Hi
On Tue, Oct 20, 2009 at 12:07 PM, Joel Fernandes agnel.j...@gmail.com wrote:
Well I don't think queue rearrangement is even in the picture, that's
not the flusher thread's job?
The starvation I was actually referring to was from
http://lwn.net/Articles/326552/ :
which says that pdflush
Thanks for sharing! Peter, I think spindle is used just as another
word for slow device which I guess could be any other type of slow
storage medium like iSCSI or loop over NFS.
In some degree, I agree with that.
However, specificly to block device like hard disk, where things could
made
IMO yes, but starved better :) Not sure if I write it correctly, but
here is my understanding:
say you have 4 pdflush threads, competing to write to a disk. All are
busy, so you can say all are quite starved. But the writing process
(even though it's using async style) doesn't know about it.
On 10/18/09, Rik van Riel r...@nl.linux.org wrote:
Peter Teoh wrote:
now the pdflush is deprecated by per-bdi writeout. Can I know
conceptually, in a few sentences, what are the key features that
enable per-bdi writeout to be faster than pdflush?
Yes. LWN has a great article
On Sun, Oct 18, 2009 at 9:17 AM, Peter Teoh htmldevelo...@gmail.com wrote:
On 10/18/09, Rik van Riel r...@nl.linux.org wrote:
Peter Teoh wrote:
now the pdflush is deprecated by per-bdi writeout. Can I know
conceptually, in a few sentences, what are the key features that
enable per-bdi
Hi...
On Mon, Oct 19, 2009 at 12:57 AM, Joel Fernandes agnel.j...@gmail.com wrote:
Hi Rik, Peter,
Thanks for sharing! Peter, I think spindle is used just as another
word for slow device which I guess could be any other type of slow
storage medium like iSCSI or loop over NFS.
In some degree,
Peter Teoh wrote:
now the pdflush is deprecated by per-bdi writeout. Can I know
conceptually, in a few sentences, what are the key features that
enable per-bdi writeout to be faster than pdflush?
Yes. LWN has a great article on the per-bdi writeout changes.
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