Fix Slog.wtf to not acquire the activity manager lock in its code
path, so that it can never deadlock. This was the original intention
of it, but part was missed.
Now we can put back in the code to detect when strict mode data is
getting large (a little more targeted now to the actual problem),
and use Slog.wtf to report it. And as a bonus, when this happens
we will now clear all of the collected violations, to avoid getting
in to the bad case where IPCs start failing. So this should be
good enough for L to fix the problem, with wtf reports for us to
see if the underlying issue is still happening.
Finally, switch a butch of stuff in the system process from Log.wtf
to Slog.wtf, since many of those are deadlocks waiting to happen.
Oh and fix a crash in the settings provider I noticed in APR.
Change-Id: I307d51b7a4db238fd1e5fe2f3f9bf1b9c6f1c041
* commit 'd092fc7076310fca5edd089df5bb5398096f6627':
Ensure that we don't show excluded tasks when we are not in that task (Bug 17657618) - Fix regression with launching an affiliated task due to clipping changes (Bug 17755902) - Tweaking previous changes to home transition - Disable the debug mode option
Added a new SLEEP_TIMEOUT setting which governs how long the device will
remain awake or dreaming without user activity. By default this
value is set to -1 which maintains today's existing behavior.
We basically represent the time we are allowed to be dreaming as a new
kind of user activity summary state called DREAM, similar to BRIGHT
and DIM. When the sleep timeout expires, the state is cleared and
the dream ends.
Bug: 17665809
Change-Id: I59aa7648dcec215f1285464fc1134934a09230e5
Avoid waking up the device on hw vol key presses during a doze
pulse. Instead, behave as if the screen was off for these keys,
namely forwarding them over to the session manager.
Bug:17672775
Change-Id: I566b93f0bdea79253ac3eca41d3876b271c61306
SettingsProvider reads secure and system settings for managed
profiles from user 0 instead. However it still checks the cache
for the managed profile not user 0.
Bug: 17736586
Change-Id: I15d44b8a5779b01e6b9032e528dc34f5c5602449
- Fix regression with launching an affiliated task due to clipping changes (Bug 17755902)
- Tweaking previous changes to home transition
- Disable the debug mode option
The motivation is an API change: FloatMath is going to be
deprecated and/or removed. Performance is not the goal of
this change.
That said...
Math is faster than FloatMath with AOT compilation.
While making the change, occurances of:
{Float}Math.sqrt(x * x + y * y) and
{Float}Math.sqrt({Float}Math.pow(x, 2) + {Float}Math.pow(y, 2))
have been replaced with:
{(float)} Math.hypot(x, y)
Right now there is no runtime intrinsic for hypot so is not faster
in all cases for AOT compilation:
Math.sqrt(x * x + y * y) is faster than Math.hypot(x, y) with
AOT, but all other combinations of FloatMath, use of pow() etc.
are slower than hypot().
hypot() has the advantage of being self documenting and
could be optimized in future. None of the behavior differences
around NaN and rounding appear to be important for the cases
looked at: they all assume results and arguments are in range
and usually the results are cast to float.
Different implementations measured on hammerhead / L:
AOT compiled:
[FloatMath.hypot(x, y)]
benchmark=Hypot_FloatMathHypot} 633.85 ns; σ=0.32 ns @ 3 trials
[FloatMath.sqrt(x*x + y*y)]
benchmark=Hypot_FloatMathSqrtMult} 684.17 ns; σ=4.83 ns @ 3 trials
[FloatMath.sqrt(FloatMath.pow(x, 2) + FloatMath.pow(y, 2))]
benchmark=Hypot_FloatMathSqrtPow} 1270.65 ns; σ=12.20 ns @ 6 trials
[(float) Math.hypot(x, y)]
benchmark=Hypot_MathHypot} 96.80 ns; σ=0.05 ns @ 3 trials
[(float) Math.sqrt(x*x + y*y)]
benchmark=Hypot_MathSqrtMult} 23.97 ns; σ=0.01 ns @ 3 trials
[(float) Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2))]
benchmark=Hypot_MathSqrtPow} 156.19 ns; σ=0.12 ns @ 3 trials
Interpreter:
benchmark=Hypot_FloatMathHypot} 1180.54 ns; σ=5.13 ns @ 3 trials
benchmark=Hypot_FloatMathSqrtMult} 1121.05 ns; σ=3.80 ns @ 3 trials
benchmark=Hypot_FloatMathSqrtPow} 3327.14 ns; σ=7.33 ns @ 3 trials
benchmark=Hypot_MathHypot} 856.57 ns; σ=1.41 ns @ 3 trials
benchmark=Hypot_MathSqrtMult} 1028.92 ns; σ=9.11 ns @ 3 trials
benchmark=Hypot_MathSqrtPow} 2539.47 ns; σ=24.44 ns @ 3 trials
Bug: https://code.google.com/p/android/issues/detail?id=36199
Change-Id: I06c91f682095e627cb547d60d936ef87941be692
If both plmn and SPN are SKTelecom, lockscreen is shown as SKTelecom-SKTelecom.
In this case, it would be better to show only SKTelecom.
Bug: 17702041
Change-Id: I268455b037752cf21a3247be7809283f50b72c27
The app is no longer useful if the underlying Network has disconnected
and could get in the way of another signing into another Network.
bug:17672087
Change-Id: I26e820444640975e7fd4dd73244f4d4f4b40cb5e
Also consolidate roaming logic while here, to make it easier to
maintain.
Bug: 17514906
Bug: 17619763
Change-Id: I8efabdecc26722ff6ac70d715f3befaae989abdc
