On 20.08.12 10:32, Doug Barton wrote:
On 08/15/2012 03:18, Alexander Motin wrote:
It is quite pointless to speculate without real info like mentioned
above KTR_SCHED traces.
I'm sorry, you're quite wrong about that. In the cases I mentioned, and
in about 2 out of 3 of the cases where users
On 08/15/2012 03:18, Alexander Motin wrote:
On 15.08.2012 03:09, Doug Barton wrote:
On 08/14/2012 12:20 PM, Adrian Chadd wrote:
Would you be willing to compile a kernel with KTR so you can capture
some KTR scheduler dumps?
That way the scheduler peeps can feed this into schedgraph.py (and
On 20.08.2012 11:32, Doug Barton wrote:
On 08/15/2012 03:18, Alexander Motin wrote:
On 15.08.2012 03:09, Doug Barton wrote:
On 08/14/2012 12:20 PM, Adrian Chadd wrote:
Would you be willing to compile a kernel with KTR so you can capture
some KTR scheduler dumps?
That way the scheduler peeps
On 08/20/2012 02:59, Alexander Motin wrote:
On 20.08.2012 11:32, Doug Barton wrote:
On 08/15/2012 03:18, Alexander Motin wrote:
On 15.08.2012 03:09, Doug Barton wrote:
On 08/14/2012 12:20 PM, Adrian Chadd wrote:
Would you be willing to compile a kernel with KTR so you can capture
some KTR
On 20.08.2012 13:25, Doug Barton wrote:
On 08/20/2012 02:59, Alexander Motin wrote:
On 20.08.2012 11:32, Doug Barton wrote:
On 08/15/2012 03:18, Alexander Motin wrote:
On 15.08.2012 03:09, Doug Barton wrote:
On 08/14/2012 12:20 PM, Adrian Chadd wrote:
Would you be willing to compile a
On 08/20/2012 06:32, Alexander Motin wrote:
I have no plans to converge them. I've just found problem in ULE, that
was replicated into 4BSD and it would be strange to fix one without
another. But fixing it exposed another old problem specific to 4BSD,
which I fixed reusing logically equivalent
On Fri, Aug 17, 2012 at 3:23 PM, Ian Lepore
free...@damnhippie.dyndns.org wrote:
On Fri, 2012-08-17 at 14:29 -0700, Kevin Oberman wrote:
On Fri, Aug 17, 2012 at 10:11 AM, Ian Lepore
No! Not bde! He'll notice that I violated style(9) by accidentally
leaving an extra blank line between a
Hello, Ian.
You wrote 17 августа 2012 г., 18:56:33:
IL That result actually matches my expectation... it fixed only a part of
IL your problem.
I was (partly) wrong :( Under ``really high'' load (4MiB/s up/down load
in same time) userland freezes again.
Unfortunately, it is difficult to
Hello, Ian.
You wrote 16 августа 2012 г., 21:47:06:
IL It's a long shot, but if the trouble you're seeing has the same cause,
IL it should be fixed by this patch:
IL http://lists.freebsd.org/pipermail/freebsd-hackers/2012-January/037233.html
It looks like, this patch fixes freezes under
On Fri, 2012-08-17 at 14:38 +0400, Lev Serebryakov wrote:
Hello, Ian.
You wrote 16 августа 2012 г., 21:47:06:
IL It's a long shot, but if the trouble you're seeing has the same cause,
IL it should be fixed by this patch:
IL
On 17 August 2012 07:56, Ian Lepore free...@damnhippie.dyndns.org wrote:
That result actually matches my expectation... it fixed only a part of
your problem. I suspected (without very good evidence) that you may
have two unrelated problems; hopefully now that we've eliminated one the
other
On Fri, 2012-08-17 at 09:58 -0700, Adrian Chadd wrote:
On 17 August 2012 07:56, Ian Lepore free...@damnhippie.dyndns.org wrote:
That result actually matches my expectation... it fixed only a part of
your problem. I suspected (without very good evidence) that you may
have two unrelated
On Fri, Aug 17, 2012 at 10:11 AM, Ian Lepore
free...@damnhippie.dyndns.org wrote:
On Fri, 2012-08-17 at 09:58 -0700, Adrian Chadd wrote:
On 17 August 2012 07:56, Ian Lepore free...@damnhippie.dyndns.org wrote:
That result actually matches my expectation... it fixed only a part of
your
On Fri, 2012-08-17 at 14:29 -0700, Kevin Oberman wrote:
On Fri, Aug 17, 2012 at 10:11 AM, Ian Lepore
No! Not bde! He'll notice that I violated style(9) by accidentally
leaving an extra blank line between a comment block and the function
definition. :) (There are probably more violations
.. I did mean bde because it's timekeeping related and he/mav are well
versed in what's going on there. bde likely knows about the older RTC
behaviours too.
Sheesh. It's not always about style(9) :-)
Adrian
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On Wed, 2012-08-15 at 14:40 +0400, Lev Serebryakov wrote:
Hello, Alexander.
You wrote 15 августа 2012 г., 14:18:05:
AM It is quite pointless to speculate without real info like mentioned
AM above KTR_SCHED traces. Main thing I've learned about schedulers, things
AM there never work as you
Hey cool; if this works out for lev, could we get this into -HEAD and MFC it?
Adrian
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Hello, Ian.
You wrote 16 августа 2012 г., 21:47:06:
IL It's a long shot, but if the trouble you're seeing has the same cause,
IL it should be fixed by this patch:
IL http://lists.freebsd.org/pipermail/freebsd-hackers/2012-January/037233.html
I'll add this patch to my tests, thanks!
--
//
On 2012-08-15 02:09, Doug Barton wrote:
On 08/14/2012 12:20 PM, Adrian Chadd wrote:
...
Maybe things aren't being scheduled correctly and the added latency is
killing performance?
You might also try switching to SCHED_ULE to see if it helps.
Most likely, s/ULE/4BSD/ here, and in the rest
Hello, Adrian.
You wrote 15 августа 2012 г., 2:20:48:
AC Would you be willing to compile a kernel with KTR so you can capture
AC some KTR scheduler dumps?
AC That way the scheduler peeps can feed this into schedgraph.py (and you
AC can too!) to figure out what's going on.
AC Maybe things
Hello, Lev.
You wrote 15 августа 2012 г., 0:45:42:
LS Answer looks trivial: router CPU is bottleneck. But here is one additional
LS detail: `top' never shows less than 50% of idle when torrents are
LS active. And `idle' time with torrents traffic is ALWAYS is higher than
LS without them, but
On 08/14/2012 09:18 PM, Dimitry Andric wrote:
On 2012-08-15 02:09, Doug Barton wrote:
On 08/14/2012 12:20 PM, Adrian Chadd wrote:
...
Maybe things aren't being scheduled correctly and the added latency is
killing performance?
You might also try switching to SCHED_ULE to see if it helps.
On Wed, Aug 15, 2012 at 1:21 AM, Lev Serebryakov l...@freebsd.org wrote:
Hello, Lev.
You wrote 15 августа 2012 г., 0:45:42:
LS Answer looks trivial: router CPU is bottleneck. But here is one
additional
LS detail: `top' never shows less than 50% of idle when torrents are
LS active. And
On 15.08.2012 03:09, Doug Barton wrote:
On 08/14/2012 12:20 PM, Adrian Chadd wrote:
Would you be willing to compile a kernel with KTR so you can capture
some KTR scheduler dumps?
That way the scheduler peeps can feed this into schedgraph.py (and you
can too!) to figure out what's going on.
Hello, Alexander.
You wrote 15 августа 2012 г., 14:18:05:
AM It is quite pointless to speculate without real info like mentioned
AM above KTR_SCHED traces. Main thing I've learned about schedulers, things
AM there never work as you expect. There are two many factors are relations
AM to predict
Lev Serebryakov wrote:
Hello, Lev.
You wrote 15 =D0=B0=D0=B2=D0=B3=D1=83=D1=81=D1=82=D0=B0 2012 =D0=B3., 0:45:=
42:
LS Answer looks trivial: router CPU is bottleneck. But here is one additi=
onal
LS detail: `top' never shows less than 50% of idle when torrents are
LS active. And `idle'
Hello, Ian.
You wrote 15 августа 2012 г., 14:57:17:
IF Are you sure it's a freeze and not a panic? I'm seeing very frequent
Yes, I'm sure, because I have hardware console attached (serial one,
connected to other computer on my network) and because it un-freeze
after minute or two, and
On 15.08.2012 13:40, Lev Serebryakov wrote:
You wrote 15 августа 2012 г., 14:18:05:
AM It is quite pointless to speculate without real info like mentioned
AM above KTR_SCHED traces. Main thing I've learned about schedulers, things
AM there never work as you expect. There are two many factors are
Hello, Alexander.
You wrote 15 августа 2012 г., 15:07:32:
AM Yes, that is what I expected to see there. If you have timecounter other
AM then i8254, you can release i8254 from those duties to allow using it as
AM one-shot setting hint.attimer.0.timecounter=0. Otherwise there are no
AM options
On 15.08.2012 14:11, Lev Serebryakov wrote:
Hello, Alexander.
You wrote 15 августа 2012 г., 15:07:32:
AM Yes, that is what I expected to see there. If you have timecounter other
AM then i8254, you can release i8254 from those duties to allow using it as
AM one-shot setting
Hello, Alexander.
You wrote 15 августа 2012 г., 15:19:32:
AM I've meant `kern.timecounter`.
kern.timecounter.tick: 1
kern.timecounter.choice: TSC(800) i8254(0) dummy(-100)
kern.timecounter.hardware: TSC
kern.timecounter.stepwarnings: 0
kern.timecounter.tc.i8254.mask: 65535
Lev Serebryakov wrote:
Hello, Lev.
You wrote 15 =D0=B0=D0=B2=D0=B3=D1=83=D1=81=D1=82=D0=B0 2012 =D0=B3., 0:45:=
42:
LS Answer looks trivial: router CPU is bottleneck. But here is one additi=
onal
LS detail: `top' never shows less than 50% of idle when torrents are
LS active. And `idle'
On 15.08.2012 14:23, Lev Serebryakov wrote:
Hello, Alexander.
You wrote 15 августа 2012 г., 15:19:32:
AM I've meant `kern.timecounter`.
kern.timecounter.tick: 1
kern.timecounter.choice: TSC(800) i8254(0) dummy(-100)
kern.timecounter.hardware: TSC
kern.timecounter.stepwarnings: 0
Hi,
Would you be willing to compile a kernel with KTR so you can capture
some KTR scheduler dumps?
That way the scheduler peeps can feed this into schedgraph.py (and you
can too!) to figure out what's going on.
Maybe things aren't being scheduled correctly and the added latency is
killing
On 08/14/2012 12:20 PM, Adrian Chadd wrote:
Hi,
Would you be willing to compile a kernel with KTR so you can capture
some KTR scheduler dumps?
That way the scheduler peeps can feed this into schedgraph.py (and you
can too!) to figure out what's going on.
Maybe things aren't being
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