"David Christensen" wrote:
> > Pyun YongHyeon wrote:
> > > On Wed, Mar 10, 2010 at 02:45:47PM -0800, David Christensen wrote:
> > > > The bce(4) hardware supports a linked list of pages for RX buffer=20
> > > > descriptors. The stock build supports 2 pages (RX_PAGES) with a=20
> > > > total of 511
> Pyun YongHyeon wrote:
> > On Wed, Mar 10, 2010 at 02:45:47PM -0800, David Christensen wrote:
> > > The bce(4) hardware supports a linked list of pages for RX buffer
> > > descriptors. The stock build supports 2 pages (RX_PAGES) with a
> > > total of 511 BD's per page. The hardware can support
Pyun YongHyeon wrote:
> On Wed, Mar 10, 2010 at 02:45:47PM -0800, David Christensen wrote:
> > The bce(4) hardware supports a linked list of pages for RX
> > buffer descriptors. The stock build supports 2 pages (RX_PAGES)
> > with a total of 511 BD's per page. The hardware can support a
> > maxi
Pyun YongHyeon wrote:
> I successfully reproduced the issue with netperf on BCM5709. You
> can use UDP frame size 1 to trigger the issue.
Now I wish I had paid closer attention ages ago. I actually saw
this when I benchmarked the system post purchase, but didn't
investigate further. I tested and
On Wed, Mar 10, 2010 at 02:45:47PM -0800, David Christensen wrote:
>
> > I successfully reproduced the issue with netperf on BCM5709.
> > You can use UDP frame size 1 to trigger the issue.
> >
> > > Changing the high level design of bce_rx_intr() and
> > > bce_rx_fill_chain() slightly to post a
> I successfully reproduced the issue with netperf on BCM5709.
> You can use UDP frame size 1 to trigger the issue.
>
> > Changing the high level design of bce_rx_intr() and
> > bce_rx_fill_chain() slightly to post a new buffer as each frame is
> > passed to the OS would likely avoid these gaps
On Wed, Mar 10, 2010 at 11:11:13AM -0800, David Christensen wrote:
> > > What's the traffic look like? Jumbo, standard, short
> > frames? Any=20
> > > good ideas on profiling the code? I haven't figured out how to use
> > > the CPU TSC but there is a free running timer on the device
> > that
> > What's the traffic look like? Jumbo, standard, short
> frames? Any=20
> > good ideas on profiling the code? I haven't figured out how to use
> > the CPU TSC but there is a free running timer on the device
> that might
> > be usable to calculate where the driver's time is spent.
>
> It
"David Christensen" wrote:
> > Yeah, but the question is why bce(4) has no available RX buffers.
> > The system has a lot of available mbufs so I don't see the=20
> > root cause here.
>
> What's the traffic look like? Jumbo, standard, short frames? Any=20
> good ideas on profiling the code? I h
Pyun YongHyeon wrote:
> On Tue, Mar 09, 2010 at 11:55:30PM +0200, Ian FREISLICH wrote:
> > I set the RX as high as 512 in 64 quanta but it made little difference
> > to the interrupt rate. At times where we experience the packet
> > loss and com_no_buffers increases, the interrupt rate on between
If you are on head/stable_7/stable_8 you can also do quick test with top mode
pmcstat -S unhalted-cycles -T (http://wiki.freebsd.org/PmcTools/PmcTop).
For more in depth post processing with source code (c+asm) you can output to
Kcachegrind (http://wiki.freebsd.org/PmcTools/PmcKcachegrind).
Fabie
trash_ctor and trash_dtor? You're running with INVARIANTS.
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> -Original Message-
> From: Ryan Stone [mailto:ryst...@gmail.com]
> Sent: Tuesday, March 09, 2010 2:31 PM
> To: David Christensen
> Cc: pyu...@gmail.com; Ian FREISLICH; curr...@freebsd.org
> Subject: Re: dev.bce.X.com_no_buffers increasing and packet loss
>
&
> What's the traffic look like? Jumbo, standard, short frames? Any
> good ideas on profiling the code? I haven't figured out how to use
> the CPU TSC but there is a free running timer on the device that
> might be usable to calculate where the driver's time is spent.
>
> Dave
In my experience h
On Tue, Mar 09, 2010 at 11:55:30PM +0200, Ian FREISLICH wrote:
> Pyun YongHyeon wrote:
> > On Tue, Mar 09, 2010 at 03:31:55PM +0200, Ian FREISLICH wrote:
> > > Can you explain the tunables please - I'm guessing it's these:
>
> I think I asked the wrong question. What is a "Quick BD Chain"?
I don
> > > > It's been running for about 1:23 on the patched driver.
> I'm still
> > > > seeing the com_no_buffers increase:
> > > >
> > > > [firewall2.jnb1] ~ # sysctl dev.bce |grep com_no_buffers
> > > > dev.bce.0.com_no_buffers: 5642
> > > > dev.bce.1.com_no_buffers: 497
> > > > dev.bce.2.com_no_
Pyun YongHyeon wrote:
> On Tue, Mar 09, 2010 at 03:31:55PM +0200, Ian FREISLICH wrote:
> > Can you explain the tunables please - I'm guessing it's these:
I think I asked the wrong question. What is a "Quick BD Chain"?
What relation should this number have to traffic rate. Is there a
maximum and
> > > patch can fix the RX issue you're suffering from. Anyway,
> would you
> > > give it try the patch at the following URL?
> > > http://people.freebsd.org/~yongari/bce/bce.20100305.diff
> > > The patch was generated against CURRENT and you may see a message
> > > like "Disabling COAL_NOW time
On Tue, Mar 09, 2010 at 01:31:55PM -0800, David Christensen wrote:
> > > > patch can fix the RX issue you're suffering from. Anyway,
> > would you
> > > > give it try the patch at the following URL?
> > > > http://people.freebsd.org/~yongari/bce/bce.20100305.diff
> > > > The patch was generated a
On Tue, Mar 09, 2010 at 10:26:29AM +0200, Ian FREISLICH wrote:
> Pyun YongHyeon wrote:
> > patch can fix the RX issue you're suffering from. Anyway, would you
> > give it try the patch at the following URL?
> > http://people.freebsd.org/~yongari/bce/bce.20100305.diff
> > The patch was generated aga
On Tue, Mar 09, 2010 at 03:31:55PM +0200, Ian FREISLICH wrote:
> Pyun YongHyeon wrote:
> > On Mon, Mar 08, 2010 at 04:45:20PM +0200, Ian FREISLICH wrote:
> > > Pyun YongHyeon wrote:
> > > > On Fri, Mar 05, 2010 at 11:16:41PM +0200, Ian FREISLICH wrote:
> > > > > Pyun YongHyeon wrote:
> > > > > > Th
Pyun YongHyeon wrote:
> On Mon, Mar 08, 2010 at 04:45:20PM +0200, Ian FREISLICH wrote:
> > Pyun YongHyeon wrote:
> > > On Fri, Mar 05, 2010 at 11:16:41PM +0200, Ian FREISLICH wrote:
> > > > Pyun YongHyeon wrote:
> > > > > Thanks for the info. Frankly, I have no idea how to explain the
> > > > > iss
Pyun YongHyeon wrote:
> patch can fix the RX issue you're suffering from. Anyway, would you
> give it try the patch at the following URL?
> http://people.freebsd.org/~yongari/bce/bce.20100305.diff
> The patch was generated against CURRENT and you may see a message
> like "Disabling COAL_NOW timedou
On Mon, Mar 08, 2010 at 04:45:20PM +0200, Ian FREISLICH wrote:
> Pyun YongHyeon wrote:
> > On Fri, Mar 05, 2010 at 11:16:41PM +0200, Ian FREISLICH wrote:
> > > Pyun YongHyeon wrote:
> > > > Thanks for the info. Frankly, I have no idea how to explain the
> > > > issue given that you have no heavy lo
Pyun YongHyeon wrote:
> On Fri, Mar 05, 2010 at 11:16:41PM +0200, Ian FREISLICH wrote:
> > Pyun YongHyeon wrote:
> > > Thanks for the info. Frankly, I have no idea how to explain the
> > > issue given that you have no heavy load.
> >
> > How many cores would be involved in handling the traffic and
On Fri, Mar 05, 2010 at 11:16:41PM +0200, Ian FREISLICH wrote:
> Pyun YongHyeon wrote:
> > Thanks for the info. Frankly, I have no idea how to explain the
> > issue given that you have no heavy load.
>
> How many cores would be involved in handling the traffic and runnig
> PF rules on this machine
Pyun YongHyeon wrote:
> Thanks for the info. Frankly, I have no idea how to explain the
> issue given that you have no heavy load.
How many cores would be involved in handling the traffic and runnig
PF rules on this machine? There are 4x
CPU: Quad-Core AMD Opteron(tm) Processor 8354 (2194.51-MHz
On Fri, Mar 05, 2010 at 10:20:18PM +0200, Ian FREISLICH wrote:
> Pyun YongHyeon wrote:
> >
> > Would you show me the output of dmesg(bce(4)/brgphy(4) only) and
> > the output of "pciconf -lcbv" for the controller?
>
> [firewall1.jnb1] ~ # egrep "bce|brgphy" /var/run/dmesg.boot
> bce0: mem
> 0x
Pyun YongHyeon wrote:
>
> Would you show me the output of dmesg(bce(4)/brgphy(4) only) and
> the output of "pciconf -lcbv" for the controller?
[firewall1.jnb1] ~ # egrep "bce|brgphy" /var/run/dmesg.boot
bce0: mem 0xe600-0xe7ff
irq 72 at device 0.0 on pci4
miibus0: on bce0
brgphy0: PH
On Fri, Mar 05, 2010 at 08:16:31PM +0200, Ian FREISLICH wrote:
> Pyun YongHyeon wrote:
> > On Fri, Mar 05, 2010 at 01:20:57PM +0200, Ian FREISLICH wrote:
> > > Hi
> > >
> > > I have a system that is experiencing mild to severe packet loss.
> > > The interfaces are configured as follows:
> > >
> >
Pyun YongHyeon wrote:
> On Fri, Mar 05, 2010 at 01:20:57PM +0200, Ian FREISLICH wrote:
> > Hi
> >
> > I have a system that is experiencing mild to severe packet loss.
> > The interfaces are configured as follows:
> >
> > lagg0: bce0, bce1, bce2, bce3 lagproto lacp
> >
> > lagg0 then is used as
On Fri, Mar 05, 2010 at 01:20:57PM +0200, Ian FREISLICH wrote:
> Hi
>
> I have a system that is experiencing mild to severe packet loss.
> The interfaces are configured as follows:
>
> lagg0: bce0, bce1, bce2, bce3 lagproto lacp
>
> lagg0 then is used as the hwdev for the vlan interfaces.
>
>
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