bfq vs cfq
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l0tek
May 3, 2010, 10:11:03 AM5/3/10
to Zen-Kernel
From zen-kernel.org (2.6.33 series):
"bfq not merged, awaiting new version before 2.6.33 port"
I'd like to know if there are going to be new releases of the bfq code
anywhere soon... the sources directory on the official bfq website has
not been updated in ages (2008/2009).
Btw bfq was my i/o scheduler of choice, but now I wonder how it
compares to cfq after the latest patches (low_latency mode, queue
merging...)
"bfq not merged, awaiting new version before 2.6.33 port"
I'd like to know if there are going to be new releases of the bfq code
anywhere soon... the sources directory on the official bfq website has
not been updated in ages (2008/2009).
Btw bfq was my i/o scheduler of choice, but now I wonder how it
compares to cfq after the latest patches (low_latency mode, queue
merging...)
paolo
May 12, 2010, 5:11:19 AM5/12/10
to Zen-Kernel
Hi,
I'm Paolo, one of the authors of bfq. We have ported it to 2.6.33 some
months ago.
Unfortunately none of us has much time, so testing has been proceeding
slowly.
However, after a little tuning, we are apparently getting striking
results in terms of
latency. We hope we can release this new version in a week or two.
I'm Paolo, one of the authors of bfq. We have ported it to 2.6.33 some
months ago.
Unfortunately none of us has much time, so testing has been proceeding
slowly.
However, after a little tuning, we are apparently getting striking
results in terms of
latency. We hope we can release this new version in a week or two.
dav.d...@gmail.com
May 12, 2010, 6:03:07 AM5/12/10
to zen_k...@googlegroups.com
l0tek
May 13, 2010, 3:05:47 AM5/13/10
to Zen-Kernel
Excellent.
This is going to be available in the zen git (.34rc) version too,
right?
This is going to be available in the zen git (.34rc) version too,
right?
Dominic Duklas
May 13, 2010, 6:03:58 AM5/13/10
to zen_k...@googlegroups.com
Yes we will merge it in once it becomes available.
Mladen Pejaković
May 13, 2010, 6:09:30 AM5/13/10
to zen_k...@googlegroups.com
On Wed, 12 May 2010 11:11:19 +0200, paolo <posta...@yahoo.it> wrote:
> Unfortunately none of us has much time, so testing has been proceeding
> slowly.
Why don't you give us something so we can take a part in testing? :)
> Unfortunately none of us has much time, so testing has been proceeding
> slowly.
Paolo Valente
May 17, 2010, 7:09:38 AM5/17/10
to zen_k...@googlegroups.com
Mladen Pejaković ha scritto:
I'm finishing tuning a tricky write-to-read ratio, then we will be more
than happy to get help with testing :)
than happy to get help with testing :)
epoch
May 26, 2010, 2:10:54 AM5/26/10
to Zen-Kernel
That is great news. I am looking forward to the new release. ;-)
Any news on the Zen version of the latest stable? I'm a little eager
to get my hands on it...
l0tek
May 28, 2010, 11:35:22 AM5/28/10
to Zen-Kernel
ciao paolo,
any news about bfq? please keep us posted :-)
any news about bfq? please keep us posted :-)
Paolo Valente
May 28, 2010, 3:03:35 PM5/28/10
to zen_k...@googlegroups.com
Just finished fighting against a memory leak and a very likeable
infinite loop with interrupts disabled ...
Guess how pleasant it has been to debug the latter :)
This morning I restarted the full bath of tests for a last (?) tuning
round (and hopefully not for finding any bug :) ).
infinite loop with interrupts disabled ...
Guess how pleasant it has been to debug the latter :)
This morning I restarted the full bath of tests for a last (?) tuning
round (and hopefully not for finding any bug :) ).
l0tek ha scritto:
>> ------------------------------------------------------------------------
>>
>>
>> No virus found in this incoming message.
>> Checked by AVG - www.avg.com
>> Version: 8.5.437 / Virus Database: 271.1.1/2901 - Release Date: 05/28/10 06:25:00
>>
>>
l0tek
May 29, 2010, 2:11:35 AM5/29/10
to Zen-Kernel
On May 28, 9:03 pm, Paolo Valente <posta_pa...@yahoo.it> wrote:
> Just finished fighting against a memory leak and a very likeable
> infinite loop with interrupts disabled ...
> Guess how pleasant it has been to debug the latter :)
i don't envy you...
> Just finished fighting against a memory leak and a very likeable
> infinite loop with interrupts disabled ...
> Guess how pleasant it has been to debug the latter :)
> This morning I restarted the full bath of tests for a last (?) tuning
> round (and hopefully not for finding any bug :) ).
epoch
Jun 10, 2010, 7:21:42 AM6/10/10
to Zen-Kernel
Looks like there haven't been any updates in a while.... hope that
doesn't mean zen development is coming to an halt.
If the problems Paolo was talking about have been fixed, maybe at
least release an updated version of Zen for the new kernel so we don't
have to use the old 2.6.33 ?
Keep up the good work...
doesn't mean zen development is coming to an halt.
If the problems Paolo was talking about have been fixed, maybe at
least release an updated version of Zen for the new kernel so we don't
have to use the old 2.6.33 ?
Keep up the good work...
BB
Jun 15, 2010, 4:46:58 PM6/15/10
to Zen-Kernel
We have maintained bfq up to 2.6.32, but development slowed in general
and we never really got around to anything further.
2.6.34 zen-stable is actively in the works.
and we never really got around to anything further.
2.6.34 zen-stable is actively in the works.
Steven Barrett
Jun 27, 2010, 12:41:54 AM6/27/10
to zen_k...@googlegroups.com
Are there any new updates for BFQ?
Paolo Valente
Jun 27, 2010, 7:45:53 AM6/27/10
to zen_k...@googlegroups.com
I finished running the tests, and I am writing down all the details
(facts discovered, changes made, ...) to let you know what I did during
these silent weeks. I hope this will be the last demanding task. Then I
want just to polish the code a little bit and prepare the patches.
(facts discovered, changes made, ...) to let you know what I did during
these silent weeks. I hope this will be the last demanding task. Then I
want just to polish the code a little bit and prepare the patches.
Steven Barrett ha scritto:
> Version: 8.5.439 / Virus Database: 271.1.1/2961 - Release Date: 06/24/10 18:35:00
>
>
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