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    Appalling browser performance in PR1.2

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    AtteK0 | # 11 | 2010-05-26, 16:22 | Report

    PR1.2 was late because of the unstability of MicroB. Seems that they really did rush it out...

    The tests I do with bit.ly/brmark were boosted 17%, which was quite good. Multitasking really lags and becomes unresponsive using the browser now. It did not do that before.

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    spanner | # 12 | 2010-05-26, 16:23 | Report

    Originally Posted by wmarone View Post
    Swapping willl always kill performance, as the CPU is busy pushing pages out to the eMMC which is rather slow.
    As soon as I open that problematic page, I go from 0 -> 75 MB swap usage.

    The memory usage for browserd and Xorg seem reasonable though (about 20% each)

    Originally Posted by wmarone View Post
    I suggest using htop and sorting by MEM usage. See what's eating memory. Also, those BBC pages had the iPlayer on them, which loads Flash, which has always been a huge source of performance issues for me.
    I'm not talking about loading-flash-slow - I'm familiar with that. This is a whole new category of hopelessness. I'm being prompted to kill unresponsive windows all the time. My task switcher doesn't work while this is happening. I just got the "pc delivering insufficient power to charge battery" for the first time since December - I think because of the constant CPU usage.

    As I say, a bit of zoom & everything is fine. I don't think that's consistent with Flash problems...

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    kojacker | # 13 | 2010-05-26, 16:37 | Report

    I haven't noticed it slower, but I have noticed a couple of "quirky" things. What they mean I don't know, for example:

    It seems much easier to swirly zoom now.
    After zooming, images and text doesnt seem to adjust as quickly as they used to (resolution wise)
    Sometimes when scrolling a black line appears and flashes across the middle of the webpage pane and disappears once you stop dragging with your finger. I hadnt noticed that before.

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    Bratag | # 14 | 2010-05-26, 16:44 | Report

    Originally Posted by spanner View Post
    Has anyone else noticed that browsing performance has dropped off a cliff with PR1.2? For some web pages at least.

    Go to http://news.bbc.co.uk/ and click on one of the links at the top right, under the heading "other top stories".

    As & after the page is loading, scroll around a bit.

    My cpu is pegged. It feels like the whole system is swapping madly (it isn't, but it feels like it). Task switching is unresponsive or crawls. Xorg is taking 70-75% CPU, browserd is taking 20% or so. Disabling Javascript doesn't help.

    This is a fresh flash of both FIASCO and eMMC for PR1.2.

    I wonder if this is related to antialiasing or kerning as everything chills out a bit if I zoom in slightly.
    Interesting. I was going to say that it felt snappier to me, however clicking on the link regarding bank levys does indeed bring my phone to its knees. I wonder whats on that page.

    Whats very interesting however is that the load isnt coming from browserd but rather Xorg.

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    spanner | # 15 | 2010-05-26, 16:50 | Report

    Originally Posted by Bratag View Post
    Interesting. I was going to say that it felt snappier to me, however clicking on the link regarding bank levys does indeed bring my phone to its knees. I wonder whats on that page.

    Whats very interesting however is that the load isnt coming from browserd but rather Xorg.
    Can you confirm that zooming in a little improves performance?

    If I go set Options -> Adjust View -> Show Images = None

    then performance is great. Something to do with Xorg and bitmaps? There aren't *that* many images on the BBC pages.

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    PhonoN900 | # 16 | 2010-05-26, 16:52 | Report

    I'm having a serious issue scrolling web pages with the arrow keys. If I press and hold the down button for anything longer than 1.5 seconds (more than just one "click") it scrolls uncontrollably down the page.

    Especially when the page is loading, or if I (have a seperate page loading in the background).

    It used to do this when the cpu was under full load (i.e. on phone startup), but now it seems to do it 70% of the time.

    Anyone else experiencing this? Can you open a few pages and scroll through a loaded one normally, or does it scrol further down the page than expected?

    Again, this is only using the arrow keys, thumb/stylus movement seems smoother... Using the arrow keys to moe around is my main use case, and this is making it almost useless... not happy

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    TomJ | # 17 | 2010-05-26, 16:52 | Report

    Originally Posted by Bratag View Post
    Interesting. I was going to say that it felt snappier to me, however clicking on the link regarding bank levys does indeed bring my phone to its knees. I wonder whats on that page.

    Whats very interesting however is that the load isnt coming from browserd but rather Xorg.
    Again, tried that page, wiht about half a dozen windows for various apps open, with no particular problem.

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    wmarone | # 18 | 2010-05-26, 16:56 | Report

    Originally Posted by Bratag View Post
    Interesting. I was going to say that it felt snappier to me, however clicking on the link regarding bank levys does indeed bring my phone to its knees. I wonder whats on that page.

    Whats very interesting however is that the load isnt coming from browserd but rather Xorg.
    Strange. Spanner, Bratag, when you upgraded was it via the Application Manager (OTA) or by reflashing. I reflashed last night and have not had any issues at all.

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    spanner | # 19 | 2010-05-26, 16:59 | Report

    Originally Posted by wmarone View Post
    Strange. Spanner, Bratag, when you upgraded was it via the Application Manager (OTA) or by reflashing. I reflashed last night and have not had any issues at all.
    Reflashed (including eMMC) and restored from backup.

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    Bratag | # 20 | 2010-05-26, 16:59 | Report

    Originally Posted by wmarone View Post
    Strange. Spanner, Bratag, when you upgraded was it via the Application Manager (OTA) or by reflashing. I reflashed last night and have not had any issues at all.
    I reflashed. Admittedly I didnt do a full emmc flash but still. What I can see is that those pages seem to have some fairly heavy flash content on them. Not sure why that would kill my phone when other flash pages dont ... maybe I should reflash everything.

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