There are three major classes of changes here:
- Avoid writing lines where their values are often empty, false, or some other typical thing.
- Use partial writes to the PrintWriter to avoid creating temporary strings.
- Use StringBuilder where we need to generate real String objects (and where possible cache the result).
The 50 methods that appeared on the GC stacks of the most applications
require 13KB of native heap for their uncompressed register maps, and
the full set took 5ms to uncompress. Pre-computation doesn't represent
a significant improvement in space or time, at the cost of a big pile
of strings in ZygoteInit.
I'm leaving the method in ZygoteInit, but it's not called, and the
static final String[] of method descriptors is empty. We may want to
revisit this later.
BUG=1729570
Automated import of CL 144931
The usage stats service now collects per-activity launch time stats. There are a number of fixes and improvements to its statistics management and collection; it now operates its calendar in GMT and ensures that for checkin purposes it always reports one day and only one complete day to the checkin service.
Also change the checkin option from "-c" to "--checkin" since it is really a special thing.
2 levels as recorded at plug and unplug events. During charge cycles this would be useful because it would tell us
what the start and end levels were in the last discharge cycle. However during a discharge cycle this information could
be misleading as it would give you the level at the last unplug event (beginning the the discharge cycle) and last plug
event (end of the previous discharge cycle).
Now we are still keeping track of 2 values, but they are "discharge cycle start level" and "discharge cycle current level".
During a discharge cycle this will give you the level the current discharge cycle started at, and the current level. During
a charge cycle the same data will be supplied as before (the start/end of the last discharge cycle).
Original author: emillar
Automated import of CL 144410
2 levels as recorded at plug and unplug events. During charge cycles this would be useful because it would tell us
what the start and end levels were in the last discharge cycle. However during a discharge cycle this information could
be misleading as it would give you the level at the last unplug event (beginning the the discharge cycle) and last plug
event (end of the previous discharge cycle).
Now we are still keeping track of 2 values, but they are "discharge cycle start level" and "discharge cycle current level".
During a discharge cycle this will give you the level the current discharge cycle started at, and the current level. During
a charge cycle the same data will be supplied as before (the start/end of the last discharge cycle).
B=144249
Automated import of CL 144333
- We define HttpRequest and HttpResponse protocol buffers.
The RMQ mechanism is *not* used for these (though the
messages define rmq id fields in case we want to start).
- GTalkHttpClient will send an http request over the
connection to MCS if:
- gtalk_tunnel_http in gservices is turned on
- the request destination is the android proxy
- it can make a connection to gtalkservice
The request falls back to using GoogleHttpClient if it can't
be processed over the MCS connection.
A few shortcuts are taken with cookie handling, but these
are okay for the envisioned usage.
Original author: dougz
Merged from: //branches/donutburger/...
Automated import of CL 144094
- We define HttpRequest and HttpResponse protocol buffers.
The RMQ mechanism is *not* used for these (though the
messages define rmq id fields in case we want to start).
- GTalkHttpClient will send an http request over the
connection to MCS if:
- gtalk_tunnel_http in gservices is turned on
- the request destination is the android proxy
- it can make a connection to gtalkservice
The request falls back to using GoogleHttpClient if it can't
be processed over the MCS connection.
A few shortcuts are taken with cookie handling, but these
are okay for the envisioned usage.
Automated import of CL 144044
Adds stats for:
- Number of raw user events that have happened in the system.
- Number of times user activity has been reported, dividied by UID and type of activity.
- Duration of screen brightness levels in 4 buckets.
- Per-UID tracking of who has turned on Wifi and how long we can attribute it being on because of them.
Original author: hackbod
Merged from: //branches/cupcake/...
Automated import of CL 143800
Adds stats for:
- Number of raw user events that have happened in the system.
- Number of times user activity has been reported, dividied by UID and type of activity.
- Duration of screen brightness levels in 4 buckets.
- Per-UID tracking of who has turned on Wifi and how long we can attribute it being on because of them.
Original author: hackbod
Merged from: //branches/cupcake/...
Original author: android-build
Merged from: //branches/donutburger/...
Automated import of CL 143823
Add a function to change getBackground color.
Add a function to check whether EditStyledText has styled text or not.
Refactor function and variable names for readability.
Original author: satok
Merged from: //branches/cupcake/...
Original author: android-build
Merged from: //branches/donutburger/...
Automated import of CL 143347
Add a function to change getBackground color.
Add a function to check whether EditStyledText has styled text or not.
Refactor function and variable names for readability.
Original author: satok
Merged from: //branches/cupcake/...
Automated import of CL 143196
