Taras is off for a couple of weeks as he is a proud new daddy. (Congrats Taras!) In his absence, I’m bringing you this week’s Snappy update.
Last week Taras started his post with a summary of the work that went into Firefox 13. I’m pleased that Vlad has resolved the first Snappy bug for Firefox 14. (It’s a Telemetry probe but definitely a righteous change as it’s measuring slow SQL.)
Here’s a rundown of what happened in Snappy this week.
As I said above, Vlad landed a Telemetry probe for slow dynamic SQL queries. He also updated about:telemetry to show the data.
The profiler saw progress this week. I hope this will continue as Benoit has a bit of time to devote to Snappy again.
- Ehsan landed Android stackwalking support.
- Markus Stange (mstange) has been rocking the entire UI. See the new front end screenshot. (bug 719530)
- Front-end now using chrome and web worker. Improved the performance of operations in the UI to support a larger profile.
- Investigated adding an option to IonMonkey to generate JIT with frame pointers on profiling builds, which will let us use our current infrastructure. (bug 736299)
- Working towards multiple thread profiling and investigating OpenGL profiling with fence.
- Vlad and Benoit are working to modify the SPS profiler extension to work with the Snappy Symbolication Server. (See Chromehang below.)
Updates courtesy of Vlad.
- Marching towards a public release, the Snappy Symbolication Server was submitted for privacy review and security code review.
- Vlad blogged about chromehang work. Read it.
- The about:telemetry add-on was updated to show chromehang reports locally. This version of add-on will not be released until the Symbolication Server is deployed publicly. (See bullet 1 above.) Until then, the add-on can be download manually.
- Avi has been working on fixing scrolling for OSX and Linux.
- Avi tweaked scrolling animation to be 400ms instead of 800ms. (bug 736251 and bug 737758)
- Mark added date controls and a selector for period of moving average.
- Mark is working on figuring out how to detect and report changes.
- Peptest is enabled on try. Submit your test cases (mcote can review) for changes for which you want to measure the effect on responsiveness.
- Looking at speeding up CCs with two tabs open (Gmail+mozilla Wiki) by removing more stuff from the CC graph. Landed bugs 735342, 736763, 735550, 737060.
- mccr8 has a preliminary patch for delaying slow CCs. (bug 710496)
- More preliminary patches from mccr8 for removing more things from the CC graph (bug 736563, bug 737075)
- Next will investigate CCs with 6 or so tabs open and reported slowdowns from add-ons.
Rafael identified new issues related to shutdown and has some further paths to check.
- The switch to private browsing doesn’t close the db. (bug 735697)
- Checking that Connection::internalClose is called on every connection we called Connection::initialize on. (bug 711076)
- Have the basics for write poisoning working. (bug 732173)
Patch under review to decide if we should take the fast exit path or not. (bug 731741)