Re: Possible obscure socket leak when system under load and listener is slow to accept

2012-12-09 Thread Alfred Perlstein
On 12/8/12 5:05 PM, Richard Sharpe wrote: On Sun, 2012-12-09 at 00:50 +0100, Andre Oppermann wrote: Hi folks, Our QA group (at xxx) using Samba and smbtorture has been seeing a lot of cases where accept returns ECONNABORTED because the system load is high and Samba has a large listen backlog.

Re: FreeBSD for serious performance?

2012-12-09 Thread Dieter BSD
Ronald writes: > the last Alpha to be produced was shipped way back in 2004... eight years > ago... with a top speed of 1.3 GHz.  I now have a cheap little media player > thingy sitting on my desk, and _each_ of its two cores runs faster than that. > In short, Alphas hardly constitute high-end hard

Re: FreeBSD for serious performance?

2012-12-09 Thread Adrian Chadd
Right, so the bug here is "why isn't atacam attaching to the nforce4 ultra chipset." So this has changed from "FreeBSD doesn't do NCQ" to "FreeBSD doesn't do NCQ on my particular desktop-aimed motherboard chipset." They're slightly different in scope, wouldn't you agree? Please file a PR and see

Re: FreeBSD for serious performance?

2012-12-09 Thread b.f.
>Right, so the bug here is "why isn't atacam attaching to the nforce4 >ultra chipset." > >So this has changed from "FreeBSD doesn't do NCQ" to "FreeBSD doesn't >do NCQ on my particular desktop-aimed motherboard chipset." They're >slightly different in scope, wouldn't you agree? >Please file a PR

Re: huge ktr buffer

2012-12-09 Thread rank1seeker
> As also Alan suggested, a way to workaround the problem is to increase > NKPT value (e.g. from 32 to 64). Obviously, this is not a proper fix. > For a proper fix the kernel needs to be able to dynamically set the > size of NKPT. In this particular case, this wouldn't be too hard, but > there is

Re: FreeBSD for serious performance?

2012-12-09 Thread Warren Block
On Sun, 9 Dec 2012, Dieter BSD wrote: B. Use GPT, which does not have the CHS baggage.  It is easier and more    versatile.  My systems with GPT disks don't complain about track    alignment.  Or maybe that's ahci(4)'s doing. I never found a way to boot from different partitions, much less dif

Re: Possible obscure socket leak when system under load and listener is slow to accept

2012-12-09 Thread Richard Sharpe
On Sun, 2012-12-09 at 00:10 -0800, Alfred Perlstein wrote: > On 12/8/12 5:05 PM, Richard Sharpe wrote: > > On Sun, 2012-12-09 at 00:50 +0100, Andre Oppermann wrote: > >>> Hi folks, > >>> > >>> Our QA group (at xxx) using Samba and smbtorture has been seeing a > >>> lot of cases where accept returns

Re: FreeBSD for serious performance?

2012-12-09 Thread Ronald F. Guilmette
In message <20121209091305.238...@gmx.com>, "Dieter BSD" wrote: >Ronald writes: >> the last Alpha to be produced was shipped way back in 2004... eight years >> ago... with a top speed of 1.3 GHz.  I now have a cheap little media player >> thingy sitting on my desk, and _each_ of its two cores

Re: FreeBSD for serious performance?

2012-12-09 Thread Adrian Chadd
.. the problem with Alpha is that there wasn't anyone who wanted to support it any longer. If someone wanted to stand up and resurrect it, support it, etc; I doubt the FreeBSD project would complain. The same thing is happening with ia64. Marcel still cares and he still does a lot of ia64 heavy l

Re: GELI on USB

2012-12-09 Thread Eitan Adler
On 5 December 2012 04:54, Ali Mashtizadeh wrote: > I think I found a possible bug in 9.1 where I configured an encrypted > root partition on a USB key and I have trouble entering the password > from what seems like a race. Could you please submit a PR about this so it doesn't get lost in the arch

using FreeBSD to create a completely new OS

2012-12-09 Thread Aryeh Friedman
For personal hobby reasons I want to write an OS completely from scratch (due to some aspects of the design no existing OS is a suitable starting place)... what I mean is I want to start with the MBR (boot0) and go on from there... I only have one *REAL* machine to work with which means I need to w

Re: FreeBSD for serious performance?

2012-12-09 Thread Dieter BSD
[ lack of SATA NCQ support for nforce4-ultra ] Adrian writes: > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=e2e031eb09760c36099ac127eeb175e06d257aef which is: The mcp61 has bug with ncq. - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_SATA), SWNCQ }, - {

Re: FreeBSD for serious performance?

2012-12-09 Thread b.f.
>[ lack of SATA NCQ support for nforce4-ultra ] > > > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=e2e031eb09760c36099ac127eeb175e06d257aef > >which is: > >The mcp61 has bug with ncq. >- { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_SATA), SWNCQ }, >- { PCI_

Re: using FreeBSD to create a completely new OS

2012-12-09 Thread Zaphod Beeblebrox
On Sun, Dec 9, 2012 at 11:48 PM, Aryeh Friedman wrote: > For personal hobby reasons I want to write an OS completely from > scratch (due to some aspects of the design no existing OS is a > suitable starting place)... what I mean is I want to start with the > MBR (boot0) and go on from there... I o

Re: using FreeBSD to create a completely new OS

2012-12-09 Thread Aryeh Friedman
On Mon, Dec 10, 2012 at 2:38 AM, Zaphod Beeblebrox wrote: > On Sun, Dec 9, 2012 at 11:48 PM, Aryeh Friedman > wrote: >> For personal hobby reasons I want to write an OS completely from >> scratch (due to some aspects of the design no existing OS is a >> suitable starting place)... what I mean is