=== Previous ===
libvpx NEON intrinsics investigation [TCWG-429 14/10]
. if interested, you can read the report in card 429:
https://cards.linaro.org/browse/TCWG-429?focusedCommentId=22247
tested division optimisation patches against current trunk and pinged
on list [2/10]
good friday bank holiday [2/10]
=== Next ===
Resume looking at NEON scheduling TCWG-135, which ties into libvpx
Upgrade laptop to Ubuntu 14.04 LTS
== Progress ==
* GDB reverse debugging on aarch64
-- Scored through a64 instruction set details. [1/10]
-- Completed testing and implementation of all basic structures.
[TCWG-398] [1/10]
-- Started decoding aarch64 load store instructions for recording.
[TCWG-401] [2/10]
-- Completed decoding of aarch64 branch instructions. [TCWG-400] [2/10]
-- Scored through a32 instruction set and researched on a32 recording.
[2/10]
* Miscellaneous [2/10]
-- UK visa application process
-- Tools cauldron and TCWG sprint bookings etc.
-- Meetings
== Plan ==
* GDB reverse debugging on aarch64
-- Complete decoding of aarch64 load store instructions. [TCWG-401]
-- Completed decoding of aarch64 exception and system instructions.
[TCWG-400]
== Progress ==
PGO - AArch64 (TCWG-179) (4/10)
* Completed SPEC runs -O3 -mcpu=cortex-a57 in chroot + qemu
arm64-saucy with Linaro release source (4.8) march 2014.
* Built Linaro 4.9 GCC branch based tool chain under chroot + qemu arm64-saucy
* Created a PGO config file for aarch64 as a peak configure and use --tune=peak
SPEC gave warning that FDO cannot be used as base flags and will
ignore the flags.
Also setting basepeak = yes gave issues and ran base runs and
setting it to no does both base and peak runs
* Started SPEC2006 runs for PGO under chroot + qemu arm64-saucy
* Perlbench train run failed in qemu.
* Other benchmarks are progressing.
GLIBC Systemtap (2/10)
* Ran glibc make check under qemu. Seen some illegal instructions and
ntpl tests hung in qemu aarch64. Will has completed these tests in
hardware.
Misc (2/10)
* Tested cbuildv2 to build gcc natively under qemu-arm64-chroot-ubuntu-saucy.
git gave issues not able to clone and hangs when downloading
binutils and gdb repos.
* 17th was Public Holiday (2/10)
== Plan ==
* Go through the results for SPEC2006 PGO runs.
* Start functional PGO runs for SPEC2000
* Bug fixing.
== Issues ==
* Toolchain64 disk full
== Progress ==
* Linaro GCC 4.9 2014.04 (3/10)
- Created FSF Linaro 4.9 branch
- Testing FSF 4.9.0 RC
* Launchpad bugs: (3/10)
o LP #1169164 : including signal.h exposes various PSR_MODE #defines
- Two possible ways to fix the issue (to be discussed with maintainers)
* Misc:
o Cbuildv1 baby-sitting (1/10)
o Various meetings (1/10).
== Next ==
- Easter Monday off
- Continue on LP #1169164
- Linaro GCC 4.9 release (when FSF release will be made)
== Week of April 14th ==
- Benchmarked autoprefetcher patches. (TCWG-388, 2/10)
- Continued working on spec2xxx-utils scripts. These are now gaining support for AArch64 and SPEC2006. (TCWG-238, 4/10)
- Various discussions. (2/10)
- Short week due to Good Friday / Easter. (2/10)
== Week of April 21st ==
- Take Tyler B.'s LAVA test definition for SPEC benchmarking and adjust spec2xxx-utils scripts to match LAVA environment.
- Investigate regressions on gap, eon and wupwise from autoprefetcher patches.
-- SPEC2000's gap in particular is sensitive to 1st scheduling pass with register pressure, and, apparently has a 5% performance improvement potential (at -O2 Cortex-A15).
- Various discussions.
- Even shorter week due to Easter Monday and ANZAC Day on Friday. (4/10)
--
Maxim Kuvyrkov
www.linaro.org
== Progress ==
* TCWG-238 (4/10)
- Created scripts and spectools for spec2006 to work with cbuild2
* TCWG-413 Spec2006 (4/10)
- Worked out Spec2006 config and src.alt for v1.1 src we have to work
correctly
- Got it to work natively with Maxim's scripts
- Did a trail run in apm openembedded; Needs ccrypt, tar with xz
compression support and system binutils with -mabi=ilp64 support
* 18th is Public Holiday (2/10)
== Plan ==
Benchmarking and FENV support
== Progress ==
* Attempted to get qemu-aarch64 working, fails on saucy, works on
precise. Did native build, hung during 'make check'. Setup
qemu-aarch64 chroot on all TCWG x86_64 build farm
machines. (4/10)
* Tracked down problem that's kept TCWG Jenkins from
working. (1/10)
* Tried Kugan's benchmarking branch of cbuildv2. (1/10)
* More work on Neon intrinsics tests. (TCWG-322 - 1/10)
* Meetings and Misc (3/10)
- Worked on benchmarking doc with Ryan.
== Plan ==
* Get Jenkins working with matrix builds so we can utilize all LAVA
slaves.
* More experimenting with Kugan's benchmarking branch.
== Issue ==
* None.
== Progress ==
* multilib can not work with multiarch anymore, so change Linaro
crosstool-ng to make 2014.04 release (2/10).
- For 4.8 release, we will revert the change and keep it align with
previous releases.
* Linaro 4.9 toolchain binaries pre-releases (Cross & native) for
aarch64 (2/10):
http://cbuild.validation.linaro.org/binaries/4.9-prerelease-2014.04.
* Try to set up native spec2006 tests on Chromebook. But got "out of
memory" when building the tools (1/10).
* Clean up and test for shrink-wrap enhancement (TCWG-133: 2/10)
* Rebase the aarch64 fcsel patch and testing. (1/10)
* ARM internal work (2/10)
== Plans ==
* Send the shrink-wrap related patches for review.
* PING the pending patches.
== Planed leaves ==
* April 21: Team event.
* May 1-3: Labour day holiday.
== This week ==
- Resolved Launchpad bug 1305042 as user error and provided proper asm
coding [TCWG-290] [2/10]
- Investigated infinite loop bug [TCWG-290][6/10]
- Determined the infinite loop is occurring in function
vt_find_locations in the variable tracking pass
- Still debugging to determine cause of infinite loop
- Absent due to illness on April 14th
== Next week ==
Vacation
== Future ==
Getting the following cross compiling for RPi on Debian Wheezy x64 using
the gcc-linaro-arm-linux-gnueabihf-raspbian toolchain within Eclipse
Kepler. Compilation works fine using native Debian x64 GCC and native
GCC compiler on the RPi.
out of dynamic memory in yy_create_buffer()
collect2: error: ld returned 2 exit status
make: * [cwebsocket] Error 1
I'm stumped. Can't find much info on the issue. Any ideas?
