,g++,clang,etc} will all get picked before /usr/bin/{gcc,g++,clang,etc} thus silently using ccache.

Well, that makes a lot of sense since it's a sensible default to use ccache.