== 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?
== Progress ==
* One bank holiday, half day childcare (3/10)
* Submit two iterations of malloc microbenchmark for glibc (4/10, TCWG-160)
* Submitted a patch for aarch64 ld bug with SystemTap notes (1/10)
* Investigated strcmp implementations for ARM (1/10, TCWG-153)
* Patch review, bugs, support, etc. (1/10)
== Issues ==
* None
== Plan ==
* malloc benchmarking/implementation work
--
Will Newton
Toolchain Working Group, Linaro
== Progress ==
TCWG-156 cortex-strings memset (3/10)
* Got a full set of benchmarks (for my 2 targets)
* Cleaned up code
* Sped up small memsets (for A9, A15 results pending)
glibc performance bug in lowlevellock.c (1/10 - I'll make a card next week)
* Learned to build and test glibc
* Understood the bug and worked out how to fix
Misc
* Meetings/mail (1/10)
* Infrastructure/workflow fiddling (1/10)
* 2 days holiday
== Plan ==
More TCWG-156
Finish off glibc performance bug
Public holidays Friday & Monday
== Week of April 7th ==
- Made a how-to wiki page/script on how to use QEMU and schroot for system emulation (TCWG-179, 2/10).
-- This allows you to get armhf or armel or aarch64 Ubuntu or Debian system within minutes, e.g., for PGO or LTO bootstraps of GCC.
-- https://collaborate.linaro.org/display/TCWG/ARM+ubuntu+chroot+with+QEMU+use…
-- I can move this page into public wiki if get enough interest from non-Linaro people.
- Fixed various bugs in instruction scheduling patch set (TCWG-388, 5/10).
- Scripted running SPEC2000 for reproducible benchmarking (TCWG-238, 3/10).
-- The scripts are now at http://git.linaro.org/toolchain/spec2xxx-utils.git
-- Scripts support both local (native) and remote (cross) benchmarking.
== Week of April 14th ==
- Document spec2xxx-utils scripts and see how they fare in LAVA environment. Add support for SPEC2006. (TCWG-238)
- Post autoprefetcher patch set upstream (TCWG-388)
--
Maxim Kuvyrkov
www.linaro.org
== Week of March 31st ==
- Investigated and scripted how to reproducibly run benchmarks (TCWG-238, 7/10)
-- Stop all services on target board
-- Use local disk
-- Stop networking
-- Bind benchmark to a specific CPU. Bind all other processes to a different CPU.
-- Disable frequency scaling.
- Various discussions (3/10)
--
Maxim Kuvyrkov
www.linaro.org
