On Mon, Dec 23, 2013 at 12:03:39PM +0900, Chanho Min wrote:
>
>
> > read_pages
> > for(page_idx ...) {
> > if (!add_to_page_cache_lru)) { <-- 1)
> > mapping->a_ops->readpage(filp, page)
> > squashfs_readpage
> > for (i ...) { 2) Here, 31 pages are inserted into pa
On 16/12/13 05:30, Chanho Min wrote:
This patch removes synchronous wait for the up-to-date of buffer in the
file system level. Instead all operations after submit_bh are moved into
the End-of-IO handler and its associated workeque. It decompresses/copies
data into pages and unlock them asynchron
> read_pages
> for(page_idx ...) {
> if (!add_to_page_cache_lru)) { <-- 1)
> mapping->a_ops->readpage(filp, page)
> squashfs_readpage
> for (i ...) { 2) Here, 31 pages are inserted into page cache
> grab_cahe_page_nowait <--/
> add_to
On Sat, Dec 21, 2013 at 11:05:51AM +0900, Chanho Min wrote:
>
> > Please don't break thread.
> > You should reply to my mail instead of your original post.
> Sorry, It seems to be my mailer issue. I'm trying to fix it.
>
> > It's a result which isn't what I want to know.
> > What I wnat to know i
> Please don't break thread.
> You should reply to my mail instead of your original post.
Sorry, It seems to be my mailer issue. I'm trying to fix it.
> It's a result which isn't what I want to know.
> What I wnat to know is why upper layer issues more I/O per second.
> For example, you read 32K
Hello,
Please don't break thread.
You should reply to my mail instead of your original post.
On Wed, Dec 18, 2013 at 01:29:37PM +0900, Chanho Min wrote:
>
> > I did test it on x86 with USB stick and ARM with eMMC on my Nexus 4.
> > In experiment, I couldn't see much gain like you both system and
> I did test it on x86 with USB stick and ARM with eMMC on my Nexus 4.
> In experiment, I couldn't see much gain like you both system and even it
> was regressed at bs=32k test, maybe workqueue allocation/schedule of work
> per I/O.
> Your test is rather special or what I am missing?
Can you speci
Hello Chanho,
On Mon, Dec 16, 2013 at 02:30:26PM +0900, Chanho Min wrote:
> This patch removes synchronous wait for the up-to-date of buffer in the
> file system level. Instead all operations after submit_bh are moved into
> the End-of-IO handler and its associated workeque. It decompresses/copies
This patch removes synchronous wait for the up-to-date of buffer in the
file system level. Instead all operations after submit_bh are moved into
the End-of-IO handler and its associated workeque. It decompresses/copies
data into pages and unlock them asynchronously.
This patch enhances the perform
9 matches
Mail list logo
