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TPEPlatform/2013-11-21: Difference between revisions
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* {{Bug|939348}} - [b2g][Settings] Gralloc alloc takes 40ms, causes Settings page transition to be janky | * {{Bug|939348}} - [b2g][Settings] Gralloc alloc takes 40ms, causes Settings page transition to be janky | ||
** This issue should share same root cause with 939565 - Gralloc Allocation can take 25ms+ ; BenWa suggested to add a flag - MAP_POPULATE for mmap() calls. My experiments shows that does help for gralloc performance(from 25+ ms to about 19 ms). According BenWa's comment it might dues to mmap sets up the page lazily when the allocation is large. In this case we always memset the entire area so the pages fault-in because they aren't setup. Another reason that I am suspecting is the "write on demand" nature of linux kernel's memory management strategy. Diego just take the ownership of 939565 and will following up that issue. | ** This issue should share same root cause with 939565 - Gralloc Allocation can take 25ms+ ; BenWa suggested to add a flag - MAP_POPULATE for mmap() calls. My experiments shows that does help for gralloc performance(from 25+ ms to about 19 ms). According BenWa's comment it might dues to mmap sets up the page lazily when the allocation is large. In this case we always memset the entire area so the pages fault-in because they aren't setup. Another reason that I am suspecting is the "write on demand" nature of linux kernel's memory management strategy. Diego just take the ownership of 939565 and will following up that issue. | ||
* {{Bug|933711}} - [B2G][Helix][stability][fengximing]When the Firefox phone goes to sleep, wait for long time, if you wake up the phone, it took too much time to enter the lock screen. /Morris | |||
** Confirm this issue is not related to re-paint event | |||
** When issue happened, there are some event run exceed 500ms. I'll find which event is slow. | |||
* {{Bug|709490}} - Run WebGL on Web Worker with Off-Main-Thread-Compositing / Morris | |||
** Update to address comment | |||
==Input== | ==Input== | ||