Robert Watson wrote:
On Fri, 27 Mar 2009, Poul-Henning Kamp wrote:
In message ,
Robert Wats on writes:
In which case user application threads will need to know their CPU [...]
Didn't jemalloc solve that problem once already ?
I think jemalloc implements thread-affinity for arenas rather t
On Fri, 27 Mar 2009, Poul-Henning Kamp wrote:
In message , Robert
Wats on writes:
In which case user application threads will need to know their CPU [...]
Didn't jemalloc solve that problem once already ?
I think jemalloc implements thread-affinity for arenas rather than
CPU-affinity in
In message , Robert Wats
on writes:
>In which case user application threads will need to
>know their CPU [...]
Didn't jemalloc solve that problem once already ?
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
p...@freebsd.org | TCP/IP since RFC 956
FreeBSD committer | BSD
On Fri, 27 Mar 2009, Poul-Henning Kamp wrote:
In message , Robert Wats
on writes:
I guess interesting questions are whether (a) it would be desirable to have
per-page, per-cpu, or per-thread mappings. If there are non-synchronized
TSCs, then there might be some interesting advantages to a p
In message , Robert Wats
on writes:
>I guess interesting questions are whether (a) it would be desirable to have
>per-page, per-cpu, or per-thread mappings. If there are non-synchronized
>TSCs, then there might be some interesting advantages to a per-CPU page.
Rule #3:
The only thing w
On Fri, 27 Mar 2009, Sergey Babkin wrote:
Would not a normal mmap be duplicated on fork? I'd do it as a small
pseudo-= driver
that allows to mmap this page. Then libc would open this pseudo-d=
evice and mmap it,
either in the on-load handler or on the first call of=
gettimeofday().
Would not a normal mmap be duplicated on fork? I'd do it as a small
pseudo-= driver
that allows to mmap this page. Then libc would open this pseudo-d evice
and mmap it,
either in the on-load handler or on the first call of gettimeofday(). I
think, that should
be it, no specia
Hi Folks:
I'm debugging an issue with a third-party driver that causes an NMI
during driver initialization. It only occurs for one version of the
driver thus far. I want to isolate what triggers the NMI and
generally get a feel for the initialization of the hardware.
I'm running a 6.x-amd64 ker
Hi, Scott & all--
On Mar 27, 2009, at 11:30 AM, Scott Long wrote:
Robert Watson wrote:
On Fri, 27 Mar 2009, Scott Long wrote:
I've been talking about this for years. All I need is help with
the VM magic to create the page on fork. I also want two pages,
one global for gettimeofday (and an
Scott Long wrote:
Robert Watson wrote:
On Fri, 27 Mar 2009, Scott Long wrote:
I've been talking about this for years. All I need is help with the
VM magic to create the page on fork. I also want two pages, one
global for gettimeofday (and any other global data we can think of)
and one per
Scott Long wrote:
I've been talking about this for years. All I need is help with the VM
magic to create the page on fork. I also want two pages, one global
for gettimeofday (and any other global data we can think of) and one
per-process for static data like getpid/getgid.
interestingly it i
Robert Watson wrote:
On Fri, 27 Mar 2009, Scott Long wrote:
I've been talking about this for years. All I need is help with the
VM magic to create the page on fork. I also want two pages, one
global for gettimeofday (and any other global data we can think of)
and one per-process for static
On Fri, 27 Mar 2009, Scott Long wrote:
I've been talking about this for years. All I need is help with the VM
magic to create the page on fork. I also want two pages, one global for
gettimeofday (and any other global data we can think of) and one per-process
for static data like getpid/getg
On Fri, 27 Mar 2009, Scott Long wrote:
I've been talking about this for years. All I need is help with the VM
magic to create the page on fork. I also want two pages, one global for
gettimeofday (and any other global data we can think of) and one per-process
for static data like getpid/getg
On Fri, Mar 27, 2009 at 1:31 PM, Poul-Henning Kamp wrote:
> In message <49cd0405.1060...@samsco.org>, Scott Long writes:
>
>>I've been talking about this for years. All I need is help with the VM
>>magic to create the page on fork. I also want two pages, one global
>>for gettimeofday (and any ot
In message <49cd0405.1060...@samsco.org>, Scott Long writes:
>I've been talking about this for years. All I need is help with the VM
>magic to create the page on fork. I also want two pages, one global
>for gettimeofday (and any other global data we can think of) and one
>per-process for static
I've been talking about this for years. All I need is help with the VM
magic to create the page on fork. I also want two pages, one global
for gettimeofday (and any other global data we can think of) and one
per-process for static data like getpid/getgid.
Scott
Sergey Babkin wrote:
(Sorr
On 3/27/09, Matthias Apitz wrote:
>
> Hello,
>
> When I boot my EeePC from USB key (/dev/da0s1a) -CURRENT it sees the two SSD
> only
> as
>
> $ ls -l /dev/ad*
> /dev/ad2
> /dev/ad2s1
> /dev/ad2s1a
> /dev/ad3
> /dev/ad3a
>
> I can mount /dev/ad2s1a but ofc not /dev/ad3s1a;
>
> when I'm booting the
On Fri, Mar 27, 2009 at 06:52:32PM +0300, Danny Braniss wrote:
> > Danny Braniss wrote:
> > > at least for me :-)
> > > [and sorry for the cross posting]
> > >
> > > old (March 12 , i know need the svn rev number but...)
> >
> > None of the commit activity on March 12 is jumping out at me as bein
Danny Braniss wrote:
Danny Braniss wrote:
at least for me :-)
[and sorry for the cross posting]
old (March 12 , i know need the svn rev number but...)
None of the commit activity on March 12 is jumping out at me as being
suspicious. However, you are now the second person who has told me
abou
> Danny Braniss wrote:
> > at least for me :-)
> > [and sorry for the cross posting]
> >
> > old (March 12 , i know need the svn rev number but...)
>
> None of the commit activity on March 12 is jumping out at me as being
> suspicious. However, you are now the second person who has told me
> a
(Sorry for the top quoting). Probably the best implementation of
gettimeofd= ay() is to have
a page in the kernel mapped read-only to all the user pr= ocesses. Put
the kernel's idea of time
into this page. Then getting the = time becomes a simple read (OK, two
reads, to make sure
Prashant Vaibhav wrote:
> The primary idea is to improve the performance and resolution of
> gettimeofday() and friends by creating a efficient userspace implementation
> of these functions, along with some supporting modifications to the kernel.
Are you aware of CLOCK_*_FAST family of timecounte
Hello,
When I boot my EeePC from USB key (/dev/da0s1a) -CURRENT it sees the two SSD
only
as
$ ls -l /dev/ad*
/dev/ad2
/dev/ad2s1
/dev/ad2s1a
/dev/ad3
/dev/ad3a
I can mount /dev/ad2s1a but ofc not /dev/ad3s1a;
when I'm booting the RELENG_7 from /dev/ad2s1a itself it looks like this:
$ mount
/
--- On Fri, 3/27/09, Andriy Gapon wrote:
> on 27/03/2009 15:47 Won De Erick said
> the following:
> > --- On Fri, 3/27/09, Andriy Gapon
> wrote:
> >> on 27/03/2009 12:35 Ivan Voras said the
> following:
> >>> One thing that comes to my mind is this:
> >>> http://invisiblethingslab.com/resources
on 27/03/2009 15:47 Won De Erick said the following:
> --- On Fri, 3/27/09, Andriy Gapon wrote:
>> on 27/03/2009 12:35 Ivan Voras said the following:
>>> One thing that comes to my mind is this:
>>> http://invisiblethingslab.com/resources/misc09/smm_cache_fun.pdf
>
> I will add that to the ff:
>
--- On Fri, 3/27/09, Andriy Gapon wrote:
> on 27/03/2009 12:35 Ivan Voras said
> the following:
> > Takanori Watanabe wrote:
> >> In message <17314.10813...@web45811.mail.sp1.yahoo.com>,
> Won De Erick wrote:
> >>> Hi All,
> >>>
> >>> I'm not quite familiar with FreeBSD, but I
> >>> want to do th
In message <17560ccf0903270555oe7d1652p7414a221aa2d6...@mail.gmail.com>,
Prashant Vaibhav writes:
>>[...] these must provide a monotonic timescale when queried interleaved
>> ? Be aware that the TSC may not be, and may not stay synchronized across
>> multiple cores.
>
>The TSC is documented to be
Poul-Henning,
Thanks for the feedback!
>[...] these must provide a monotonic timescale when queried interleaved
> ? Be aware that the TSC may not be, and may not stay synchronized across
> multiple cores.
The TSC is documented to be monotonically increasing across all x86
processors that impleme
on 27/03/2009 12:35 Ivan Voras said the following:
> Takanori Watanabe wrote:
>> In message <17314.10813...@web45811.mail.sp1.yahoo.com>, Won De Erick wrote:
>>> Hi All,
>>>
>>> I'm not quite familiar with FreeBSD, but I want to do the following in
>>> 6.2/7.1
>>> .
>>>
>>> /* Raise IOPL to 3 to
Takanori Watanabe wrote:
> In message <17314.10813...@web45811.mail.sp1.yahoo.com>, Won De Erick wrote:
>> Hi All,
>>
>> I'm not quite familiar with FreeBSD, but I want to do the following in
>> 6.2/7.1
>> .
>>
>> /* Raise IOPL to 3 to open all I/O ports */
>> /* something like 'i386_iopl(3)' *
In message <17314.10813...@web45811.mail.sp1.yahoo.com>, Won De Erick wrote:
>
>Hi All,
>
>I'm not quite familiar with FreeBSD, but I want to do the following in 6.2/7.1
>.
>
> /* Raise IOPL to 3 to open all I/O ports */
> /* something like 'i386_iopl(3)' */
> ...
see i386_get_ioperm(2) or io
Hi All,
I'm not quite familiar with FreeBSD, but I want to do the following in 6.2/7.1.
/* Raise IOPL to 3 to open all I/O ports */
/* something like 'i386_iopl(3)' */
...
/* Open SMRAM access */
outl(unsigned int port, unsigned long int data);
Also, I appreciate comments on the fo
Hello,
I've created a bootable USB key with -CURRENT like this:
# mkdir -p /usr/src/CURRENT/obj
# cd /usr/src/CURRENT
# setenv CVSROOT :pserver:anon...@anoncvs.fr.freebsd.org:/home/ncvs
# cvs login
# cvs checkout src
# cd /usr/src/CURRENT/src
# setenv MAKEOBJDIRPREFIX /usr/src/CURRENT/obj
# ma
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