148
edits
Firefox OS/MappedArrayBuffer: Difference between revisions
Jump to navigation
Jump to search
→Q & A
(→Q & A) |
|||
| Line 39: | Line 39: | ||
== Q & A == | == Q & A == | ||
* How to make the file uncompressed and aligned in packaged app? | * '''How to make the file uncompressed and aligned in packaged app?''' | ||
: For keyboard app, put the file |metadata.json| in gaia/apps/keyboard to indicate the file to be memory-mapped, below is an example(see bug 957497 for more information). | : For keyboard app, put the file |metadata.json| in gaia/apps/keyboard to indicate the file to be memory-mapped, below is an example(see bug 957497 for more information). | ||
{ | { | ||
| Line 55: | Line 55: | ||
4541832 Stored 4541832 0% 1970-01-01 08:00 426a7f8e js/imes/jszhuyin/data/database.data | 4541832 Stored 4541832 0% 1970-01-01 08:00 426a7f8e js/imes/jszhuyin/data/database.data | ||
* How to know if the array buffer is memory-mapped in an XHR response? | * '''How to know if the array buffer is memory-mapped in an XHR response?''' | ||
: The Content-Type header is "application/mem-mapped" for such response. | : The Content-Type header is "application/mem-mapped" for such response. | ||
* How to check memory usage? | * '''How to check memory usage?''' | ||
: You can check the memory usage by the following command: | : You can check the memory usage by the following command: | ||
$ tools/get_about_memory.py --no-gc-cc-log | $ tools/get_about_memory.py --no-gc-cc-log | ||
| Line 90: | Line 90: | ||
│ └──0.05 MB (00.25%) ++ (2 tiny) | │ └──0.05 MB (00.25%) ++ (2 tiny) | ||
: | : Memory-mapped array buffer is reported at non-heap/elements/mapped | ||
: Normal array buffer is reported at malloc-heap/elements/non-asm.js | |||