Jens Axboe wrote:
> This lists the main features of the 'block' branch, which is bound for
> Linus when 2.6.19 opens:
>
> - Splitting of request->flags into two parts:
> - cmd type
> - modified flags
> Right now it's a bit of a mess, splitting this up invites a cleaner
> usage and also enables us to implement generic "messages" passed on
> the regular queue for the device.
>
> - Abstract out the request back merging and put it into the core io
> scheduler layer. Cleans up all the io schedulers, and noop gets
> merging for "free".
>
> - Abstract out the rbtree sorting. Gets rid of duplicated code in
> as/cfq/deadline.
>
> - General shrinkage of the request structure.
>
> - Killing dynamic rq private structures in deadline/as/cfq. This should
> speed up the io path somewhat, as we avoid allocating several
> structures (struct request + scheduler private request) for each io
> request.
>
> - meta data io logging for blktrace.
>
> - CFQ improvements.
>
> - Make the block layer configurable through Kconfig (David Howells).
>
> - Lots of cleanups.
Does it also address the strange "max_sectors_kb<>192 causes a 50%-slowdown"
problem?
Thanks!
--
Al
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
