"Logging.*" is not a good name.
Also remove unused function ReportDailyUse().
BUG=chromium:508535
TEST=it compiles
Change-Id: I070bada4857abd80989ecc746adcbf1dcf6239a3
Reviewed-on: https://chromium-review.googlesource.com/284610
Tested-by: Luigi Semenzato <semenzato@chromium.org>
Reviewed-by: Sonny Rao <sonnyrao@chromium.org>
Reviewed-by: Alexei Svitkine <asvitkine@chromium.org>
Commit-Queue: Luigi Semenzato <semenzato@chromium.org>
With newer glibc versions (2.18+), these macros no longer exist (and the
functionality they protected are always enabled). Delete them.
BUG=chromium:401360
TEST=precq passes
Change-Id: I21b0607a874b9f9e39dff050054a2928a6c55023
Reviewed-on: https://chromium-review.googlesource.com/262903
Trybot-Ready: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Alex Vakulenko <avakulenko@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
The uploader should only send metrics samples when the metrics are
enabled.
The uploader daemon is still started when the metrics are disabled so
that:
* When we enable the metrics, we don't require a restart of
metrics_daemon to start uploading metrics.
* The metrics file is truncated periodically and avoid taking too much
space on long running system with metrics disabled.
BUG=chromium:459636
TEST=unittests
TEST=`test_that -b gizmo gizmo platform_MetricsUploader` works
TEST=manual: uploader does not upload metrics if metrics are disabled.
CQ-DEPEND=CL:250980
Change-Id: I9f5da3457066a183c5791b5488e985b7ab13b6e1
Reviewed-on: https://chromium-review.googlesource.com/250822
Trybot-Ready: Bertrand Simonnet <bsimonnet@chromium.org>
Tested-by: Bertrand Simonnet <bsimonnet@chromium.org>
Reviewed-by: Nathan Bullock <nathanbullock@google.com>
Commit-Queue: Bertrand Simonnet <bsimonnet@chromium.org>
The metrics uploader should only be enabled on an official build.
BUG=chromium:459105
TEST=`FEATURES=test emerge-$BOARD metrics`
TEST=Verified that metrics uploader is disabled on a developer build.
Change-Id: I5cadb3afeb56c0adac971228aa48ad56ed913bbf
Reviewed-on: https://chromium-review.googlesource.com/250542
Reviewed-by: Bertrand Simonnet <bsimonnet@chromium.org>
Commit-Queue: Ben Chan <benchan@chromium.org>
Tested-by: Ben Chan <benchan@chromium.org>
With the switch from the glib run loop to base::MessageLoop, the
interval for scheduling Meminfo callbacks was incorrectly set to
milliseconds. Fix it back to seconds.
BUG=chromium:445573
TEST=strace shows metrics_daemon sleep for 30 seconds between
collecting statistics
Change-Id: I4b4b597273d3cf04b9972011dd0a7386ea14233d
Reviewed-on: https://chromium-review.googlesource.com/238466
Reviewed-by: Chih-Chung Chang <chihchung@chromium.org>
Reviewed-by: Alex Vakulenko <avakulenko@chromium.org>
Commit-Queue: Steve Fung <stevefung@chromium.org>
Tested-by: Steve Fung <stevefung@chromium.org>
In order to remove glib, convert Metrics from the glib message loop to
DBusDaemon, which is based on base::MessageLoop. Also use the DBusDaemon's
dbus::Bus object directly to set up the CrashReporter signal handling, as
the ObjectProxy used by chromeos-dbus-bindings requires all signals be sent
from registered name owners.
BUG=chromium:431838
TEST=Unittests and hwtests pass.
TEST=`test_that -b panther <IP> platform_MetricsUploader` passes
CQ-DEPEND=CL:236652
Change-Id: I6bc1f66999a43065b0d48325b031cd36bb782b76
Reviewed-on: https://chromium-review.googlesource.com/234359
Reviewed-by: Alex Vakulenko <avakulenko@chromium.org>
Commit-Queue: Steve Fung <stevefung@chromium.org>
Tested-by: Steve Fung <stevefung@chromium.org>
metrics_uploader should use the GOOGLE_METRICS_PRODUCT_ID field from os-release
whenever possible instead of the default Chrome product id.
BUG=chromium:415744
TEST=FEATURES=test emerge-gizmo metrics succeeds.
TEST=test_that platform_MetricsUploader succeeds.
CQ-DEPEND=CL:221963
Change-Id: I69b1a6ca766048ad80d93008a2fe3b18879bf1da
Reviewed-on: https://chromium-review.googlesource.com/221953
Tested-by: Bertrand Simonnet <bsimonnet@chromium.org>
Reviewed-by: Alex Vakulenko <avakulenko@chromium.org>
Commit-Queue: Bertrand Simonnet <bsimonnet@chromium.org>
We are switching to using chromeos/flag_helper.h instead to standardize the
code everywhere.
BUG=chromium:375017
TEST=`FEATURES=test emerge-panther metrics`
TEST=`cbuildbot --remote --hwtest -p 'chromiumos/platform2'
falco-paladin` passes
Change-Id: Icd08f65fd639e82ac6fe1581c763d60a189db827
Reviewed-on: https://chromium-review.googlesource.com/221757
Reviewed-by: Bertrand Simonnet <bsimonnet@chromium.org>
Commit-Queue: Steve Fung <stevefung@chromium.org>
Tested-by: Steve Fung <stevefung@chromium.org>
metrics_uploader must be in testing mode so that it does not try to grab the
real hardware id (not available on VMs).
BUG=chromium:413256
TEST=FEATURES=test emerge-amd64-generic metrics.
TEST=platform_MetricsUploader succeeds on a gizmo VM.
Change-Id: I9e508c8661dfdb7933161b0d41ef4cf9bd7db2c6
Reviewed-on: https://chromium-review.googlesource.com/217760
Reviewed-by: Bertrand Simonnet <bsimonnet@chromium.org>
Commit-Queue: Bertrand Simonnet <bsimonnet@chromium.org>
Tested-by: Bertrand Simonnet <bsimonnet@chromium.org>
file_util.h was moved from base to base/files
(https://codereview.chromium.org/468253002). This CL updates platform2
code to include base/files/file_util.h instead of base/file_util.h.
BUG=chromium:411001
TEST=Trybot run on paladin, release, and chromiumos-sdk builders.
Change-Id: I488925b54615e131e508a460dc1a27f88168f936
Reviewed-on: https://chromium-review.googlesource.com/216851
Reviewed-by: Alex Vakulenko <avakulenko@chromium.org>
Tested-by: Ben Chan <benchan@chromium.org>
Commit-Queue: Ben Chan <benchan@chromium.org>
Replace NULL with nullptr in C++11-enabled components of platform2
that don't have too many occurrences of NULL. Other major
"offenders" will be handled separately.
BUG=None
TEST=FEATURES=test emerge-link app-shell-launcher buffet easy-unlock platform2 metrics wimax_manager
Change-Id: I61b25a057e3d6865908bc74f9f3d4cb55e08af26
Reviewed-on: https://chromium-review.googlesource.com/214837
Tested-by: Alex Vakulenko <avakulenko@chromium.org>
Reviewed-by: Ben Chan <benchan@chromium.org>
Commit-Queue: Alex Vakulenko <avakulenko@chromium.org>
This CL replaces the deprecated int* and uint* types from
'base/basictypes.h' with the int*_t and uint*_t types from 'stdint.h'.
BUG=chromium:401356
TEST=`FEATURES=test emerge-$BOARD metrics`
Change-Id: Ie5a69edba2c8a9d5185bbc548ed70a5b121c3e3b
Reviewed-on: https://chromium-review.googlesource.com/211381
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Ben Chan <benchan@chromium.org>
Commit-Queue: Ben Chan <benchan@chromium.org>
Metrics_daemon will now upload the metrics to Chrome's backend when Chrome is
not available.
This uses //components/metrics from chrome to use its protobuf definition and
the metrics common code.
This functionality is not yet enabled. It will be once the end-to-end test is
enabled.
BUG=chromium:358283, chromium:364579
TEST=FEATURES=test emerge-amd64-generic metrics
CQ-DEPEND=CL:205790
CQ-DEPEND=CL:206055
Change-Id: I87aaf7a2ac041581fa3ffd4ec61f73e933c00a52
Reviewed-on: https://chromium-review.googlesource.com/205810
Reviewed-by: Bertrand Simonnet <bsimonnet@chromium.org>
Tested-by: Bertrand Simonnet <bsimonnet@chromium.org>
Reviewed-by: Luigi Semenzato <semenzato@chromium.org>
Commit-Queue: Bertrand Simonnet <bsimonnet@chromium.org>
The only real change is in ReadFileToUint64. The other changes
appease the updated pre-commit checks.
BUG=chromium:390334
TEST=ran manually, checked syslog, checked chrome://histograms
Change-Id: I5ca10aab03697aa8fd64c5dd51ca64911e8d2a76
Reviewed-on: https://chromium-review.googlesource.com/206285
Tested-by: Luigi Semenzato <semenzato@chromium.org>
Reviewed-by: Daniel Erat <derat@chromium.org>
Commit-Queue: Luigi Semenzato <semenzato@chromium.org>
Memory compression stats are being collected by Chrome, but it
is more natural to do it here since they are system-wide rather than
Chrome-specific.
In addition, this provides better granularity for the compression ratio
(percents, from 100% to 600%) since we're especially interested in the
distribution of values between 1 and 2, and currently these all fall
in the same bucket.
Finally, we collect more interesting stats on zero pages.
BUG=chromium:315113
TEST=unit testing, checked about:histograms
Change-Id: I09c974989661d42f45d44afd428e8114e4ee1dbd
Reviewed-on: https://chromium-review.googlesource.com/202587
Reviewed-by: Luigi Semenzato <semenzato@chromium.org>
Commit-Queue: Luigi Semenzato <semenzato@chromium.org>
Tested-by: Luigi Semenzato <semenzato@chromium.org>
HANDLE_EINTR is both not safe and not useful on Linux systems.
Switch to IGNORE_EINTR like Chromium has done everywhere.
See http://crbug.com/269623 for details.
BUG=chromium:373154
TEST=`cbuildbot {arm,amd64,x86}-generic-full` passes
Change-Id: I3d99bb2376cb7961ac31ba0fa82bafc1b4c14bd9
Reviewed-on: https://chromium-review.googlesource.com/199821
Reviewed-by: Daniel Erat <derat@chromium.org>
Reviewed-by: Luigi Semenzato <semenzato@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Maintain separate persistent values for DailyActiveUse and
CumulativeActiveUse. The latter is used to compute crash rates
relative to active use.
BUG=chromium:364746
TEST=manual
Change-Id: I4d0485016eb49b30a77169ba1cedc1ffbff8810e
Reviewed-on: https://chromium-review.googlesource.com/195698
Reviewed-by: Daniel Erat <derat@chromium.org>
Reviewed-by: Luigi Semenzato <semenzato@chromium.org>
Tested-by: Luigi Semenzato <semenzato@chromium.org>
Commit-Queue: Luigi Semenzato <semenzato@chromium.org>
Also log to stderr when not running as daemon.
BUG=chromium:364700
TEST=manually verified in both daemon and non-daemon modes
Change-Id: If62f70c1d327a5ecaf3075b6689b83a1494c09d5
Reviewed-on: https://chromium-review.googlesource.com/199380
Tested-by: Luigi Semenzato <semenzato@chromium.org>
Reviewed-by: Daniel Erat <derat@chromium.org>
Commit-Queue: Luigi Semenzato <semenzato@chromium.org>
Stop listening for the soon-to-deleted PowerStateChanged
D-Bus signal from powerd; the code that was listening for
it had some issues (there was no guarantee that it'd run
before the system suspended, and resumes weren't handled at
all).
Also remove the session-state- and screen-lock-handling
code; it provided an inaccurate view of user activity (what
if the user is listening to music with the screen locked or
if they don't have screen-locking enabled?).
Track uptime instead via a timer that fires every five
minutes.
BUG=chromium:359619
TEST=manual: ran metrics_daemon --nodaemon and watched the
logs
Change-Id: I4ad74773daefa01afdea080d20001ff1944c2eee
Reviewed-on: https://chromium-review.googlesource.com/195491
Reviewed-by: Daniel Erat <derat@chromium.org>
Commit-Queue: Daniel Erat <derat@chromium.org>
Tested-by: Daniel Erat <derat@chromium.org>
This had been lost in the previous changes. Also, the meaning
of DailyUse changes: it is now cumulative daily use. But we should
revise these stats so I think it's OK for now.
BUG=chromium:339588
TEST=unit tests
Change-Id: I4894fef0ffb237633abcf949c01dd7ea5f5e5d6e
Reviewed-on: https://chromium-review.googlesource.com/195005
Reviewed-by: Daniel Erat <derat@chromium.org>
Tested-by: Luigi Semenzato <semenzato@chromium.org>
Commit-Queue: Luigi Semenzato <semenzato@chromium.org>
Adds a few kernel crash stats which are reported daily but
are accumulated from beginning to end of a Chrome OS version.
BUG=chromium:339588
TEST=ran and checked histograms on device
BRANCH=none
Change-Id: I630c673156c28dc90ffe0c9c2df58caaada082dc
Reviewed-on: https://chromium-review.googlesource.com/190404
Reviewed-by: Luigi Semenzato <semenzato@chromium.org>
Commit-Queue: Luigi Semenzato <semenzato@chromium.org>
Tested-by: Luigi Semenzato <semenzato@chromium.org>
The metrics daemon had counter classes that represented
persistent, tagged values, and UMA stats. To create some
derived UMA stats we need to separate persistency and UMA stats,
and the tagging doesn't help either.
This rewrite is supposed to keep the same functionality.
BUG=chromium:339588
TEST=ran and checked a few histograms
BRANCH=none
Change-Id: Ia1121ab2db391d71edffab9f52afe29ce17686ba
Reviewed-on: https://chromium-review.googlesource.com/188082
Tested-by: Luigi Semenzato <semenzato@chromium.org>
Reviewed-by: Luigi Semenzato <semenzato@chromium.org>
Commit-Queue: Luigi Semenzato <semenzato@chromium.org>
This adds counters that accumulate some measurement across an OS version;
they are reset at version updates, but reported more frequently (for instance,
daily).
Such counts could be obtained by pseudonymous dremel queries, but this is
more convenient.
The code replaces the "tag" datum in the counters with two tags: a
"report tag" and a "reset tag". When the report
tag changes, the count is reported but not reset. When the reset tag
changes, the count is both reported and reset.
This also adds one usage of the new counter which tracks the total
number of kernel crashes since the most recent OS version update.
The state machine in counter.cc changes a bit because it's no longer
true that a counter is reset after reporting it. That logic is
still rather confusing, and could use a rewrite.
BUG=chromium:339588
TEST=ran on target under various situations
BRANCH=none
Change-Id: I5f83731e1a3d6e055b6d0f89111c9ffc60ccfcb9
Reviewed-on: https://chromium-review.googlesource.com/185081
Reviewed-by: Daniel Erat <derat@chromium.org>
Commit-Queue: Luigi Semenzato <semenzato@chromium.org>
Tested-by: Luigi Semenzato <semenzato@chromium.org>
For security reasons, we changed the location of some flag
files to /var/run from /tmp, but we didn't update this
program to look for the files in their new location.
This corrects the problem.
BUG=chromium:200181
TEST=manually verified that kernel crash counters increase
BRANCH=none
Change-Id: I03efe6179a1ad8dfd4c8cbb1eccf24c7a8494058
Reviewed-on: https://chromium-review.googlesource.com/186692
Reviewed-by: Chris Masone <cmasone@chromium.org>
Commit-Queue: Luigi Semenzato <semenzato@chromium.org>
Tested-by: Luigi Semenzato <semenzato@chromium.org>
This CL updates metrics to build against libchrome-242728 and also converts
libmetrics into slotted libraries (libmetrics-180609 and libmetrics-242728).
BUG=chromium:341521
BUG=chromium:342866
CQ-DEPEND=CL:186027
CQ-DEPEND=CL:186026
CQ-DEPEND=CL:186037
CQ-DEPEND=CL:186092
CQ-DEPEND=CL:186028
CQ-DEPEND=CL:186029
CQ-DEPEND=CL:186038
CQ-DEPEND=CL:186093
CQ-DEPEND=CL:186100
CQ-DEPEND=CL:186039
TEST=Trybot run on paladin, release, and chromiumos-sdk builders.
Change-Id: I09dc3d47cfe24a22864abf217658c63493b35cba
Reviewed-on: https://chromium-review.googlesource.com/185187
Reviewed-by: Ben Chan <benchan@chromium.org>
Tested-by: Ben Chan <benchan@chromium.org>
Commit-Queue: Ben Chan <benchan@chromium.org>
There was an out-of-bound index after something like 7.5 hours of
active use. This probably caused the metrics daemon to restart
and pollute some of the memuse statistics, the very ones
responsible for the overflow.
BUG=chromium:326824
TEST=ran manually and verified memuse is still reported
Change-Id: I70709f8cbba63ea1ca5e277b2ab58729e072e127
Reviewed-on: https://chromium-review.googlesource.com/178976
Reviewed-by: Luigi Semenzato <semenzato@chromium.org>
Commit-Queue: Luigi Semenzato <semenzato@chromium.org>
Tested-by: Luigi Semenzato <semenzato@chromium.org>
This fix the problem that the subscript of a global
array overflows in some cases.
BUG=chromium:326284
TEST=Unittest and suite:smoke passes.
Change-Id: I6a19d3bb18a886ee8a29b9a4df5f2b136ce57c5c
Reviewed-on: https://chromium-review.googlesource.com/178973
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Yunlian Jiang <yunlian@chromium.org>
Tested-by: Yunlian Jiang <yunlian@chromium.org>
This adds swap-in and swap-out rate calculation on the same intervals
as major page fault collection.
BUG=chromium:261965
TEST=observe Platform.SwapIn{Long,Short} and
Platform.SwapOut{Long,Short} appear in histograms
Change-Id: Ifcdba1088cdff355b8e132145ac79635b185663b
Reviewed-on: https://gerrit.chromium.org/gerrit/64162
Reviewed-by: Luigi Semenzato <semenzato@chromium.org>
Commit-Queue: Sonny Rao <sonnyrao@chromium.org>
Tested-by: Sonny Rao <sonnyrao@chromium.org>
g_thread_init() has been deprecated since glib 2.32. This CL removes the
unnecessary call to g_thread_init(), so that we can later migrate to
glib 2.34. It also replaces dbus_g_thread_init(), which calls the
deprecated g_thread_supported(), with dbus_threads_init_default()
directly.
BUG=chromium:253025
TEST=Tested the following:
1. Build and run unit tests.
2. chrome://histograms shows that CrOS metrics are being collected.
Change-Id: I9c191d1926928caa8a704db03024f48f6c1cb383
Reviewed-on: https://gerrit.chromium.org/gerrit/59683
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Ben Chan <benchan@chromium.org>
Commit-Queue: Ben Chan <benchan@chromium.org>
This bug was introduced while adding test code
which was supposed to improve the reliability
of this program.
BUG=chromium:238890
TEST=verified that about:histograms contains samples
Change-Id: I66323292f9261f5715760d7c884f91aca1f7e453
Reviewed-on: https://gerrit.chromium.org/gerrit/57501
Reviewed-by: Sonny Rao <sonnyrao@chromium.org>
Tested-by: Luigi Semenzato <semenzato@chromium.org>
Commit-Queue: Luigi Semenzato <semenzato@chromium.org>
This collects the max frequency every 30s and reports
it as a percentage of the unthrottled frequency.
The special value of 101% indicates that the CPU is
using turbo.
BUG=chromium:238890
TEST=ran manually, checked about:histograms
Change-Id: Ia1c8a2344b81b8274f9045b854d2e6d35cf49339
Reviewed-on: https://gerrit.chromium.org/gerrit/50387
Reviewed-by: Darin Petkov <petkov@chromium.org>
Commit-Queue: Luigi Semenzato <semenzato@chromium.org>
Tested-by: Luigi Semenzato <semenzato@chromium.org>
This should fix a pretty broken DailyUseTime metric. Also, use
contstants from service_constants.h where available.
BUG=chromium:216382,chromium:234799
TEST=unit tests; stop metrics_daemon on the device, then ran metrics_daemon
--nodaemon and inspected console log output while logging in/out as well as on
suspend/resume.
CQ-DEPEND=Ibfcc54c8dbf145cccd5ef871c7c9701b8312eb9e
Change-Id: I69ca0ea9594a496453f0933147ec66b0fa334718
Reviewed-on: https://gerrit.chromium.org/gerrit/49468
Tested-by: Darin Petkov <petkov@chromium.org>
Reviewed-by: Chris Masone <cmasone@chromium.org>
Commit-Queue: Darin Petkov <petkov@chromium.org>
We need to record the amount of swap used, and correlate it
with the total amount of swap.
The metrics added are Platform.MeminfoSwapUsed and
Platform.MeminfoSwapUsedPercent.
BUG=chromium-os:38583
TEST=not really
BRANCH=none
Change-Id: Iaf26c917e3c4d23f3f58f436047f8dd165177960
Reviewed-on: https://gerrit.chromium.org/gerrit/43123
Tested-by: Luigi Semenzato <semenzato@chromium.org>
Reviewed-by: Sonny Rao <sonnyrao@chromium.org>
Commit-Queue: Luigi Semenzato <semenzato@chromium.org>
The current metrics don't show how much swap we're using at a given
time. We only have indirect measures (page faults rate for instance).
We also need to add one type of histogram scale, since compressed swap
can exceed total RAM, and all current histograms are on a scale from
zero to total RAM.
BUG=chromium-os:38583
TEST=stared at the code really hard and compiled it
BRANCH=none
Change-Id: Icb9dce5efe5dbd78123aad51ffd369cb46721096
Reviewed-on: https://gerrit.chromium.org/gerrit/42598
Reviewed-by: Sonny Rao <sonnyrao@chromium.org>
Commit-Queue: Luigi Semenzato <semenzato@chromium.org>
Tested-by: Luigi Semenzato <semenzato@chromium.org>
This code uses StringPrintf, but doesn't include the header. Older
versions of libbase would implicitly include it, but newer ones do
not. So include it ourselves to fix building with newer versions.
BUG=chromium-os:25872
TEST=`emerge-x86-alex metrics` works (with newer and older libbase)
Change-Id: I7859f67767958f70853a40e8df4a33a64b36d010
Reviewed-on: https://gerrit.chromium.org/gerrit/17487
Reviewed-by: Darin Petkov <petkov@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Ready: Mike Frysinger <vapier@chromium.org>
This changes adds memory usage stats after 1 5, 30, 150, and 750
minutes of active use (approximated by wall
clock time minus sleep time). We log only the anonymous memory
usage (active + inactive) as we expect that other types of
allocations would not convey much additional information.
This also fixes the disk I/O computation to use actual active
time elapsed between callbacks, instead of assuming the expected
interval has elapsed. The existing code causes errors in
both directions when a suspend/resume cycle occurs between callbacks.
BUG=14209
TEST=verify that about:histograms page contains Platform.MemuseAnon1 after 1 minute and Platform.MemuseAnon2 after 5 minutes.
Change-Id: Ib32d915fac7766a9fca7125105224889ea93050e
Reviewed-on: http://gerrit.chromium.org/gerrit/1132
Reviewed-by: Darin Petkov <petkov@chromium.org>
Tested-by: Luigi Semenzato <semenzato@chromium.org>
Change-Id: Ief779a5bdc68b8e5bf2f1ed979bf30b50aca8e0f
BUG=chromium-os:13747
TEST=verify that Platform.Meminfo* entries are in about:histograms.
Review URL: http://codereview.chromium.org/6804014
Change-Id: Id30f4b7e5d121f2632592ebacf47a18ea1d89fec
BUG=chromium-os:12171
TEST=ran on target and observed that stats are generated
Review URL: http://codereview.chromium.org/6486021
Now that flimflam has native support this can be purged.
TEST=run FEATURES=test emerge-x86-generic metrics; verify TimeToDrop is still being recorded w/ about:histograms/Network
Review URL: http://codereview.chromium.org/3233004
Also, initialize the network state from flimflam, just in case -- now
that the metrics daemon process starts a bit late,
BUG=none
TEST=unit tests, ran on the device, emerged arm-generic
Review URL: http://codereview.chromium.org/2864009